So erhalten Sie den vollständigen Dateipfad vom URI

99

Ich möchte den vollständigen Dateipfad von einer URI erhalten. Der URI ist kein Bild, aber es ist eine Musikdatei, aber wenn ich es wie die MediaStore-Lösung mache, funktioniert es nicht, wenn der App-Benutzer zB Astro als Browser anstelle von Music Player auswählt. Wie löse ich das?

tim687
quelle

Antworten:

65

Verwenden:

String path = yourAndroidURI.uri.getPath() // "/mnt/sdcard/FileName.mp3"
File file = new File(new URI(path));

oder

String path = yourAndroidURI.uri.toString() // "file:///mnt/sdcard/FileName.mp3"
File file = new File(new URI(path));
Dmytro Danylyk
quelle
4
Die Konstruktordatei (URI) ist undefiniert?
user3241507
4
Das Ergebnis von Uri :: getPath beginnt mit "/" und das Ergebnis von Uri :: toString () beginnt mit "file: //" auf meinem Computer.
BaiJiFeiLong
184
Diese Antwort ist aktiv schädlich und verdient nicht die Stimmen, die sie erhält. Es schlägt fehl, wenn der Uri ein content://oder ein anderer Uri ist, der keine Datei ist.
user1643723
10
Auslöser: java.lang.IllegalArgumentException: URI ist nicht absolut
Anu Martin
13
Ich verstehe nicht, warum dies immer noch die akzeptierte Antwort ist. Es funktioniert heutzutage einfach nicht mehr.
b005t3r
74

Die PathUtil-Methode funktioniert nur unter oreo. Wenn es sich um oreo handelt, ist es wahrscheinlich, dass es abstürzt, da in oreo nicht die ID, sondern der gesamte Pfad in data.getData () angezeigt wird. Sie müssen also nur eine Datei erstellen von uri und erhalten Sie seinen Pfad von getPath () und teilen Sie es. Unten ist der Arbeitscode: -

Uri uri = data.getData(); 
File file = new File(uri.getPath());//create path from uri
final String[] split = file.getPath().split(":");//split the path.
filePath = split[1];//assign it to a string(your choice).

Der obige Code funktioniert in oreo und wenn er unter oreo liegt, funktioniert PathUtil. Danke!

String filePath=PathUtil.getPath(context,yourURI);

PathUtil.java

import android.annotation.SuppressLint; 
import android.content.ContentUris; 
import android.content.Context; 
import android.database.Cursor; 
import android.net.Uri; 
import android.os.Build; 
import android.os.Environment; 
import android.provider.DocumentsContract;
import android.provider.MediaStore;

import java.net.URISyntaxException;

/**
 * Created by Aki on 1/7/2017.
 */

public class PathUtil {
    /*
     * Gets the file path of the given Uri.
     */
    @SuppressLint("NewApi")
    public static String getPath(Context context, Uri uri) throws URISyntaxException {
        final boolean needToCheckUri = Build.VERSION.SDK_INT >= 19;
        String selection = null;
        String[] selectionArgs = null;
        // Uri is different in versions after KITKAT (Android 4.4), we need to
        // deal with different Uris.
        if (needToCheckUri && DocumentsContract.isDocumentUri(context.getApplicationContext(), uri)) {
            if (isExternalStorageDocument(uri)) {
                final String docId = DocumentsContract.getDocumentId(uri);
                final String[] split = docId.split(":");
                return Environment.getExternalStorageDirectory() + "/" + split[1];
            } else if (isDownloadsDocument(uri)) {
                final String id = DocumentsContract.getDocumentId(uri);
                uri = ContentUris.withAppendedId(
                        Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
            } else if (isMediaDocument(uri)) {
                final String docId = DocumentsContract.getDocumentId(uri);
                final String[] split = docId.split(":");
                final String type = split[0];
                if ("image".equals(type)) {
                    uri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
                } else if ("video".equals(type)) {
                    uri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
                } else if ("audio".equals(type)) {
                    uri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
                }
                selection = "_id=?";
                selectionArgs = new String[]{ split[1] };
            }
        }
        if ("content".equalsIgnoreCase(uri.getScheme())) {
            String[] projection = { MediaStore.Images.Media.DATA };
            Cursor cursor = null;
            try {
                cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null);
                int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
                if (cursor.moveToFirst()) {
                    return cursor.getString(column_index);
                }
            } catch (Exception e) {
            }
        } else if ("file".equalsIgnoreCase(uri.getScheme())) {
            return uri.getPath();
        }
        return null;
    }


    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is ExternalStorageProvider.
     */
    public static boolean isExternalStorageDocument(Uri uri) {
        return "com.android.externalstorage.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is DownloadsProvider.
     */
    public static boolean isDownloadsDocument(Uri uri) {
        return "com.android.providers.downloads.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is MediaProvider.
     */
    public static boolean isMediaDocument(Uri uri) {
        return "com.android.providers.media.documents".equals(uri.getAuthority());
    }
}
akhilesh0707
quelle
7
Gibt mir immer noch null.
Tas
5
@ akhilesh0707 getPath () gibt null für externe SD-Kartendateien zurück. Irgendeine Lösung dafür?
KJEjava48
1
Retter des Tages! Danke dir!
Amila Iddamalgoda
1
Dies ist die umfassendste Antwort, die für jede Situation verantwortlich ist, die ich auf sie werfen konnte, und sollte wahrscheinlich die akzeptierte Antwort zu diesem Zeitpunkt sein
u2tall
6
Dies funktioniert nicht mit heruntergeladenen Dateien auf Android 9: java.lang.IllegalArgumentException: Unbekannter URI: Inhalt: // downloads / public_downloads / 18
Philippe
32

Pfad von URI abrufen Verwenden Sie die folgende Klasse für Android alle Versionen. Zugriff auf einen beliebigen Dateityp .

package com.satya.filemangerdemo.common;

import android.annotation.SuppressLint;
import android.content.ContentUris;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;
import android.provider.OpenableColumns;
import android.text.TextUtils;
import android.util.Log;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.util.List;

public class FileUtils {
    private static Uri contentUri = null;

    /**
     * Get a file path from a Uri. This will get the the path for Storage Access
     * Framework Documents, as well as the _data field for the MediaStore and
     * other file-based ContentProviders.<br>
     * <br>
     * Callers should check whether the path is local before assuming it
     * represents a local file.
     *
     * @param context The context.
     * @param uri     The Uri to query.
     */
    @SuppressLint("NewApi")
    public static String getPath(final Context context, final Uri uri) {
        // check here to KITKAT or new version
        final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
        String selection = null;
        String[] selectionArgs = null;
        // DocumentProvider
        if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
            // ExternalStorageProvider
            if (isExternalStorageDocument(uri)) {
                final String docId = DocumentsContract.getDocumentId(uri);
                final String[] split = docId.split(":");
                final String type = split[0];

                String fullPath = getPathFromExtSD(split);
                if (fullPath != "") {
                    return fullPath;
                } else {
                    return null;
                }
            }

            // DownloadsProvider
            else if (isDownloadsDocument(uri)) {
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                    final String id;
                    Cursor cursor = null;
                    try {
                        cursor = context.getContentResolver().query(uri, new String[]{MediaStore.MediaColumns.DISPLAY_NAME}, null, null, null);
                        if (cursor != null && cursor.moveToFirst()) {
                            String fileName = cursor.getString(0);
                            String path = Environment.getExternalStorageDirectory().toString() + "/Download/" + fileName;
                            if (!TextUtils.isEmpty(path)) {
                                return path;
                            }
                        }
                    } finally {
                        if (cursor != null)
                            cursor.close();
                    }
                    id = DocumentsContract.getDocumentId(uri);
                    if (!TextUtils.isEmpty(id)) {
                        if (id.startsWith("raw:")) {
                            return id.replaceFirst("raw:", "");
                        }
                        String[] contentUriPrefixesToTry = new String[]{
                                "content://downloads/public_downloads",
                                "content://downloads/my_downloads"
                        };
                        for (String contentUriPrefix : contentUriPrefixesToTry) {
                            try {
                                final Uri contentUri = ContentUris.withAppendedId(Uri.parse(contentUriPrefix), Long.valueOf(id));

                         /*   final Uri contentUri = ContentUris.withAppendedId(
                                    Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));*/

                                return getDataColumn(context, contentUri, null, null);
                            } catch (NumberFormatException e) {
                                //In Android 8 and Android P the id is not a number
                                return uri.getPath().replaceFirst("^/document/raw:", "").replaceFirst("^raw:", "");
                            }
                        }


                    }

                } else {
                    final String id = DocumentsContract.getDocumentId(uri);
                    final boolean isOreo = Build.VERSION.SDK_INT >= Build.VERSION_CODES.O;
                    if (id.startsWith("raw:")) {
                        return id.replaceFirst("raw:", "");
                    }
                    try {
                        contentUri = ContentUris.withAppendedId(
                                Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));

                    } catch (NumberFormatException e) {
                        e.printStackTrace();
                    }
                    if (contentUri != null) {
                        return getDataColumn(context, contentUri, null, null);
                    }
                }


            }
            // MediaProvider
            else if (isMediaDocument(uri)) {
                final String docId = DocumentsContract.getDocumentId(uri);
                final String[] split = docId.split(":");
                final String type = split[0];

                Uri contentUri = null;

                if ("image".equals(type)) {
                    contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
                } else if ("video".equals(type)) {
                    contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
                } else if ("audio".equals(type)) {
                    contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
                }
                  selection = "_id=?";
                 selectionArgs = new String[]{split[1]};


                return getDataColumn(context, contentUri, selection,
                        selectionArgs);
            } else if (isGoogleDriveUri(uri)) {
                return getDriveFilePath(uri, context);
            }
        }


        // MediaStore (and general)
        else if ("content".equalsIgnoreCase(uri.getScheme())) {

            if (isGooglePhotosUri(uri)) {
                return uri.getLastPathSegment();
            }

            if (isGoogleDriveUri(uri)) {
                return getDriveFilePath(uri, context);
            }
             if( Build.VERSION.SDK_INT == Build.VERSION_CODES.N)
             {
                // return getFilePathFromURI(context,uri);
                 return getMediaFilePathForN(uri, context);
                // return getRealPathFromURI(context,uri);
             }else
             {

                 return getDataColumn(context, uri, null, null);
             }


        }
        // File
        else if ("file".equalsIgnoreCase(uri.getScheme())) {
            return uri.getPath();
        }

        return null;
    }

    /**
     * Check if a file exists on device
     *
     * @param filePath The absolute file path
     */
    private static boolean fileExists(String filePath) {
        File file = new File(filePath);

        return file.exists();
    }


    /**
     * Get full file path from external storage
     *
     * @param pathData The storage type and the relative path
     */
    private static String getPathFromExtSD(String[] pathData) {
        final String type = pathData[0];
        final String relativePath = "/" + pathData[1];
        String fullPath = "";

        // on my Sony devices (4.4.4 & 5.1.1), `type` is a dynamic string
        // something like "71F8-2C0A", some kind of unique id per storage
        // don't know any API that can get the root path of that storage based on its id.
        //
        // so no "primary" type, but let the check here for other devices
        if ("primary".equalsIgnoreCase(type)) {
            fullPath = Environment.getExternalStorageDirectory() + relativePath;
            if (fileExists(fullPath)) {
                return fullPath;
            }
        }

        // Environment.isExternalStorageRemovable() is `true` for external and internal storage
        // so we cannot relay on it.
        //
        // instead, for each possible path, check if file exists
        // we'll start with secondary storage as this could be our (physically) removable sd card
        fullPath = System.getenv("SECONDARY_STORAGE") + relativePath;
        if (fileExists(fullPath)) {
            return fullPath;
        }

        fullPath = System.getenv("EXTERNAL_STORAGE") + relativePath;
        if (fileExists(fullPath)) {
            return fullPath;
        }

        return fullPath;
    }

    private static String getDriveFilePath(Uri uri, Context context) {
        Uri returnUri = uri;
        Cursor returnCursor = context.getContentResolver().query(returnUri, null, null, null, null);
        /*
         * Get the column indexes of the data in the Cursor,
         *     * move to the first row in the Cursor, get the data,
         *     * and display it.
         * */
        int nameIndex = returnCursor.getColumnIndex(OpenableColumns.DISPLAY_NAME);
        int sizeIndex = returnCursor.getColumnIndex(OpenableColumns.SIZE);
        returnCursor.moveToFirst();
        String name = (returnCursor.getString(nameIndex));
        String size = (Long.toString(returnCursor.getLong(sizeIndex)));
        File file = new File(context.getCacheDir(), name);
        try {
            InputStream inputStream = context.getContentResolver().openInputStream(uri);
            FileOutputStream outputStream = new FileOutputStream(file);
            int read = 0;
            int maxBufferSize = 1 * 1024 * 1024;
            int bytesAvailable = inputStream.available();

            //int bufferSize = 1024;
            int bufferSize = Math.min(bytesAvailable, maxBufferSize);

            final byte[] buffers = new byte[bufferSize];
            while ((read = inputStream.read(buffers)) != -1) {
                outputStream.write(buffers, 0, read);
            }
            Log.e("File Size", "Size " + file.length());
            inputStream.close();
            outputStream.close();
            Log.e("File Path", "Path " + file.getPath());
            Log.e("File Size", "Size " + file.length());
        } catch (Exception e) {
            Log.e("Exception", e.getMessage());
        }
        return file.getPath();
    }

    private static String getMediaFilePathForN(Uri uri, Context context) {
        Uri returnUri = uri;
        Cursor returnCursor = context.getContentResolver().query(returnUri, null, null, null, null);
        /*
         * Get the column indexes of the data in the Cursor,
         *     * move to the first row in the Cursor, get the data,
         *     * and display it.
         * */
        int nameIndex = returnCursor.getColumnIndex(OpenableColumns.DISPLAY_NAME);
        int sizeIndex = returnCursor.getColumnIndex(OpenableColumns.SIZE);
        returnCursor.moveToFirst();
        String name = (returnCursor.getString(nameIndex));
        String size = (Long.toString(returnCursor.getLong(sizeIndex)));
        File file = new File(context.getFilesDir(), name);
        try {
            InputStream inputStream = context.getContentResolver().openInputStream(uri);
            FileOutputStream outputStream = new FileOutputStream(file);
            int read = 0;
            int maxBufferSize = 1 * 1024 * 1024;
            int bytesAvailable = inputStream.available();

            //int bufferSize = 1024;
            int bufferSize = Math.min(bytesAvailable, maxBufferSize);

            final byte[] buffers = new byte[bufferSize];
            while ((read = inputStream.read(buffers)) != -1) {
                outputStream.write(buffers, 0, read);
            }
            Log.e("File Size", "Size " + file.length());
            inputStream.close();
            outputStream.close();
            Log.e("File Path", "Path " + file.getPath());
            Log.e("File Size", "Size " + file.length());
        } catch (Exception e) {
            Log.e("Exception", e.getMessage());
        }
        return file.getPath();
    }


    private static String getDataColumn(Context context, Uri uri,
                                        String selection, String[] selectionArgs) {
        Cursor cursor = null;
        final String column = "_data";
        final String[] projection = {column};

        try {
            cursor = context.getContentResolver().query(uri, projection,
                    selection, selectionArgs, null);

            if (cursor != null && cursor.moveToFirst()) {
                final int index = cursor.getColumnIndexOrThrow(column);
                return cursor.getString(index);
            }
        } finally {
            if (cursor != null)
                cursor.close();
        }

        return null;
    }

    /**
     * @param uri - The Uri to check.
     * @return - Whether the Uri authority is ExternalStorageProvider.
     */
    private static boolean isExternalStorageDocument(Uri uri) {
        return "com.android.externalstorage.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri - The Uri to check.
     * @return - Whether the Uri authority is DownloadsProvider.
     */
    private static boolean isDownloadsDocument(Uri uri) {
        return "com.android.providers.downloads.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri - The Uri to check.
     * @return - Whether the Uri authority is MediaProvider.
     */
    private static boolean isMediaDocument(Uri uri) {
        return "com.android.providers.media.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri - The Uri to check.
     * @return - Whether the Uri authority is Google Photos.
     */
    private static boolean isGooglePhotosUri(Uri uri) {
        return "com.google.android.apps.photos.content".equals(uri.getAuthority());
    }


    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is Google Drive.
     */
    private static boolean isGoogleDriveUri(Uri uri) {
        return "com.google.android.apps.docs.storage".equals(uri.getAuthority()) || "com.google.android.apps.docs.storage.legacy".equals(uri.getAuthority());
    }


}
Satyawan Hajare
quelle
2
Wir können auf den Pfad zugreifen, indem wir String strPath = FileUtils.getPath (uri) verwenden.
Satyawan Hajare
1
Die aktualisierte Version des obigen Codes kann sein: stackoverflow.com/questions/13209494/…
SAParkhid
Tolle. meinen Tag gerettet.
Amit Klein
Haben wir eine aktualisierte Antwort dafür, ohne veraltetes getExternalStorageDirectory (), @Nadeem Iqbal zu verwenden? -
MdBasha
25

Versuche dies.

public String getRealPathFromURI(Uri contentUri) 
{
     String[] proj = { MediaStore.Audio.Media.DATA };
     Cursor cursor = managedQuery(contentUri, proj, null, null, null);
     int column_index = cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.DATA);
     cursor.moveToFirst();
     return cursor.getString(column_index);
}
Chirag
quelle
12
Codeänderungen werden häufig abgelehnt. Ich bemerkte eine, die eine alternative Funktion vorschlug, die nicht veraltet ist
Martin Smith
11
das gibt mir null cursor, uri ist so etwas - file: ///
Jimit Patel
3
@ MartinSmith immer nochnull
Ankita Shah
@ AnkitaShah: Sie müssen versuchen, unten Antwort für verschiedene Android-Version
Anand Savjani
18

Sie können get file path aus verschiedenen SDk-Versionen verwenden

Verwenden Sie dafür RealPathUtils

public class RealPathUtils {

@SuppressLint("NewApi")
public static String getRealPathFromURI_API19(Context context, Uri uri){
    String filePath = "";
    String wholeID = DocumentsContract.getDocumentId(uri);

    // Split at colon, use second item in the array
    String id = wholeID.split(":")[1];

    String[] column = { MediaStore.Images.Media.DATA };

    // where id is equal to
    String sel = MediaStore.Images.Media._ID + "=?";

    Cursor cursor = context.getContentResolver().query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
            column, sel, new String[]{ id }, null);

    int columnIndex = cursor.getColumnIndex(column[0]);

    if (cursor.moveToFirst()) {
        filePath = cursor.getString(columnIndex);
    }
    cursor.close();
    return filePath;
}


@SuppressLint("NewApi")
public static String getRealPathFromURI_API11to18(Context context, Uri contentUri) {
    String[] proj = { MediaStore.Images.Media.DATA };
    String result = null;

    CursorLoader cursorLoader = new CursorLoader(
            context,
            contentUri, proj, null, null, null);
    Cursor cursor = cursorLoader.loadInBackground();

    if(cursor != null){
        int column_index =
                cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
        cursor.moveToFirst();
        result = cursor.getString(column_index);
    }
    return result;
}

public static String getRealPathFromURI_BelowAPI11(Context context, Uri contentUri){
    String[] proj = { MediaStore.Images.Media.DATA };
    Cursor cursor = context.getContentResolver().query(contentUri, proj, null, null, null);
    int column_index
            = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
    cursor.moveToFirst();
    return cursor.getString(column_index);
}
}

** Holen Sie sich jetzt den Dateipfad vom URI **

 String path = null;
                if (Build.VERSION.SDK_INT < 11)
                    path = RealPathUtils.getRealPathFromURI_BelowAPI11(MainActivity.this, uri);

                    // SDK >= 11 && SDK < 19
                else if (Build.VERSION.SDK_INT < 19)
                    path = RealPathUtils.getRealPathFromURI_API11to18(MainActivity.this, uri);

                    // SDK > 19 (Android 4.4)
                else
                    path = RealPathUtils.getRealPathFromURI_API19(MainActivity.this, uri);
                Log.d(TAG, "File Path: " + path);
                // Get the file instance
                 File file = new File(path);
Harter Bhavsar
quelle
3
Dies gilt nur für MediaStore.Images.Media. Wenn Sie andere Dateien erhalten möchten, als Sie mit MediaStore.FileColumns verwenden können, zeige ich den Vorgang!
Harte Bhavsar
Dies ist die perfekte Lösung
Ghanshyam Nayma
15

Eine der Antworten auf der aktuellen Seite ( diese ) ist korrekt, weist jedoch einige Fehler auf. Beispielsweise funktioniert es nicht auf Geräten mit API 29+. Ich werde den obigen Code aktualisieren und seine neue Version veröffentlichen. Ich denke, dieser Beitrag sollte als endgültige Antwort markiert werden.

Aktualisierter Code: ( WhatsApp-Unterstützung hinzugefügt )

import android.annotation.SuppressLint;
import android.content.ContentUris;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;
import android.provider.OpenableColumns;
import android.text.TextUtils;
import android.util.Log;
import android.webkit.MimeTypeMap;
import android.widget.Toast;

import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

public class FileUtils {
    private static Uri contentUri = null;

    Context context;

    public FileUtils( Context context) {
        this.context=context;
    }

    @SuppressLint("NewApi")
    public  String getPath( final Uri uri) {
        // check here to KITKAT or new version
        final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
        String selection = null;
        String[] selectionArgs = null;
        // DocumentProvider
        if (isKitKat ) {
            // ExternalStorageProvider

           if (isExternalStorageDocument(uri)) {
                final String docId = DocumentsContract.getDocumentId(uri);
                final String[] split = docId.split(":");
                final String type = split[0];

                String fullPath = getPathFromExtSD(split);
                if (fullPath != "") {
                    return fullPath;
                } else {
                    return null;
                }
            }


            // DownloadsProvider

            if (isDownloadsDocument(uri)) {

                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                    final String id;
                    Cursor cursor = null;
                    try {
                        cursor = context.getContentResolver().query(uri, new String[]{MediaStore.MediaColumns.DISPLAY_NAME}, null, null, null);
                        if (cursor != null && cursor.moveToFirst()) {
                            String fileName = cursor.getString(0);
                            String path = Environment.getExternalStorageDirectory().toString() + "/Download/" + fileName;
                            if (!TextUtils.isEmpty(path)) {
                                return path;
                            }
                        }
                    }
                    finally {
                        if (cursor != null)
                            cursor.close();
                    }
                    id = DocumentsContract.getDocumentId(uri);
                    if (!TextUtils.isEmpty(id)) {
                        if (id.startsWith("raw:")) {
                            return id.replaceFirst("raw:", "");
                        }
                        String[] contentUriPrefixesToTry = new String[]{
                                "content://downloads/public_downloads",
                                "content://downloads/my_downloads"
                        };
                        for (String contentUriPrefix : contentUriPrefixesToTry) {
                            try {
                                final Uri contentUri = ContentUris.withAppendedId(Uri.parse(contentUriPrefix), Long.valueOf(id));


                                return getDataColumn(context, contentUri, null, null);
                            } catch (NumberFormatException e) {
                                //In Android 8 and Android P the id is not a number
                                return uri.getPath().replaceFirst("^/document/raw:", "").replaceFirst("^raw:", "");
                            }
                        }


                    }
                }
                else {
                    final String id = DocumentsContract.getDocumentId(uri);

                    if (id.startsWith("raw:")) {
                        return id.replaceFirst("raw:", "");
                    }
                    try {
                        contentUri = ContentUris.withAppendedId(
                                Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
                    }
                    catch (NumberFormatException e) {
                        e.printStackTrace();
                    }
                    if (contentUri != null) {

                        return getDataColumn(context, contentUri, null, null);
                    }
                }
            }


            // MediaProvider
           if (isMediaDocument(uri)) {
                final String docId = DocumentsContract.getDocumentId(uri);
                final String[] split = docId.split(":");
                final String type = split[0];

                Uri contentUri = null;

                if ("image".equals(type)) {
                    contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
                } else if ("video".equals(type)) {
                    contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
                } else if ("audio".equals(type)) {
                    contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
                }
                selection = "_id=?";
                selectionArgs = new String[]{split[1]};


                return getDataColumn(context, contentUri, selection,
                        selectionArgs);
            }

           if (isGoogleDriveUri(uri)) {
                return getDriveFilePath(uri);
            }

           if(isWhatsAppFile(uri)){
                return getFilePathForWhatsApp(uri);
            }


           if ("content".equalsIgnoreCase(uri.getScheme())) {

                if (isGooglePhotosUri(uri)) {
                    return uri.getLastPathSegment();
                }
                if (isGoogleDriveUri(uri)) {
                    return getDriveFilePath(uri);
                }
                if( Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q)
                {

                    // return getFilePathFromURI(context,uri);
                    return copyFileToInternalStorage(uri,"userfiles");
                    // return getRealPathFromURI(context,uri);
                }
                else
                {
                    return getDataColumn(context, uri, null, null);
                }

           }
           if ("file".equalsIgnoreCase(uri.getScheme())) {
                return uri.getPath();
            }
        }
        else {

            if(isWhatsAppFile(uri)){
                return getFilePathForWhatsApp(uri);
            }

            if ("content".equalsIgnoreCase(uri.getScheme())) {
                String[] projection = {
                        MediaStore.Images.Media.DATA
                };
                Cursor cursor = null;
                try {
                    cursor = context.getContentResolver()
                            .query(uri, projection, selection, selectionArgs, null);
                    int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
                    if (cursor.moveToFirst()) {
                        return cursor.getString(column_index);
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }




        return null;
    }

    private  boolean fileExists(String filePath) {
        File file = new File(filePath);

        return file.exists();
    }

    private String getPathFromExtSD(String[] pathData) {
        final String type = pathData[0];
        final String relativePath = "/" + pathData[1];
        String fullPath = "";

        // on my Sony devices (4.4.4 & 5.1.1), `type` is a dynamic string
        // something like "71F8-2C0A", some kind of unique id per storage
        // don't know any API that can get the root path of that storage based on its id.
        //
        // so no "primary" type, but let the check here for other devices
        if ("primary".equalsIgnoreCase(type)) {
            fullPath = Environment.getExternalStorageDirectory() + relativePath;
            if (fileExists(fullPath)) {
                return fullPath;
            }
        }

        // Environment.isExternalStorageRemovable() is `true` for external and internal storage
        // so we cannot relay on it.
        //
        // instead, for each possible path, check if file exists
        // we'll start with secondary storage as this could be our (physically) removable sd card
        fullPath = System.getenv("SECONDARY_STORAGE") + relativePath;
        if (fileExists(fullPath)) {
            return fullPath;
        }

        fullPath = System.getenv("EXTERNAL_STORAGE") + relativePath;
        if (fileExists(fullPath)) {
            return fullPath;
        }

        return fullPath;
    }

    private String getDriveFilePath(Uri uri) {
        Uri returnUri = uri;
        Cursor returnCursor = context.getContentResolver().query(returnUri, null, null, null, null);
        /*
         * Get the column indexes of the data in the Cursor,
         *     * move to the first row in the Cursor, get the data,
         *     * and display it.
         * */
        int nameIndex = returnCursor.getColumnIndex(OpenableColumns.DISPLAY_NAME);
        int sizeIndex = returnCursor.getColumnIndex(OpenableColumns.SIZE);
        returnCursor.moveToFirst();
        String name = (returnCursor.getString(nameIndex));
        String size = (Long.toString(returnCursor.getLong(sizeIndex)));
        File file = new File(context.getCacheDir(), name);
        try {
            InputStream inputStream = context.getContentResolver().openInputStream(uri);
            FileOutputStream outputStream = new FileOutputStream(file);
            int read = 0;
            int maxBufferSize = 1 * 1024 * 1024;
            int bytesAvailable = inputStream.available();

            //int bufferSize = 1024;
            int bufferSize = Math.min(bytesAvailable, maxBufferSize);

            final byte[] buffers = new byte[bufferSize];
            while ((read = inputStream.read(buffers)) != -1) {
                outputStream.write(buffers, 0, read);
            }
            Log.e("File Size", "Size " + file.length());
            inputStream.close();
            outputStream.close();
            Log.e("File Path", "Path " + file.getPath());
            Log.e("File Size", "Size " + file.length());
        } catch (Exception e) {
            Log.e("Exception", e.getMessage());
        }
        return file.getPath();
    }

    /***
     * Used for Android Q+
     * @param uri
     * @param newDirName if you want to create a directory, you can set this variable
     * @return
     */
    private String copyFileToInternalStorage(Uri uri,String newDirName) {
        Uri returnUri = uri;

        Cursor returnCursor = context.getContentResolver().query(returnUri, new String[]{
                OpenableColumns.DISPLAY_NAME,OpenableColumns.SIZE
        }, null, null, null);


        /*
         * Get the column indexes of the data in the Cursor,
         *     * move to the first row in the Cursor, get the data,
         *     * and display it.
         * */
        int nameIndex = returnCursor.getColumnIndex(OpenableColumns.DISPLAY_NAME);
        int sizeIndex = returnCursor.getColumnIndex(OpenableColumns.SIZE);
        returnCursor.moveToFirst();
        String name = (returnCursor.getString(nameIndex));
        String size = (Long.toString(returnCursor.getLong(sizeIndex)));

        File output;
        if(!newDirName.equals("")) {
            File dir = new File(context.getFilesDir() + "/" + newDirName);
            if (!dir.exists()) {
                dir.mkdir();
            }
            output = new File(context.getFilesDir() + "/" + newDirName + "/" + name);
        }
        else{
            output = new File(context.getFilesDir() + "/" + name);
        }
        try {
            InputStream inputStream = context.getContentResolver().openInputStream(uri);
            FileOutputStream outputStream = new FileOutputStream(output);
            int read = 0;
            int bufferSize = 1024;
            final byte[] buffers = new byte[bufferSize];
            while ((read = inputStream.read(buffers)) != -1) {
                outputStream.write(buffers, 0, read);
            }

            inputStream.close();
            outputStream.close();

        }
        catch (Exception e) {

            Log.e("Exception", e.getMessage());
        }

        return output.getPath();
    }

    private String getFilePathForWhatsApp(Uri uri){
            return  copyFileToInternalStorage(uri,"whatsapp");
    }

    private String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {
        Cursor cursor = null;
        final String column = "_data";
        final String[] projection = {column};

        try {
            cursor = context.getContentResolver().query(uri, projection,
                    selection, selectionArgs, null);

            if (cursor != null && cursor.moveToFirst()) {
                final int index = cursor.getColumnIndexOrThrow(column);
                return cursor.getString(index);
            }
        }
        finally {
            if (cursor != null)
                cursor.close();
        }

        return null;
    }

    private  boolean isExternalStorageDocument(Uri uri) {
        return "com.android.externalstorage.documents".equals(uri.getAuthority());
    }

    private  boolean isDownloadsDocument(Uri uri) {
        return "com.android.providers.downloads.documents".equals(uri.getAuthority());
    }

    private  boolean isMediaDocument(Uri uri) {
        return "com.android.providers.media.documents".equals(uri.getAuthority());
    }

    private  boolean isGooglePhotosUri(Uri uri) {
        return "com.google.android.apps.photos.content".equals(uri.getAuthority());
    }

    public boolean isWhatsAppFile(Uri uri){
        return "com.whatsapp.provider.media".equals(uri.getAuthority());
    }

    private  boolean isGoogleDriveUri(Uri uri) {
        return "com.google.android.apps.docs.storage".equals(uri.getAuthority()) || "com.google.android.apps.docs.storage.legacy".equals(uri.getAuthority());
    }


}
SAParkhid
quelle
Haben Sie dies mit der neuen Google Fotos-App versucht? es funktioniert nicht.
Sagte El-Abady
@ SayedEl-Abady danke, ich werde es überprüfen und meinen Code aktualisieren.
SAParkhid
Du bist mein Held
Kenji Kawaida Villegas
Danke, Mann. Du bist ein Lebensretter. Aber ich würde vorschlagen, dass Sie dies im öffentlichen Kern von Github behalten. damit wir in der Lage sind, nachfolgende Updates einfach als Lesezeichen zu
speichern
Erwägen Sie, es als Bibliothek in Github zu veröffentlichen. Ich fand es von Android 4 bis 10 am konsistentesten
mustangDC
10
package com.utils;

import android.annotation.SuppressLint;
import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;
import android.support.annotation.RequiresApi;
import android.text.TextUtils;
import android.util.Log;

import org.apache.commons.io.IOUtils;

import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;

public class FileUtils {

    /* Get uri related content real local file path. */
    public static String getPath(Context ctx, Uri uri) {
        String ret;
        try {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
                // Android OS above sdk version 19.
                ret = getUriRealPathAboveKitkat(ctx, uri);
            } else {
                // Android OS below sdk version 19
                ret = getRealPath(ctx.getContentResolver(), uri, null);
            }
        } catch (Exception e) {
            e.printStackTrace();
            Log.d("DREG", "FilePath Catch: " + e);
            ret = getFilePathFromURI(ctx, uri);
        }
        return ret;
    }

    private static String getFilePathFromURI(Context context, Uri contentUri) {
        //copy file and send new file path
        String fileName = getFileName(contentUri);
        if (!TextUtils.isEmpty(fileName)) {
            String TEMP_DIR_PATH = Environment.getExternalStorageDirectory().getPath();
            File copyFile = new File(TEMP_DIR_PATH + File.separator + fileName);
            Log.d("DREG", "FilePath copyFile: " + copyFile);
            copy(context, contentUri, copyFile);
            return copyFile.getAbsolutePath();
        }
        return null;
    }

    public static String getFileName(Uri uri) {
        if (uri == null) return null;
        String fileName = null;
        String path = uri.getPath();
        int cut = path.lastIndexOf('/');
        if (cut != -1) {
            fileName = path.substring(cut + 1);
        }
        return fileName;
    }

    public static void copy(Context context, Uri srcUri, File dstFile) {
        try {
            InputStream inputStream = context.getContentResolver().openInputStream(srcUri);
            if (inputStream == null) return;
            OutputStream outputStream = new FileOutputStream(dstFile);
            IOUtils.copyStream(inputStream, outputStream); // org.apache.commons.io
            inputStream.close();
            outputStream.close();
        } catch (Exception e) { // IOException
            e.printStackTrace();
        }
    }

    @RequiresApi(api = Build.VERSION_CODES.KITKAT)
    private static String getUriRealPathAboveKitkat(Context ctx, Uri uri) {
        String ret = "";

        if (ctx != null && uri != null) {

            if (isContentUri(uri)) {
                if (isGooglePhotoDoc(uri.getAuthority())) {
                    ret = uri.getLastPathSegment();
                } else {
                    ret = getRealPath(ctx.getContentResolver(), uri, null);
                }
            } else if (isFileUri(uri)) {
                ret = uri.getPath();
            } else if (isDocumentUri(ctx, uri)) {

                // Get uri related document id.
                String documentId = DocumentsContract.getDocumentId(uri);

                // Get uri authority.
                String uriAuthority = uri.getAuthority();

                if (isMediaDoc(uriAuthority)) {
                    String idArr[] = documentId.split(":");
                    if (idArr.length == 2) {
                        // First item is document type.
                        String docType = idArr[0];

                        // Second item is document real id.
                        String realDocId = idArr[1];

                        // Get content uri by document type.
                        Uri mediaContentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
                        if ("image".equals(docType)) {
                            mediaContentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
                        } else if ("video".equals(docType)) {
                            mediaContentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
                        } else if ("audio".equals(docType)) {
                            mediaContentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
                        }

                        // Get where clause with real document id.
                        String whereClause = MediaStore.Images.Media._ID + " = " + realDocId;

                        ret = getRealPath(ctx.getContentResolver(), mediaContentUri, whereClause);
                    }

                } else if (isDownloadDoc(uriAuthority)) {
                    // Build download uri.
                    Uri downloadUri = Uri.parse("content://downloads/public_downloads");

                    // Append download document id at uri end.
                    Uri downloadUriAppendId = ContentUris.withAppendedId(downloadUri, Long.valueOf(documentId));

                    ret = getRealPath(ctx.getContentResolver(), downloadUriAppendId, null);

                } else if (isExternalStoreDoc(uriAuthority)) {
                    String idArr[] = documentId.split(":");
                    if (idArr.length == 2) {
                        String type = idArr[0];
                        String realDocId = idArr[1];

                        if ("primary".equalsIgnoreCase(type)) {
                            ret = Environment.getExternalStorageDirectory() + "/" + realDocId;
                        }
                    }
                }
            }
        }

        return ret;
    }

    /* Check whether this uri represent a document or not. */
    @RequiresApi(api = Build.VERSION_CODES.KITKAT)
    private static boolean isDocumentUri(Context ctx, Uri uri) {
        boolean ret = false;
        if (ctx != null && uri != null) {
            ret = DocumentsContract.isDocumentUri(ctx, uri);
        }
        return ret;
    }

    /* Check whether this uri is a content uri or not.
     *  content uri like content://media/external/images/media/1302716
     *  */
    private static boolean isContentUri(Uri uri) {
        boolean ret = false;
        if (uri != null) {
            String uriSchema = uri.getScheme();
            if ("content".equalsIgnoreCase(uriSchema)) {
                ret = true;
            }
        }
        return ret;
    }

    /* Check whether this uri is a file uri or not.
     *  file uri like file:///storage/41B7-12F1/DCIM/Camera/IMG_20180211_095139.jpg
     * */
    private static boolean isFileUri(Uri uri) {
        boolean ret = false;
        if (uri != null) {
            String uriSchema = uri.getScheme();
            if ("file".equalsIgnoreCase(uriSchema)) {
                ret = true;
            }
        }
        return ret;
    }

    /* Check whether this document is provided by ExternalStorageProvider. */
    private static boolean isExternalStoreDoc(String uriAuthority) {
        boolean ret = false;

        if ("com.android.externalstorage.documents".equals(uriAuthority)) {
            ret = true;
        }

        return ret;
    }

    /* Check whether this document is provided by DownloadsProvider. */
    private static boolean isDownloadDoc(String uriAuthority) {
        boolean ret = false;

        if ("com.android.providers.downloads.documents".equals(uriAuthority)) {
            ret = true;
        }

        return ret;
    }

    /* Check whether this document is provided by MediaProvider. */
    private static boolean isMediaDoc(String uriAuthority) {
        boolean ret = false;

        if ("com.android.providers.media.documents".equals(uriAuthority)) {
            ret = true;
        }

        return ret;
    }

    /* Check whether this document is provided by google photos. */
    private static boolean isGooglePhotoDoc(String uriAuthority) {
        boolean ret = false;

        if ("com.google.android.apps.photos.content".equals(uriAuthority)) {
            ret = true;
        }

        return ret;
    }

    /* Return uri represented document file real local path.*/
    @SuppressLint("Recycle")
    private static String getRealPath(ContentResolver contentResolver, Uri uri, String whereClause) {
        String ret = "";

        // Query the uri with condition.
        Cursor cursor = contentResolver.query(uri, null, whereClause, null, null);

        if (cursor != null) {
            boolean moveToFirst = cursor.moveToFirst();
            if (moveToFirst) {

                // Get columns name by uri type.
                String columnName = MediaStore.Images.Media.DATA;

                if (uri == MediaStore.Images.Media.EXTERNAL_CONTENT_URI) {
                    columnName = MediaStore.Images.Media.DATA;
                } else if (uri == MediaStore.Audio.Media.EXTERNAL_CONTENT_URI) {
                    columnName = MediaStore.Audio.Media.DATA;
                } else if (uri == MediaStore.Video.Media.EXTERNAL_CONTENT_URI) {
                    columnName = MediaStore.Video.Media.DATA;
                }

                // Get column index.
                int columnIndex = cursor.getColumnIndex(columnName);

                // Get column value which is the uri related file local path.
                ret = cursor.getString(columnIndex);
            }
        }

        return ret;
    }

}

Fügen Sie dies in der Datei build.gradle hinzu

implementation 'org.apache.commons:commons-lang3:3.4'

Rufen FileUtils.getPath(context, uri);Sie jetzt von Ihrer Hauptklasse an.

Ahamadullah Saikat
quelle
6

Ich weiß, dass dies bereits beantwortet wurde. Aber es gibt einige Probleme, die ich in den Kommentaren gefunden habe. Von hier aus habe ich eine großartige zuverlässige Lösung gefunden

um es zu benutzen File file=FileUtils.getFile(uri);

public class FileUtils {

//replace this with your authority
public static final String AUTHORITY = "com.ianhanniballake.localstorage.documents";


private FileUtils() {
} //private constructor to enforce Singleton pattern

/**
 * TAG for log messages.
 */
static final String TAG = "FileUtils";
private static final boolean DEBUG = false; // Set to true to enable logging


/**
 * @return Whether the URI is a local one.
 */
public static boolean isLocal(String url) {
    if (url != null && !url.startsWith("http://") && !url.startsWith("https://")) {
        return true;
    }
    return false;
}


public static boolean isLocalStorageDocument(Uri uri) {
    return AUTHORITY.equals(uri.getAuthority());
}

/**
 * @param uri The Uri to check.
 * @return Whether the Uri authority is ExternalStorageProvider.
 * @author paulburke
 */
public static boolean isExternalStorageDocument(Uri uri) {
    return "com.android.externalstorage.documents".equals(uri.getAuthority());
}

/**
 * @param uri The Uri to check.
 * @return Whether the Uri authority is DownloadsProvider.
 * @author paulburke
 */
public static boolean isDownloadsDocument(Uri uri) {
    return "com.android.providers.downloads.documents".equals(uri.getAuthority());
}

/**
 * @param uri The Uri to check.
 * @return Whether the Uri authority is MediaProvider.
 * @author paulburke
 */
public static boolean isMediaDocument(Uri uri) {
    return "com.android.providers.media.documents".equals(uri.getAuthority());
}

/**
 * @param uri The Uri to check.
 * @return Whether the Uri authority is Google Photos.
 */
public static boolean isGooglePhotosUri(Uri uri) {
    return "com.google.android.apps.photos.content".equals(uri.getAuthority());
}

/**
 * Get the value of the data column for this Uri. This is useful for
 * MediaStore Uris, and other file-based ContentProviders.
 *
 * @param context       The context.
 * @param uri           The Uri to query.
 * @param selection     (Optional) Filter used in the query.
 * @param selectionArgs (Optional) Selection arguments used in the query.
 * @return The value of the _data column, which is typically a file path.
 * @author paulburke
 */
public static String getDataColumn(Context context, Uri uri, String selection,
                                   String[] selectionArgs) {

    Cursor cursor = null;
    final String column = "_data";
    final String[] projection = {
            column
    };

    try {
        cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs,
                null);
        if (cursor != null && cursor.moveToFirst()) {
            if (DEBUG)
                DatabaseUtils.dumpCursor(cursor);

            final int column_index = cursor.getColumnIndexOrThrow(column);
            return cursor.getString(column_index);
        }
    } finally {
        if (cursor != null)
            cursor.close();
    }
    return null;
}

/**
 * Get a file path from a Uri. This will get the the path for Storage Access
 * Framework Documents, as well as the _data field for the MediaStore and
 * other file-based ContentProviders.<br>
 * <br>
 * Callers should check whether the path is local before assuming it
 * represents a local file.
 *
 * @param context The context.
 * @param uri     The Uri to query.
 * @author paulburke
 * @see #isLocal(String)
 * @see #getFile(Context, Uri)
 */
public static String getPath(final Context context, final Uri uri) {


    final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;

    // DocumentProvider
    if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
        // LocalStorageProvider
        if (isLocalStorageDocument(uri)) {
            // The path is the id
            return DocumentsContract.getDocumentId(uri);
        }
        // ExternalStorageProvider
        else if (isExternalStorageDocument(uri)) {
            final String docId = DocumentsContract.getDocumentId(uri);
            final String[] split = docId.split(":");
            final String type = split[0];

            if ("primary".equalsIgnoreCase(type)) {
                return Environment.getExternalStorageDirectory() + "/" + split[1];
            }

            // TODO handle non-primary volumes
        }
        // DownloadsProvider
        else if (isDownloadsDocument(uri)) {

            final String id = DocumentsContract.getDocumentId(uri);
            final Uri contentUri = ContentUris.withAppendedId(
                    Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));

            return getDataColumn(context, contentUri, null, null);
        }
        // MediaProvider
        else if (isMediaDocument(uri)) {
            final String docId = DocumentsContract.getDocumentId(uri);
            final String[] split = docId.split(":");
            final String type = split[0];

            Uri contentUri = null;
            if ("image".equals(type)) {
                contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
            } else if ("video".equals(type)) {
                contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
            } else if ("audio".equals(type)) {
                contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
            }

            final String selection = "_id=?";
            final String[] selectionArgs = new String[]{
                    split[1]
            };

            return getDataColumn(context, contentUri, selection, selectionArgs);
        }
    }
    // MediaStore (and general)
    else if ("content".equalsIgnoreCase(uri.getScheme())) {

        // Return the remote address
        if (isGooglePhotosUri(uri))
            return uri.getLastPathSegment();

        return getDataColumn(context, uri, null, null);
    }
    // File
    else if ("file".equalsIgnoreCase(uri.getScheme())) {
        return uri.getPath();
    }

    return null;
}

/**
 * Convert Uri into File, if possible.
 *
 * @return file A local file that the Uri was pointing to, or null if the
 * Uri is unsupported or pointed to a remote resource.
 * @author paulburke
 * @see #getPath(Context, Uri)
 */
public static File getFile(Context context, Uri uri) {
    if (uri != null) {
        String path = getPath(context, uri);
        if (path != null && isLocal(path)) {
            return new File(path);
        }
    }
    return null;
  }


}
Bishoy Abd
quelle
Danke, es funktioniert, aber auf externem Speicher nicht den perfekten Weg für Android L
Md Imran Choudhury
Ich habe nicht die ganze Klasse hinzugefügt. Überprüfen Sie den Link und verwenden Sie die vollständige Klasse. Ich bin sicher, es wird Ihr Problem beheben.
Bishoy Abd
Ja, ich versuche es auch, aber das gleiche Ergebnis :(
Md Imran Choudhury
Dies scheint fehlzuschlagen, wenn sich die Datei auf einer externen SD-Karte befindet (gibt Nullen zurück). Irgendeine Lösung?
Schlange
@Snake hast du eine Lösung dafür gefunden?
Usman Rana
3

Snippet-Code, wenn Sie den Dateipfad erhalten.

 Uri fileUri = data.getData();
 FilePathHelper filePathHelper = new FilePathHelper();
 String path = "";
 if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.KITKAT) {
       if (filePathHelper.getPathnew(fileUri, this) != null) {
              path = filePathHelper.getPathnew(fileUri, this).toLowerCase();
       } else {
              path = filePathHelper.getFilePathFromURI(fileUri, this).toLowerCase();
       }
 } else {
       path = filePathHelper.getPath(fileUri, this).toLowerCase();
 }

Bellow ist eine Klasse, auf die durch Erstellen eines neuen Objekts zugegriffen werden kann. Sie müssen auch eine Abhängigkeit in Gradel hinzufügenimplementation 'org.apache.directory.studio:org.apache.commons.io:2.4'

public class FilePathHelper {

    public FilePathHelper(){

    }

    public String getMimeType(String url) {
        String type = null;
        String extension = MimeTypeMap.getFileExtensionFromUrl(url.replace(" ", ""));
        if (extension != null) {
            type = MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension);
        }
        return type;
    }

    public String getFilePathFromURI(Uri contentUri, Context context) {
        //copy file and send new file path
        String fileName = getFileName(contentUri);
        if (!TextUtils.isEmpty(fileName)) {
            File copyFile = new File(context.getExternalCacheDir() + File.separator + fileName);
            copy(context, contentUri, copyFile);
            return copyFile.getAbsolutePath();
        }
        return null;
    }

    public void copy(Context context, Uri srcUri, File dstFile) {
        try {
            InputStream inputStream = context.getContentResolver().openInputStream(srcUri);
            if (inputStream == null) return;
            OutputStream outputStream = new FileOutputStream(dstFile);
            IOUtils.copy(inputStream, outputStream);
            inputStream.close();
            outputStream.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public String getPath(Uri uri, Context context) {
        String filePath = null;
        final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
        if (isKitKat) {
            filePath = generateFromKitkat(uri, context);
        }

        if (filePath != null) {
            return filePath;
        }

        Cursor cursor = context.getContentResolver().query(uri, new String[]{MediaStore.MediaColumns.DATA}, null, null, null);

        if (cursor != null) {
            if (cursor.moveToFirst()) {
                int columnIndex = cursor.getColumnIndexOrThrow(MediaStore.MediaColumns.DATA);
                filePath = cursor.getString(columnIndex);
            }
            cursor.close();
        }
        return filePath == null ? uri.getPath() : filePath;
    }

    @TargetApi(19)
    private String generateFromKitkat(Uri uri, Context context) {
        String filePath = null;
        if (DocumentsContract.isDocumentUri(context, uri)) {
            String wholeID = DocumentsContract.getDocumentId(uri);

            String id = wholeID.split(":")[1];

            String[] column = {MediaStore.Video.Media.DATA};
            String sel = MediaStore.Video.Media._ID + "=?";

            Cursor cursor = context.getContentResolver().
                    query(MediaStore.Video.Media.EXTERNAL_CONTENT_URI,
                            column, sel, new String[]{id}, null);


            int columnIndex = cursor.getColumnIndex(column[0]);

            if (cursor.moveToFirst()) {
                filePath = cursor.getString(columnIndex);
            }

            cursor.close();
        }
        return filePath;
    }

    public String getFileName(Uri uri) {
        if (uri == null) return null;
        String fileName = null;
        String path = uri.getPath();
        int cut = path.lastIndexOf('/');
        if (cut != -1) {
            fileName = path.substring(cut + 1);
        }
        return fileName;
    }

    @RequiresApi(api = Build.VERSION_CODES.KITKAT)
    public String getPathnew(Uri uri, Context context) {
        final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;

        // DocumentProvider
        if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
            // ExternalStorageProvider
            if (isExternalStorageDocument(uri)) {
                final String docId = DocumentsContract.getDocumentId(uri);
                final String[] split = docId.split(":");
                final String type = split[0];

                if ("primary".equalsIgnoreCase(type)) {
                    return Environment.getExternalStorageDirectory() + "/" + split[1];
                }
                // TODO handle non-primary volumes
            }
            // DownloadsProvider
            else if (isDownloadsDocument(uri)) {
                final String id = DocumentsContract.getDocumentId(uri);
                final Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
                return getDataColumn(context, contentUri, null, null);
            }
            // MediaProvider
            else if (isMediaDocument(uri)) {
                final String docId = DocumentsContract.getDocumentId(uri);
                final String[] split = docId.split(":");
                final String type = split[0];
                Uri contentUri = null;
                if ("image".equals(type)) {
                    contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
                } else if ("video".equals(type)) {
                    contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
                } else if ("audio".equals(type)) {
                    contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
                }
                final String selection = "_id=?";
                final String[] selectionArgs = new String[]{split[1]};
                return getDataColumn(context, contentUri, selection, selectionArgs);
            }
        }
        // MediaStore (and general)
        else if ("content".equalsIgnoreCase(uri.getScheme())) {
            // Return the remote address
            if (isGooglePhotosUri(uri))
                return uri.getLastPathSegment();
            return getDataColumn(context, uri, null, null);
        }
        // File
        else if ("file".equalsIgnoreCase(uri.getScheme())) {
            return uri.getPath();
        }
        return null;
    }

    public String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {
        Cursor cursor = null;
        final String column = "_data";
        final String[] projection = {column};
        try {
            cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null);
            if (cursor != null && cursor.moveToFirst()) {
                final int index = cursor.getColumnIndexOrThrow(column);
                return cursor.getString(index);
            }
        } catch (Exception e) {
            e.printStackTrace();
            System.out.println("Something with exception - " + e.toString());
        } finally {
            if (cursor != null)
                cursor.close();
        }
        return null;
    }

    public boolean isExternalStorageDocument(Uri uri) {
        return "com.android.externalstorage.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is DownloadsProvider.
     */
    public boolean isDownloadsDocument(Uri uri) {
        return "com.android.providers.downloads.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is MediaProvider.
     */
    public boolean isMediaDocument(Uri uri) {
        return "com.android.providers.media.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is Google Photos.
     */
    public boolean isGooglePhotosUri(Uri uri) {
        return "com.google.android.apps.photos.content".equals(uri.getAuthority());
    }
}
Vivek Barai
quelle
Sie sollten die Prüfung für SDK in der Datei PathHelper
Mohammad Desouky
2

Um einen Dateipfad zu erhalten, verwenden Sie diesen (entnommen aus https://github.com/iPaulPro/aFileChooser ).

package com.yourpackage;

import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.database.DatabaseUtils;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;
import android.util.Log;
import android.webkit.MimeTypeMap;

import java.io.File;
import java.io.FileFilter;
import java.text.DecimalFormat;
import java.util.Comparator;
import java.util.List;

/**
 * @author Peli
 * @author paulburke (ipaulpro)
 * @version 2013-12-11
 */
public class FileUtils {
    private FileUtils() {
    } //private constructor to enforce Singleton pattern

    /**
     * TAG for log messages.
     */
    static final String TAG = "FileUtils";
    private static final boolean DEBUG = true; // Set to true to enable logging

    public static final String MIME_TYPE_AUDIO = "audio/*";
    public static final String MIME_TYPE_TEXT = "text/*";
    public static final String MIME_TYPE_IMAGE = "image/*";
    public static final String MIME_TYPE_VIDEO = "video/*";
    public static final String MIME_TYPE_APP = "application/*";

    public static final String HIDDEN_PREFIX = ".";

    /**
     * Gets the extension of a file name, like ".png" or ".jpg".
     *
     * @param uri
     * @return Extension including the dot("."); "" if there is no extension;
     * null if uri was null.
     */
    public static String getExtension(String uri) {
        if (uri == null) {
            return null;
        }

        int dot = uri.lastIndexOf(".");
        if (dot >= 0) {
            return uri.substring(dot);
        } else {
            // No extension.
            return "";
        }
    }

    /**
     * @return Whether the URI is a local one.
     */
    public static boolean isLocal(String url) {
        if (url != null && !url.startsWith("http://") && !url.startsWith("https://")) {
            return true;
        }
        return false;
    }

    /**
     * @return True if Uri is a MediaStore Uri.
     * @author paulburke
     */
    public static boolean isMediaUri(Uri uri) {
        return "media".equalsIgnoreCase(uri.getAuthority());
    }

    /**
     * Convert File into Uri.
     *
     * @param file
     * @return uri
     */
    public static Uri getUri(File file) {
        if (file != null) {
            return Uri.fromFile(file);
        }
        return null;
    }

    /**
     * Returns the path only (without file name).
     *
     * @param file
     * @return
     */
    public static File getPathWithoutFilename(File file) {
        if (file != null) {
            if (file.isDirectory()) {
                // no file to be split off. Return everything
                return file;
            } else {
                String filename = file.getName();
                String filepath = file.getAbsolutePath();

                // Construct path without file name.
                String pathwithoutname = filepath.substring(0,
                        filepath.length() - filename.length());
                if (pathwithoutname.endsWith("/")) {
                    pathwithoutname = pathwithoutname.substring(0, pathwithoutname.length() - 1);
                }
                return new File(pathwithoutname);
            }
        }
        return null;
    }

    /**
     * @return The MIME type for the given file.
     */
    public static String getMimeType(File file) {

        String extension = getExtension(file.getName());

        if (extension.length() > 0)
            return MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension.substring(1));

        return "application/octet-stream";
    }

    /**
     * @return The MIME type for the give Uri.
     */
    public static String getMimeType(Context context, Uri uri) {
        File file = new File(getPath(context, uri));
        return getMimeType(file);
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is {@link LocalStorageProvider}.
     * @author paulburke
     */
    public static boolean isLocalStorageDocument(Uri uri) {
        return LocalStorageProvider.AUTHORITY.equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is ExternalStorageProvider.
     * @author paulburke
     */
    public static boolean isExternalStorageDocument(Uri uri) {
        return "com.android.externalstorage.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is DownloadsProvider.
     * @author paulburke
     */
    public static boolean isDownloadsDocument(Uri uri) {
        return "com.android.providers.downloads.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is MediaProvider.
     * @author paulburke
     */
    public static boolean isMediaDocument(Uri uri) {
        return "com.android.providers.media.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is Google Photos.
     */
    public static boolean isGooglePhotosUri(Uri uri) {
        return "com.google.android.apps.photos.content".equals(uri.getAuthority());
    }

    /**
     * Get the value of the data column for this Uri. This is useful for
     * MediaStore Uris, and other file-based ContentProviders.
     *
     * @param context       The context.
     * @param uri           The Uri to query.
     * @param selection     (Optional) Filter used in the query.
     * @param selectionArgs (Optional) Selection arguments used in the query.
     * @return The value of the _data column, which is typically a file path.
     * @author paulburke
     */
    public static String getDataColumn(Context context, Uri uri, String selection,
                                       String[] selectionArgs) {

        Cursor cursor = null;
        final String column = "_data";
        final String[] projection = {
                column
        };

        try {
            cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs,
                    null);
            if (cursor != null && cursor.moveToFirst()) {
                if (DEBUG)
                    DatabaseUtils.dumpCursor(cursor);

                final int column_index = cursor.getColumnIndexOrThrow(column);
                return cursor.getString(column_index);
            }
        }catch (Exception e){
            e.printStackTrace();
        }finally {
            if (cursor != null)
                cursor.close();
        }
        return null;
    }

    /**
     * Get a file path from a Uri. This will quickGet the the path for Storage Access
     * Framework Documents, as well as the _data field for the MediaStore and
     * other file-based ContentProviders.<br>
     * <br>
     * Callers should check whether the path is local before assuming it
     * represents a local file.
     *
     * @param context The context.
     * @param uri     The Uri to query.
     * @author paulburke
     * @see #isLocal(String)
     * @see #getFile(Context, Uri)
     */
    public static String getPath(final Context context, final Uri uri) {

        if (DEBUG)
            Log.d(TAG + " File -",
                    "Authority: " + uri.getAuthority() +
                            ", Fragment: " + uri.getFragment() +
                            ", Port: " + uri.getPort() +
                            ", Query: " + uri.getQuery() +
                            ", Scheme: " + uri.getScheme() +
                            ", Host: " + uri.getHost() +
                            ", Segments: " + uri.getPathSegments().toString()
            );
        // DocumentProvider
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT && DocumentsContract.isDocumentUri(context, uri)) {
            // LocalStorageProvider
            if (isLocalStorageDocument(uri)) {
                // The path is the id
                return DocumentsContract.getDocumentId(uri);
            }
            // ExternalStorageProvider
            else if (isExternalStorageDocument(uri)) {
                final String docId = DocumentsContract.getDocumentId(uri);
                final String[] split = docId.split(":");
                final String type = split[0];

//                if ("primary".equalsIgnoreCase(type)) {
//                    return Environment.getExternalStorageDirectory() + "/" + split[1];
//                }
                return Environment.getExternalStorageDirectory() + "/" + split[1];

                // TODO handle non-primary volumes
            }
            // DownloadsProvider
            else if (isDownloadsDocument(uri)) {
                try {
                    final String id = DocumentsContract.getDocumentId(uri);
                    Log.d(TAG, "getPath: id= " + id);
                    final Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
                    return getDataColumn(context, contentUri, null, null);
                }catch (Exception e){
                    e.printStackTrace();
                    List<String> segments = uri.getPathSegments();
                    if(segments.size() > 1) {
                        String rawPath = segments.get(1);
                        if(!rawPath.startsWith("/")){
                            return rawPath.substring(rawPath.indexOf("/"));
                        }else {
                            return rawPath;
                        }
                    }
                }
            }
            // MediaProvider
            else if (isMediaDocument(uri)) {
                final String docId = DocumentsContract.getDocumentId(uri);
                final String[] split = docId.split(":");
                final String type = split[0];

                Uri contentUri = null;
                if ("image".equals(type)) {
                    contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
                } else if ("video".equals(type)) {
                    contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
                } else if ("audio".equals(type)) {
                    contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
                }

                final String selection = "_id=?";
                final String[] selectionArgs = new String[]{
                        split[1]
                };

                return getDataColumn(context, contentUri, selection, selectionArgs);
            }
        }
        // MediaStore (and general)
        else if ("content".equalsIgnoreCase(uri.getScheme())) {

            // Return the remote address
            if (isGooglePhotosUri(uri))
                return uri.getLastPathSegment();

            return getDataColumn(context, uri, null, null);
        }
        // File
        else if ("file".equalsIgnoreCase(uri.getScheme())) {
            return uri.getPath();
        }

        return null;
    }

    /**
     * Convert Uri into File, if possible.
     *
     * @return file A local file that the Uri was pointing to, or null if the
     * Uri is unsupported or pointed to a remote resource.
     * @author paulburke
     * @see #getPath(Context, Uri)
     */
    public static File getFile(Context context, Uri uri) {
        if (uri != null) {
            String path = getPath(context, uri);
            if (path != null && isLocal(path)) {
                return new File(path);
            }
        }
        return null;
    }

    /**
     * Get the file size in a human-readable string.
     *
     * @param size
     * @return
     * @author paulburke
     */
    public static String getReadableFileSize(int size) {
        final int BYTES_IN_KILOBYTES = 1024;
        final DecimalFormat dec = new DecimalFormat("###.#");
        final String KILOBYTES = " KB";
        final String MEGABYTES = " MB";
        final String GIGABYTES = " GB";
        float fileSize = 0;
        String suffix = KILOBYTES;

        if (size > BYTES_IN_KILOBYTES) {
            fileSize = size / BYTES_IN_KILOBYTES;
            if (fileSize > BYTES_IN_KILOBYTES) {
                fileSize = fileSize / BYTES_IN_KILOBYTES;
                if (fileSize > BYTES_IN_KILOBYTES) {
                    fileSize = fileSize / BYTES_IN_KILOBYTES;
                    suffix = GIGABYTES;
                } else {
                    suffix = MEGABYTES;
                }
            }
        }
        return String.valueOf(dec.format(fileSize) + suffix);
    }

    /**
     * Attempt to retrieve the thumbnail of given File from the MediaStore. This
     * should not be called on the UI thread.
     *
     * @param context
     * @param file
     * @return
     * @author paulburke
     */
    public static Bitmap getThumbnail(Context context, File file) {
        return getThumbnail(context, getUri(file), getMimeType(file));
    }

    /**
     * Attempt to retrieve the thumbnail of given Uri from the MediaStore. This
     * should not be called on the UI thread.
     *
     * @param context
     * @param uri
     * @return
     * @author paulburke
     */
    public static Bitmap getThumbnail(Context context, Uri uri) {
        return getThumbnail(context, uri, getMimeType(context, uri));
    }

    /**
     * Attempt to retrieve the thumbnail of given Uri from the MediaStore. This
     * should not be called on the UI thread.
     *
     * @param context
     * @param uri
     * @param mimeType
     * @return
     * @author paulburke
     */
    public static Bitmap getThumbnail(Context context, Uri uri, String mimeType) {
        if (DEBUG)
            Log.d(TAG, "Attempting to quickGet thumbnail");

        if (!isMediaUri(uri)) {
            Log.e(TAG, "You can only retrieve thumbnails for images and videos.");
            return null;
        }

        Bitmap bm = null;
        if (uri != null) {
            final ContentResolver resolver = context.getContentResolver();
            Cursor cursor = null;
            try {
                cursor = resolver.query(uri, null, null, null, null);
                if (cursor.moveToFirst()) {
                    final int id = cursor.getInt(0);
                    if (DEBUG)
                        Log.d(TAG, "Got thumb ID: " + id);

                    if (mimeType.contains("video")) {
                        bm = MediaStore.Video.Thumbnails.getThumbnail(
                                resolver,
                                id,
                                MediaStore.Video.Thumbnails.MINI_KIND,
                                null);
                    } else if (mimeType.contains(FileUtils.MIME_TYPE_IMAGE)) {
                        bm = MediaStore.Images.Thumbnails.getThumbnail(
                                resolver,
                                id,
                                MediaStore.Images.Thumbnails.MINI_KIND,
                                null);
                    }
                }
            } catch (Exception e) {
                if (DEBUG)
                    Log.e(TAG, "getThumbnail", e);
            } finally {
                if (cursor != null)
                    cursor.close();
            }
        }
        return bm;
    }

    /**
     * File and folder comparator. TODO Expose sorting option method
     *
     * @author paulburke
     */
    public static Comparator<File> sComparator = new Comparator<File>() {
        @Override
        public int compare(File f1, File f2) {
            // Sort alphabetically by lower case, which is much cleaner
            return f1.getName().toLowerCase().compareTo(
                    f2.getName().toLowerCase());
        }
    };

    /**
     * File (not directories) filter.
     *
     * @author paulburke
     */
    public static FileFilter sFileFilter = new FileFilter() {
        @Override
        public boolean accept(File file) {
            final String fileName = file.getName();
            // Return files only (not directories) and skip hidden files
            return file.isFile() && !fileName.startsWith(HIDDEN_PREFIX);
        }
    };

    /**
     * Folder (directories) filter.
     *
     * @author paulburke
     */
    public static FileFilter sDirFilter = new FileFilter() {
        @Override
        public boolean accept(File file) {
            final String fileName = file.getName();
            // Return directories only and skip hidden directories
            return file.isDirectory() && !fileName.startsWith(HIDDEN_PREFIX);
        }
    };

    /**
     * Get the Intent for selecting content to be used in an Intent Chooser.
     *
     * @return The intent for opening a file with Intent.createChooser()
     * @author paulburke
     */
    public static Intent createGetContentIntent() {
        // Implicitly allow the user to select a particular kind of data
        final Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
        // The MIME data type filter
        intent.setType("*/*");
        // Only return URIs that can be opened with ContentResolver
        intent.addCategory(Intent.CATEGORY_OPENABLE);
        return intent;
    }
}
Sajid2067
quelle
1
@ K40S, heutzutage ist dieser Code aus vielen Quellen verfügbar. Ich habe zwar aus einer anderen Quelle entnommen, konnte mich aber nicht daran erinnern. Ich habe jedoch Ihre Quelle zu meiner Lösung hinzugefügt. Gestohlen ist in dieser Hinsicht ein hartes Wort.
Sajid2067
1
Ohne Gutschrift genommen, bei Verletzung der Lizenzbestimmungen (Lizenz an Code anhängen) ist Diebstahl. Ich wollte dich nicht beschämen oder so, wollte nur das richtige Wort verwenden :)
Lerk
1
Wenn Sie den eingefügten Code sehen, werden Sie feststellen, dass alle Kommentare, die sich auf den tatsächlichen Autor beziehen, nicht aus dieser Antwort entfernt werden. Ich habe es absichtlich behalten und es tut mir leid, dass ich den genauen Link nicht angegeben habe.
Sajid2067
Verwenden Sie diese Datei: drive.google.com/open?id=1u5QC5omPLnteWy_luBPZ8l5aXMPB--nA Verwenden Sie in dieser Klasse Ihren Paketnamen und die R.java-Datei.
Sajid2067
0

Antwort von @SAParkhid auf Kotlin.

class FileUtils @Inject constructor(private val context: Context) {

    private var selection: String? = null
    private var selectionArgs: Array<String>? = null

    fun getFile(uri: Uri): File? {
        val path = getPath(uri)
        return if (path != null) {
            File(path)
        } else {
            null
        }
    }

    fun getPath(uri: Uri): String? {
        // check here to KITKAT or new version
        return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            getPathForKitKatAndAbove(uri)
        } else {
            getPathBelowKitKat(uri)
        }
    }

    @SuppressLint("NewApi")
    private fun handleExternalStorage(uri: Uri): String? {
        val docId = DocumentsContract.getDocumentId(uri)
        val split = docId.split(":".toRegex()).toTypedArray()
        val fullPath = getPathFromExtSD(split)
        return if (fullPath !== "") {
            fullPath
        } else {
            null
        }
    }

    @SuppressLint("NewApi")
    private fun handleDownloads(uri: Uri): String? {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            handleDownloads23ApiAndAbove(uri)
        } else {
            handleDownloadsBelow23Api(uri)
        }
        return null
    }

    @SuppressLint("NewApi")
    private fun handleDownloadsBelow23Api(uri: Uri): String? {
        val id = DocumentsContract.getDocumentId(uri)
        if (id.startsWith("raw:")) {
            return id.replaceFirst("raw:".toRegex(), "")
        }
        var contentUri: Uri? = null
        try {
            contentUri = ContentUris.withAppendedId(
                Uri.parse("content://downloads/public_downloads"), id.toLong()
            )
        } catch (e: NumberFormatException) {
            log(e)
        }
        if (contentUri != null) {
            return getDataColumn(contentUri)
        }
        return null
    }

    @SuppressLint("NewApi")
    private fun handleDownloads23ApiAndAbove(uri: Uri): String? {
        var cursor: Cursor? = null
        try {
            cursor = context.contentResolver
                .query(uri, arrayOf(MediaStore.MediaColumns.DISPLAY_NAME), null, null, null)
            if (cursor != null && cursor.moveToFirst()) {
                val fileName = cursor.getString(0)
                val path: String =
                    Environment.getExternalStorageDirectory().toString() + "/Download/" + fileName
                if (path.isNotEmpty()) {
                    return path
                }
            }
        } finally {
            cursor?.close()
        }
        val id: String = DocumentsContract.getDocumentId(uri)
        if (id.isNotEmpty()) {
            if (id.startsWith("raw:")) {
                return id.replaceFirst("raw:".toRegex(), "")
            }
            val contentUriPrefixesToTry = arrayOf(
                "content://downloads/public_downloads",
                "content://downloads/my_downloads"
            )
            for (contentUriPrefix in contentUriPrefixesToTry) {
                return try {
                    val contentUri = ContentUris.withAppendedId(
                        Uri.parse(contentUriPrefix),
                        id.toLong()
                    )
                    getDataColumn(contentUri)
                } catch (e: NumberFormatException) {
                    //In Android 8 and Android P the id is not a number
                    uri.path.orEmpty().replaceFirst("^/document/raw:".toRegex(), "")
                        .replaceFirst("^raw:".toRegex(), "")
                }
            }
        }
        return null
    }

    @SuppressLint("NewApi")
    private fun handleMedia(uri: Uri): String? {
        val docId = DocumentsContract.getDocumentId(uri)
        val split = docId.split(":".toRegex()).toTypedArray()
        val contentUri: Uri? = when (split[0]) {
            "image" -> {
                MediaStore.Images.Media.EXTERNAL_CONTENT_URI
            }
            "video" -> {
                MediaStore.Video.Media.EXTERNAL_CONTENT_URI
            }
            "audio" -> {
                MediaStore.Audio.Media.EXTERNAL_CONTENT_URI
            }
            else -> null
        }
        selection = "_id=?"
        selectionArgs = arrayOf(split[1])
        return if (contentUri != null) {
            getDataColumn(contentUri)
        } else {
            null
        }
    }

    private fun handleContentScheme(uri: Uri): String? {
        if (isGooglePhotosUri(uri)) {
            return uri.lastPathSegment
        }
        if (isGoogleDriveUri(uri)) {
            return getDriveFilePath(uri)
        }
        return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
            copyFileToInternalStorage(uri, "userfiles")
        } else {
            getDataColumn(uri)
        }
    }

    @SuppressLint("NewApi")
    private fun getPathForKitKatAndAbove(uri: Uri): String? {
        return when {
            // ExternalStorageProvider
            isExternalStorageDocument(uri) -> handleExternalStorage(uri)
            // DownloadsProvider
            isDownloadsDocument(uri) -> handleDownloads(uri)
            // MediaProvider
            isMediaDocument(uri) -> handleMedia(uri)
            //GoogleDriveProvider
            isGoogleDriveUri(uri) -> getDriveFilePath(uri)
            //WhatsAppProvider
            isWhatsAppFile(uri) -> getFilePathForWhatsApp(uri)
            //ContentScheme
            "content".equals(uri.scheme, ignoreCase = true) -> handleContentScheme(uri)
            //FileScheme
            "file".equals(uri.scheme, ignoreCase = true) -> uri.path
            else -> null
        }
    }

    private fun getPathBelowKitKat(uri: Uri): String? {
        if (isWhatsAppFile(uri)) {
            return getFilePathForWhatsApp(uri)
        }
        if ("content".equals(uri.scheme, ignoreCase = true)) {
            val projection = arrayOf(
                MediaStore.Images.Media.DATA
            )
            var cursor: Cursor? = null
            try {
                cursor = context.contentResolver
                    .query(uri, projection, selection, selectionArgs, null)
                val columnIndex = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA)
                if (cursor.moveToFirst()) {
                    return cursor.getString(columnIndex)
                }
            } catch (e: IOException) {
                log(e)
            } finally {
                cursor?.close()
            }
        }
        return null
    }

    private fun fileExists(filePath: String): Boolean {
        val file = File(filePath)
        return file.exists()
    }

    private fun getPathFromExtSD(pathData: Array<String>): String {
        val type = pathData[0]
        val relativePath = "/" + pathData[1]
        var fullPath: String

        // on my Sony devices (4.4.4 & 5.1.1), `type` is a dynamic string
        // something like "71F8-2C0A", some kind of unique id per storage
        // don't know any API that can get the root path of that storage based on its id.
        //
        // so no "primary" type, but let the check here for other devices
        if ("primary".equals(type, ignoreCase = true)) {
            fullPath = Environment.getExternalStorageDirectory().toString() + relativePath
            if (fileExists(fullPath)) {
                return fullPath
            }
        }

        // Environment.isExternalStorageRemovable() is `true` for external and internal storage
        // so we cannot relay on it.
        //
        // instead, for each possible path, check if file exists
        // we'll start with secondary storage as this could be our (physically) removable sd card
        fullPath = System.getenv("SECONDARY_STORAGE").orEmpty() + relativePath
        if (fileExists(fullPath)) {
            return fullPath
        }
        fullPath = System.getenv("EXTERNAL_STORAGE").orEmpty() + relativePath
        return if (fileExists(fullPath)) {
            fullPath
        } else fullPath
    }

    private fun getDriveFilePath(uri: Uri): String? {
        context.contentResolver.query(
            uri, null, null, null, null
        )?.use { cursor ->
            /*
             * Get the column indexes of the data in the Cursor,
             *     * move to the first row in the Cursor, get the data,
             *     * and display it.
             * */
            val nameIndex = cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME)
            cursor.moveToFirst()
            val name = cursor.getString(nameIndex)
            val file = File(context.cacheDir, name)
            try {
                val inputStream = context.contentResolver.openInputStream(uri)!!
                val outputStream = FileOutputStream(file)
                val bytesAvailable = inputStream.available()

                val bufferSize = min(bytesAvailable, MAX_BUFFER_SIZE)
                val buffers = ByteArray(bufferSize)
                var read: Int
                while (inputStream.read(buffers).also { read = it } != -1) {
                    outputStream.write(buffers, 0, read)
                }
                inputStream.close()
                outputStream.close()
            } catch (e: IOException) {
                log(e)
            } finally {
                cursor.close()
            }
            return file.path
        }
        return null
    }

    /***
     * Used for Android Q+
     * @param uri
     * @param newDirName if you want to create a directory, you can set this variable
     * @return
     */
    private fun copyFileToInternalStorage(uri: Uri, newDirName: String): String? {
        context.contentResolver.query(
            uri, arrayOf(OpenableColumns.DISPLAY_NAME, OpenableColumns.SIZE), null, null, null
        )?.use { cursor ->
            /*
             * Get the column indexes of the data in the Cursor,
             *     * move to the first row in the Cursor, get the data,
             *     * and display it.
             * */
            val nameIndex = cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME)
            cursor.moveToFirst()
            val name = cursor.getString(nameIndex)
            val output: File = if (newDirName != "") {
                val dir = File(context.filesDir.toString() + "/" + newDirName)
                if (!dir.exists()) {
                    dir.mkdir()
                }
                File(context.filesDir.toString() + "/" + newDirName + "/" + name)
            } else {
                File(context.filesDir.toString() + "/" + name)
            }
            try {
                val inputStream = context.contentResolver.openInputStream(uri) ?: return null
                val outputStream = FileOutputStream(output)
                var read: Int
                val buffers = ByteArray(BUFFER_SIZE)
                while (inputStream.read(buffers).also { read = it } != -1) {
                    outputStream.write(buffers, 0, read)
                }
                inputStream.close()
                outputStream.close()
            } catch (e: IOException) {
                log(e)
            } finally {
                cursor.close()
            }
            return output.path
        }
        return null
    }

    private fun getFilePathForWhatsApp(uri: Uri): String? {
        return copyFileToInternalStorage(uri, "whatsapp")
    }

    private fun getDataColumn(uri: Uri): String? {
        var cursor: Cursor? = null
        val column = "_data"
        val projection = arrayOf(column)
        try {
            cursor = context.contentResolver.query(
                uri, projection,
                selection, selectionArgs, null
            )
            if (cursor != null && cursor.moveToFirst()) {
                val index = cursor.getColumnIndexOrThrow(column)
                return cursor.getString(index)
            }
        } finally {
            cursor?.close()
        }
        return null
    }

    private fun isExternalStorageDocument(uri: Uri): Boolean {
        return EXTERNAL_STORAGE_CONTENT == uri.authority
    }

    private fun isDownloadsDocument(uri: Uri): Boolean {
        return DOWNLOAD_DOCUMENT_CONTENT == uri.authority
    }

    private fun isMediaDocument(uri: Uri): Boolean {
        return MEDIA_DOCUMENT_CONTENT == uri.authority
    }

    private fun isGooglePhotosUri(uri: Uri): Boolean {
        return GOOGLE_PHOTOS_CONTENT == uri.authority
    }

    private fun isWhatsAppFile(uri: Uri): Boolean {
        return WHATS_APP_CONTENT == uri.authority
    }

    private fun isGoogleDriveUri(uri: Uri): Boolean {
        return GOOGLE_DRIVE_CONTENT == uri.authority || "com.google.android.apps.docs.storage.legacy" == uri.authority
    }

    companion object {
        private const val BUFFER_SIZE = 1024
        private const val MAX_BUFFER_SIZE = 1024 * 1024
        private const val GOOGLE_DRIVE_CONTENT = "com.google.android.apps.docs.storage"
        private const val WHATS_APP_CONTENT = "com.whatsapp.provider.media"
        private const val GOOGLE_PHOTOS_CONTENT = "com.google.android.apps.photos.content"
        private const val MEDIA_DOCUMENT_CONTENT = "com.android.providers.media.documents"
        private const val DOWNLOAD_DOCUMENT_CONTENT = "com.android.providers.downloads.documents"
        private const val EXTERNAL_STORAGE_CONTENT = "com.android.externalstorage.documents"
    }
}
A.Rost
quelle
-1

Es fiel mir schwer, dies auf Xamarin herauszufinden. Aus den obigen Vorschlägen habe ich diese Lösung gefunden.

private string getRealPathFromURI(Android.Net.Uri contentUri)
{
    string filename = "";
    string thepath = "";
    Android.Net.Uri filePathUri;
    ICursor cursor = this.ContentResolver.Query(contentUri, null, null, null, null);

    if (cursor.MoveToFirst())
    {
        int column_index = cursor.GetColumnIndex(MediaStore.Images.Media.InterfaceConsts.Data);//Instead of "MediaStore.Images.Media.DATA" can be used "_data"
        filePathUri = Android.Net.Uri.Parse(cursor.GetString(column_index));
        filename = filePathUri.LastPathSegment;
        thepath = filePathUri.Path;
    }

    return thepath;
}
Uchenna Nnodim
quelle
1
Android 7.0Column_Index ist -1beim Auswählen einer Datei mit ActionContentGetund */*geben Sie beispielsweise ein PDF ein
Pierre
-26
String uri_path = "file:///mnt/sdcard/FileName.mp3";
File f = new removeUriFromPath(uri_path));
public static String removeUriFromPath(String uri)
{
  return  uri.substring(7, uri.length());
}
Sanjeev Badoni
quelle
6
Mein Bruder, der einen Teilstring verwendet, ist keine Lösung, weil uri_path dynamisch ist!
Euphor08
4
@ Sanjeev Badoni, erwägen Sie, Ihre Antwort zu löschen, um Ihren Ruf wiederherzustellen
Mahmoud Ayman