Android prüfen programmgesteuert freien Speicherplatz
public static boolean externalMemoryAvailable() {
return android.os.Environment.getExternalStorageState().equals(
android.os.Environment.MEDIA_MOUNTED);
}
public static String getAvailableInternalMemorySize() {
File path = Environment.getDataDirectory();
StatFs stat = new StatFs(path.getPath());
long blockSize = stat.getBlockSizeLong();
long availableBlocks = stat.getAvailableBlocksLong();
return formatSize(availableBlocks * blockSize);
}
public static String getTotalInternalMemorySize() {
File path = Environment.getDataDirectory();
StatFs stat = new StatFs(path.getPath());
long blockSize = stat.getBlockSizeLong();
long totalBlocks = stat.getBlockCountLong();
return formatSize(totalBlocks * blockSize);
}
public static String getAvailableExternalMemorySize() {
if (externalMemoryAvailable()) {
File path = Environment.getExternalStorageDirectory();
StatFs stat = new StatFs(path.getPath());
long blockSize = stat.getBlockSizeLong();
long availableBlocks = stat.getAvailableBlocksLong();
return formatSize(availableBlocks * blockSize);
} else {
return ERROR;
}
}
public static String getTotalExternalMemorySize() {
if (externalMemoryAvailable()) {
File path = Environment.getExternalStorageDirectory();
StatFs stat = new StatFs(path.getPath());
long blockSize = stat.getBlockSizeLong();
long totalBlocks = stat.getBlockCountLong();
return formatSize(totalBlocks * blockSize);
} else {
return ERROR;
}
}
public static String formatSize(long size) {
String suffix = null;
if (size >= 1024) {
suffix = "KB";
size /= 1024;
if (size >= 1024) {
suffix = "MB";
size /= 1024;
}
}
StringBuilder resultBuffer = new StringBuilder(Long.toString(size));
int commaOffset = resultBuffer.length() - 3;
while (commaOffset > 0) {
resultBuffer.insert(commaOffset, ',');
commaOffset -= 3;
}
if (suffix != null) resultBuffer.append(suffix);
return resultBuffer.toString();
}
Grotesque Goose