内部存储

1、总大小

public static long getInternalStorageSize(Context context) {File filesDir = context.getFilesDir();return filesDir.getTotalSpace();
}

2、可用空间大小

public static long getFreeSpace(Context context) {File filesDir = context.getFilesDir();return filesDir.getFreeSpace();
}

扩展TF卡

1、总大小

public static long getExternalStorageSize(Context context) {StorageManager storageManager = context.getSystemService(StorageManager.class);for (StorageVolume volume : storageManager.getStorageVolumes()) {if (volume.isRemovable()) {if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.R) {File directory = volume.getDirectory();LogUtils.i("fileUtils", "directory = " + directory.getAbsolutePath());LogUtils.i("fileUtils", "directory = " + directory.getTotalSpace());return directory.getTotalSpace();}} else {if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.R) {File directory = volume.getDirectory();LogUtils.i("fileUtils", "false directory = " + directory.getAbsolutePath());LogUtils.i("fileUtils", "false directory = " + directory.getTotalSpace());}}}return 0;
}

2、可用空间大小

public static long getExternalStorageFreeSize(Context context) {StorageManager storageManager = context.getSystemService(StorageManager.class);for (StorageVolume volume : storageManager.getStorageVolumes()) {if (volume.isRemovable()) {if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.R) {File directory = volume.getDirectory();LogUtils.i("fileUtils", "directory = " + directory.getAbsolutePath());LogUtils.i("fileUtils", "free = " + directory.getFreeSpace());return directory.getFreeSpace();}} else {if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.R) {File directory = volume.getDirectory();LogUtils.i("fileUtils", "false directory = " + directory.getAbsolutePath());LogUtils.i("fileUtils", "false directory = " + directory.getTotalSpace());}}}return 0;
}

单位转换

public static String storageSizeConversion(long size) {DecimalFormat df = new DecimalFormat("#.00");String fileSizeString = "";if (size < 1024) {fileSizeString = df.format((double) size) + "B";} else if (size < 1048576) {fileSizeString = df.format((double) size / 1024) + "K";} else if (size < 1073741824) {fileSizeString = df.format((double) size / 1048576) + "M";} else {fileSizeString = df.format((double) size / 1073741824) + "G";}return fileSizeString;
}