No such file or directory in Android 10 (api 29)

Question

I am working on a photo editor app in which after editing my picture I save it into my local storage. It is working fine till android 9 but not on android 10. It shows exception of "No such file or directory found" in Android 10. After some research I found that getExternalFilesDir() is deprecated in android Q+. But I cannot find any proper way to do it in android 10. So please if anyone can provide a tutorial it would be really helpful.

I've added and granted uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> in case of it was the issue, and it didn't solve anything.

This is my try (Used ParcelFileDescriptor):

private void fileAccessForAndroidQ(Uri fileUri){
    try {
        ParcelFileDescriptor parcelFileDescriptor = this.getContentResolver().openFileDescriptor(fileUri, "r", null);
        InputStream inputStream = new FileInputStream(parcelFileDescriptor.getFileDescriptor());
        Cursor returnCursor =
                getContentResolver().query(fileUri, null, null, null, null);
        int nameIndex = returnCursor.getColumnIndex(OpenableColumns.DISPLAY_NAME);
        returnCursor.moveToFirst();
        fileName = returnCursor.getString(nameIndex);

        file = new File(this.getFilesDir(), fileName);

        OutputStream outputStream = new FileOutputStream(file);
        IOUtils.copyStream(inputStream, outputStream);

    }catch (Exception e){
        Toast.makeText(this, ""+e.getMessage(), Toast.LENGTH_SHORT).show();
    }
}

Any kind of help would be appreciated.

Conformist

You need to use MediaStore API for Android 10. After Android 10, you don't have any direct access to Storage. Check this for more information: developer.android.com/training/data-storage – Cordovan

Answer 1

If you target Android 10 (API level 29) or higher, set the value of requestLegacyExternalStorage to true in your app's manifest file:

Documentation

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.appname"
    android:installLocation="auto">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:requestLegacyExternalStorage="true"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme.NoActionBar">

        <activity android:name=".activities.MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>


    </application>

</manifest>

Shipyard

While this is a good solution for now, future Android versions might not support getExternalFilesDir() either. Currently also trying to solve this issue, a good starting point is here: #56469039. AND #57116835 – Reive

Answer 2

Here is the best I could find: https://developer.android.com/training/data-storage/app-specific#external

Basically, you now use app-specific directories for your files. For example:

@Nullable
File getAppSpecificAlbumStorageDir(Context context, String albumName) {
    // Get the pictures directory that's inside the app-specific directory on
    // external storage.
    File file = new File(context.getExternalFilesDir(
            Environment.DIRECTORY_PICTURES), albumName);
    if (file == null || !file.mkdirs()) {
        Log.e(LOG_TAG, "Directory not created");
    }
    return file;
}

Reive

Answer 3

I found this working for me. i am trying to list all file on ListView

if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
        ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 0);

    } else {


        File s = Environment.getExternalStorageDirectory();
        Log.d("Path ",Arrays.toString(s.listFiles()));
        File[] s1 = new File[s.listFiles().length];

        for(int i=0;i<s.listFiles().length;i++){
            s1[i]= new File(s.listFiles()[i].toString().replace("/storage/emulated/0/", ""));
        }



        ArrayAdapter<File> adapter = new ArrayAdapter<File>(this,R.layout.support_simple_spinner_dropdown_item,s1);
        l1.setAdapter(adapter);

     }

Nauru