Android 11 write storage permission problem solution | How to add storage write permission in Android 11 ?

How to add storage write permission in Android 11 ? Android 11 write storage permission problem solution -

In this article you will get solution of storage write permission in Android 11 .

Follow These Steps To Add Write Permission

Step 1 - In the android manifest add these permissions

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>

<uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE"/>

 Step 2 -  Create two method in .java file 

1. first method -  showPermissionDialog()

2. second method - checkPermission()

Write codes in these methods .

for show permission dialog

private void showPermissionDialog() {
    if (SDK_INT >= Build.VERSION_CODES.R) {

        try {
            Intent intent = new Intent(Settings.ACTION_MANAGE_ALL_FILES_ACCESS_PERMISSION);
            intent.addCategory("android.intent.category.DEFAULT");
            intent.setData(Uri.parse(String.format("package:%s", new Object[]{getApplicationContext().getPackageName()})));
            startActivityForResult(intent, 2000);
        } catch (Exception e) {
            Intent intent = new Intent(Settings.ACTION_MANAGE_ALL_FILES_ACCESS_PERMISSION);
            startActivityForResult(intent, 2000);

        }

    } else
        ActivityCompat.requestPermissions(MainActivity.this,
                new String[]{WRITE_EXTERNAL_STORAGE, READ_EXTERNAL_STORAGE}, 333);
}

for check permission

private boolean checkPermission() {
    if (SDK_INT >= Build.VERSION_CODES.R) {
        return Environment.isExternalStorageManager();
    } else {
        int write = ContextCompat.checkSelfPermission(getApplicationContext(),
                WRITE_EXTERNAL_STORAGE);
        int read = ContextCompat.checkSelfPermission(getApplicationContext(),
                READ_EXTERNAL_STORAGE);

        return write == PackageManager.PERMISSION_GRANTED &&
                read == PackageManager.PERMISSION_GRANTED;
    }
}

Step 3 - Override two methods first - onRequestPermissionsResult() 

                   second - onActivityResult()

and write codes in these methods 

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {

    super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    if (requestCode == 333) {
        if (grantResults.length > 0) {
            boolean write = grantResults[0] == PackageManager.PERMISSION_GRANTED;
            boolean read = grantResults[1] == PackageManager.PERMISSION_GRANTED;

            if (read && write){

            }else {

            }
        }
    }
}

@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable  Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == 2000) {
        if (SDK_INT >= Build.VERSION_CODES.R) {
            if (Environment.isExternalStorageManager()) {

            } else {

            }
        }
    }
}

Step 4 - call all methods in OnCreate() Method

if (checkPermission()) {
    saveImage();
} else {
    showPermissionDialog();
}