Ask Multiple Permissions Android

Question

I\'m modifying an existing Face Tracker app Android\'s Facial Recognition sample projects. I\'m having an issue with requesting multiple permanent permissions. The method be

Answer 1

This is the simplest solution:

Add this code in your MainActivity's onCreate method

//Requesting permissions
        int PERMISSION_ALL = 1;
        String[] PERMISSIONS = {
                android.Manifest.permission.READ_CONTACTS,
                android.Manifest.permission.RECORD_AUDIO,
                android.Manifest.permission.CALL_PHONE,
        };

        if (!hasPermissions(this, PERMISSIONS)) {
            ActivityCompat.requestPermissions(this, PERMISSIONS, PERMISSION_ALL);
        }

Now, add this function in your main activity class

public static boolean hasPermissions(Context context, String... permissions) {
    if (context != null && permissions != null) {
        for (String permission : permissions) {
            if (ActivityCompat.checkSelfPermission(context, permission) != PackageManager.PERMISSION_GRANTED) {
                return false;
            }
        }
    }
    return true;
}

You can add ass many permissions you need to ask at the application startup.