Understanding Android Runtime Permissions: How to Make Them Work for You

A Guide to Runtime Permissions in Android Apps'. This comprehensive guide covers everything you need to know about managing permissions in Android, from requesting permissions at runtime to best practices for handling permission requests. With this guide, you'll be able to easily navigate the complex world of Android permissions and create apps that users love."

** Demonstrate**

To demonstrate how Android runtime permissions work, we will create a simple app that requires access to the device’s camera.

First, we will define the required permission in our app’s manifest file:

Next, we will check if the app has permission to use the camera in our app’s code:

if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) { // Request permission if it hasn't been granted }

If the app does not have permission to use the camera, we will request permission from the user:

ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CAMERA}, MY_PERMISSIONS_REQUEST_CAMERA);

When the user responds to the permission request, the app will receive a callback with the user’s response:

@Override public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) { if (requestCode == MY_PERMISSIONS_REQUEST_CAMERA) { // Check if the permission has been granted if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) { // Permission has been granted, open the camera } else { // Permission denied, show a message } } }

At this point, the user has granted or denied the app permission to use the camera. If the permission is granted, the app can open the camera, otherwise the app must inform the user that the permission was denied.

Click To Visit Full Article originally published on:-04/01/2023