Android 6.0 multiple permissions

Easily handle multiple permissions in Android Marshmallow (API 23) by effectively utilizing ActivityCompat.requestPermissions. Create an array of permissions, verify each one using ContextCompat.checkSelfPermission, and request those which are not yet granted. In onRequestPermissionsResult, confirm that all the required permissions have been granted. Here is a crisp Java example for easy reference:

// A random constant for making conversations with Android more fun!
public static final int REQUEST_CODE = 420; 

public void checkAndRequestPermissions() {
    String[] permissionsNeeded = {
        Manifest.permission.READ_EXTERNAL_STORAGE,
        Manifest.permission.WRITE_EXTERNAL_STORAGE,
        Manifest.permission.CAMERA //Say cheese!
    };

    List<String> permissionsToRequest = new ArrayList<>();
    for (String permission : permissionsNeeded) {
        // Inquiring if our app can party with these permissions
        if (ContextCompat.checkSelfPermission(this, permission) != PackageManager.PERMISSION_GRANTED) {
            permissionsToRequest.add(permission);
        }
    }

    if (!permissionsToRequest.isEmpty()) {
        ActivityCompat.requestPermissions(this, 
            permissionsToRequest.toArray(new String[0]), 
            REQUEST_CODE);
    }
}

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
    if (requestCode == REQUEST_CODE) {
        if (allPermissionsGranted(grantResults)) {
            // Door's open, party time!
        } else {
            // Oops! One or more permissions opted for social distancing 
        }
    }
}

private boolean allPermissionsGranted(int[] grantResults) {
    // Checking if all permissions are in party mood
    for (int grantResult : grantResults) {
        if (grantResult != PackageManager.PERMISSION_GRANTED) {
            return false;
        }
    }
    return true;
}


Use this code to streamline permission requests, REQUEST_CODE can be adapted to your unique identifier to manage permissions effectively.