Android запрос разрешений простейший пример permissions

Кусок кода из видео: void requestPermissions() { String[] permissions = { Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE }; List permissionsToRequest = new ArrayList﹤﹥(); // Filter out the permissions that are not yet granted for (String permission : permissions) if (checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) permissionsToRequest.add(permission); // If there are permissions that need to be requested, ask the user for them if (!permissionsToRequest.isEmpty()) requestPermissions(permissionsToRequest.toArray(new String[0]), 1); }