/**
* Handle the result of a permission request, should be called from the calling Activity's {@link
* android.support.v4.app.ActivityCompat.OnRequestPermissionsResultCallback#onRequestPermissionsResult(int,
* String[], int[])} method.
*
* <p>If any permissions were granted or denied, the Activity will receive the appropriate
* callbacks through {@link PermissionCallbacks} and methods annotated with {@link
* AfterPermissionGranted} will be run if appropriate.
*
* @param requestCode requestCode argument to permission result callback.
* @param permissions permissions argument to permission result callback.
* @param grantResults grantResults argument to permission result callback.
* @param activity the calling Activity.
* @throws IllegalArgumentException if the calling Activity does not implement {@link
* PermissionCallbacks}.
*/
public static void onRequestPermissionsResult(
int requestCode, String[] permissions, int[] grantResults, Activity activity) {
// Make sure Activity implements callbacks
if (!(activity instanceof PermissionCallbacks)) {
throw new IllegalArgumentException("Activity must implement PermissionCallbacks.");
}
PermissionCallbacks callbacks = (PermissionCallbacks) activity;
// Make a collection of granted and denied permissions from the request.
ArrayList<String> granted = new ArrayList<>();
ArrayList<String> denied = new ArrayList<>();
for (int i = 0; i < permissions.length; i++) {
String perm = permissions[i];
if (grantResults[i] == PackageManager.PERMISSION_GRANTED) {
granted.add(perm);
} else {
denied.add(perm);
}
}
// Report granted permissions, if any.
if (!granted.isEmpty()) {
// Notify callbacks
callbacks.onPermissionsGranted(granted);
}
// Report denied permissions, if any.
if (!denied.isEmpty()) {
callbacks.onPermissionsDenied(denied);
}
// If 100% successful, call annotated methods
if (!granted.isEmpty() && denied.isEmpty()) {
runAnnotatedMethods(activity, requestCode);
}
}
