PermissionAspect.java

@Aspect
public class PermissionAspect {

  @Around("execution(@DangerousPermission void *(..))")
  public void beforeDangerousMethod(ProceedingJoinPoint point)
      throws Throwable {
    Activity activity = ((ActivityHolder) point.getThis()).getActivity();//getting Activity
    MethodSignature signature = (MethodSignature) point.getSignature();
    Method method = signature.getMethod();
    //Taking our required permission to check
    DangerousPermission dangerousPermission = method.getAnnotation(DangerousPermission.class);
    String requiredPermission = dangerousPermission.value();
    //And.. checking
    if (VERSION.SDK_INT >= VERSION_CODES.M) {
      if (activity.checkSelfPermission(requiredPermission) != PackageManager.PERMISSION_GRANTED) {
        activity.requestPermissions(new String[]{requiredPermission}, 1);
        return;
      }
    }
    point.proceed();
  }
}