Animtaion

AppDelegate UIViewController Transition Animation

UIViewController *nextViewController = [[UIViewController alloc] init]; UIView *screenShot = [self.window snapshotViewAfterScreenUpdates:YES]; [nextViewController.view addSubview:screenShot]; self.window.rootViewController = viewController; [UIView animateWithDuration:0.5 animations:^{ screenShot.layer.opacity = 0.0; } completion:^(BOOL finished) { [screenShot removeFromSuperview]; }]; for uivie..