[新手请教] 如何让 UIView 点击一下 backgroundColor 变深然后再变回来（类似按钮点击后的交互效果）

- (void )loadView { self.view = [UIView new]; UIView *shareView = [UIView new]; [self.view addSubview:shareView]; shareView.backgroundColor = [UIColor colorWithRGBA:0xEEEEEEFF]; shareView.userInteractionEnabled = YES; UITapGestureRecognizer *gestureForShare = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector (shareViewClicked:)]; gestureForShare.numberOfTapsRequired = 1; [shareView addGestureRecognizer:gestureForShare]; } - (void )shareViewClicked:(UITapGestureRecognizer *)gestureRecognizer { gestureRecognizer.view.backgroundColor = [UIColor colorWithRGBA:0xDDDDDDFF]; // 背景变暗持续 0.2s 后变回来 dispatch_after (dispatch_time (DISPATCH_TIME_NOW, (int64_t )(0.2 * NSEC_PER_SEC )), dispatch_get_main_queue (), ^{ gestureRecognizer.view.backgroundColor = [UIColor colorWithRGBA:0xEEEEEEFF]; }); }