問(wèn)題描述

點(diǎn)擊cell的時(shí)候，讓cell里面的透明度降低，松開(kāi)手指透明度恢復(fù)。
類似支付那樣

實(shí)現(xiàn)方法

重寫UIResponder的touchesBegan和touchesEnded

-(void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{

    [super touchesBegan:touches withEvent:event];
   
    [UIView animateWithDuration:0.5 animations:^{
        self.topViewImg.alpha = 0.7;
        
        self.bottomlable.alpha = 0.7;
    }];
    
  
    
}


-(void)touchesEnded:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{

      [UIView animateWithDuration:0.5 animations:^{
          self.topViewImg.alpha = 1;
    
          self.bottomlable.alpha = 1;
      }];

    
     [super touchesEnded:touches withEvent:event];
}

效果圖

效果圖

拓展

因?yàn)閠ouchesBegan和touchesEnded是uiview的父類的方法，所以所有的view都可以實(shí)現(xiàn)這種效果。
估計(jì)uibutton點(diǎn)擊閃動(dòng)效果也是這樣實(shí)現(xiàn)的