ios - 如何在 ios 中隐藏 ImageView ？

Question

我有 ImageView ，如果单击按钮说话的汤姆猫将播放 animationRepeatCount:2，在此之后，我想隐藏 ImageView 。如何隐藏该 ImageView ？

    - (IBAction)catBlinkButton:(UIButton *)sender {
    self.imageView.hidden = NO;
    self.imageView.animationDuration = 2;
    self.imageView.animationRepeatCount = 2;
    self.imageView.animationImages = [[NSArray alloc]initWithObjects:
                                      [UIImage imageNamed:@"cat_blink0000.png"],
                                      [UIImage imageNamed:@"cat_blink0001.png"],
                                      [UIImage imageNamed:@"cat_blink0002.png"],
                                      nil];

    [self.imageView startAnimating];

}

这是我的代码...

Answer 1

您可以像这样简单地使用 CATransaction:

self.imageView.hidden = NO;

[CATransaction begin];

[CATransaction setCompletionBlock:^{

    self.imageView.hidden = YES;

}];

self.imageView.animationDuration = 2;
self.imageView.animationRepeatCount = 2;
self.imageView.animationImages = [[NSArray alloc]initWithObjects:
                                  [UIImage imageNamed:@"cat_blink0000.png"],
                                  [UIImage imageNamed:@"cat_blink0001.png"],
                                  [UIImage imageNamed:@"cat_blink0002.png"],
                                  nil];

[self.imageView startAnimating];

[CATransaction commit];

CATransaction 将动态等待动画完成...