动画完成后执行的操作 [英] Perform an action after the animation has finished

问题描述

我的图像上执行的动画，我旋转180度。

然后我就插入了一个code切换到另一个视图。

但是，应用程序是在动画结束前交换了意见。

我怎么能等待动画以便事后切换视图完成？

下面是我的code：

   - （IBAction为）按钮pressed：（ID）发送者
{
    CABasicAnimation * imageRotation = [CABasicAnimation animationWithKeyPath：@transform.rotation];    imageRotation.fromValue = [NSNumber的numberWithFloat：0];
    imageRotation.toValue = [NSNumber的numberWithFloat：（（180×M_PI）/ 180）];    imageRotation.duration = 1.5;
    imageRotation.repeatCount = 1;    imageRotation.removedOnCompletion = NO;
    imageRotation.autoreverses = NO;
    imageRotation.fillMode = kCAFillModeForwards;    [_image.layer addAnimation：imageRotation forKey：@imageRotation];    //切换视图
    [个体经营performSegueWithIdentifier：@ToGalleryVCSegue发件人：个体经营];}
 

解决方案

使用的UIView的animateWithDuration：动画：完成：方法。把你给performSegueWithIdentifier电话：发件人：在完成块。例如：

  [UIView的animateWithDuration：1.5
                 动画：^ {
        //把你的动画code在这里，例如：
        CGAffineTransform变换= CGAffineTransformMakeRotation（M_PI_2）;
        self.imageView.transform =变换;
    }
                 完成：^ {
        [个体经营performSegueWithIdentifier：@ToGalleryVCSegue发件人：个体经营];
    }];
 

I'm performing an animation on an image where I rotate it 180 degrees.

Then I have inserted a code to switch to another view.

However, the app is switching views before the animation ends.

How can I wait for the animation to finish in order to switch view afterwards?

Here's my code:

- (IBAction)buttonPressed:(id)sender
{
    CABasicAnimation *imageRotation = [CABasicAnimation animationWithKeyPath:@"transform.rotation"];

    imageRotation.fromValue = [NSNumber numberWithFloat:0];
    imageRotation.toValue = [NSNumber numberWithFloat:((180*M_PI)/ 180)];

    imageRotation.duration = 1.5;
    imageRotation.repeatCount = 1;

    imageRotation.removedOnCompletion = NO;
    imageRotation.autoreverses=NO;
    imageRotation.fillMode = kCAFillModeForwards;

    [_image.layer addAnimation:imageRotation forKey:@"imageRotation"];

    // Switching Views
    [self performSegueWithIdentifier: @"ToGalleryVCSegue" sender: self];

}

解决方案

Use UIView's animateWithDuration:animations:completion: method. Put your call to performSegueWithIdentifier:sender: in the completion block. eg:

[UIView animateWithDuration:1.5
                 animations:^{
        // put your animation code here, eg:
        CGAffineTransform transform = CGAffineTransformMakeRotation(M_PI_2);
        self.imageView.transform = transform;
    }
                 completion:^{
        [self performSegueWithIdentifier: @"ToGalleryVCSegue" sender: self];
    }];

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