在UIView动画之间添加延迟

Question

我在UIView的touchesBegan方法内部有一些操作和动画，这些操作和动画在我的视图中被分类并追加为类。 我需要动画之间的一些延迟。

代码：

- (void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event 
{ 
    // Add delay to imitate the hold for touch 1 second and if true continue 
    // else cancel everything 

    [self animateViewSize]; // Here animates the view frame 

    // Add delay until sizing animation ends..... 

    [self animateViewFlip]; // Here animates the view flip y axis 

    [[NSNotificationCenter defaultCenter] postNotificationName:@"A Notification" object:self]; 
    // Notify the superview Controller that touch happened and do some operations with animations too... 

    // Some variables appending values for the UIView location when it touched 
} 

- (void) animateCardSize 
{ 
    // Animate using UIView animation 
} 
- (void) animateFlipView 
{ 
    // Animate flip using CABasicAnimation 
} 

这是基本的想法.....

谢谢。

Answer 1

你也可以在你的方法

[self performSelector:@selector(animateCardSize) withObject:nil afterDelay:(2.0f)]; 
//2.0 and animateCardSize as examples 

Answer 2

您可以使用基于块的UIView动画这样做：

[UIView animateWithDuration:0.4 animations:^{ 
    //Your first anim here 
} completion:^(BOOL finished){ 
    //Your second anim here 
}];