一个处理程序重复的UIView animateWithDuration

一个处理程序重复的UIView animateWithDuration？

我的UIView animateWithDuration的重复我的观点动画。我怎样才可以有一个处理程序，可以在以后停止这个动画？例如，重复的动画开始的，我需要从以后停止
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1. 你可以做这样的假设你已经创建了一个取消的财产。作为块的startAnimation调用记录需要被包裹在一个异步调用，以避免堆栈溢出.a定要与任何类类型你确实有更换“身份证”。

- (void)startAnimation {
[UIView animateWithDuration:1.0
delay:0.0
options:UIViewAnimationOptionCurveLinear | UIViewAnimationOptionAllowUserInteraction
animations:^(void) {
//animate
}
completion:^(BOOL finished) {
if(!self.canceled) {
__weak id weakSelf = self;
[[NSOperationQueue mainQueue] addOperationWithBlock:^{
[weakSelf startAnimation];
}];
}
}
];
}

2. 动画的目的是要反复进行动画图象的反弹。当没有担心手动停止它，那么你只需要设置三个属性

(UIViewAnimationOptionCurveEaseIn | UIViewAnimationOptionAutoreverse | UIViewAnimationOptionRepeat)

和用于移动图像动画块代码-

self.image.center = CGPointMake(self.image.center.x, self.image.center.y+25);

下面是动画的完整的代码：

[UIView animateWithDuration:0.5 delay:0 options:( UIViewAnimationOptionCurveEaseIn |
UIViewAnimationOptionAutoreverse | UIViewAnimationOptionRepeat |
UIViewAnimationOptionAllowUserInteraction) animations:^{self.image.center =
CGPointMake(self.image.center.x, self.image.center.y+25);} completion:nil];

就是这样。但是如果你需要一个手动控制，然后额外的代码是必需的。首先，根据jaminguy，你需要有一个布尔属性指示回路/停止（self.playAnimationForImage）的动画，并用干净的动画代码 CodeGo.net，会从其他地方调用。这里是

-(void)animateImageBounce{
[UIView animateWithDuration:0.5 delay:0 options:(
UIViewAnimationOptionCurveEaseIn | UIViewAnimationOptionAutoreverse |
UIViewAnimationOptionAllowUserInteraction) animations:^{self.image.center =
CGPointMake(self.image.center.x, self.image.center.y+25);} completion:^(BOOL finished){if
(finished && self.playAnimationForImage){
self.image.center = CGPointMake(self.image.center.x, self.image.center.y-25);
[self animateImageBounce];
}}];

这里是从动画呼叫开始

-(void)someMethod{
...
self.playAnimationForFingers = YES;
[self animateImageBounce];

} 我想说明的一点是，在手动控制，需要重新设置图像的center.y右后方之前，未来的递归调用是
3. 事实上，在递归调用的解决方案并没有制定出动画开始古怪的行为：每隔2-3 animatation重复周期我得到动画rest。项目的优先部分反弹后（移动项下）的第二部分（动起来）的执行几乎瞬间。我的事情是必须做的递归调用。 因此，我认为。该解决方案将是启动动画与自动翻转并重复选择和，块，以检查是否有标志（

self.playAnimationForFingers

）表示，以停止动画。

-(void)animateFingersForLevelCompleteScreen{
//fix: reset the place of bouncing fingers (starting place).
//Otherwise the fingers will slowly move to the bottom at every level.
//This resetting is not working when placed inside UIView
//animate complete event block
self.image.center = CGPointMake(10 + self.image.frame.size.width/2,
95 + self.image.frame.size.height/2);
[UIView animateWithDuration:0.5 delay:0
options:(UIViewAnimationOptionCurveEaseIn |
UIViewAnimationOptionAutoreverse |
UIViewAnimationOptionRepeat |
UIViewAnimationOptionAllowUserInteraction)
animations:^{
self.image.center = CGPointMake(self.image.center.x,
self.image.center.y+25);
}
completion:^(BOOL finished){
/*finished not approapriate: finished will not be TRUE if animation
was interrupted. It is very likely to happen because animation repeats && */
if (!self.playAnimationForFingers){
[UIView setAnimationRepeatAutoreverses:NO];
}
}];
}

4. u能CABasicAnimation代替。

CABasicAnimation *appDeleteShakeAnimation = [CABasicAnimation animationWithKeyPath:@"transform.rotation"];
appDeleteShakeAnimation.autoreverses = YES;
appDeleteShakeAnimation.repeatDuration = HUGE_VALF;
appDeleteShakeAnimation.duration = 0.2;
appDeleteShakeAnimation.fromValue = [NSNumber numberWithFloat:-degreeToRadian(5)];
appDeleteShakeAnimation.toValue=[NSNumber numberWithFloat:degreeToRadian(5)];
[self.layer addAnimation:appDeleteShakeAnimation forKey:@"appDeleteShakeAnimation"];

然后当u想停止它，你可以调用

[self.layer removeAnimationForKey:@"appDeleteShakeAnimation"];