随机我的应用程序根本不会动画。我的应用程序有一个声音栏,每0.1秒更新一次动画。通常,当我启动应用程序时,动画将会非常漂亮地运行,但通常在我转换到另一个视图控制器(通过setViewControllers
)后,随机点会突然停止动画。这不只是这个动画,而是我的应用程序中的所有动画,不包括setViewControllers
。有时UIView animateWithDuration立即发生
这里是我的代码,我叫setViewControllers
:
- (void)goToController:(GeneralViewController *)vc animate:(BOOL)animated sub:(BOOL)sub{
if(animated){
AppDelegate *delegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
NSMutableArray *viewController = [NSMutableArray arrayWithArray:[delegate.navController viewControllers]];
if(viewController.count > 0){
viewController[0] = vc;
}else{
[viewController addObject:vc];
}
CATransition* transition = [CATransition animation];
transition.duration = 0.2;
transition.type = kCATransitionPush;
if(sub)
transition.subtype = kCATransitionFromRight;
else
transition.subtype = kCATransitionFromLeft;
[delegate.navController.view.layer addAnimation:transition forKey:kCATransition];
[delegate.navController setViewControllers:viewController animated:FALSE];
self.colorStyle = MusicPlusColorStyleLight;
}else{
AppDelegate *delegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
NSMutableArray *viewController = [NSMutableArray arrayWithArray:[delegate.navController viewControllers]];
if(viewController.count > 0){
viewController[0] = vc;
}else{
[viewController addObject:vc];
}
[delegate.navController.view.layer removeAnimationForKey:kCATransition];
[delegate.navController setViewControllers:viewController animated:FALSE];
}
}
下面是我用动画的声音吧的代码:
[UIView animateWithDuration:0.1 delay:0.0 options:UIViewAnimationCurveLinear | UIViewAnimationOptionBeginFromCurrentState
animations:^{
meterViewColor.frame = CGRectMake(0, (meterView.frameSizeHeight - (level*meterView.frameSizeHeight)), meterView.frameSizeWidth, (level*meterView.frameSizeHeight));
}
completion:nil];
我已经检查和代码是在主运行线。 CPU平均约为10%,内存为25 MB。所以我对于它为什么有时会停止工作感到非常困惑。有没有其他人经历过这个?
更新:对不起,但我发布的答案是不正确的。它仍然没有工作。我已删除我的答案和波纹管连接它:
当创建我加入了动画:
[transition setDelegate:self];
- (void)animationDidStop:(CAAnimation *)theAnimation finished:(BOOL)flag{
AppDelegate *delegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
[delegate.navController.view removeTransition];
}
- (void) removeTransition {
if (!CGAffineTransformIsIdentity(self.transform)) {
self.transform = CGAffineTransformIdentity;
}
}
是你从故事板或笔尖加载任何视图控制器? – Milo 2014-09-02 00:33:52
@Milo没有一切都是基于代码的 – kezi 2014-09-02 00:42:45
如果设置的框架或其他代码点击错误,那么动画立即完成。您需要注销并确保所有帧值都符合您的预期。如果您在完成时退出'完成',我会打赌它是'不'。在框架代码中可能有些不好的数学。 – 2014-09-02 01:30:11