FlipFromRight UIView動畫

Question

首先，這是我的代碼：

[_helperView addSubview:_navigationController.view];
[_helperView addSubview:itemView];

[UIView beginAnimations:@"pageFlipAnimation" context:nil];
[UIView setAnimationDuration:1.0];
[UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:_helperView cache:NO];
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:@selector(pageFlipAnimationDidStop)];
[itemView removeFromSuperview];
[UIView commitAnimations];

我的問題是沒有動畫。 如果我在_navigationController.view和itemView之前添加（我的意思是不在此方法中），則一切正常，但是當我在動畫之前添加時，它什么也不做。 我還嘗試再次調用動畫片didStopSelector中的動畫，並且也可以在其中工作。 您能幫我一下為什么在這種情況下不起作用嗎？ 有什么建議如何解決嗎？

Answer 1

你或許應該給予用戶界面以實現另外的機會itemView 。 為此，請在addSubview:itemView之后添加一行：

[self performSelector(removeAnim:) withObject:itemView afterDelay:0.01];

並將動畫塊移至某個功能

-(void)removeAnim:(UIVieW*)itemView

這應該可以解決問題。

Answer 2

將QuartzCore.framework與這些動畫一起使用。

-(void)viewSlideInFromRightToLeft:(UIView *)views
{
    CATransition *transition = nil;
    transition = [CATransition animation];
    transition.duration = 0.5;//kAnimationDuration
    transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
    transition.type = kCATransitionPush;
    transition.subtype =kCATransitionFromRight;
    transition.delegate = self;
    [views.layer addAnimation:transition forKey:nil];
}

-(void)viewSlideInFromLeftToRight:(UIView *)views
{
    CATransition *transition = nil;
    transition = [CATransition animation];
    transition.duration = 0.5;//kAnimationDuration
    transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
    transition.type = kCATransitionPush;
    transition.subtype =kCATransitionFromLeft;
    transition.delegate = self;
    [views.layer addAnimation:transition forKey:nil];
}

-(void)viewSlideInFromTopToBottom:(UIView *)views
{
    CATransition *transition = nil;
    transition = [CATransition animation];
    transition.duration = 0.5;//kAnimationDuration
    transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
    transition.type = kCATransitionPush;
    transition.subtype =kCATransitionFromBottom ;
    transition.delegate = self;
    [views.layer addAnimation:transition forKey:nil];
}

-(void)viewSlideInFromBottomToTop:(UIView *)views
{
    CATransition *transition = nil;
    transition = [CATransition animation];
    transition.duration = 0.5;//kAnimationDuration
    transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
    transition.type = kCATransitionPush;
    transition.subtype =kCATransitionFromTop ;
    transition.delegate = self;
    [views.layer addAnimation:transition forKey:nil];
}

對於AnimationType ，可以使用以下選項：-> kCATransitionMoveIn ， kCATransitionPush ， kCATransitionReveal ， kCATransitionFade

對於AnimationSubType ，可以使用以下選項：-> kCATransitionFromLeft ， kCATransitionFromRight ， kCATransitionFromTop ， kCATransitionFromBottom