Question

我正在使用一些简单的UIAnimation属性来显示和隐藏UIView。这段代码似乎第一次完美运行。但之后没有看到动画效果。在这段代码中有什么我做错了。我在这里发布我的代码..请纠正我，如果我的代码不正确，请建议我一个正确的方法。谢谢。

-(IBAction)animateSingleTap:(UIButton*)sender{
NSLog(@"trying to animate singletap");

    if(singleTapViewIsShowing==NO){

    [searchController hideSelf];
    [singleTapView sendSubviewToBack:hideSingleTapButton ];
    hideSingleTapButton.frame=CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height);
    [UIView beginAnimations:@"single tap animation" context:nil];
    [UIView setAnimationDuration:0.5];
    [UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
    [UIView setAnimationTransition:UIViewAnimationCurveEaseInOut forView:singleTapView cache:YES];
    [self.view addSubview:singleTapView];
    hideSingleTapButton.frame=CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height);
    [self.view bringSubviewToFront:singleTapView];
    optionsButton.selected=YES;
    singleTapViewIsShowing=YES;
    singleTapView.frame=CGRectMake(sender.frame.origin.x-95, sender.frame.origin.y+30, singleTapView.frame.size.width, singleTapView.frame.size.height);

    [UIView commitAnimations];

}

else {

    [UIView beginAnimations:@"single tap animation" context:nil];
    [UIView setAnimationDuration:0.5];
    [UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
    [UIView setAnimationTransition:UIViewAnimationCurveEaseInOut forView:singleTapView cache:YES];
    [singleTapView removeFromSuperview];
    optionsButton.selected=NO;
    [UIView commitAnimations];
    singleTapViewIsShowing=NO;

}

}

Answer 1

你说动画第一次运行但后来没有运行。您是否将代码中的sigleTapViewIsShowing设置为NO？你不是动画会第一次触发并执行...

singleTapViewIsShowing=YES;

这将停止任何动画运行，直到您在其他地方重置此标志。你呢？

UIAnimation似乎无法有效运作

1 个答案: