我正在动画UIView(alpha)属性,我想在动画完成后我可以从超级视图中删除它.
-(void) hideOverlayView
{
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:1.0];
[topView setAlpha:0];
[UIView commitAnimations];
}
一种选择是使用带延迟选项的performSelector,但是有更紧凑的方法吗？
更新1：
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:1.0];
[UIView setAnimationDelegate:topView];
[UIView setAnimationDidStopSelector:@selector(removeFromSuperview)];
[topView setAlpha:0];
[UIView commitAnimations];
解决方法
直接从
UIView docs
[UIView animateWithDuration:0.2
animations:^{view.alpha = 0.0;}
completion:^(BOOL finished){ [view removeFromSuperview]; }];
或者在您的具体情况中：
[UIView animateWithDuration:1.0
animations:^{topView.alpha:0.0;}
completion:^(BOOL finished){ [topView removeFromSuperview]; }];
