Question

我使用此代码在2 UIView之间进行更改：

UIViewAnimationOptions animationType = UIViewAnimationOptionTransitionFlipFromLeft;

[UIView transitionFromView:self.playlistTableView toView:self.playerView duration:0.5 options:animationType completion:^(BOOL finished){
     [self.containerView sendSubviewToBack:self.upperView];
     [self.containerView sendSubviewToBack:self.playerView];

     self.isPlaylistVisible = !self.isPlaylistVisible;
     isControlsHidden = NO;
}];

我注意到一种奇怪的行为，当我翻转self.playerView失去20px的高度时，一秒后它会增加回到正常的帧尺寸。

我尝试将animationType更改为UIViewAnimationOptionLayoutSubviews，现在当我在视图之间切换时，不会发生此行为。知道可能是什么问题吗？

Answer 1

请尝试此代码。

        [self.upperView setHidden:YES];
        [self.playerView setHidden:NO];
        [UIView beginAnimations:nil context:NULL];
        [UIView setAnimationDuration:1.0];
        [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromLeft forView:containerView cache:YES];
        [UIView setAnimationDuration:1.0];
        [UIView commitAnimations];
        [containerView addSubview:self.playerView];

获得反向案件

    [self.upperView setHidden:NO];
    [self.playerView setHidden:YES];
    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationDuration:1.0];
    [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromLeft forView:containerView cache:YES];
    [UIView setAnimationDuration:1.0];
    [UIView commitAnimations];
    [containerView addSubview:self.upperView];

UIView transitionFromView更改视图高度

1 个答案: