[英]UIView does not move a subview when a animation block is after it
I have this UIView
class. 我有这个
UIView
类。 It has 4 Views in it: 它具有4个视图:
self.view
The view of the class itself. self.view
类本身的视图。 UIImageView
of a button. UIImageView
。 The self.view
has a frame of (30, 380, 68, 66);
self.view
的框架为(30, 380, 68, 66);
self.view
(30, 380, 68, 66);
I want to be able to tab the button and then it scales up accompanied by a UIViewAnimationTransitionFlipFromRigh
t. 我希望能够
UIViewAnimationTransitionFlipFromRigh
该按钮,然后将其放大并伴随UIViewAnimationTransitionFlipFromRigh
t。 Before the animation starts I set the frame of the class to be the whole screen. 在动画开始之前,我将类的框架设置为整个屏幕。 (I have to do this for the class to still respond to touches) Thats where my button moves to the top left.
(我必须这样做,以便班级仍然要响应触摸),这就是我的按钮移至左上方的位置。 I'm doing a
twitterButtonView.center = somePoint
and nothing happens to the button view: (I removed unimportant parts) 我正在做一个
twitterButtonView.center = somePoint
并且按钮视图没有任何反应:(我删除了不重要的部分)
// I save the center of the class. Its where the the class is in the window.
oldCenter = self.center;
self.frame = CGRectMake(0, 0, 320, 480);
// Set the button to the position where the class was.This is x=63 y=413 in the debugger
// If I return; after this everything is fine and the class has the frame set to the whole
// screen and the button is at 62,413
twitterButtonView.center = oldCenter;
[UIView beginAnimations:@"twitterButtonFlip" context:nil];
[UIView setAnimationDuration:1.0];
twitterButtonView.center = CGPointMake(160,220);
[UIView commitAnimations];
The button moves to the center. 按钮移到中间。 But the animation starting point is 34,33.
但是动画的起点是34,33。 Why is that?
这是为什么?
because the self.view center is 34, 33. 因为self.view中心是34、33。
Instead try changing the origin of the frame (x or y). 而是尝试更改帧的原点(x或y)。
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