[英]Animating a UIView To A CGPoint
我想知道如何将UIView动画化为特定的CGPoint。 以下是到目前为止我所拥有的(在当前状态下不起作用):
#define MOVE_ANIMATION_DURATION_SECONDS 2
NSValue *pointValue = [[NSValue valueWithCGPoint:point] retain];
[UIView beginAnimations:nil context:pointValue];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
[UIView setAnimationDuration:MOVE_ANIMATION_DURATION_SECONDS];
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:@selector(animationDidStop:finished:context:)];
[UIView commitAnimations];
在开始之后但在提交之前,请更改UI视图上的值。
尝试:
#define MOVE_ANIMATION_DURATION_SECONDS 2
[UIView beginAnimations:nil context:pointValue];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
[UIView setAnimationDuration:MOVE_ANIMATION_DURATION_SECONDS];
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:@selector(animationDidStop:finished:context:)];
CGRect frame = myUIViewObject.frame;
frame.origin = point;
myUIViewObject.frame = frame;
[UIView commitAnimations];
如果您的目标是10.5或更高,则可以通过添加到NSView的动画代理来使用Core Animation。 尝试
[[someView animator] setFrame: someNewFrame];
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