如何在iPhone中从左到右动画视图？

Question

如何从左到右动画视图过渡(类似推视图).单击按钮时,视图应从左向右移动.所以请指导我并给出一些示例链接.

谢谢.

Answer 1

假设你想从右边推view2来替换view1。

// Set up view2
view2.frame = view1.frame;
view2.center = CGPointMake(view1.center.x + CGRectGetWidth(view1.frame), view1.center.y);
[view1.superview addSubview: view2];
// Animate the push
[UIView beginAnimations: nil context: NULL];
[UIView setAnimationDelegate: self];
[UIView setAnimationDidStopSelector: @selector(pushAnimationDidStop:finished:context:)];
view2.center = view1.center;
view1.center = CGPointMake(view1.center.x - CGRectGetWidth(view1.frame), view1.center.y);
[UIView commitAnimations];

然后（可选）实现此方法以从视图层次结构中删除 view1：

- (void) pushAnimationDidStop: (NSString *) animationID finished: (NSNumber *) finished context: (void *) context {
    [view1 removeFromSuperview];
}

在该动画委托方法中，您可能还想释放 view1 并将其引用设置为 nil，具体取决于您是否需要在转换后保留它。