iOS-标签或图像的动画移动

你在找 -beginAnimations:context: 和 -commitAnimations 方法对 UIView .

简而言之,你做的事情如下:

[UIView beginAnimations:nil context:NULL]; // animate the following:
myLabel.frame = newRect; // move to new location
[UIView setAnimationDuration:0.3];
[UIView commitAnimations];

对于ios4及以后的版本,不应使用 beginAnimations:context 和 commitAnimations ,因为在 documentation .

相反,您应该使用基于块的方法之一。

上面的示例如下所示:

[UIView animateWithDuration:0.3 animations:^{  // animate the following:
    myLabel.frame = newRect; // move to new location
}]; 

下面是一个例子 UILabel -动画将在0.3秒内从左侧滑动标签。

// Save the original configuration. 
CGRect initialFrame = label.frame;

// Displace the label so it's hidden outside of the screen before animation starts.
CGRect displacedFrame = initialFrame;
displacedFrame.origin.x = -100;
label.frame = displacedFrame;

// Restore label's initial position during animation. 
[UIView animateWithDuration:0.3 animations:^{
    label.frame = initialFrame;
}];