iOS跑马灯效果的源代码

iOS中实现跑马灯效果的代码片段：

[labelShow sizeToFit];

CGRect frame = labelShow.frame;

frame.origin.x = 320;

labelShow.frame = frame;

[UIView beginAnimations:@"testAnimation" context:NULL];

[UIView setAnimationDuration:8.8f];

[UIView setAnimationCurve:UIViewAnimationCurveLinear];

[UIView setAnimationDelegate:self];

[UIView setAnimationRepeatAutoreverses:NO];

[UIView setAnimationRepeatCount:999999];

frame = labelShow.frame;

frame.origin.x = -frame.size.width;

labelShow.frame = frame;

[UIView commitAnimations];