iphone 的滚动文字条(俗名跑马灯)
iphone 的滚动文字条(俗称跑马灯)
转自:http://www.cocoachina.com/bbs/read.php?tid=15816&page=1
[position_l sizeToFit];
CGRect frame = position_l.frame;
frame.origin.x = 320;
position_l.frame = frame;
[UIView beginAnimations:@"testAnimation" context:NULL];
(frame.size.width/position_l.frame.origin.x)>1?[UIView setAnimationDuration:(frame.size.width/position_l.frame.origin.x)*8.8f]:[UIView setAnimationDuration:8.8f];
[UIView setAnimationCurve:UIViewAnimationCurveLinear];
[UIView setAnimationDelegate:self];
[UIView setAnimationRepeatAutoreverses:NO];
[UIView setAnimationRepeatCount:999999];
frame = position_l.frame;
frame.origin.x = -frame.size.width;
position_l.frame = frame;
[UIView commitAnimations];