【代碼筆記】iOS-字型從右向左滾動，筆記ios-字型滾動

【代碼筆記】iOS-字型從右向左滾動，筆記ios-字型滾動

一，。

二，代碼。

ViewController.m

- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view, typically from a nib.        //上面的捲軸    UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(5, 50, 500, 40)];    label.text=@"111111111111122222222";    label.backgroundColor=[UIColor redColor];    [self.view addSubview:label];        //從右至左滾動    [self AnimationWithLabel:label];}//使字型從右向左滾動- (void)AnimationWithLabel:(UILabel*)labelShow;{    CGRect frame = labelShow.frame;    frame.origin.x = W;    labelShow.frame = frame;    [UIView beginAnimations:@"testAnimation" context:NULL];    [UIView setAnimationDuration:6.0f];    [UIView setAnimationCurve:UIViewAnimationCurveLinear];    [UIView setAnimationDelegate:self];    [UIView setAnimationRepeatAutoreverses:NO];    [UIView setAnimationRepeatCount:9999999999];    frame = labelShow.frame;    frame.origin.x = -290;    labelShow.frame = frame;    [UIView commitAnimations];}