跑马灯效果动画

最新推荐文章于 2025-06-03 09:43:08 发布

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本文介绍如何使用Objective-C为UILabel添加自定义动画效果，包括动画开始、持续时间、曲线设置及重复次数等关键参数的配置。

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    UILabel *label3 = [[UILabel alloc] initWithFrame:CGRectMake(10,300, 300, 100)];
    
    label3.text =@"噜啦啦噜啦啦噜啦";
    
    [self.view addSubview:label3];
    
    CGRect frame = label3.frame;
    
    frame.origin.x = -180;
    
    label3.frame = frame;
    
    [UIView beginAnimations:@"testAnimation"context:NULL];
    
    [UIView setAnimationDuration:8.8f];
    
    [UIView setAnimationCurve:UIViewAnimationCurveLinear];
    
    [UIView setAnimationDelegate:self];
    
    [UIView setAnimationRepeatAutoreverses:NO];
    
    [UIView setAnimationRepeatCount:999999];
    
    frame = label3.frame;
    
    frame.origin.x =350;
    
    label3.frame = frame;
    
    [UIView commitAnimations];