（iOS开发）图片等实现360°旋转

最新推荐文章于 2022-08-05 13:26:59 发布

原创最新推荐文章于 2022-08-05 13:26:59 发布 · 1.6k 阅读

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本文介绍了如何使用Objective-C实现iOS应用中视图的无限旋转动画效果，并提供了通过不同方法实现动画启动与停止的具体代码示例。

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-(void) startAnimation
{  
    [UIView animateWithDuration:1.5 animations:^{
        CABasicAnimation *fullRotation;
        fullRotation = [CABasicAnimation animationWithKeyPath:@"transform.rotation"];
        fullRotation.fromValue = [NSNumber numberWithFloat:0];
        fullRotation.toValue = [NSNumber numberWithFloat:(2*M_PI)];
        fullRotation.duration =1.0f;
        fullRotation.repeatCount = MAXFLOAT;
        // add animation in your view
        [_imageView1.layer addAnimation:fullRotation forKey:@"3601"];
        [_imageView2.layer addAnimation:fullRotation forKey:@"3602"];
    }];
}

-(void)endAnimation
{
    [_imageView1.layer removeAnimationForKey:@"3601"];
    [_imageView2.layer removeAnimationForKey:@"3602"];
    NSLog(@"停止");
}

或者：
-(void) startAnimation
{
    [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDuration:0.01];
    [UIView setAnimationDelegate:self];
    [UIView setAnimationDidStopSelector:@selector(endAnimation)];
    _imageView1.transform = CGAffineTransformMakeRotation(angle * (M_PI / 180.0f));
    _imageView2.transform = CGAffineTransformMakeRotation(angle * (M_PI / 180.0f));
    [UIView commitAnimations];
}

-(void)endAnimation
{
    angle += 10;
    [self startAnimation];
}

或者：
    timer=[NSTimer scheduledTimerWithTimeInterval:0.01 target:self selector:@selector(transformAction) userInfo:nil repeats:YES];

-(void)transformAction {
    angle +=5;
     CGAffineTransform endAngle = CGAffineTransformMakeRotation(angle * (M_PI / 180.0f));
    _imageView1.transform = endAngle;
    _imageView2.transform=endAngle;
}