广告条文字翻滚效果

在马远帮助下实现的文字翻滚效果，谢谢 呵呵

/**

 *  开始翻滚: "安全扫描中..."及扫描到的网址

 */

- (void)scrollViewRoll

{

    rollCount++;

    if (rollCount ==3) {

        [self resultShow];

        return;

    };

    

    [UIViewanimateWithDuration:0.5animations:^ {

        _scaningLabel.frame =CGRectMake(60, -56,220,56);

        _scanedLabel.frame =CGRectMake(60,0,220, 56);

    } completion:^(BOOL finished) {

        _scaningLabel.frame =CGRectMake(60,56,220, 56);

        [selfperformSelector:@selector(rollShow)withObject:nilafterDelay:1.0];

    }];

}

- (void)rollShow

{

    [UIViewanimateWithDuration:0.5animations:^{

        _scaningLabel.frame =CGRectMake(60,0,220, 56);

        _scanedLabel.frame =CGRectMake(60, -56,220,56);

    }completion:^(BOOL finished) {

        _scanedLabel.frame =CGRectMake(60,56,220, 56);

        

        [selfperformSelector:@selector(scrollViewRoll)withObject:nilafterDelay:1.0];

    }];

}