• UIScrollView 期本使用方法


          myScroll=[[UIScrollView alloc] initWithFrame:CGRectMake(50, 120, 617, 131*6)];
            myScroll.bounces = YES; //是不有拉申返弹的效果
            myScroll.pagingEnabled = YES;//是否分页显示
            myScroll.delegate = self;//设定理方法
            myScroll.userInteractionEnabled = YES;
            myScroll.showsHorizontalScrollIndicator=NO;//是否显示水平滑动条
            myScroll.showsVerticalScrollIndicator= NO;//是否显示竖直滑动条
            //设定scrollView滑动的大小范围
            myScroll.contentSize = CGSizeMake(myScroll.frame.size.width * [self.myArray count],myScroll.frame.size.height);
            [self.view addSubview:myScroll];
            [myScroll release];
    
    
    #pragma mark UIScrollViewDelegate
    //只要滚动了就会触发
    - (void)scrollViewDidScroll:(UIScrollView *)scrollView;
    {
       NSLog(@"ContentOffset  x is  %f,yis %f",scrollView.contentOffset.x,scrollView.contentOffset.y);
    }
    //开始拖拽视图
    - (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView;
    {
        NSLog(@"开始拖拽视图");
    }
    //完成拖拽
    - (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate;
    {
        NSLog(@"完成拖拽");
    }
    //将开始降速时
    - (void)scrollViewWillBeginDecelerating:(UIScrollView *)scrollView;
    {
        NSLog(@"将开始降速时");
    }
    
    //减速停止了时执行,手触摸时执行执行
    - (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView;
    {
        NSLog(@"减速停止了时执行,手触摸时执行执行");
    }
    //滚动动画停止时执行,代码改变时出发,也就是setContentOffset改变时
    - (void)scrollViewDidEndScrollingAnimation:(UIScrollView *)scrollView;
    {
    
        NSLog(@"滚动动画停止时执行,代码改变时出发,也就是setContentOffset改变时");
    }
    //设置放大缩小的视图,要是uiscrollview的subview
    - (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView;
    {
        NSLog(@"设置放大缩小的视图,要是uiscrollview的subview");
        return nil;
    }
    //完成放大缩小时调用
    - (void)scrollViewDidEndZooming:(UIScrollView *)scrollView withView:(UIView *)view atScale:(float)scale;
    {
        NSLog(@"s完成放大缩小时调用");
    }
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  • 原文地址:https://www.cnblogs.com/741162830qq/p/4620520.html
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