[翻译] LTInfiniteScrollView

LTInfiniteScrollView

效果：

Usage - 使用

Create the scroll view by:

通过以下方式来创建出scroll view

self.scrollView = [[LTInfiniteScrollView alloc]initWithFrame:CGRectMake(0, 0, CGRectGetWidth(self.view.bounds), 200)];

[self.view addSubview:self.scrollView];

self.scrollView.dataSource = self;

[self.scrollView reloadData];

Then implement LTInfiniteScrollViewDataSource protocol:

然后实现LTInfiniteScrollViewDataSource协议方法：

@protocol LTInfiniteScrollViewDataSource <NSObject>

-(UIView*) viewAtIndex:(int)index reusingView:(UIView *)view;

-(int) totalViewCount;

-(int) visibleViewCount;

@end

Sample code:

示例源码：

-(int) totalViewCount

{

    // you can set it to a very big number to mimic the infinite behavior, no performance issue here

    return 100000000;

}

-(int) visibleViewCount

{

    return 5;

}

-(UIView*) viewAtIndex:(int)index reusingView:(UIView *)view;

{

    if(view){

        ((UILabel*)view).text = [NSString stringWithFormat:@"%d", index];

        return view;

    }

    UILabel *aView = [[UILabel alloc]initWithFrame:CGRectMake(0, 0, 64, 64)];

    aView.backgroundColor = [UIColor blackColor];

    aView.layer.cornerRadius = 32;

    aView.layer.masksToBounds = YES;

    aView.backgroundColor = [UIColor colorWithRed:0/255.0 green:175/255.0 blue:240/255.0 alpha:1];

    aView.textColor = [UIColor whiteColor];

    aView.textAlignment = NSTextAlignmentCenter;

    aView.text = [NSString stringWithFormat:@"%d", index];

    return aView;

}

If you want to apply any animation during scrolling, implement LTInfiniteScrollViewDelegateprotocol:

如果你想在滑动期间实现其他的动画效果，实现这个LTInfiniteScrollViewDelegateprotocol协议即可：

@protocol LTInfiniteScrollViewDelegate <NSObject>

-(void) updateView:(UIView*) view withDistanceToCenter:(CGFloat)distance scrollDirection:(ScrollDirection)direction;

@end

See the example for details~

请从示例源码中查看更多的细节~

巴特西

[翻译] LTInfiniteScrollView

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