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[翻译] LTInfiniteScrollView

2024-10-27 20:38:02   208人阅读

LTInfiniteScrollView

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效果：

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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~

 

[翻译] LTInfiniteScrollView


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