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 LTInfiniteScrollViewDelegate
protocol:
如果你想在滑动期间实现其他的动画效果,实现这个LTInfiniteScrollViewDelegate
protocol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~