PunchScrollView
PunchScrollView是一个简化版的UIScrollView子类，适用于iOS，其功能类似于UICollectionView或UITableView框架。
简易快速实现：代理、数据源方法和获取器与UITableView类似。利用类似于UITableView或UICollectionView中已知的NSIndexPath模式的好处。这允许与Core Data轻松组合设置。
- 有用的方法，例如跳转或滚动到指定页面
- 避免样板代码
- 通过自动获取节省大量内存
- 附带的示例项目可用于演示用法
- 无限滚动
在ViewController中的示例设置
self.scrollView = [[PunchScrollView alloc] init];
self.scrollView.delegate = self;
self.scrollView.dataSource = self;
self.scrollView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
[self.view addSubview:self.scrollView];
#pragma mark - PunchScrollViewDataSource
- (NSInteger)numberOfSectionsInPunchScrollView:(PunchScrollView *)scrollView
{
return 3;
}
- (NSInteger)punchscrollView:(PunchScrollView *)scrollView numberOfPagesInSection:(NSInteger)section
{
return 3;
}
- (UIView*)punchScrollView:(PunchScrollView*)scrollView viewForPageAtIndexPath:(NSIndexPath *)indexPath
{
ExamplePageView *page = (ExamplePageView*)[scrollView dequeueRecycledPage];
if (page == nil)
{
//
// You could also use PunchScrollview as gallery scrollview - just change the size of the desired view
//
page = [[ExamplePageView alloc] initWithFrame:self.view.bounds];
page.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
}
page.titleLabel.text = [NSString stringWithFormat:@"Page %@ in section %@", @(indexPath.row), @(indexPath.section)];
return page;
}
问题
- 目前在iOS 8中切换为横屏模式时，当无限滚动（在极少数情况下）存在问题。可见页面的布局不正确。