像 UiTableView 一样加载 UIScrollView
有没有一种方法可以以与加载 UITableView 类似的方式加载 UIScrollView - 换句话说，仅加载可见的“单元格”？
对于我的示例，我有一个大滚动视图，可以向任何方向滚动。其中有“单元格”，我使用代码将其添加到滚动视图中。这些单元格由从 json feed 收集的数据组成（每个单元格一个 feed）。我只想加载可见单元格的提要，然后缓存已加载的提要，因此不需要重新加载它们。
有这样做的好方法吗？或者我应该采取另一个方向才能得到这个结果？
有几个答案建议采用平铺方法，但我不确定平铺是否是正确的方法，因为当部分单元可见时需要加载整个单元。谷歌暗示的另一种方法是将 UITableView 放入 UIScrollView 中，但我还没有尝试过。
——————————----------------------
| | | < a 'cell' row in the scrollview
| - - - -| - - - - - - - - - - |
screen > | | |
| | |
—————————— |
| | < whole of scrollable area
| |
| |
| |
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Is there a way to load a UIScrollView in a similar way to how a UITableView is loaded - in other words, only load the visible 'cells'?
For my example I have a large scroll view which can be scrolled in any direction. Inside that are 'cells' which I add to the scroll view using code. The cells consist of data gathered from json feeds (one feed per cell). I would like to only load the feeds for the visible cells, and then cache the ones already loaded, so they don't need to be reloaded.
Is there a good method of doing this? Or is there another direction I should be taking to get this result?
A couple of answers have suggested a tiling approach, but I'm not sure that tiling is quite the right approach, since the whole cell needs to be loaded when part of it is visible. Another approach which google hints at is putting a UITableView within a UIScrollView, but I've yet to try this.
——————————----------------------
| | | < a 'cell' row in the scrollview
| - - - -| - - - - - - - - - - |
screen > | | |
| | |
—————————— |
| | < whole of scrollable area
| |
| |
| |
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您正在描述“平铺”。
看看 Apple 的示例代码 - 它演示了一种平铺方法。
You are describing "tiling."
Take a look at Apple's sample code - it demonstrates an approach to tiling.
您可以使用CATiledLayer。
https://stackoverflow.com/questions/tagged/catiledlayer
https://developer.apple.com/library/ios/#documentation/GraphicsImaging/Reference/CATiledLayer_class/Introduction/Introduction.html
You can use CATiledLayer.
https://stackoverflow.com/questions/tagged/catiledlayer
https://developer.apple.com/library/ios/#documentation/GraphicsImaging/Reference/CATiledLayer_class/Introduction/Introduction.html