iphone - UIView.我可以使用的最大边界尺寸是多少？

Question

有人知道 someView.bounds.size 的最大值吗？我正在创建一个 View 层次结构，其中所有 subview 的累积边界框等于根父 View 。

干杯，道格

Answer 1

根据UIView documentation :

Prior to iPhone OS 3.0, UIView instances may have a maximum height and width of 1024 x 1024. In iPhone OS 3.0 and later, views are no longer restricted to this maximum size but are still limited by the amount of memory they consume. Therefore, it is in your best interests to keep view sizes as small as possible. Regardless of which version of iPhone OS is running, you should consider using a CATiledLayer object if you need to create views larger than 1024 x 1024 in size.

实际上，我能够在 2.x 中的标准 iPhone/iPhone 3G 上创建尺寸为 2048 x 2048 的 UIView 和 CALayers。任何高于此值的内容都会停止渲染。