将应用程序从IOS3升级到IOS4需要什么？ [英] What is need to upgrade an app from IOS3 to IOS4?

问题描述

我有一个我为IOS3编写的应用程序，但我想为IOS4进行优化。我必须做些什么（或者另外）。我注意到每一个在很长一段时间内，它会在启动时硬件崩溃，但我还没有得到一个好的调试会话。我希望这里收到的信息也能帮助我解决这个问题。 （注意我在IOS4之前没有崩溃。）

I have an app I have written for IOS3, but I want to polish it up for IOS4. What do I have to do differently (or in addition). I have noticed that every one in a great while, it will crash on the hardware at startup, but I haven't yet gotten a good debug session while it does it. I am hoping that the info received here will help me solve that problem also. (Note that I didn't have the crashes pre-IOS4.)

谢谢

推荐答案

真的，没有太多要求。如果您的构建没有警告并且您已经实现了applicationWillResignActive以保存所有数据，那么您应该可以使用iOS 4并添加多任务功能。在iOS 4上运行不需要支持任何其他内容...

Really, there isn't much that is required. If your build is clean of warnings and you have implemented applicationWillResignActive to save all your data you should be fine with iOS 4 and the multi-tasking features added. Supporting anything else isn't required to run on iOS 4...

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