iPhone 4.3.3 显示错误（已贬值）“放大”启动时的快照（屏幕截图）
很难描述我的 iPhone 的情况。
我启动了一个应用程序并使用它。例如，Twitter 应用程序。
之后我用主页按钮关闭了它。
然后我启动了一些足以占用大部分内存的应用程序。
而且，当我再次启动 Twitter 应用程序时，会显示大约 0.5~1 秒的屏幕截图（快照），该屏幕截图正是我第一次关闭应用程序时拍摄的。
我知道这是动画效果的一种方式，但是我的有点不对， 因为如果很久以前启动的应用程序即将从头开始（“twitter”应用程序由于内存不足而必须关闭），则该屏幕截图应该是“正在加载图像（例如：Default.png）”。
当我使用某种“个人备忘录应用程序”时，这会造成压力。 在我升级到 iOS 4.3.3 之前，每当我启动这个应用程序时，它都需要密码，而不显示任何旧的屏幕截图。 但现在，每个人都可以看到我的备忘录，因为自动快照会弹出大约一秒钟。
需要帮助。谢谢！
It's hard to describe my iPhone's situation..
I launched an App and used it. for example, a Twitter app.
After that I closed it with Home Button.
Then I launched a few apps which were enough to take most memory.
And, when I launch the Twitter app again, a screenshot(snapshot), which was taken exactly when I closed the app at first, was shown about 0.5~1 sec.
I know this is a way of animation effect, but mine is somewhat wrong,
because that screenshot should be 'loading image (ex: Default.png)' if the app launched long time ago is about to start from the beginning (the 'twitter' app must be closed because of out of memory).
It makes stressful situation when I use kind of 'personal memo app'.
Before I upgrade to iOS 4.3.3, whenever I launch this app, it requires password without showing any old screenshot.
But now, everyone can see my memo because of that automatic snapshot which pops up about a second.
Help needed. Thanks!
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在您的应用程序进入后台之前，您需要隐藏/删除再次打开应用程序时不想显示的所有视图。
您应该在
applicationDidEnterBackground 中执行此操作：UIApplicationDelegate 方法。请参阅 Apple 开发人员文档的此部分。
Before your app goes into background you need to hide/remove all the views you don't want to appear when you open the app again.
You should do this in the
applicationDidEnterBackground:UIApplicationDelegate method.See the Remove sensitive information from views before moving to the background bullet point in this section of the Apple Developer Docs.
我知道防止这种情况的唯一方法是在 plist 文件中设置“应用程序不在后台运行”。
The only way I know to prevent that is to set "Application does not run in background" in your plist file.