检测iOS8可达性手势 [英] Detect iOS8 Reachability Gesture

问题描述

有哪些方法可以在Objective-C中检测iOS8的新可达性手势？

Any ways to detect the new Reachability gesture of iOS8 in Objective-C?

手势被激活，双击TouchID按钮iPhone6和iPhone6Plus。

The gesture is activated double tapping the TouchID button on the iPhone6 and iPhone6Plus.

推荐答案

没有公共API。

<$ c上的两个相关私有API方法$ c> UIApplication 我可以找到（使用其中任何一个应该从App Store拒绝你的应用程序）：

There are two related private API methods on UIApplication I can find (using either of these should get your app rejected from the App Store):

• _setReachabilitySupported：，可能会启用/禁用可达性（如Spotlight）


• _deactivateReachability ，它会将视图返回到屏幕上的正常位置

• _setReachabilitySupported:, which presumably would en/disable reachability (like Spotlight)
• _deactivateReachability, which would return the view to the normal place on the screen

我什么都看不到通知你的a然而，用户已执行手势的应用程序。

I don't see anything that informs your application that the user has performed the gesture, however.

您还可以尝试子类化 UIWindow 并覆盖 setFrame：。在此方法中设置断点，如果在启用可达性时触发断点，则可以查看堆栈跟踪以获取更多信息。

You could also experiment with subclassing UIWindow and overriding setFrame:. Set a breakpoint in this method, and if it fires when you enable Reachability, you can look at the stack trace for more information.

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