无法在iOS6中将文本键入UITextField或UITextView [英] Can't type text into UITextField or UITextView in iOS6

问题描述

在我的某个应用中，当我尝试编辑（输入一些文字） UITextField ， UITextView 或任何其他'text-able' UIControl 光标只是闪烁，但没有输入任何字符，但BACKSPACE除外（只有在我有一些初始文本时才有可能） ），RETURN和切换字符类型。这适用于整个应用程序的所有控件。

In one of my apps, when I try to edit (type some text) UITextField, UITextView or any other 'text-able' UIControl the cursor just blinks but no characters are typed in except BACKSPACE (possible only when I have some initial text in it), RETURN and switching character types. This goes to all controls across whole application.

摘要：

1. 它发生了仅来自iOS 6.0（不会发生在iOS 5.x上，4.x上不会出现模拟器或真实设备）


2. 所有委托方法都被触发（shouldBeginEditing：didBeginEditing :) 除了 shouldChangeCharactersInRange：


3. isFirstResponder标志的行为设置正确（shouldBeginEditing：记录NO，而didBeginEditing：正确记录YES）。它也使用了第一个响应者已经编辑过的日志进行测试。


4. 它在任何 UIAlertView 呈现给用户并被解雇。如果此警报显示在同一屏幕（UIViewController视图）或任何其他屏幕上，则无关紧要。



1. It happens only from iOS 6.0 (does not occur on iOS 5.x, 4.x neither Simulator or real device)
2. All delegate methods are fired (shouldBeginEditing: didBeginEditing:) except shouldChangeCharactersInRange:
3. isFirstResponder flag is behaving set correctly (shouldBeginEditing: logs NO, while didBeginEditing: logs YES correctly). It is also tested using logs that THE firstResponder IS the one already edited.
4. It repairs itself after any UIAlertView is presented to the user and dismissed. It doesn't matter if this alert is shown on the same screen (UIViewController view) or any other.

我不知道如何处理或调试它。

I have no idea how to even approach or debug this.

我应该在哪里寻找提示？任何追踪响应者链相关问题的专家等？

Where should I look for hints? Any experts of tracking responder chain related issues etc.?

如何追踪 UIAlertView 的影响问题？

推荐答案

根据你的实现，它是 makeKeyAndVisible 方法您忘记在 - （BOOL）应用程序中调用的 UIWindow 类：（UIApplication *）应用程序didFinishLaunchingWithOptions：（NSDictionary *）launchOptions 应用程序委托的方法或相应的在主界面xib文件中的启动时可见。

Depending on your implementation it's either the makeKeyAndVisible method of the UIWindow class that you forgot to call inside the - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions method of the application delegate or corresponding Visible at Launch flag in your main interface xib file.

干杯...... :)

Cheers... :)

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