为什么键盘滑动崩溃我的应用程序？

Question

如果我身体滑出我的Moto Droid A855键盘，它会崩溃我的测试应用程序与粘贴下面的堆栈跟踪。我不明白为什么？另外，如果我用键盘启动我的应用程序，我的应用程序会在启动时立即崩溃。

该应用程序包含一个activity，其中包含一个viewflipper作为主视图布局。该viewflipper包含两个linearlayouts ...

堆栈跟踪：

06-10 21:10:17.652 E/AndroidRuntime(3785): Uncaught handler: thread main exiting due to uncaught exception 
06-10 21:10:17.668 E/AndroidRuntime(3785): java.lang.IllegalArgumentException: Receiver not registered: android.widget.ViewFlipper$1@447af0b8 
06-10 21:10:17.668 E/AndroidRuntime(3785):  at android.app.ActivityThread$PackageInfo.forgetReceiverDispatcher(ActivityThread.java:667) 
06-10 21:10:17.668 E/AndroidRuntime(3785):  at android.app.ApplicationContext.unregisterReceiver(ApplicationContext.java:747) 
06-10 21:10:17.668 E/AndroidRuntime(3785):  at android.content.ContextWrapper.unregisterReceiver(ContextWrapper.java:321) 
06-10 21:10:17.668 E/AndroidRuntime(3785):  at android.widget.ViewFlipper.onDetachedFromWindow(ViewFlipper.java:104) 
06-10 21:10:17.668 E/AndroidRuntime(3785):  at android.view.View.dispatchDetachedFromWindow(View.java:5835) 
06-10 21:10:17.668 E/AndroidRuntime(3785):  at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:1076) 
06-10 21:10:17.668 E/AndroidRuntime(3785):  at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:1074) 
06-10 21:10:17.668 E/AndroidRuntime(3785):  at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:1074) 
06-10 21:10:17.668 E/AndroidRuntime(3785):  at android.view.ViewGroup.dispatchDetachedFromWindow(ViewGroup.java:1074) 
06-10 21:10:17.668 E/AndroidRuntime(3785):  at android.view.ViewRoot.dispatchDetachedFromWindow(ViewRoot.java:1570) 
06-10 21:10:17.668 E/AndroidRuntime(3785):  at android.view.ViewRoot.doDie(ViewRoot.java:2556) 
06-10 21:10:17.668 E/AndroidRuntime(3785):  at android.view.ViewRoot.die(ViewRoot.java:2526) 
06-10 21:10:17.668 E/AndroidRuntime(3785):  at android.view.WindowManagerImpl.removeViewImmediate(WindowManagerImpl.java:218) 
06-10 21:10:17.668 E/AndroidRuntime(3785):  at android.view.Window$LocalWindowManager.removeViewImmediate(Window.java:436) 
06-10 21:10:17.668 E/AndroidRuntime(3785):  at android.app.ActivityThread.handleDestroyActivity(ActivityThread.java:3498) 
06-10 21:10:17.668 E/AndroidRuntime(3785):  at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:3599) 
06-10 21:10:17.668 E/AndroidRuntime(3785):  at android.app.ActivityThread.access$2300(ActivityThread.java:119) 
06-10 21:10:17.668 E/AndroidRuntime(3785):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1867) 
06-10 21:10:17.668 E/AndroidRuntime(3785):  at android.os.Handler.dispatchMessage(Handler.java:99) 
06-10 21:10:17.668 E/AndroidRuntime(3785):  at android.os.Looper.loop(Looper.java:123) 
06-10 21:10:17.668 E/AndroidRuntime(3785):  at android.app.ActivityThread.main(ActivityThread.java:4363) 
06-10 21:10:17.668 E/AndroidRuntime(3785):  at java.lang.reflect.Method.invokeNative(Native Method) 
06-10 21:10:17.668 E/AndroidRuntime(3785):  at java.lang.reflect.Method.invoke(Method.java:521) 
06-10 21:10:17.668 E/AndroidRuntime(3785):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) 
06-10 21:10:17.668 E/AndroidRuntime(3785):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 
06-10 21:10:17.668 E/AndroidRuntime(3785):  at dalvik.system.NativeStart.main(Native Method) 
06-10 21:10:17.684 I/Process (1017): Sending signal. PID: 3785 SIG: 3 

编辑：添加XML布局和主要活动相关的片段。

整个XML布局文件从主要活动

<?xml version="1.0" encoding="utf-8"?> 


<ViewFlipper 
     xmlns:android="http://schemas.android.com/apk/res/android" 
     android:id="@+id/vFlipper" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content"> 

       <!-- Linear Layout 1: messages and overview. --> 
       <LinearLayout 
        android:orientation="vertical" 
        android:layout_width="fill_parent" 
        android:layout_height="fill_parent" 
        > 

       <TableRow android:id="@+id/TableRow01" android:layout_width="fill_parent" android:layout_height="wrap_content"> 
       <TextView 
         android:text="Connection info" 
         android:id="@+id/tvCon1" 
         android:layout_width="fill_parent" 
         android:layout_height="wrap_content" 
         android:background="#F0F0F0" 
         android:textColor="#FF0000" 
         /> 
       </TableRow> 


       <ScrollView 
         android:id="@+id/ScrollView01" 
         android:layout_width="fill_parent" 
         android:layout_height="fill_parent"> 

           <TextView 
             android:id="@+id/tvMessages" 
            android:layout_width="fill_parent" 
            android:layout_height="fill_parent" 
            android:text="" 
            /> 

       </ScrollView> 

     </LinearLayout> 


     <!-- Linear Layout 2: settings --> 
     <LinearLayout 
        android:orientation="vertical" 
        android:layout_width="fill_parent" 
        android:layout_height="fill_parent" 
        > 


       <TableRow 
         android:id="@+id/TableRow03" 
         android:layout_width="fill_parent" 
         android:layout_height="wrap_content"> 

           <TextView 
           android:text="hello world" 
           android:id="@+id/asdfasdf2" 
           android:layout_width="fill_parent" 
           android:layout_height="wrap_content" 
           /> 
       </TableRow>     

     </LinearLayout> 

</ViewFlipper> 

代码片段：

/** 
* Attempt (not currently working) to work around this bug: http://code.google.com/p/android/issues/detail?id=6191 
* TODO: make it work. 
*/ 
@Override 
public void onDetachedFromWindow() { 
     Log.d("Dash","OnDetachedFromWindow()"); 

     try { 
     super.onDetachedFromWindow(); 
    } 
    catch (Exception e) { 
     ViewFlipper v = (ViewFlipper)findViewById(R.id.vFlipper); 
     if (v != null) { 
       Log.d("Dash","De-Bug hit. e=" + e.getMessage()); 
       v.stopFlipping(); 
     } 
    } 
} 

Answer 1

要解决此问题，你必须

• 定义一个名为MyViewFlipper新的类，它覆盖ViewFlipper（见下文）
• 参考新课改的任何地方，你会先前引用ViewFlipper
• 定义类和布局如下图所示：

新班级名为MyViewFlipper。包含以下内容：

package com.gtosoft.dash; // change this to match your own app. 

import android.content.Context; 
import android.util.AttributeSet; 
import android.util.Log; 
import android.widget.ViewFlipper; 

public class MyViewFlipper extends ViewFlipper { 

    public MyViewFlipper(Context context, AttributeSet attrs) { 
     super(context, attrs); 
    } 

    @Override 
    protected void onDetachedFromWindow() { 
     try{ 
      super.onDetachedFromWindow(); 
     }catch(Exception e) { 
      Log.d("MyViewFlipper","Stopped a viewflipper crash"); 
      stopFlipping(); 
     } 
    } 
} 

现在使用的ViewFlipper这个“固定”版本，你必须引用它的XML布局。因为它基本上是一个“自定义视图”，您必须将包路径完全有资格MyViewFlipper，如下所示：

<com.gtosoft.dash.MyViewFlipper 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@+id/vFlipper" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content"> 

    (insert all the other old layout code here) 

</com.gtosoft.dash.MyViewFlipper> 

现在，应用程序不再崩溃在键盘上滑动事件或如果应用程序开始滑出已经出来。查找此日志中：

06-11 20:08:15.811 D/MyViewFlipper(6106): Stopped a viewflipper crash 

信用：http://code.google.com/p/android/issues/detail?id=6191

Answer 2

这真的很难帮你，如果你不提供你的代码的某些部分...无论如何，这个错误不是新的，有一些解决方法，以解决它（我想是一些错误）...尝试这样做：

@Override 
protected void onDetachedFromWindow() { 
    try { 
     super.onDetachedFromWindow(); 
    } 
    catch (IllegalArgumentException e) { 
     stopFlipping(); 
    } 
} 

这是为了覆盖onDetachedFromWindow，我希望它适合你。

Answer 3

我知道这个问题差不多两年前有人问，但此后一个很简单的办法已经实施。只需在清单中的每个活动呼叫中添加android:configChanges="orientation|keyboard|keyboardHidden"即可。

Answer 4

是的我没有看到这个bug之前..但后来我再次在我的清单中有这个

<activity 
     android:name=".MainActivity" 
     android:configChanges="keyboardHidden|navigation" 
     android:label="@string/app_name" 
     android:launchMode="singleTop" > 
     <intent-filter> 
      <action android:name="android.intent.action.MAIN" /> 

      <category android:name="android.intent.category.DEFAULT" /> 
     </intent-filter> 

</activity>