Android: couldn't save which view has focus because the focused view ### has no id

长平狐 发布于 2013/01/06 11:18
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问题:

Android: couldn't save which view has focus because the focused view ### has no id



可能引起原因有两种,对应解决方法如下:

解决方案一:

<application

        android:icon="@drawable/icon" android:label="@string/app_name" >

        <activity

            android:label="@string/app_name"

           android:configChanges="orientation|keyboardHidden|keyboard|screenLayout

            android:name=".Main" >

            <intent-filter >

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

    </application>


解决方案二:

What probably happened is that you created a thread in the surfaceCreated() method but didn’t stop it or get rid of it in the surfaceDestroy() method.

When you didn’t give a theme for the preferences, it took over the whole screen and your old surface was destroyed. But when you specified a dialog-like theme, the old surface was still there because it was visible underneath the preferences.

 public void surfaceCreated(SurfaceHolder holder)
{
  if (_thread == null || _thread.getState() == Thread.State.TERMINATED)
  {
    _thread = new TutorialThread(getHolder(), this);
    _thread.setRunning(true);
    _thread.start();
  }
  else
  {
    _thread.setRunning(true);
    _thread.start();
  } 
}

This solved the problem for me, a thread’s start method cannot be called twice, so I had to reallocate…

http://forums.pragprog.com/forums/138/topics/4085



原文链接:http://blog.csdn.net/sunboy_2050/article/details/7281066
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