试图释放WakeLock时强制关闭？

我有一个按钮，当你点击它时，它打开一个WakeLock，并且工作正常！但是当你再次点击它时，它假设关闭WakeLock，但是它只是崩溃了应用程序！任何帮助将会感激，我知道它不是因为我正在改变图像，因为那部分工作正常！ :)继承人我的代码：试图释放WakeLock时强制关闭？

PowerManager.WakeLock wl; //This is before my oncreate 
int stayAwake = 0; //This is before my oncreate 

    ((Button) findViewById(R.id.sleepLock)).setOnClickListener(new View.OnClickListener() { 

    @Override 
    public void onClick(View v) { 
    PowerManager pm = (PowerManager) getSystemService (Context.POWER_SERVICE); 
    wl = pm.newWakeLock (PowerManager.FULL_WAKE_LOCK, "My Tag"); 
     if (stayAwake == 0) { 
     ((Button) findViewById(R.id.sleepLock)).setBackgroundResource(R.drawable.awake); 
     stayAwake = 1; 
     wl.acquire(); 
     }else { 
      ((Button) findViewById(R.id.sleepLock)).setBackgroundResource(R.drawable.sleep); 
      stayAwake = 0; 
      wl.release(); 
     } 

     // TODO Auto-generated method stub 

    } 
});

的logcat：

06-06 00:44:25.206: W/dalvikvm(3855): threadid=1: thread exiting with uncaught exception (group=0x40a031f8) 
06-06 00:44:25.230: E/AndroidRuntime(3855): FATAL EXCEPTION: main 
06-06 00:44:25.230: E/AndroidRuntime(3855): java.lang.RuntimeException: WakeLock under-locked My Tag 
06-06 00:44:25.230: E/AndroidRuntime(3855):  at android.os.PowerManager$WakeLock.release(PowerManager.java:325) 
06-06 00:44:25.230: E/AndroidRuntime(3855):  at android.os.PowerManager$WakeLock.release(PowerManager.java:300) 
06-06 00:44:25.230: E/AndroidRuntime(3855):  at com.something.something.SavedGame$5.onClick(SavedGame.java:259) 
06-06 00:44:25.230: E/AndroidRuntime(3855):  at android.view.View.performClick(View.java:3511) 
06-06 00:44:25.230: E/AndroidRuntime(3855):  at android.view.View$PerformClick.run(View.java:14105) 
06-06 00:44:25.230: E/AndroidRuntime(3855):  at android.os.Handler.handleCallback(Handler.java:605) 
06-06 00:44:25.230: E/AndroidRuntime(3855):  at android.os.Handler.dispatchMessage(Handler.java:92) 
06-06 00:44:25.230: E/AndroidRuntime(3855):  at android.os.Looper.loop(Looper.java:137) 
06-06 00:44:25.230: E/AndroidRuntime(3855):  at android.app.ActivityThread.main(ActivityThread.java:4424) 
06-06 00:44:25.230: E/AndroidRuntime(3855):  at java.lang.reflect.Method.invokeNative(Native Method) 
06-06 00:44:25.230: E/AndroidRuntime(3855):  at java.lang.reflect.Method.invoke(Method.java:511) 
06-06 00:44:25.230: E/AndroidRuntime(3855):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:787) 
06-06 00:44:25.230: E/AndroidRuntime(3855):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:554) 
06-06 00:44:25.230: E/AndroidRuntime(3855):  at dalvik.system.NativeStart.main(Native Method)

来源

2012-06-06 William L.

'只是崩溃'不是一个有意义的错误报告。连接ADB，运行logcat并发布详细的崩溃消息。 –

帖子崩溃报告 – Sameer

@Sameer是的，收购工作正常！ –

当你松开锁定按钮没有任何参考，你再次重新初始化按钮，不设置clickListener

变化您的代码

Button btn=(Button) findViewById(R.id.sleepLock); 
PowerManager.WakeLock wl; //This is before my oncreate 
int stayAwake = 0; //This is before my oncreate 

btn.setOnClickListener(new View.OnClickListener() { 

    @Override 
    public void onClick(View v) { 
     PowerManager pm = (PowerManager) getSystemService (Context.POWER_SERVICE); 
     wl = pm.newWakeLock (PowerManager.FULL_WAKE_LOCK, "My Tag"); 
     if (stayAwake == 0) { 
      btn.setBackgroundResource(R.drawable.awake); 
      stayAwake = 1; 
      wl.acquire(); 
     } else { 
      btn.setBackgroundResource(R.drawable.sleep); 
      stayAwake = 0; 
      wl.release(); 
     } 
    } 
});

现在您的代码将正常工作

来源

2012-06-06 04:14:19 Sameer

感谢它帮助我 –

试图释放WakeLock时强制关闭？

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