廣播接收機在改變屏幕方向後崩潰並且不工作

我有2個BroadcastReceivers用於收看SMS狀態。代碼：廣播接收機在改變屏幕方向後崩潰並且不工作

//---when the SMS has been sent--- 
    registerReceiver(new BroadcastReceiver(){ 
     @Override 
     public void onReceive(Context arg0, Intent arg1) { 
     ................... 
     ................... 
     }, new IntentFilter(SENT)); 
    //---when the SMS has been delivered--- 
    registerReceiver(new BroadcastReceiver(){ 
     @Override 
     public void onReceive(Context arg0, Intent arg1) { 
     ................... 
     ................... 
     }, new IntentFilter(DELIVERED));

這兩個接收器都位於一個稱爲initSMS程序（）。在OnCreate（）方法中調用initSMS（）一次。一切正常，但下面的情況令我失望。當用戶改變屏幕方向時，android會拋出異常，應用程序被禁止。 LogCat顯示我的程序不想第二次註冊BroadcastReceiver。我認爲沒有任何問題，並且下次在OnCreate（）中添加一個布爾標誌來跳過調用initSMS（）。但即使initSMS（）的調用被跳過第二次，第一次屏幕到這裏的朝向改變是logcat的一個新的bug ::

活動已泄漏IntentReceiver

一旦發生這種情況，就不可能跟蹤SMS的狀態，接收器不起作用。但是，如果用戶嘗試播放並繼續更改方向，則在任何情況下都不會出現錯誤。

誰知道，發生了什麼事？解決方案就像塊權限更改方向不感興趣。我需要了解發生在這裏的事情並解決當前的問題。

logcat的

> 10-15 20:08:20.863: ERROR/ActivityThread(452): Activity 
> com.example.android.Dima.MySoft has leaked IntentReceiver 
> [email protected] that was originally 
> registered here. Are you missing a call to unregisterReceiver()? 10-15 
> 20:08:20.863: ERROR/ActivityThread(452): 
> android.app.IntentReceiverLeaked: Activity 
> com.example.android.Dima.MySoft has leaked IntentReceiver 
> [email protected] that was originally 
> registered here. Are you missing a call to unregisterReceiver()? 10-15 
> 20:08:20.863: ERROR/ActivityThread(452): at 
> android.app.LoadedApk$ReceiverDispatcher.<init>(LoadedApk.java:799) 
> 10-15 20:08:20.863: ERROR/ActivityThread(452): at 
> android.app.LoadedApk.getReceiverDispatcher(LoadedApk.java:575) 10-15 
> 20:08:20.863: ERROR/ActivityThread(452): at 
> android.app.ContextImpl.registerReceiverInternal(ContextImpl.java:852) 
> 10-15 20:08:20.863: ERROR/ActivityThread(452): at 
> android.app.ContextImpl.registerReceiver(ContextImpl.java:839) 10-15 
> 20:08:20.863: ERROR/ActivityThread(452): at 
> android.app.ContextImpl.registerReceiver(ContextImpl.java:833) 10-15 
> 20:08:20.863: ERROR/ActivityThread(452): at 
> android.content.ContextWrapper.registerReceiver(ContextWrapper.java:318) 
> 10-15 20:08:20.863: ERROR/ActivityThread(452): at 
> com.example.android.Dima.MySoft.initSMS(MySoft.java:473) 10-15 
> 20:08:20.863: ERROR/ActivityThread(452): at 
> com.example.android.Dima.MySoft.onCreate(MySoft.java:263) 10-15 
> 20:08:20.863: ERROR/ActivityThread(452): at 
> android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1093) 
> 10-15 20:08:20.863: ERROR/ActivityThread(452): at 
> android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1785) 
> 10-15 20:08:20.863: ERROR/ActivityThread(452): at 
> android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1842) 
> 10-15 20:08:20.863: ERROR/ActivityThread(452): at 
> android.app.ActivityThread.access$1500(ActivityThread.java:132) 10-15 
> 20:08:20.863: ERROR/ActivityThread(452): at 
> android.app.ActivityThread$H.handleMessage(ActivityThread.java:1038) 
> 10-15 20:08:20.863: ERROR/ActivityThread(452): at 
> android.os.Handler.dispatchMessage(Handler.java:99) 10-15 
> 20:08:20.863: ERROR/ActivityThread(452): at 
> android.os.Looper.loop(Looper.java:143) 10-15 20:08:20.863: 
> ERROR/ActivityThread(452): at 
> android.app.ActivityThread.main(ActivityThread.java:4268) 10-15 
> 20:08:20.863: ERROR/ActivityThread(452): at 
> java.lang.reflect.Method.invokeNative(Native Method) 10-15 
> 20:08:20.863: ERROR/ActivityThread(452): at 
> java.lang.reflect.Method.invoke(Method.java:507) 10-15 20:08:20.863: 
> ERROR/ActivityThread(452): at 
> com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839) 
> 10-15 20:08:20.863: ERROR/ActivityThread(452): at 
> com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597) 10-15 
> 20:08:20.863: ERROR/ActivityThread(452): at 
> dalvik.system.NativeStart.main(Native Method) 10-15 20:08:20.873: 
> ERROR/ActivityThread(452): Activity com.example.android.Dima.MySoft 
> has leaked IntentReceiver [email protected] 
> that was originally registered here. Are you missing a call to 
> unregisterReceiver()? 10-15 20:08:20.873: ERROR/ActivityThread(452): 
> android.app.IntentReceiverLeaked: Activity 
> com.example.android.Dima.MySoft has leaked IntentReceiver 
> [email protected] that was originally 
> registered here. Are you missing a call to unregisterReceiver()? 10-15 
> 20:08:20.873: ERROR/ActivityThread(452): at 
> android.app.LoadedApk$ReceiverDispatcher.<init>(LoadedApk.java:799) 
> 10-15 20:08:20.873: ERROR/ActivityThread(452): at 
> android.app.LoadedApk.getReceiverDispatcher(LoadedApk.java:575) 10-15 
> 20:08:20.873: ERROR/ActivityThread(452): at 
> android.app.ContextImpl.registerReceiverInternal(ContextImpl.java:852) 
> 10-15 20:08:20.873: ERROR/ActivityThread(452): at 
> android.app.ContextImpl.registerReceiver(ContextImpl.java:839) 10-15 
> 20:08:20.873: ERROR/ActivityThread(452): at 
> android.app.ContextImpl.registerReceiver(ContextImpl.java:833) 10-15 
> 20:08:20.873: ERROR/ActivityThread(452): at 
> android.content.ContextWrapper.registerReceiver(ContextWrapper.java:318) 
> 10-15 20:08:20.873: ERROR/ActivityThread(452): at 
> com.example.android.Dima.MySoft.initSMS(MySoft.java:511) 10-15 
> 20:08:20.873: ERROR/ActivityThread(452): at 
> com.example.android.Dima.MySoft.onCreate(MySoft.java:263) 10-15 
> 20:08:20.873: ERROR/ActivityThread(452): at 
> android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1093) 
> 10-15 20:08:20.873: ERROR/ActivityThread(452): at 
> android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1785) 
> ....

而且混淆了logcat的

下一個短語你缺少unregisterReceiver（）的調用？

...爲什麼會發生這種情況？

來源

2011-10-15 Dimon

當用戶更改屏幕方向時android會拋出異常應用程序被禁止。

您應該註銷接收器，例如onPause()，並在onResume()中註冊它們。這樣，當Android銷燬並重新創建配置更改的活動時，您仍然會設置接收器。

來源

2011-10-15 23:04:56 CommonsWare

非常感謝您的幫助！一切正常，清晰！ – Dimon

廣播接收機在改變屏幕方向後崩潰並且不工作

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