致命異常：java.lang.IllegalStateException：使用LocalBroadcastManager銷燬活動

Question

我使用BroadcastReceiver和LocalBrodcastManager來跟蹤數據更改和更新視圖。下面 代碼示例：

public class TestActivity extends AppCompatActivity { 

    BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() { 
     @Override 
     public void onReceive(Context context, Intent intent) { 
      doSomeStaff(); 
     } 
    }; 

    private void doSomeStaff() { 
     //Do some staff with activity 
    } 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
    } 

    @Override 
    protected void onStart() { 
     super.onStart(); 
     LocalBroadcastManager.getInstance(this).registerReceiver(mBroadcastReceiver,null); 
    } 

    @Override 
    protected void onStop() { 
     super.onStop(); 
     LocalBroadcastManager.getInstance(this).unregisterReceiver(mBroadcastReceiver); 
    } 
} 

很少我有一次危機：

Fatal Exception: java.lang.IllegalStateException: Activity has been destroyed 
     at android.support.v4.app.FragmentManagerImpl.enqueueAction(FragmentManager.java:1470) 
     at android.support.v4.app.BackStackRecord.commitInternal(BackStackRecord.java:634) 
     at android.support.v4.app.BackStackRecord.commitAllowingStateLoss(BackStackRecord.java:617) 

我認爲它是因爲我在屏幕上，並顯示出的GoogleMap /根據數據狀態隱藏它。 例子：

getSupportFragmentManager().beginTransaction() 
        .show(mMapFragment).commitAllowingStateLoss(); 

Answer 1

似乎存在現在的問題是圍繞你的onReceive用isDestroyed（）檢查最簡單的解決方案。

BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() { 
    @Override 
    public void onReceive(Context context, Intent intent) { 
     if (!isDestroyed) { 
      doSomeStaff(); 
     } 
    } 
};