registerReceiver和unregisterReceiver的调用者必须一致

// registerReceiver和unregisterReceiver的调用者必须一致
protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.broadcast);
 
 IntentFilter intentFilter = new IntentFilter("broad");
 this.getApplication().registerReceiver(mB, intentFilter);
}

protected void onDestroy() {
 super.onDestroy();
 this.unregisterReceiver(mB);
}

这样会出错的哦，

改成：

this.registerReceiver(mB, intentFilter);

this.unregisterReceiver(mB);

或

this.getApplication().registerReceiver(mB, intentFilter);

this.getApplication().unregisterReceiver(mB);