使用廣播接收
IntentFilter filter = new IntentFilter("com.xxxx");
MyBroadcastReceiver myBroadcastReceiver = new MyBroadcastReceiver();
registerReceiver(myBroadcastReceiver,filter);
想使廣播接收變成觸發條件
if(接收到廣播){
//執行動作
}
這個if() 條件判斷該怎麼寫呢?

執行的動作寫在BroadcastReceiver的onReceive裡