Android：在JAVA中的线程上按顺序执行任务

Question

具有接收到BroadcastReceiver动作事件并需要按顺序执行它们的用例。

如下所示，事件1和事件2可以背对背接收。 必须完成Event1的工作，然后再开始Event2的工作。

如何使其顺序？

BroadcastReceiver{

onReceive(){

Event1:
Task1 doing Something different.//Cant run network operations here.

Event2:
Task2 doing Something different.//Cant run network operations here.

}

}

executors.newsinglethreadexecutor()或handlerthread是我正在寻找的选项..这样做的任何其他好方法吗？

Answer 1

我有解决方案，但我不知道是否有比这更好的解决方案

至少它有效

在事件中使用Asyntask

 public class Event1 extends AsyncTask<Void,Void,Void>{ @Override protected Void doInBackground(Void... params) { //use your Event 1 methode here return null; } @Override protected void onPostExecute(Void aVoid) { super.onPostExecute(aVoid); //call Event2 Event2 event2=new Event2(); event2.execute(); } } public class Event2 extends AsyncTask<Void,Void,Void>{ @Override protected Void doInBackground(Void... params) { //use your Event 2 methode here return null; } @Override protected void onPostExecute(Void aVoid) { super.onPostExecute(aVoid); //call Event3 Event3 event3=new Event3(); event3.execute(); } } public class Event3 extends AsyncTask<Void,Void,Void>{ @Override protected Void doInBackground(Void... params) { //use your Event3 methode here return null; } @Override protected void onPostExecute(Void aVoid) { super.onPostExecute(aVoid); //everything would come after Event 3 write it here } } 

Answer 2

发现executors.newsinglethreadexecutor（）或handlerthread都可以顺序处理任务。