Everything is in the title.
On the official documentations it is stated that Note that services, like other application objects, run in the main thread of their hosting process
and AsyncTask only works if it is executed in the UIThread.
So is it possible to use AsyncTask in a Service class?
I am trying to do so but I'm always getting the same error
05-01 18:09:25.487: ERROR/JavaBinder(270): java.lang.ExceptionInInitializerError
...
05-01 18:09:25.487: ERROR/JavaBinder(270): Caused by: java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()
Am I doing something wrong or is this just impossible ?
Here is the code of my Service class
package com.eip.core;
import android.app.Service;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.IBinder;
import android.os.RemoteException;
import android.util.Log;
public class NetworkService extends Service {
private final INetwork.Stub mBinder = new INetwork.Stub() {
@Override
public int doConnect(String addr, int port) throws RemoteException {
new ConnectTask().execute("test42");
return 0;
}
};
@Override
public IBinder onBind(Intent arg0) {
return mBinder;
}
private class ConnectTask extends AsyncTask<String, Void, Void> {
@Override
protected void onPreExecute() {
super.onPreExecute();
Log.i("OnPreExecute()", "");
}
@Override
protected Void doInBackground(String... arg0) {
Log.i("doInBackground()", "");
return null;
}
@Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
Log.i("OnPostExecute()", "");
}
}
}
See Question&Answers more detail:
os 与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…