Pass data from Service to Activity

Refer to the last post Create our own Service and BroadcastReceiver, data can be passed from Service using intent.putExtra(); on the other hand, the data passed can be retrieved using getIntExtra() in BroadcastReceiver.



Modify from the last post Create our own Service and BroadcastReceiver.
AndroidServiceTestActivity.java

package com.AndroidServiceTest;

import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.widget.Toast;

public class AndroidServiceTestActivity extends Activity {

MyReceiver myReceiver;

  /** Called when the activity is first created. */
  @Override
  public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.main);

  }

@Override
protected void onStart() {
 // TODO Auto-generated method stub

      //Register BroadcastReceiver
      //to receive event from our service
      myReceiver = new MyReceiver();
      IntentFilter intentFilter = new IntentFilter();
      intentFilter.addAction(MyService.MY_ACTION);
      registerReceiver(myReceiver, intentFilter);
    
      //Start our own service
      Intent intent = new Intent(AndroidServiceTestActivity.this,
        com.AndroidServiceTest.MyService.class);
      startService(intent);

 super.onStart();
}

@Override
protected void onStop() {
 // TODO Auto-generated method stub
 unregisterReceiver(myReceiver);
 super.onStop();
}

private class MyReceiver extends BroadcastReceiver{

 @Override
 public void onReceive(Context arg0, Intent arg1) {
  // TODO Auto-generated method stub
 
  int datapassed = arg1.getIntExtra("DATAPASSED", 0);
 
  Toast.makeText(AndroidServiceTestActivity.this,
    "Triggered by Service!\n"
    + "Data passed: " + String.valueOf(datapassed),
    Toast.LENGTH_LONG).show();
 
 }

}
}

MyService.java

package com.AndroidServiceTest;

import android.app.Service;
import android.content.Intent;
import android.os.IBinder;

public class MyService extends Service {

final static String MY_ACTION = "MY_ACTION";

@Override
public IBinder onBind(Intent arg0) {
 // TODO Auto-generated method stub
 return null;
}

@Override
public int onStartCommand(Intent intent, int flags, int startId) {
 // TODO Auto-generated method stub

 MyThread myThread = new MyThread();
 myThread.start();

 return super.onStartCommand(intent, flags, startId);
}

public class MyThread extends Thread{

 @Override
 public void run() {
  // TODO Auto-generated method stub
  for(int i=0; i<10; i++){
   try {
    Thread.sleep(5000);
    Intent intent = new Intent();
       intent.setAction(MY_ACTION);
     
       intent.putExtra("DATAPASSED", i);
     
       sendBroadcast(intent);
   } catch (InterruptedException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   }
  }
  stopSelf();
 }

}

}

Note: Modify AndroidManifest.xml to add service ".MyService", refer to the post Create our own Service and BroadcastReceiver.

Next:
- Pass data from Activity to Service via Intent in startService()