Sending data from service to activity

Question

I am having issue when sending data from Service to Activity through Notification , I click a Notification an Activity get invoked but when i try to add some parameters thro

Answer 1

You have to modify the Manifest file as well.

Here is the example that works:

These variables and methods are members of Service class:

public static final String MOVEMENT_UPDATE = "com.client.gaitlink.AccelerationService.action.MOVEMENT_UPDATE";
    public static final String ACCELERATION_X = "com.client.gaitlink.AccelerationService.ACCELERATION_X";
    public static final String ACCELERATION_Y = "com.client.gaitlink.AccelerationService.ACCELERATION_Y";
    public static final String ACCELERATION_Z = "com.client.gaitlink.AccelerationService.ACCELERATION_Z";

private void announceAccelerationChanges()//this method sends broadcast messages
    {
        Intent intent = new Intent(MOVEMENT_UPDATE);
        intent.putExtra(ACCELERATION_X, accelerationX);
        intent.putExtra(ACCELERATION_Y, accelerationY);
        intent.putExtra(ACCELERATION_Z, accelerationZ);

        sendBroadcast(intent);
    }

And this are the methods from Main activity:

You have to register receiver in the onResume method:

    @Override
    public void onResume()
    {   

        IntentFilter movementFilter;
        movementFilter = new IntentFilter(AccelerationService.MOVEMENT_UPDATE);
        accelerationReceiver = new AccelerationServiceReceiver();
        registerReceiver(accelerationReceiver, movementFilter);


        startAccelerationService();

        super.onResume();
    }

    private void startAccelerationService()
    {
        startService(new Intent(this, AccelerationService.class));
    }

    public class AccelerationServiceReceiver extends BroadcastReceiver
    {
      @Override
        public void onReceive(Context context, Intent intent)//this method receives broadcast messages. Be sure to modify AndroidManifest.xml file in order to enable message receiving
        {
            accelerationX = intent.getDoubleExtra(AccelerationService.ACCELERATION_X, 0);
            accelerationY = intent.getDoubleExtra(AccelerationService.ACCELERATION_Y, 0);
            accelerationZ = intent.getDoubleExtra(AccelerationService.ACCELERATION_Z, 0);

            announceSession();

            updateGUI();
        }
    }

This is the part of AndroidManifest.xml file that has to be set in order to receive broadcast messages: