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I am going to show how to use it.

There are 3 things which you should do:

1) you need to run your subactivity via this method

startActivityForResult(Intent i, int requestCode);

2) in parent activity you should override method

onActivityResult(int requestCode, int resultCode, Intent data)

3) in subactivity you need to put result and finish this activity

setResult(int resultCode, Intent data);

finish();

As you see it is simple.

Now I am going to show whole example:

First off all need to create Parent (Main) activity:

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

import android.widget.TextView;

/**

* Parent activty

*

* @author FaYnaSoft Labs

*/

public class Main extends Activity {

protected static final int SUB_ACTIVITY_REQUEST_CODE = 100;

TextView tv;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

tv = (TextView) findViewById(R.id.textId);

tv.setText("TextView element");

Button b = (Button) findViewById(R.id.btnId);

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b.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

Intent i = new Intent(Main.this,

SubActivity.class);startActivityForResult(i, SUB_ACTIVITY_REQUEST_CODE);

}

});

}

@Override

protected void onActivityResult(int requestCode, int resultCode, Intent data) {

super.onActivityResult(requestCode, resultCode, data);

if(requestCode == SUB_ACTIVITY_REQUEST_CODE){

Bundle b = data.getExtras();

tv.setText(b.getString("TEXT"));

}

}

}

As you see here we start activity for result and we override onActivityResult method.

Also simple main layout:

Now we need sub activity:

import android.app.Activity;

import android.content.Intent;

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import android.os.Bundle;

import android.view.View;

import android.widget.Button;

import android.widget.EditText;

public class SubActivity extends Activity {public final static int SUCCESS_RETURN_CODE = 1;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.subactivity);

final EditText editView = (EditText) findViewById(R.id.editId);

editView.setText("SubActivity");

Button button = (Button) findViewById(R.id.btnId);

button.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

Intent intent = new Intent();

Bundle b = new Bundle();

b.putString("TEXT", editView.getText().toString());

intent.putExtras(b);

setResult(SUCCESS_RETURN_CODE, intent);

finish();

}

});}

}

Here we put result for main activity.

Also layout for subactivity

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As you see it is very easy to get data from sub activity.