Start Activiy For Result in Android

activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity" >

    <Button
        android:id="@+id/chossenamebutton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="42dp"
        android:text="ChooseName" />

    <Button
        android:id="@+id/phnumberbutton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/chossenamebutton"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="45dp"
        android:text="choose phnumber" />

</RelativeLayout>

MainActivity.java

package com.blogspot.kantapp.startactiviyforresultinandroid;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class MainActivity extends Activity {
    Button chooseNameBtn, choosePhnumberBtn;
    String name, number;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        chooseNameBtn = (Button) findViewById(R.id.chossenamebutton);
        choosePhnumberBtn = (Button) findViewById(R.id.phnumberbutton);

        choosePhnumberBtn.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                Intent in = new Intent(getApplicationContext(), PhNumbers.class);
                startActivityForResult(in, 2);
            }
        });

        chooseNameBtn.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                Intent in = new Intent(getApplicationContext(), Names.class);

                startActivityForResult(in, 1);
            }
        });
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        // TODO Auto-generated method stub

        if (requestCode == 1) {
            if (resultCode == RESULT_OK) {
                name = data.getStringExtra("myname");
                chooseNameBtn.setText(name);
            }
        } else if (requestCode == 2) {
            if (resultCode == RESULT_OK) {
                number = data.getStringExtra("phnumber");
                choosePhnumberBtn.setText(number);
            }
        }




        super.onActivityResult(requestCode, resultCode, data);
    }

}

names.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <RadioGroup
        android:id="@+id/radioGroup1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" >

        <RadioButton
            android:id="@+id/radio0"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Android" />

        <RadioButton
            android:id="@+id/radio1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="iphone" />

        <RadioButton
            android:id="@+id/radio2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="BlackBerry" />

        <RadioButton
            android:id="@+id/radio3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Symbian" />

        <RadioButton
            android:id="@+id/radio4"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Bada" />
    </RadioGroup>

</LinearLayout>

Names.java

package com.blogspot.kantapp.startactiviyforresultinandroid;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.RadioGroup.OnCheckedChangeListener;

public class Names extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);

        setContentView(R.layout.names);

        final RadioGroup rg = (RadioGroup) findViewById(R.id.radioGroup1);

        rg.setOnCheckedChangeListener(new OnCheckedChangeListener() {

            @Override
            public void onCheckedChanged(RadioGroup arg0, int arg1) {
                // TODO Auto-generated method stub
                int id = rg.getCheckedRadioButtonId();

                RadioButton rb = (RadioButton) findViewById(id);

                String name = rb.getText().toString();

                Intent in = new Intent();

                in.putExtra("myname", name);

                setResult(RESULT_OK, in);

                finish();

            }
        });
    }
}

phonenumbers.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <RadioGroup
        android:id="@+id/phradioGroup"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" >

        <RadioButton
            android:id="@+id/radio0"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="12345" />

        <RadioButton
            android:id="@+id/radio1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="12346" />

        <RadioButton
            android:id="@+id/radio2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="12347" />

        <RadioButton
            android:id="@+id/radio3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="12348" />

        <RadioButton
            android:id="@+id/radio4"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="12349" />
    </RadioGroup>

</LinearLayout>

PhNumbers.java

package com.blogspot.kantapp.startactiviyforresultinandroid;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.RadioGroup.OnCheckedChangeListener;

public class PhNumbers extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);

        setContentView(R.layout.phonenumbers);

        final RadioGroup rg = (RadioGroup)findViewById(R.id.phradioGroup);

        rg.setOnCheckedChangeListener(new OnCheckedChangeListener() {

            @Override
            public void onCheckedChanged(RadioGroup arg0, int arg1) {
                // TODO Auto-generated method stub
                int id = rg.getCheckedRadioButtonId();

                RadioButton rb = (RadioButton)findViewById(id);

                String number = rb.getText().toString();

                Intent in = new Intent();

                in.putExtra("phnumber", number);

                setResult(RESULT_OK, in);

                finish();
            }
        });
    }

}

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.blogspot.kantapp.startactiviyforresultinandroid">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name=".Names"/>
        <activity android:name=".PhNumbers"/>
    </application>

</manifest>