Step 1 :- Create New Android Project.

Step 2 :- Add Google-play-services_lib to your project.

Step 3 :- Open AndroidManifest.xml file.

<!--?xml version="1.0" encoding="utf-8"?-->
package="com.mapv2.demo"
android:versionCode="1"
android:versionName="1.0" &gt;

&lt;uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="16" /&gt;

&lt;permission
android:name="com.mapv2.demo.permission.MAPS_RECEIVE"
android:protectionLevel="signature"/&gt;

&nbsp;

&nbsp;

&lt;uses-feature
android:glEsVersion="0x00020000"
android:required="true"/&gt;

&lt;application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" &gt;
&lt;activity
android:name="com.mapv2.demo.MainActivity"
android:label="@string/app_name" &gt;



&lt;meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="AIzaSyCmX7SLVHXxU9pSqb2QbAOvdnjAGUulOrk"/&gt;

&nbsp;

Step 4 :- Open activity_main.xml.

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

<RadioGroup
android:id="@+id/rg_views"
android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
>

<RadioButton
android:id="@+id/rb_normal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/str_rb_normal"
android:checked="true"
/>

<RadioButton
android:id="@+id/rb_satellite"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/str_rb_satellite"
/>

<RadioButton
android:id="@+id/rb_terrain"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/str_rb_terrain"
/>

 

android:id="@+id/map"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="@id/rg_views"
class="com.google.android.gms.maps.SupportMapFragment"/>

Step 5 :- Open MainActivity.java

package com.mapv2.demo;

import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.view.Menu;
import android.widget.RadioGroup;
import android.widget.Toast;
import android.widget.RadioGroup.OnCheckedChangeListener;

import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;

public class MainActivity extends FragmentActivity {

GoogleMap googleMap;

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

SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
googleMap = mapFragment.getMap();

googleMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);

RadioGroup rgViews = (RadioGroup) findViewById(R.id.rg_views);

rgViews.setOnCheckedChangeListener(new OnCheckedChangeListener() {

@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
if(checkedId == R.id.rb_normal){
googleMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
}else if(checkedId == R.id.rb_satellite){
googleMap.setMapType(GoogleMap.MAP_TYPE_SATELLITE);
}else if(checkedId == R.id.rb_terrain){
googleMap.setMapType(GoogleMap.MAP_TYPE_TERRAIN);
}

}
});

}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}

}

Step 6 :- Run Code.