how create tabs in android application

use eclipse to create a project which contain tabs.

*select new project ,then select new android application project 

*chose the api level  i have taken 2.2

now in the layout folder go to mainpage.xml and paste this code 

<?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"

  

 >

<TabHost

    android:id="@android:id/tabhost"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent" >

    <LinearLayout

        android:layout_width="fill_parent"

        android:layout_height="fill_parent"

        android:orientation="vertical" >

        

   

        

   

        <TabWidget

            android:id="@android:id/tabs"

            android:layout_width="fill_parent"

            android:layout_height="wrap_content" >

        </TabWidget>

        <FrameLayout

            android:id="@android:id/tabcontent"

            android:layout_width="match_parent"

            android:layout_height="match_parent" >

            <LinearLayout

                android:id="@+id/tab1"

                android:layout_width="match_parent"

                android:layout_height="match_parent" >

            </LinearLayout>

            <LinearLayout

                android:id="@+id/tab2"

                android:layout_width="match_parent"

                android:layout_height="match_parent" >

            </LinearLayout>

            <LinearLayout

                android:id="@+id/tab3"

                android:layout_width="match_parent"

                android:layout_height="match_parent" >

            </LinearLayout>

        </FrameLayout>

    </LinearLayout>

</TabHost>

</LinearLayout>

now in order  to create the tabs according to our requirement we can write java code given below

import android.content.Intent;

import android.content.res.Resources;

import android.graphics.Color;

import android.os.Bundle;

import android.util.Log;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.TabHost;

import android.widget.TextView;

import android.widget.TabHost.OnTabChangeListener;

public class TabActivity extends  TabActivity 

{

public static TabActivity context;

 

public void onCreate(Bundle savedInstanceState) {

       super.onCreate(savedInstanceState);

       setContentView(R.layout.mainpage);

       

       

          context=this;

       final TabHost tabHost = getTabHost();   

       Resources res = getResources();

   

  

     

     tabHost.addTab(tabHost.newTabSpec("tab1")

             .setIndicator("My Contact")

             .setContent(new Intent(this,TabGroup1Activity.class)));

     

     tabHost.addTab(tabHost.newTabSpec("tab2")

             .setIndicator("My Profile")

             .setContent(new Intent(this, TabGroup2Activity.class)));

     

     

     tabHost.addTab(tabHost.newTabSpec("tab2")

             .setIndicator("Settings")

             .setContent(new Intent(this, TabGroup3Activity.class)));

     

     

     tabHost.setCurrentTab(0); 

     for (int i = 0; i < tabHost.getTabWidget().getChildCount(); i++) {

           tabHost.getTabWidget().getChildAt(i).getLayoutParams().height /=1.5;

          

       }

     

     

     for(int i=0;i<tabHost.getTabWidget().getChildCount();i++) 

{ 

int j=tabHost.getTabWidget().getChildCount();

Log.e("child countttttttttttttttttttttt ", Integer.toString(j));

TextView tv = (TextView) tabHost.getTabWidget().getChildAt(i).findViewById(android.R.id.title);

tv.setTextColor(Color.BLACK);

tv.setTypeface(null,1);

tv.setTextSize(12);

 

//calling the method when the user change the tab

tabHost.setOnTabChangedListener(new OnTabChangeListener() {

// int c=0;

// @Override

public void onTabChanged(String tabId) {

setTabColor(tabHost);

}

});

}

        setTabColor(tabHost);

        

}

public static void setTabColor(TabHost tabHost) {

for(int i=0;i<tabHost.getTabWidget().getChildCount();i++)

{

try{

//  unselected tab will be displayed drawable background

tabHost.getTabWidget().getChildAt(i).setBackgroundResource(R.drawable.header);

TextView tv = (TextView) tabHost.getTabWidget().getChildAt(i).findViewById(android.R.id.title); //Unselected Tabs

           //tv.setTextColor(Color.parseColor("#909598"));

           tv.setTextColor(Color.parseColor("#7c8286"));

}

catch (NullPointerException e) {

// TODO: handle exception

e.printStackTrace();

}

}

try{

//user selected tab will be displayed selected color

tabHost.getTabWidget().getChildAt(tabHost.getCurrentTab()).setBackgroundColor(Color.parseColor( "#1082ef"));

//tabHost.getTabWidget().getChildAt(tabHost.getCurrentTab()).setBackgroundColor(R.drawable.hover);

TextView tv = (TextView) tabHost.getCurrentTabView().findViewById(android.R.id.title); //for Selected Tab

       tv.setTextColor(Color.parseColor("#ffffff"));

}

catch (NullPointerException e) {

// TODO: handle exception

e.printStackTrace();

}

catch (Exception e) {

// TODO: handle exception

e.printStackTrace();

}

       

}

   }