Main Activity:

package com.xont.controller;

import com.xont.controller.R;
import com.xont.controller.admin.SettingActivityGroup;
import com.xont.controller.sales.SalesActivityGroup;
import android.app.TabActivity;
import android.content.Intent;
import android.content.res.Resources;
import android.os.Bundle;
import android.widget.TabHost;
import android.widget.TabHost.TabSpec;


public class MainActivity extends TabActivity {
    int selectedTab;
    TabHost tabHost ;

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.tabview);

        TabHost t = getTabHost();
        tabHost = (TabHost)findViewById(android.R.id.tabhost);
        Resources res = getResources();
        TabSpec firstTabSpec = tabHost.newTabSpec("tid1");
        TabSpec secondTabSpec = tabHost.newTabSpec("tid1");
        TabSpec thirdTabSpec = tabHost.newTabSpec("tid1");
        TabSpec fouthTabSpec = tabHost.newTabSpec("tid1");
        /** TabSpec setIndicator() is used to set name for the tab. */
        /** TabSpec setContent() is used to set content for a particular tab. */
        firstTabSpec.setIndicator("Sales",res.getDrawable(R.drawable.ic_tab_artists_grey)).setContent(new Intent(this,SalesActivityGroup.class));
        secondTabSpec.setIndicator("Admin",res.getDrawable(R.drawable.admin)).setContent(new Intent(this,SettingActivityGroup.class));
        thirdTabSpec.setIndicator("Setting",res.getDrawable(R.drawable.ic_tab_artists_grey)).setContent(new Intent(this,SettingActivityGroup.class));
        fouthTabSpec.setIndicator("Inquiry",res.getDrawable(R.drawable.ic_tab_artists_grey)).setContent(new Intent(this,SettingActivityGroup.class));

        tabHost.addTab(firstTabSpec);
        tabHost.addTab(secondTabSpec);
        tabHost.addTab(thirdTabSpec);
        tabHost.addTab(fouthTabSpec);
        tabHost.setCurrentTab(0);
        tabHost.setMinimumHeight(18);
        tabHost.setFadingEdgeLength(5);

    }

    public void onTabChanged(String arg0) {
            selectedTab = tabHost.getCurrentTab();

    }




}


And My salesActivityGroup:


package com.xont.controller.sales;

import java.util.ArrayList;

import android.app.Activity;
import android.app.ActivityGroup;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Toast;

public class SalesActivityGroup extends ActivityGroup {

    public static SalesActivityGroup group;
    private ArrayList<View> history;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        this.history = new ArrayList<View>();
        group = this;

        View view = getLocalActivityManager().startActivity("Sales",
                new Intent(this, SalesRouteActivity.class).addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET ))
                .getDecorView();

        replaceView(view);

    }

    public void replaceView(View v) {
        history.add(v);
        setContentView(v);

    }

    public void back() {
        if (history.size() > 0) {
            history.remove(history.size() - 1);
            if (history.size() > 0) {
                setContentView(history.get(history.size() - 1));
            } else {
                finish();
            }
        } else {
            finish();
        }
    }

    public void backToFirst() {
        int size = history.size();
        while (size > 1) {
            history.remove(size - 1);
            size = history.size();
        }
        setContentView(history.get(0));
    }

    @Override
    public void onBackPressed() {
        SalesActivityGroup.group.back();
        return;
    }


    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    //  super.onActivityResult(requestCode, resultCode, data);
        Log.i("****" , "requestCode" + requestCode);
        Bundle bundle = data.getExtras();
        String roteCode = bundle.getString("RouteCode");
        Intent intent = new Intent(SalesActivityGroup.this,ListRetailerActivity.class);
        bundle.putString("RouteCode", roteCode);
        intent.putExtras(bundle);
        View view = SalesActivityGroup.group.getLocalActivityManager()
                .startActivity("",intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)).getDecorView();
        SalesActivityGroup.group.replaceView(view);
        }


}


This is my calling part in SalesRouteActivity

 Intent intent = new Intent(SalesRouteActivity.this, ListRetailerActivity.class);
            Bundle bundle = new Bundle();
            bundle.putString("RouteName", keyword);
            intent.putExtras(bundle);
            View view = SalesActivityGroup.group.getLocalActivityManager().startActivity("", intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)).getDecorView();
            SalesActivityGroup.group.replaceView(view);