Change Tabbar Text (title) dynamically in Android - a simple example

 
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.TabHost;
import android.widget.TabHost.TabSpec;
import android.widget.TabWidget;
import android.widget.TextView;
import android.app.TabActivity;
import android.content.Intent;


public class MainActivity extends TabActivity {

 TabWidget tw;
 TabHost tabHost;
 @Override  
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  
  /** TabHost will have Tabs */
         tabHost = (TabHost)findViewById(android.R.id.tabhost);
        
        TabSpec firstTabSpec = tabHost.newTabSpec("tab_id1");
        TabSpec secondTabSpec = tabHost.newTabSpec("tab_id2");
        TabSpec thirdTabSpec = tabHost.newTabSpec("tab_id3");
        
        firstTabSpec.setIndicator("First").setContent(new Intent(this,Tab1.class));
        secondTabSpec.setIndicator("Second ").setContent(new Intent(this,Tab2.class));
        thirdTabSpec.setIndicator("Third").setContent(new Intent(this,Tab3.class));
        
        
        tabHost.addTab(firstTabSpec);
        tabHost.addTab(secondTabSpec);
        tabHost.addTab(thirdTabSpec);
        
        tw = getTabWidget();
        View tab1View = tw.getChildAt(0);
        tab1View.setId(1);
 
        View tab2View = tw.getChildAt(1);
        tab2View.setId(2);
    
        View tab3View = tw.getChildAt(2);
        tab3View.setId(3);
 
        tab1View.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                ((TextView)tabHost.getTabWidget().getChildAt(v.getId()-1).findViewById(android.R.id.title)).setText("my Tab " + v.getId());
            }
        });
 
        tab2View.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                ((TextView)tabHost.getTabWidget().getChildAt(v.getId()-1).findViewById(android.R.id.title)).setText("my Tab " + v.getId());
            }
        });
 
        tab3View.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                ((TextView)tabHost.getTabWidget().getChildAt(v.getId()-1).findViewById(android.R.id.title)).setText("my Tab " + v.getId());
            }
        });
 
 } }