利用actionbar同样也可以轻松的实现tab导航的效果，配合使用fragment实现切换不同view的功能。

若想使用这个功能，1）设置actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS)，使actionbar使用tab导航功能。2）调用actionbar的addTab()方法，添加多个tab标签，并为每个tab标签添加时间监听器。

MyFragment.java

package com.app.main;import android.annotation.SuppressLint;import android.app.Fragment;import android.content.Context;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.view.ViewGroup.LayoutParams;import android.widget.TextView;@SuppressLint("NewApi")public class MyFragment extends Fragment {	@Override	public View onCreateView(LayoutInflater inflater, ViewGroup container,			Bundle savedInstanceState) {		Context context = this.getActivity();		TextView tv = new TextView(context);		Bundle arc = this.getArguments();		int tabs=arc.getInt("key");				tv.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,				LayoutParams.WRAP_CONTENT));		tv.setText("hello actionbar "+tabs);		return tv;	}}

Main.java

package com.app.main;import android.app.ActionBar;import android.app.ActionBar.Tab;import android.app.Activity;import android.app.FragmentTransaction;import android.os.Bundle;public class Main extends Activity implements ActionBar.TabListener {	ActionBar actionBar = null;	@Override	protected void onCreate(Bundle savedInstanceState) {		super.onCreate(savedInstanceState);		setContentView(R.layout.main);		actionBar = this.getActionBar();		actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);		actionBar.addTab(actionBar.newTab().setText("tab1")				.setTabListener(this));		actionBar.addTab(actionBar.newTab().setText("tab2")				.setTabListener(this));		actionBar.addTab(actionBar.newTab().setText("tab3")				.setTabListener(this));	}	@Override	public void onTabReselected(Tab tab, FragmentTransaction ft) {	}	@Override	public void onTabSelected(Tab tab, FragmentTransaction ft) {		MyFragment frag = new MyFragment();		int index = tab.getPosition() + 1;		Bundle bundle = new Bundle();		bundle.putInt("key", index);		frag.setArguments(bundle);		FragmentTransaction action = Main.this.getFragmentManager()				.beginTransaction();		action.replace(R.id.container, frag);		action.commit();	}	@Override	public void onTabUnselected(Tab tab, FragmentTransaction ft) {	}}