package com.example.tabhostmove;import android.app.Activity;import android.app.TabActivity;import android.content.Intent;import android.os.Bundle;import android.util.Log;import android.view.GestureDetector;import android.view.Menu;import android.view.MenuItem;import android.view.MotionEvent;import android.widget.TabHost;import android.widget.TabHost.TabSpec;public class MainActivity extends TabActivity {    private TabHost tabHost;        @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        init();    }        private void init() {        // TODO Auto-generated method stub                tabHost = getTabHost();        // 页面1        TabSpec spec1 = tabHost.newTabSpec("1");        spec1.setIndicator("1", getResources().getDrawable(R.drawable.ic_launcher));        Intent intent1 = new Intent(this, Activity1.class);        spec1.setContent(intent1);        // 页面2        TabSpec spec2 = tabHost.newTabSpec("2");        spec2.setIndicator("2", getResources().getDrawable(R.drawable.ic_launcher));        Intent intent2 = new Intent(this, Activity2.class);        spec2.setContent(intent2);        // 页面3        TabSpec spec3 = tabHost.newTabSpec("3");        spec3.setIndicator("3", getResources().getDrawable(R.drawable.ic_launcher));        Intent intent3 = new Intent(this, Activity3.class);        spec3.setContent(intent3);                // 页面4        TabSpec spec4 = tabHost.newTabSpec("4");        spec4.setIndicator("4", getResources().getDrawable(R.drawable.ic_launcher));        Intent intent4 = new Intent(this, Activity4.class);        spec4.setContent(intent4);        tabHost.addTab(spec1);        tabHost.addTab(spec2);        tabHost.addTab(spec3);        tabHost.addTab(spec4);            }    private GestureDetector detector = new GestureDetector(new GestureDetector.SimpleOnGestureListener() {        @Override        public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {            if ((e2.getRawX() - e1.getRawX()) > 80) {                showNext();                return true;            }            if ((e1.getRawX() - e2.getRawX()) > 80) {                showPre();                return true;            }            return super.onFling(e1, e2, velocityX, velocityY);        }    });    @Override    public boolean onTouchEvent(MotionEvent event) {        detector.onTouchEvent(event);        return super.onTouchEvent(event);    }    /**     * 当前页面索引     */    int i = 0;    /**     * 显示下一个页面     */    protected void showNext() {        // 三元表达式控制3个页面的循环.        //tabHost.setCurrentTab(i = i == 3 ? i = 0 : ++i);        //Log.i("kennet", i + "");        //四个页面的下一个循环        switch(i)        {        case 0:            i++;            tabHost.setCurrentTab(i);            break;        case 1:            i++;            tabHost.setCurrentTab(i);            break;        case 2:            i++;            tabHost.setCurrentTab(i);            break;        case 3:            i=0;            tabHost.setCurrentTab(i);            break;        }    }    /**     * 显示前一个页面     */    protected void showPre() {        // 三元表达式控制3个页面的循环.        //tabHost.setCurrentTab(i = i == 0 ? i = 3 : --i);        //四个页面的上一个循环        switch(i)        {        case 0:            i=3;            tabHost.setCurrentTab(i);            break;        case 1:            i--;            tabHost.setCurrentTab(i);            break;        case 2:            i--;            tabHost.setCurrentTab(i);            break;        case 3:            i--;            tabHost.setCurrentTab(i);            break;        }    }    @Override    public boolean onCreateOptionsMenu(Menu menu) {        // Inflate the menu; this adds items to the action bar if it is present.        getMenuInflater().inflate(R.menu.main, menu);        return true;    }    @Override    public boolean onOptionsItemSelected(MenuItem item) {        // Handle action bar item clicks here. The action bar will        // automatically handle clicks on the Home/Up button, so long        // as you specify a parent activity in AndroidManifest. .        int id = item.getItemId();        if (id == R.id.action_settings) {            return true;        }        return super.onOptionsItemSelected(item);    }}

<TabHost  ns:android="http://schemas.android.com/apk/res/android"     ns:tools="http://schemas.android.com/tools"    android:id="@android:id/tabhost"    android:layout_width="match_parent"    android:layout_height="match_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" />        < Layout            android:id="@android:id/tabcontent"            android:layout_width="fill_parent"            android:layout_height="wrap_content"            android:layout_weight="1" >        </ Layout>    </LinearLayout></TabHost>