67、Fragment实现Tab

<LinearLayout
  。。。。。。。。。。
    <FrameLayout
        android:id="@+id/id_content"
        android:layout_width="fill_parent"
        android:layout_height="0dp"
        android:layout_weight="1" />
    <include layout="@layout/bottom" />
</LinearLayout>

 package com.imooc.tab02;

 import android.os.Bundle;
 import android.support.v4.app.Fragment;
 import android.support.v4.app.FragmentActivity;
 import android.support.v4.app.FragmentManager;
 import android.support.v4.app.FragmentTransaction;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.Window;
 import android.widget.ImageButton;
 import android.widget.LinearLayout;

 public class MainActivity extends FragmentActivity implements OnClickListener {
     private LinearLayout mTabWeixin;
     private LinearLayout mTabFrd;
     private LinearLayout mTabAddress;
     private LinearLayout mTabSettings;

     private ImageButton mImgWeixin;
     private ImageButton mImgFrd;
     private ImageButton mImgAddress;
     private ImageButton mImgSettings;

     private Fragment mTab01;
     private Fragment mTab02;
     private Fragment mTab03;
     private Fragment mTab04;

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);

         requestWindowFeature(Window.FEATURE_NO_TITLE);
         setContentView(R.layout.activity_main);

         initView();
         initEvent();
         setSelect(0);
     }

     private void initEvent() {
         mTabWeixin.setOnClickListener(this);
         mTabFrd.setOnClickListener(this);
         mTabAddress.setOnClickListener(this);
         mTabSettings.setOnClickListener(this);
     }

     private void initView() {
         mTabWeixin = (LinearLayout) findViewById(R.id.id_tab_weixin);
         mTabFrd = (LinearLayout) findViewById(R.id.id_tab_frd);
         mTabAddress = (LinearLayout) findViewById(R.id.id_tab_address);
         mTabSettings = (LinearLayout) findViewById(R.id.id_tab_settings);

         mImgWeixin = (ImageButton) findViewById(R.id.id_tab_weixin_img);
         mImgFrd = (ImageButton) findViewById(R.id.id_tab_frd_img);
         mImgAddress = (ImageButton) findViewById(R.id.id_tab_address_img);
         mImgSettings = (ImageButton) findViewById(R.id.id_tab_settings_img);
     }

     private void setSelect(int i) {
         FragmentManager fm = getSupportFragmentManager();
         FragmentTransaction transaction = fm.beginTransaction();
         hideFragment(transaction);
         // 把图片设置为亮的
         // 设置内容区域
         switch (i) {
         case 0:
             if (mTab01 == null) {
                 mTab01 = new WeixinFragment();
                 transaction.add(R.id.id_content, mTab01);
             } else {
                 transaction.show(mTab01);
             }
             mImgWeixin.setImageResource(R.drawable.tab_weixin_pressed);
             break;
         case 1:
             if (mTab02 == null) {
                 mTab02 = new FrdFragment();
                 transaction.add(R.id.id_content, mTab02);
             } else {
                 transaction.show(mTab02);
             }
             mImgFrd.setImageResource(R.drawable.tab_find_frd_pressed);
             break;
         case 2:
             if (mTab03 == null) {
                 mTab03 = new AddressFragment();
                 transaction.add(R.id.id_content, mTab03);
             } else {
                 transaction.show(mTab03);
             }
             mImgAddress.setImageResource(R.drawable.tab_address_pressed);
             break;
         case 3:
             if (mTab04 == null) {
                 mTab04 = new SettingFragment();
                 transaction.add(R.id.id_content, mTab04);
             } else {
                 transaction.show(mTab04);
             }
             mImgSettings.setImageResource(R.drawable.tab_settings_pressed);
             break;

         default:
             break;
         }

         transaction.commit();
     }

     private void hideFragment(FragmentTransaction transaction) {
         if (mTab01 != null) {
             transaction.hide(mTab01);
         }
         if (mTab02 != null) {
             transaction.hide(mTab02);
         }
         if (mTab03 != null) {
             transaction.hide(mTab03);
         }
         if (mTab04 != null) {
             transaction.hide(mTab04);
         }
     }

     @Override
     public void onClick(View v) {
         resetImgs();   // 切换图片至暗色
         switch (v.getId()) {
         case R.id.id_tab_weixin:
             setSelect(0);
             break;
         case R.id.id_tab_frd:
             setSelect(1);
             break;
         case R.id.id_tab_address:
             setSelect(2);
             break;
         case R.id.id_tab_settings:
             setSelect(3);
             break;

         default:
             break;
         }
     }

     /**
      * 切换图片至暗色
      */
     private void resetImgs() {
         mImgWeixin.setImageResource(R.drawable.tab_weixin_normal);
         mImgFrd.setImageResource(R.drawable.tab_find_frd_normal);
         mImgAddress.setImageResource(R.drawable.tab_address_normal);
         mImgSettings.setImageResource(R.drawable.tab_settings_normal);
     }

 }

DEMO下载地址：http://download.csdn.net/detail/androidsj/9354303