FragmentTabHost的简单应用

FragmentTabHost继承于TabHost组件，把TabHost和 Fragment有效的结合在了一起

参考：http://blog.csdn.net/yangyu20121224/article/details/9016223

package com.example.lenovo.myapplication;import android.os.Bundle;import android.support.v4.app.FragmentActivity;import android.support.v4.app.FragmentTabHost;import android.view.LayoutInflater;import android.view.View;import android.widget.ImageView;import android.widget.TabHost.TabSpec;import android.widget.TextView;/** * @author yangyu *功能描述：自定义TabHost */public class MainActivity extends FragmentActivity{    //定义FragmentTabHost对象    private FragmentTabHost mTabHost;    //定义一个布局    private LayoutInflater layoutInflater;    //定义数组来存放Fragment界面    private Class fragmentArray[] = {FragmentPage1.class,FragmentPage2.class};    //定义数组来存放按钮图片    private int mImageViewArray[] = {R.drawable.tabhome,R.drawable.message};    //Tab选项卡的文字    private String mTextviewArray[] = {"首页", "消息"};    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main_tab_layout);        initView();    }    /**     * 初始化组件     */    private void initView(){        //实例化布局对象        layoutInflater = LayoutInflater.from(this);        //实例化TabHost对象，得到TabHost        mTabHost = (FragmentTabHost)findViewById(android.R.id.tabhost);        mTabHost.setup(this, getSupportFragmentManager(), R.id.realtabcontent);        //得到fragment的个数        int count = fragmentArray.length;            for(int i = 0; i < count; i++){                //为每一个Tab按钮设置图标、文字和内容            TabSpec tabSpec = mTabHost.newTabSpec(mTextviewArray[i]).setIndicator(getTabItemView(i));            //将Tab按钮添加进Tab选项卡中            mTabHost.addTab(tabSpec, fragmentArray[i], null);            //设置Tab按钮的背景            mTabHost.getTabWidget().getChildAt(i).setBackgroundResource(R.drawable.bg);        }    }    /**     * 给Tab按钮设置图标和文字     */    private View getTabItemView(int index){        View view = layoutInflater.inflate(R.layout.tab_item_view, null);        ImageView imageView = (ImageView) view.findViewById(R.id.imageview);        imageView.setImageResource(mImageViewArray[index]);        TextView textView = (TextView) view.findViewById(R.id.textview);        textView.setText(mTextviewArray[index]);        return view;    }}

main_tab_layout

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:orientation="vertical" >    <FrameLayout        android:id="@+id/realtabcontent"        android:layout_width="fill_parent"        android:layout_height="0dip"        android:layout_weight="1" />  /<span style="color:#FF0000;"><strong>/如果把这个内容放置在最下面，Tab就在上面了</strong></span>    <android.support.v4.app.FragmentTabHost        android:id="@android:id/tabhost"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        >        <FrameLayout            android:id="@android:id/tabcontent"            android:layout_width="0dp"            android:layout_height="0dp"            android:layout_weight="0" />    </android.support.v4.app.FragmentTabHost></LinearLayout>

tab_item_view

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:gravity="center"    android:orientation="vertical" >    <ImageView        android:id="@+id/imageview"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:focusable="false"        android:padding="3dp"        android:src="@drawable/tabhome">    </ImageView>    <TextView        android:id="@+id/textview"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="首页"        android:textSize="10sp"        android:textColor="#ffffff">    </TextView></LinearLayout>

fragment_2

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"        android:layout_width="fill_parent"        android:layout_height="fill_parent" >        <ImageView            android:id="@+id/imageview"            android:layout_width="fill_parent"            android:layout_height="fill_parent"            android:scaleType="fitCenter"            android:src="@drawable/hydrangeas" >        </ImageView>    </LinearLayout>

fragment_2

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"        android:layout_width="fill_parent"        android:layout_height="fill_parent" >        <ImageView            android:id="@+id/imageview"            android:layout_width="fill_parent"            android:layout_height="fill_parent"            android:scaleType="fitCenter"            android:src="@drawable/desert" >        </ImageView>    </LinearLayout>