FragmentTabHost实现Fragment的tab效果

TabHost效果

 

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
    @SuppressWarnings("rawtypes")
    private Class fragmentArray[] = {InspectFragment.class,ExecuteFragment.class,TaskFragment.class,ExitFragment.class};
    //定义数组来存放按钮图片
    private int mImageViewArray[] = {R.drawable.tab_more_btn,R.drawable.tab_home_btn,R.drawable.tab_selfinfo_btn,R.drawable.tab_message_btn};

    public void onCreate(Bundle savedInstanceState) {
        this.requestWindowFeature(Window.FEATURE_NO_TITLE);
        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(i+"").setIndicator(getTabItemView(i));
            //将Tab按钮添加进Tab选项卡中
            mTabHost.addTab(tabSpec, fragmentArray[i], null);
        }
    }

    /**
     * 给Tab按钮设置图标和文字
     */
    private View getTabItemView(int index){
        View view = layoutInflater.inflate(R.layout.main_tab_item, null);
        TextView tab_item_view = (TextView) view.findViewById(R.id.tab_item_view);
        tab_item_view.setBackgroundResource(mImageViewArray[index]);
        return view;
    }
}

 

注意在Fragment导包的时候要导import Android.support.v4.app.Fragment;

 

图标用背景选择器:

 

<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:drawable="@drawable/xpd" android:state_selected="true"/>
    <item android:drawable="@drawable/pd"/>

</selector>

 

布局文件

<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="50dp"
        android:layout_weight="0" />
</android.support.v4.app.FragmentTabHost>

<FrameLayout
    android:id="@+id/realtabcontent"
    android:layout_width="fill_parent"
    android:layout_height="0dip"
    android:layout_weight="1" />