Android 分页控件制成底部菜单.

其实Android 中的底部菜单， 可以用分页控件很好的实现。   我们先将自定义分页控件做好， 就可以做到顶底两个位置的菜单了。

TabHost只是作为一个容器来存放一些Activity, 所以需要自己另外创建几个新的Activity， 然后由主TabHost加载。

tab_style.xml  

是每个Tab的自定义样式

//分页控件样式
<? 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:paddingLeft = "5dip"
    android:paddingRight = "5dip"
    android:paddingTop = "5dip"
    android:background = "@drawable/tab_bg"
;   >

    < FrameLayout
        android:layout_width = "fill_parent"
        android:layout_height = "fill_parent"
        android:layout_weight = "0.6"
        >
        < TextView
            android:id = "@+id/tab_label"
;            android:layout_width = "fill_parent"
            android:layout_height = "fill_parent"
            android:gravity = "center"
            android:background = "@drawable/tab_title_selector"
;            android:textColor = "#FFFFFF"
            android:textStyle = "bold"
        />
    </ FrameLayout >
</ LinearLayout >

main_tab.xml   是主TabHost布局文件

//TabHost布局
<? xml version = "1.0" encoding = "UTF-8" ?>
< TabHost xmlns:android = "http://schemas.android.com/apk/res/android"
    android:id = "<a href=" http://my.oschina.net/asia"  class = "referer" target = "_blank" >@android</ a > :id/tabhost"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >

    //必须包含下列三个View
    < LinearLayout
        android:orientation = "vertical"
        android:layout_width = "fill_parent"
        android:layout_height = "fill_parent"
        >

< FrameLayout
            android:gravity = "center"
            android:id = "<a href=" http://my.oschina.net/asia"  class = "referer" target = "_blank" >@android</ a > :id/tabcontent"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_weight="1.0"
        />

        //TabWidget位置在FrameLayout之下则显示在低部， 在之上则显示在顶部
        < TabWidget
            android:id = "<a href=" http://my.oschina.net/asia"  class = "referer" target = "_blank" >@android</ a > :id/tabs"
            android:layout_height="wrap_content"
            android:layout_width="fill_parent"
            android:layout_weight="0.0"
            />

    </ LinearLayout >

</ TabHost >

tab_title_selector.xml

是Tab中TextView的按下背景

//选择器，指示Text按下后的背景
<? xml version = "1.0" encoding = "UTF-8" ?>
< selector xmlns:android = "http://schemas.android.com/apk/res/android" >
    < item
        android:state_focused = "true"
        android:drawable = "@drawable/tab_btn_bg_d"
;       />
    < item
        android:state_selected = "true"
        android:drawable = "@drawable/tab_btn_bg_d"
;       />
    < item
        android:state_pressed = "true"
        android:drawable = "@drawable/tab_btn_bg_d"
;       />
</ selector >

Activity类

另外还需要几个Activity类， 普通的Activity类即可, 在此不显示。

public class TabTest extends TabActivity
{
    private TabWidget mTabWidget;
    private TabHost mTabHost;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main_tabs);

        mTabHost = getTabHost();

        //将要显示的Activity载入TabHost控件
        //要显示的Activity由自己自由创建
        setTabIndicator("one", 1, new Intent(this, OneActivity.class));
        setTabIndicator("Two", 2, new Intent(this, TwoActivity.class));
        setTabIndicator("Three", 3, new Intent(this, OneActivity.class));
        setTabIndicator("Four", 4, new Intent(this, TwoActivity.class));
    }

    private void setTabIndicator(String title, int nId, Intent intent)
    {
        //使用指定Tab样式
        View view = LayoutInflater.from(this.mTabHost.getContext())
                    .inflate(R.layout.tab_style, null);

        TextView text   = (TextView)view.findViewById(R.id.tab_label);
        String strId    = String.valueOf(nId);

        text.setText(title);

        //创建一个新Tab
        TabHost.TabSpec localTabSpec = mTabHost.newTabSpec(strId)
                        .setIndicator(view).setContent(intent);
        //加载新Tab
        mTabHost.addTab(localTabSpec);
    }
}

文章出处：  http://blog.csdn.net/knowheart/article/details/7049596