android自定义TabWidget样式

先看看效果图吧，个人觉得图标丑了点，不过还行，自己用PS做的

下面是全部代码和流程，一定要按流程顺序来，不然错误！

1.tabhost.xml

<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@android:id/tabhost"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content" >

    <RelativeLayout
        android:id="@+id/relativelayout"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent" >

        <FrameLayout
            android:id="@android:id/tabcontent"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content" >

            <LinearLayout
                android:id="@+id/tab1"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:orientation="vertical" >
            </LinearLayout>

            <LinearLayout
                android:id="@+id/tab2"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:orientation="vertical" >
            </LinearLayout>

            <LinearLayout
                android:id="@+id/tab3"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:orientation="vertical" >
            </LinearLayout>

            <LinearLayout
                android:id="@+id/tab4"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:orientation="vertical" >
            </LinearLayout>

            <LinearLayout
                android:id="@+id/tab5"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:orientation="vertical" >
            </LinearLayout>
        </FrameLayout>

        <TabWidget
            android:id="@android:id/tabs"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            android:background="@drawable/tabwidget_bj" >
        </TabWidget>
    </RelativeLayout>

</TabHost>

2.tab_item_view.xml

<?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:orientation="vertical" >

    <ImageView
        android:id="@+id/imageview"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal|top"
        android:padding="3dp" />

    <TextView
        android:id="@+id/textview"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal|bottom"
        android:textColor="#fff"
        android:textSize="13sp"
        style="bold"/>

</LinearLayout>

3.样式选择器selector：tab_item_style.xml，新建文件夹drawable，然后将该xml文件放进去

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:drawable="@drawable/unpressed_bj" android:state_selected="false"/>
    <item android:drawable="@drawable/pressed_bj" android:state_selected="true"/>

</selector>

4.java代码实现：MyTabHost.java

package com.example.androidtabhost4;

import android.os.Bundle;
import android.app.Activity;
import android.app.TabActivity;
import android.content.Intent;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.View;
import android.widget.ImageView;
import android.widget.TabHost;
import android.widget.TextView;
import android.widget.TabHost.TabSpec;

public class MyTabHost extends TabActivity {

    private TabHost tabHost;
    private LayoutInflater layoutInflater;
    String[] mTitle = new String[] { "首页", "留言", "评论", "收藏", "更多" };
    int[] mIcon = new int[] { R.drawable.home, R.drawable.saying,
            R.drawable.zan, R.drawable.collect, R.drawable.more };
    int[] mTab = new int[] { R.id.tab1, R.id.tab2, R.id.tab3, R.id.tab4,
            R.id.tab5 };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.tabhost);
        init();
    }

    public View getTabItemView(int i) {
        // TODO Auto-generated method stub
        View view = layoutInflater.inflate(R.layout.tab_item_view, null);
        ImageView imageView = (ImageView) view.findViewById(R.id.imageview);
        imageView.setImageResource(mIcon[i]);
        TextView textView = (TextView) view.findViewById(R.id.textview);
        textView.setText(mTitle[i]);
        return view;
    }

    public void init() {
        // TODO Auto-generated method stub
        tabHost = getTabHost();
        layoutInflater = LayoutInflater.from(this);
        for (int i = 0; i < mTitle.length; i++) {
            TabSpec tabSpec = tabHost.newTabSpec(mTitle[i])
                    .setIndicator(getTabItemView(i)).setContent(mTab[i]);
            tabHost.addTab(tabSpec);
            tabHost.getTabWidget().getChildAt(i)
                    .setBackgroundResource(R.drawable.tab_item_style);
            tabHost.setup();
        }
    }

}