TabHost-优快云博客

在项目中遇到不少问题,想用pageView但后面的页面也有个滑动效果,考虑到会冲突,所以用回tabHost.

它主要用到来切换视图.这个挺巧妙的

public void onCheckedChanged(RadioGroup group, int checkedId) {
		switch(checkedId){
		case R.id.radio_button0:
			this.mTabHost.setCurrentTabByTag(TAB_TAG_HOME);
			break;

首先说说是转飞雪无情的.

主要代码

package com.flysnow.sina.weibo;

import com.loulijun.demo2.R;

import android.app.TabActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Window;
import android.widget.RadioGroup;
import android.widget.TabHost;
import android.widget.RadioGroup.OnCheckedChangeListener;
/**
 * 防新浪微博底部工具栏的TabActivity。Android开发技术交流群86686524欢迎大家交流学习
 * @author 飞雪无情
 * @since 2011-3-8
 */
public class MainTabActivity extends TabActivity implements OnCheckedChangeListener{
	private RadioGroup mainTab;
	private TabHost mTabHost;
	
	//内容Intent
	private Intent mHomeIntent;
	private Intent mNewsIntent;
	private Intent mInfoIntent;
	private Intent mSearchIntent;
	private Intent mMoreIntent;
	
	private final static String TAB_TAG_HOME="tab_tag_home";
	private final static String TAB_TAG_NEWS="tab_tag_news";
	private final static String TAB_TAG_INFO="tab_tag_info";
	private final static String TAB_TAG_SEARCH="tab_tag_search";
	private final static String TAB_TAG_MORE="tab_tag_more";
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //设置没有标题连
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.main);
        mainTab=(RadioGroup)findViewById(R.id.main_tab);
        mainTab.setOnCheckedChangeListener(this);
        prepareIntent();
        setupIntent();
    }
    /**
     * 准备tab的内容Intent
     */
	private void prepareIntent() {
		mHomeIntent=new Intent(this, HomeActivity.class);
		mNewsIntent=new Intent(this, NewsActivity.class);
		mInfoIntent=new Intent(this, MyInfoActivity.class);
		mSearchIntent=new Intent(this,SearchActivity.class);
		mMoreIntent=new Intent(this, MoreActivity.class);
	}
	/**
	 * 
	 */
	private void setupIntent() {
		this.mTabHost=getTabHost();
		TabHost localTabHost=this.mTabHost;
		localTabHost.addTab(buildTabSpec(TAB_TAG_HOME, R.string.main_home, R.drawable.icon_1_n, mHomeIntent));
		localTabHost.addTab(buildTabSpec(TAB_TAG_NEWS, R.string.main_news, R.drawable.icon_2_n, mNewsIntent));
		localTabHost.addTab(buildTabSpec(TAB_TAG_INFO, R.string.main_my_info, R.drawable.icon_3_n, mInfoIntent));
		localTabHost.addTab(buildTabSpec(TAB_TAG_SEARCH, R.string.menu_search, R.drawable.icon_4_n, mSearchIntent));
		localTabHost.addTab(buildTabSpec(TAB_TAG_MORE, R.string.more, R.drawable.icon_5_n, mMoreIntent));
	}
	/**
	 * 构建TabHost的Tab页
	 * @param tag 标记
	 * @param resLabel 标签
	 * @param resIcon 图标
	 * @param content 该tab展示的内容
	 * @return 一个tab
	 */
	private TabHost.TabSpec buildTabSpec(String tag, int resLabel, int resIcon,final Intent content) {
		return this.mTabHost.newTabSpec(tag).setIndicator(getString(resLabel),
				getResources().getDrawable(resIcon)).setContent(content);
	} 
	@Override
	public void onCheckedChanged(RadioGroup group, int checkedId) {
		switch(checkedId){
		case R.id.radio_button0:
			this.mTabHost.setCurrentTabByTag(TAB_TAG_HOME);
			break;
		case R.id.radio_button1:
			this.mTabHost.setCurrentTabByTag(TAB_TAG_NEWS);
			break;
		case R.id.radio_button2:
			this.mTabHost.setCurrentTabByTag(TAB_TAG_INFO);
			break;
		case R.id.radio_button3:
			this.mTabHost.setCurrentTabByTag(TAB_TAG_SEARCH);
			break;
		case R.id.radio_button4:
			this.mTabHost.setCurrentTabByTag(TAB_TAG_MORE);
			break;
		}
	}
    
    
}

主要布局文件

<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
	android:id="@android:id/tabhost"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
    <LinearLayout
    	android:orientation="vertical"
    	android:layout_width="fill_parent"
    	android:layout_height="fill_parent">
    	<FrameLayout 
    		android:id="@android:id/tabcontent"
    		android:layout_width="fill_parent"
    		android:layout_height="0.0dip"
    		android:layout_weight="1.0"/>
    	<TabWidget 
    		android:id="@android:id/tabs"
    		android:layout_width="fill_parent"
    		android:layout_height="wrap_content"
    		android:layout_weight="0.0"
    		android:visibility="gone"/>
    	<RadioGroup
    		android:id="@+id/main_tab"
    		android:background="@drawable/maintab_toolbar_bg"
    		android:orientation="horizontal"
    		android:layout_width="fill_parent"
    		android:layout_height="wrap_content"
    		android:gravity="center_vertical"
    		android:layout_gravity="bottom">
    		<RadioButton 
    			android:layout_marginTop="2.0dip"
    			android:text="@string/main_home"
    			android:drawableTop="@drawable/icon_1_n"
    			android:id="@+id/radio_button0"
    			style="@style/main_tab_bottom"/>
    		<RadioButton 
    			android:layout_marginTop="2.0dip"
    			android:text="@string/main_news"
    			android:drawableTop="@drawable/icon_2_n"
    			android:id="@+id/radio_button1"
    			style="@style/main_tab_bottom"/>
    		<RadioButton 
    			android:layout_marginTop="2.0dip"
    			android:text="@string/main_my_info"
    			android:drawableTop="@drawable/icon_3_n"
    			android:id="@+id/radio_button2"
    			style="@style/main_tab_bottom"/>
    		<RadioButton 
    			android:layout_marginTop="2.0dip"
    			android:text="@string/menu_search"
    			android:drawableTop="@drawable/icon_4_n"
    			android:id="@+id/radio_button3"
    			style="@style/main_tab_bottom"/>
    		<RadioButton 
    			android:layout_marginTop="2.0dip"
    			android:text="@string/more"
    			android:drawableTop="@drawable/icon_5_n"
    			android:id="@+id/radio_button4"
    			style="@style/main_tab_bottom"/>
    	</RadioGroup>
    </LinearLayout>
</TabHost>