andorid底部菜单导航

package com.example.tabhost_1;

import android.app.ActivityGroup;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;
import android.widget.RadioGroup;
import android.widget.RadioGroup.OnCheckedChangeListener;
import android.widget.TabHost;
import android.widget.TabHost.TabSpec;
import android.widget.TextView;

public class MainActivity extends ActivityGroup {

	private TabHost tabHost;// 声明一个TabHost对象

	private RadioGroup radioGroup;// 声明一个RadioGroup对象

	// 资源文件
	private Class activitys[] = { TabActivity1.class, TabActivity2.class,
			TabActivity3.class, TabActivity4.class, TabActivity5.class };// 跳转的Activity
	private String title[] = { "首页", "搜索", "设置", "主题", "更多" };// 设置菜单的标题
	private int image[] = { R.drawable.first, R.drawable.search,
			R.drawable.set, R.drawable.theme, R.drawable.more, };// 设置菜单

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		initTabView();// 初始化tab标签

	}

	private void initTabView() {
		// 实例化tabhost
		this.tabHost = (TabHost) findViewById(R.id.mytabhost);
		// 由于继承了ActivityGroup,所以需要在setup方法里加入此参数,若继承TabActivity则可省略
		tabHost.setup(this.getLocalActivityManager());

		// 创建标签
		for (int i = 0; i < activitys.length; i++) {
			/*
			 * 由于采用了RadioGroup,样式已经在xml里设置,故这里无需再自定义view //实例化一个view作为tab标签的布局
			 * View view=View.inflate(this, R.layout.tab_layout, null);
			 * 
			 * //设置imageview ImageView imageView=(ImageView)
			 * view.findViewById(R.id.image);
			 * imageView.setImageDrawable(getResources().getDrawable(image[i]));
			 * //设置textview TextView textView=(TextView)
			 * view.findViewById(R.id.title); textView.setText(title[i]);
			 */

			// 设置跳转activity
			Intent intent = new Intent(this, activitys[i]);

			// 载入view对象并设置跳转的activity
			TabSpec spec = tabHost.newTabSpec(title[i]).setIndicator(title[i])
					.setContent(intent);

			// 添加到选项卡
			tabHost.addTab(spec);
		}

		radioGroup = (RadioGroup) findViewById(R.id.radiogroup);
		radioGroup.setOnCheckedChangeListener(new OnCheckedChangeListener() {

			@Override
			public void onCheckedChanged(RadioGroup group, int checkedId) {
				switch (checkedId) {

				case R.id.radio1:
					// tabHost.setCurrentTab(int id); 用当前所在页数来跳转activity
					// tabHost.setCurrentTabByTag(String tag); 用当前标签来跳转activity
					tabHost.setCurrentTabByTag(title[0]);
					break;
				case R.id.radio2:
					tabHost.setCurrentTabByTag(title[1]);
					break;
				case R.id.radio3:
					tabHost.setCurrentTabByTag(title[2]);
					break;
				case R.id.radio4:
					tabHost.setCurrentTabByTag(title[3]);
					break;
				case R.id.radio5:
					tabHost.setCurrentTabByTag(title[4]);
					break;
				}

			}
		});

	}

}
package com.example.tabhost_1;

import android.app.Activity;
import android.os.Bundle;

public class TabActivity1  extends Activity{
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.tabactivity1);
		
		
	}

}

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activity_main.xml:

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

    <!-- 需要一个布局管理器 -->

    <RelativeLayout
        android:layout_width="fill_parent"
        android:layout_height="fill_parent" >

        <!--
       由于TabHost是继承于FrameLayout,所以需要一个FrameLaytout布局(内容页) ,id
       必须为tabcontent
        -->
        
        <FrameLayout
            android:id="@android:id/tabcontent"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent" >
        </FrameLayout>

        <!-- TabWidget必须标签,用来存放tab标签,且id必须为tabs -->

        <TabWidget
            android:id="@android:id/tabs"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"

            android:visibility="gone" >
        </TabWidget>

        <RadioGroup
            android:id="@+id/radiogroup"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            
            android:orientation="horizontal"
            android:padding="3dp" >

            <RadioButton
                android:id="@+id/radio1"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_weight="1"
    
                android:button="@null"
                android:drawablePadding="3dp"
                android:drawableTop="@drawable/first"
                android:gravity="center_horizontal"
                android:text="首页"
  
                android:textSize="10sp" />

            <RadioButton
                android:id="@+id/radio2"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_weight="1"
           
                android:button="@null"
                android:drawablePadding="3dp"
                android:drawableTop="@drawable/search"
                android:gravity="center_horizontal"
                android:text="搜索"
      
                android:textSize="10sp" />

            <RadioButton
                android:id="@+id/radio3"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:button="@null"
                android:drawablePadding="3dp"
                android:drawableTop="@drawable/set"
                android:gravity="center_horizontal"
                android:text="设置"
                android:textSize="10sp" />

            <RadioButton
                android:id="@+id/radio4"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_weight="1"
          
                android:button="@null"
                android:drawablePadding="3dp"
                android:drawableTop="@drawable/theme"
                android:gravity="center_horizontal"
                android:text="主题"
       
                android:textSize="10sp" />

            <RadioButton
                android:id="@+id/radio5"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_weight="1"

                android:button="@null"
                android:drawablePadding="3dp"
                android:drawableTop="@drawable/more"
                android:gravity="center_horizontal"
                android:text="更多"
                 android:textSize="10sp" />
        </RadioGroup>
    </RelativeLayout>

</TabHost>
----------------------------------------------------------------------------------

tabactivity1.xml:

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

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical" >


        <TextView
            android:id="@+id/title"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" 
            android:text="我是界面1"/>
    </LinearLayout>

</RelativeLayout>
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.tabhost_1"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="15"
        android:targetSdkVersion="16" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
          <activity
            android:name="TabActivity1"
            android:label="@string/app_name" >
        </activity>
        <activity
            android:name="TabActivity2"
            android:label="@string/app_name" >
        </activity>
        <activity
            android:name="TabActivity3"
            android:label="@string/app_name" >
        </activity>
        <activity
            android:name="TabActivity4"
            android:label="@string/app_name" >
        </activity>
        <activity
            android:name="TabActivity5"
            android:label="@string/app_name" >
        </activity>
        
        
        
    </application>

</manifest>

TabHost的布局的文件必须遵循下面几点:

1、所有的用于标签配置的文件,必须以“<TabHost>”为根节点;

2、为了保证标签页和标签内容显示正常(例如:标签提示要放在标签显示内容之上)则可以采用一个布局管理器进行布局(例如:LinearLayout,RelativeLayout..)

3、定义一个“<TagWidget>”的标签,用于表示整个标签容器,另外在定义此组件ID为“tabs”,表示允许加入多个标签

4、由于TabHost是FrameLayout的子类,所以要想定义标签页内容必须使用FrameLayout布局,并且标签ID为“tabcontent”
 
 
 
 
 

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这里有个重载方法setIndicator(),这里是用来设置标签页:

1、public TabHost.TabSpec setIndicator(CharSequence label)

设置标题,此时无图标

2、public TabHost.TabSpec setIndicator(CharSequence label, Drawable icon)

设置标题、图标(这里的图标可以用getResources().getDrawable(int id))来设置

3、public TabHost.TabSpec setIndicator(View view)

设置自定义view


还有个setContent(Intent intent),这里是用来设置标签内容的,也就是我们要跳转的Activity

andorid底部菜单导航_第1张图片 andorid底部菜单导航_第2张图片

亲测可用



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