實(shí)例講解Android應(yīng)用開發(fā)中TabHost的使用要點(diǎn)

更新時(shí)間：2016年04月15日 15:02:55 作者：無鴦

這篇文章主要介紹了Android應(yīng)用開發(fā)中TabHost的使用要點(diǎn),文中以實(shí)例講解了TabHost與Tab的布局方法,需要的朋友可以參考下

Tab與TabHost:

2016415145730178.png (319×94)

這就是Tab，而盛放Tab的容器就是TabHost 。
如何實(shí)現(xiàn)？？
每一個(gè)Tab還對(duì)應(yīng)了一個(gè)布局，這個(gè)就有點(diǎn)好玩了。一個(gè)Activity，對(duì)應(yīng)了多個(gè)功能布局。
新建一個(gè)Tab項(xiàng)目，注意，不要生成main Activity 。

2016415145821998.png (120×103)

注意IDE，這里不要選...
在包里面新建一個(gè)類MyTab，繼承于TabActivity。
其實(shí)，TabActivity是Activity的子類

package zyf.tab.test;
 
import android.app.TabActivity;
 
public class MyTab extends TabActivity {
 
}

從父類繼承OnCreate()入口方法

package zyf.tab.test;
import android.app.TabActivity;
import android.os.Bundle;
public class MyTab extends TabActivity {
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
  }
}

在Manifest.xml文件中注冊(cè)一下MyTab類（Activity）

<activity android:name=".MyTab">
  <intent-filter>
    <action android:name="android.intent.action.MAIN"></action>
    <category android:name="android.intent.category.LAUNCHER"></category>
  </intent-filter>
</activity>

這時(shí)候，需要設(shè)計(jì)一下標(biāo)簽頁(yè)對(duì)應(yīng)的布局，一般采用FrameLayout作為根布局，每個(gè)標(biāo)簽頁(yè)面對(duì)應(yīng)一個(gè)子節(jié)點(diǎn)的Layout

<?xml version="1.0" encoding="utf-8"?>
<!-- 這里是根節(jié)點(diǎn)布局 -- >
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent" android:layout_height="fill_parent">
 
<!-- 第一個(gè)Tab 對(duì)應(yīng)的布局 -- >
  <LinearLayout android:id="@+id/widget_layout_Blue"
    android:layout_width="fill_parent" android:layout_height="fill_parent"
    androidrientation="vertical" >
    <EditText android:id="@+id/widget34" android:layout_width="fill_parent"
      android:layout_height="wrap_content" android:text="EditText"
      android:textSize="18sp">
    </EditText>
    <Button android:id="@+id/widget30" android:layout_width="wrap_content"
      android:layout_height="wrap_content" android:text="Button">
    </Button>
  </LinearLayout>
<!-- 第二個(gè)Tab 對(duì)應(yīng)的布局 -- >
  <LinearLayout android:id="@+id/widget_layout_red"
    android:layout_width="fill_parent" android:layout_height="fill_parent"
    androidrientation="vertical" >
    <AnalogClock android:id="@+id/widget36"
      android:layout_width="wrap_content" android:layout_height="wrap_content">
    </AnalogClock>
  </LinearLayout>
<!-- 第三個(gè)Tab 對(duì)應(yīng)的布局 -- >
  <LinearLayout android:id="@+id/widget_layout_green"
    android:layout_width="fill_parent" android:layout_height="fill_parent"
    androidrientation="vertical">
    <RadioGroup android:id="@+id/widget43"
      android:layout_width="166px" android:layout_height="98px"
      androidrientation="vertical">
      <RadioButton android:id="@+id/widget44"
        android:layout_width="wrap_content" android:layout_height="wrap_content"
        android:text="RadioButton">
      </RadioButton>
      <RadioButton android:id="@+id/widget45"
        android:layout_width="wrap_content" android:layout_height="wrap_content"
        android:text="RadioButton">
      </RadioButton>
    </RadioGroup>
  </LinearLayout>
</FrameLayout>

首先，應(yīng)該聲明TabHost，然后用LayoutInflater過濾出布局來，給TabHost加上含有Tab頁(yè)面的FrameLayout

private TabHost myTabhost;
myTabhost=this.getTabHost();//從TabActivity上面獲取放置Tab的TabHost
LayoutInflater.from(this).inflate(R.layout.main, myTabhost.getTabContentView(), true);
//from(this)從這個(gè)TabActivity獲取LayoutInflater
//R.layout.main 存放Tab布局
//通過TabHost獲得存放Tab標(biāo)簽頁(yè)內(nèi)容的FrameLayout
//是否將inflate 拴系到根布局元素上
myTabhost.setBackgroundColor(Color.argb(150, 22, 70, 150));
//設(shè)置一下TabHost的顏色

接著，在TabHost創(chuàng)建一個(gè)標(biāo)簽，然后設(shè)置一下標(biāo)題／圖標(biāo)／標(biāo)簽頁(yè)布局

myTabhost.addTab(myTabhost.newTabSpec("TT")// 制造一個(gè)新的標(biāo)簽TT
   .setIndicator("KK",getResources().getDrawable(R.drawable.ajjc))
            // 設(shè)置一下顯示的標(biāo)題為KK，設(shè)置一下標(biāo)簽圖標(biāo)為ajjc
            .setContent(R.id.widget_layout_red));
    //設(shè)置一下該標(biāo)簽頁(yè)的布局內(nèi)容為R.id.widget_layout_red，這是FrameLayout中的一個(gè)子Layout

標(biāo)簽切換事件處理，setOnTabChangedListener

myTabhost.setOnTabChangedListener(new OnTabChangeListener(){
      @Override
      public void onTabChanged(String tabId) {
        // TODO Auto-generated method stub
      }      
    });

各個(gè)標(biāo)簽頁(yè)的動(dòng)態(tài)MENU
先把在XML中設(shè)計(jì)好的MENU放到一個(gè)int數(shù)組里

private static final int myMenuResources[] = { R.menu.phonebook_menu,
      R.menu.addphone_menu, R.menu.chatting_menu, R.menu.userapp_menu };

在setOnTabChangedListener()方法中根據(jù)標(biāo)簽的切換情況來設(shè)置myMenuSettingTag

Override
  public void onTabChanged(String tagString) {
    // TODO Auto-generated method stub
    if (tagString.equals("One")) {
      myMenuSettingTag = 1;
    }
    if (tagString.equals("Two")) {
      myMenuSettingTag = 2;
    }
    if (tagString.equals("Three")) {
      myMenuSettingTag = 3;
    }
    if (tagString.equals("Four")) {
      myMenuSettingTag = 4;
    }
    if (myMenu != null) {
      onCreateOptionsMenu(myMenu);
    }
  }

然后onCreateOptionsMenu(Menu menu) 方法中通過MenuInflater過濾器動(dòng)態(tài)加入MENU

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    // TODO Auto-generated method stub
    // Hold on to this
    myMenu = menu;
    myMenu.clear();//清空MENU菜單
    // Inflate the currently selected menu XML resource.
    MenuInflater inflater = getMenuInflater();    
//從TabActivity這里獲取一個(gè)MENU過濾器
    switch (myMenuSettingTag) {
    case 1:
      inflater.inflate(myMenuResources[0], menu);
      //動(dòng)態(tài)加入數(shù)組中對(duì)應(yīng)的XML MENU菜單
      break;
    case 2:
      inflater.inflate(myMenuResources[1], menu);
      break;
    case 3:
      inflater.inflate(myMenuResources[2], menu);
      break;
    case 4:
      inflater.inflate(myMenuResources[3], menu);
      break;
    default:
      break;
    }
    return super.onCreateOptionsMenu(menu);
  }

menu 布局

<?xml version="1.0" encoding="utf-8"?>
<menu
 xmlns:android="http://schemas.android.com/apk/res/android">
<group android:id="@+id/group_a"><item android:id="@+id/item_a" android:icon="@drawable/gimp" android:title="Gimp"></item>
</group>
</menu>

運(yùn)行效果

2016415150019730.png (320×480)

2016415150042317.png (320×480)

2016415150100038.png (320×480)

模仿微信導(dǎo)航實(shí)例：

2016415150122927.png (480×854)

<?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="match_parent" 
  android:layout_height="match_parent" > 
 
  <LinearLayout 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:orientation="vertical" > 
 
    <FrameLayout 
      android:id="@android:id/tabcontent" 
      android:layout_width="match_parent" 
      android:layout_height="0.0dip" 
      android:layout_weight="1.0" > 
    </FrameLayout> 
 
    <TabWidget 
      android:id="@android:id/tabs" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:visibility="gone" > 
    </TabWidget> 
 
    <RadioGroup 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:layout_gravity="bottom" 
      android:background="@android:color/black" 
      android:orientation="horizontal" > 
 
      <RadioButton 
        android:id="@+id/talk" 
        style="@style/rbt_bottom" 
        android:drawableTop="@drawable/take_bottom" 
        android:text="@string/talk" /> 
 
      <RadioButton 
        android:id="@+id/address" 
        style="@style/rbt_bottom" 
        android:drawableTop="@drawable/adrress_bottom" 
        android:text="@string/address" /> 
 
      <RadioButton 
        android:id="@+id/find" 
        style="@style/rbt_bottom" 
        android:drawableTop="@drawable/find_bottom" 
        android:text="@string/find" /> 
 
      <RadioButton 
        android:id="@+id/me" 
        style="@style/rbt_bottom" 
        android:drawableTop="@drawable/me_bottom" 
        android:text="@string/me" /> 
    </RadioGroup> 
  </LinearLayout> 
 
</TabHost>

<?xml version="1.0" encoding="utf-8"?> 
<selector xmlns:android="http://schemas.android.com/apk/res/android"> 
 
  <item android:drawable="@drawable/n_address_l" android:state_checked="true" android:state_enabled="true"/> 
  <item android:drawable="@drawable/n_address_h"/> 
 
</selector>

package com.android.xiong.bkclient; 
 
import android.app.TabActivity; 
import android.content.Intent; 
import android.os.Bundle; 
import android.widget.CompoundButton; 
import android.widget.CompoundButton.OnCheckedChangeListener; 
import android.widget.RadioButton; 
import android.widget.TabHost; 
 
@SuppressWarnings("deprecation") 
public class MainActivity extends TabActivity implements 
    OnCheckedChangeListener { 
 
  private TabHost tabHost; 
  private Intent addressIntent; 
  private Intent meIntent; 
  private Intent takeIntent; 
  private Intent findIntent; 
 
  private RadioButton findBt; 
  private RadioButton addressBt; 
  private RadioButton meBt; 
  private RadioButton takeBt; 
 
  @Override 
  protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.tabhostmain); 
    addressIntent = new Intent(this, AddressActivity.class); 
    meIntent = new Intent(this, MeActivity.class); 
    takeIntent = new Intent(this, TakeActivity.class); 
    findIntent = new Intent(this, FindActivity.class); 
    findBt = (RadioButton) findViewById(R.id.find); 
    addressBt = (RadioButton) findViewById(R.id.address); 
    meBt = (RadioButton) findViewById(R.id.me); 
    takeBt = (RadioButton) findViewById(R.id.talk); 
    tabHost =getTabHost(); 
    tabHost.addTab(tabHost.newTabSpec("take").setIndicator("take") 
        .setContent(takeIntent)); 
    tabHost.addTab(tabHost.newTabSpec("address").setIndicator("address") 
        .setContent(addressIntent)); 
    tabHost.addTab(tabHost.newTabSpec("find").setIndicator("find") 
        .setContent(findIntent)); 
    tabHost.addTab(tabHost.newTabSpec("me").setIndicator("me") 
        .setContent(meIntent)); 
    findBt.setOnCheckedChangeListener(this); 
    meBt.setOnCheckedChangeListener(this); 
    takeBt.setOnCheckedChangeListener(this); 
    addressBt.setOnCheckedChangeListener(this); 
  } 
 
  @Override 
  public void onCheckedChanged(CompoundButton view, boolean ischeak) { 
    if (ischeak) { 
      switch (view.getId()) { 
      case R.id.talk: 
        tabHost.setCurrentTabByTag("take"); 
        break; 
      case R.id.find: 
        tabHost.setCurrentTabByTag("find"); 
        break; 
      case R.id.me: 
        tabHost.setCurrentTabByTag("me"); 
        break; 
      case R.id.address: 
        tabHost.setCurrentTabByTag("address"); 
        break; 
      default: 
        break; 
      } 
    } 
 
  } 
}



<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
  package="com.android.xiong.bkclient" 
  android:versionCode="1" 
  android:versionName="1.0" > 
 
  <uses-sdk 
    android:minSdkVersion="8" 
    android:targetSdkVersion="19" /> 
 
  <application 
    android:allowBackup="true" 
    android:icon="@drawable/ic_launcher" 
    android:label="@string/app_name" 
    android:theme="@style/AppTheme" > 
    <activity android:name="com.android.xiong.bkclient.MainActivity"> 
      <intent-filter> 
        <action android:name="android.intent.action.MAIN" /> 
 
        <category android:name="android.intent.category.LAUNCHER" /> 
      </intent-filter> 
    </activity> 
    <activity android:name="com.android.xiong.bkclient.AddressActivity"></activity> 
    <activity android:name="com.android.xiong.bkclient.FindActivity"></activity> 
    <activity android:name="com.android.xiong.bkclient.MeActivity"></activity> 
    <activity android:name="com.android.xiong.bkclient.TakeActivity"></activity> 
  </application> 
 
</manifest>

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