【Android】--底部Tab的实现
				
									
					
					
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							admin 2013年2月25日 14:40
								本文热度 5795 | 
					
				 
				国际惯例先上图:

tabhost布局文件,注意tabhost,tabcontent和tabs这三个id一定要正确
- 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" >  
-     <RelativeLayout android:orientation="vertical"    
-         android:layout_width="match_parent"   
-         android:layout_height="match_parent">  
-         <FrameLayout android:id="@android:id/tabcontent"    
-                 android:layout_width="match_parent"   
-                 android:layout_height="match_parent" />  
-             <TabWidget android:id="@android:id/tabs"  
-                 android:layout_width="match_parent"  
-                 android:layout_height="wrap_content"   
-                 android:background="@drawable/selector"  
-                 android:layout_alignParentBottom="true">  
-             TabWidget>  
-     RelativeLayout>  
- TabHost>  
 每一个tab项的布局文件,上面图片下面是文字,
- xml version="1.0" encoding="utf-8"?>  
- <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  
-     android:layout_width="match_parent"  
-     android:layout_height="match_parent"  
-     android:orientation="vertical" >  
-     <ImageView android:id="@+id/tab_iv_icon"  
-         android:layout_width="match_parent"   
-         android:layout_height="28.0dip"   
-         android:scaleType="fitCenter"/>  
-     <TextView android:id="@+id/tab_tv_text"  
-         android:layout_width="match_parent"   
-         android:layout_height="wrap_content"   
-         android:textSize="12.0sp"   
-         android:textColor="#FFFFFF"  
-         android:ellipsize="marquee"   
-         android:gravity="center"   
-         android:singleLine="true"   
-         android:marqueeRepeatLimit="1"/>  
- LinearLayout>  
 最后是MainActivity继承自TabActivity 
- public class MainActivity extends TabActivity {  
-     private TabHost tabHost;  
-     private static final String HOME = "主页";    
-     private static final String REFER = "提及";    
-     private static final String ABOUT = "关于";  
-     private static final String SEARCH = "搜索";    
-     private static final String MORE = "更多";   
-       
-     private Intent homeIntent;  
-     private Intent referIntent;  
-     private Intent aboutIntent;  
-     private Intent searchIntent;  
-     private Intent moreIntent;  
-   
-     public void onCreate(Bundle savedInstanceState) {  
-         super.onCreate(savedInstanceState);  
-         setContentView(R.layout.tabhost);  
-           
-         tabHost=this.getTabHost();  
-         tabHost.setFocusable(true);  
-         prepareIntent();  
-         setupIntent();  
-           
-     }  
-       
-     private void setupIntent(){  
-         tabHost.addTab(buildTabSpec(HOME,R.drawable.icon_1_n, homeIntent));  
-         tabHost.addTab(buildTabSpec(REFER,R.drawable.icon_2_n, referIntent));  
-         tabHost.addTab(buildTabSpec(ABOUT,R.drawable.icon_3_n, aboutIntent));  
-         tabHost.addTab(buildTabSpec(SEARCH,R.drawable.icon_4_n, searchIntent));  
-         tabHost.addTab(buildTabSpec(MORE,R.drawable.icon_5_n, moreIntent));  
-     }  
-   
-     private TabSpec buildTabSpec(String tag, int icon, Intent intent) {  
-         View view = View.inflate(MainActivity.this, R.layout.tab, null);  
-         ((ImageView)view.findViewById(R.id.tab_iv_icon)).setImageResource(icon);  
-         ((TextView)view.findViewById(R.id.tab_tv_text)).setText(tag);  
-         return tabHost.newTabSpec(tag)  
-                 .setIndicator(view)  
-                 .setContent(intent);  
-     }  
-   
-     private void prepareIntent() {  
-         homeIntent=new Intent(this, HomeActivity.class);  
-         referIntent=new Intent(this, ReferActivity.class);  
-         aboutIntent=new Intent(this, AboutActivity.class);  
-         searchIntent=new Intent(this,SearchActivity.class);  
-         moreIntent=new Intent(this, MoreActivity.class);  
-     }  
-   
- }  
  
该文章在 2013/2/25 16:37:08 编辑过