Android TabHost组件使用方法详解

<?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:orientation="vertical" 
  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" 
  /> 
 
  <framelayout android:id="@android:id/tabcontent" 
   android:layout_width="match_parent" 
   android:layout_height="0dip" 
   android:layout_weight="1" 
  /> 
 </linearlayout> 
</tabhost> 

<?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:orientation="vertical" 
  android:layout_width="match_parent" 
  android:layout_height="match_parent"> 
 
  <framelayout android:id="@android:id/tabcontent" 
   android:layout_width="fill_parent" 
   android:layout_height="0dip" 
   android:layout_weight="1" 
  /> 
   
  <tabwidget android:id="@android:id/tabs" 
   android:layout_width="fill_parent" 
   android:layout_height="wrap_content" 
  /> 
 
 
 </linearlayout> 
</tabhost>

package com.android.test; 
 
import android.app.activity; 
import android.app.tabactivity; 
import android.content.intent; 
import android.os.bundle; 
import android.provider.calllog.calls; 
import android.provider.contacts.intents.ui; 
import android.view.window; 
import android.widget.tabhost; 
 
public class main extends tabactivity implements tabhost.ontabchangelistener { 
 private static final int tab_index_dialer = 0; 
 private static final int tab_index_call_log = 1; 
 private static final int tab_index_contacts = 2; 
 private static final int tab_index_favorites = 3; 
 
 private tabhost mtabhost; 
  
 @override 
 public void oncreate(bundle savedinstancestate) { 
  super.oncreate(savedinstancestate); 
 
  final intent intent = getintent(); 
 
  requestwindowfeature(window.feature_no_title); 
   
  setcontentview(r.layout.main); 
 
  mtabhost = gettabhost(); 
  mtabhost.setontabchangedlistener(this); 
 
  // setup the tabs 
  setupdialertab(); 
  setupcalllogtab(); 
  setupcontactstab(); 
  setupfavoritestab(); 
 
  setcurrenttab(intent); 
 } 
 
 public void ontabchanged(string tabid) { 
   activity activity = getlocalactivitymanager().getactivity(tabid); 
   if (activity != null) { 
    activity.onwindowfocuschanged(true); 
   } 
 } 
  private void setupcalllogtab() { 
   // force the class since overriding tab entries doesn't work 
   intent intent = new intent("com.android.phone.action.recent_calls"); 
 
   intent.setclass(this, inner.class); 
   mtabhost.addtab(mtabhost.newtabspec("call_log") 
     .setindicator("通话记录", 
       getresources().getdrawable(r.drawable.ic_tab_unselected_recent)) 
     .setcontent(intent)); 
  } 
  
 private void setupdialertab() { 
  intent intent = new intent("com.android.phone.action.touch_dialer"); 
  intent.setclass(this, inner.class); 
 
  mtabhost.addtab(mtabhost.newtabspec("dialer") 
    .setindicator("拨号", 
      getresources().getdrawable(r.drawable.ic_tab_unselected_dialer)) 
    .setcontent(intent)); 
 } 
 
 private void setupcontactstab() { 
  intent intent = new intent(ui.list_default); 
  intent.setclass(this, main.class); 
 
  mtabhost.addtab(mtabhost.newtabspec("contacts") 
    .setindicator("通讯录", 
      getresources().getdrawable(r.drawable.ic_tab_unselected_contacts)) 
    .setcontent(intent)); 
 } 
 
 private void setupfavoritestab() { 
  intent intent = new intent(ui.list_strequent_action); 
  intent.setclass(this, inner.class); 
 
  mtabhost.addtab(mtabhost.newtabspec("favorites") 
    .setindicator("收藏", 
      getresources().getdrawable(r.drawable.ic_tab_unselected_starred)) 
    .setcontent(intent)); 
 } 
 
 /** 
  * sets the current tab based on the intent's request type 
  * 
  * @param intent intent that contains information about which tab should be selected 
  */ 
 private void setcurrenttab(intent intent) { 
  // dismiss menu provided by any children activities 
  activity activity = getlocalactivitymanager(). 
    getactivity(mtabhost.getcurrenttabtag()); 
  if (activity != null) { 
   activity.closeoptionsmenu(); 
  } 
 
  // tell the children activities that they should ignore any possible saved 
  // state and instead reload their state from the parent's intent 
  intent.putextra("", true); 
 
  // choose the tab based on the inbound intent 
  string componentname = intent.getcomponent().getclassname(); 
  if (getclass().getname().equals(componentname)) { 
   if (false) { 
    //in a call, show the dialer tab(which allows going back to the call) 
    mtabhost.setcurrenttab(tab_index_dialer); 
   } else if ((intent.getflags() & intent.flag_activity_launched_from_history) != 0) { 
    // launched from history (long-press home) --> nothing to change 
   } else if (true) { 
    // the dialer was explicitly requested 
    mtabhost.setcurrenttab(tab_index_dialer); 
   } 
  } 
 } 
} 

package com.android.test; 
 
import android.app.tabactivity; 
import android.content.intent; 
import android.os.bundle; 
import android.view.window; 
import android.widget.tabhost; 
import android.widget.tabwidget; 
import android.widget.textview; 
 
public class inner extends tabactivity implements tabhost.ontabchangelistener { 
 private static final int tab_index_all = 0; 
 private static final int tab_index_missed = 1; 
 private static final int tab_index_outgoing = 2; 
 private static final int tab_index_received = 3; 
 
 private tabhost mtabhost; 
 private tabwidget mtabwidget; 
  
 @override 
 public void oncreate(bundle savedinstancestate) { 
  super.oncreate(savedinstancestate); 
  requestwindowfeature(window.feature_no_title); 
  setcontentview(r.layout.inner); 
 
  mtabhost = gettabhost(); 
  mtabhost.setontabchangedlistener(this); 
 
  setuptabs(); 
  mtabwidget = mtabhost.gettabwidget(); 
  mtabwidget.setstripenabled(false); 
 
  for (int i = 0; i < mtabwidget.getchildcount(); i++) { 
 
   textview tv = (textview) mtabwidget.getchildat(i).findviewbyid( 
     android.r.id.title); 
   tv.settextcolor(this.getresources().getcolorstatelist( 
     android.r.color.white)); 
    
   tv.setpadding(0, 0, 0,(int) tv.gettextsize()); 
   tv.settext("tab" + i); 
   mtabwidget.getchildat(i).getlayoutparams().height =(int ) (3* tv.gettextsize()); 
 
   mtabwidget.getchildat(i).setbackgroundresource(r.drawable.tab_bg); 
  } 
 } 
 
 public void ontabchanged(string tabid) { 
   
 } 
 
 private void setuptabs() { 
  mtabhost.addtab(mtabhost.newtabspec("all").setindicator( 
    getstring(r.string.inner)).setcontent( 
    new intent(this, other.class))); 
  mtabhost.addtab(mtabhost.newtabspec("missed").setindicator( 
    getstring(r.string.inner)).setcontent( 
    new intent(this, other.class))); 
  mtabhost.addtab(mtabhost.newtabspec("outgoing").setindicator( 
    getstring(r.string.inner)).setcontent( 
    new intent(this, other.class))); 
  mtabhost.addtab(mtabhost.newtabspec("received").setindicator( 
    getstring(r.string.inner)).setcontent( 
    new intent(this, other.class))); 
 
 } 
}