Tabhost usage Examples

1.mainactivity.java

Key points:

1>Mainactivity extends tabactivity implements Onclicklistener,oncheckedchangelistener

2> Localtabhost.addtab (Buildtabspec ("New", R.string.form_tab_new,
R.drawable.main_tab_bg_selector, New Intent (This,
( hellowordactivity.class)));
3>mR1 = ((RadioButton) Findviewbyid (R.id.radio_button0));
Mr1.setoncheckedchangelistener (this);

4>

<string name= "Form_tab_new" > Latest </string>
<string name= "Form_tab_hot" > Popular </string>
<string name= "Form_tab_get" > Get points </string>
<string name= "Form_tab_soft" > Applications </string>

5>

Main_tab_bg_selector.xml

<?xml version= "1.0" encoding= "Utf-8"?>
<selector xmlns:android= "Http://schemas.android.com/apk/res/android" >
<item android:drawable= "@drawable/main_tab_bg" android:state_checked= "true"/>
</selector>

6>

Tab_selector.xml

<?xml version= "1.0" encoding= "Utf-8"?> <selector xmlns:android= "http://schemas.android.com/apk/res/ Android "> <item android:drawable=" @drawable/toptab_normal "android:state_checked=" false "/>

<item android:drawable= "@drawable/toptab_select" android:state_checked= "true"/>

</selector>

7>colors.xml

<?xml version= "1.0" encoding= "Utf-8"?>
<resources>

<color name= "White" > #FFFFFF </color> <!--
<color name= "bg" > #eeeef4 </color>
</resources>

8>toptab_select, Toptab_normal, MAIN_TAB_BG

Package Com.example.tabhostdemo;import Android.os.bundle;import Android.app.activity;import Android.app.tabactivity;import Android.content.intent;import Android.graphics.color;import Android.view.Menu; Import Android.view.view;import Android.view.window;import Android.view.view.onclicklistener;import Android.widget.button;import Android.widget.compoundbutton;import Android.widget.radiobutton;import Android.widget.radiogroup;import Android.widget.tabhost;import Android.widget.compoundbutton.oncheckedchangelistener;public class Mainactivity extends Tabactivity implements Onclicklistener,oncheckedchangelistener{private Button back;private tabhost mtabhost;private RadioButton mR1;private RadioButton mr2;private RadioButton mr3;private radiogroup main_radio; @Overrideprotected void OnCreate (Bundle Savedinstancestate) {super.oncreate (savedinstancestate); GetWindow (). Requestfeature (Window.feature_no_title); Setcontentview (R.layout.activity_main); Initview (); Setupintent ();} private void Setupintent () {this.mtabhost = Gettabhost (); Tabhost localtabhost = This.mtabhost;localtabhost.addtab (Buildtabspec ("New", R.string.form_tab_new,r.drawable.main _tab_bg_selector, New Intent (This,hellowordactivity.class)); Localtabhost.addtab (Buildtabspec ("Hot", R.string.form_tab_hot,r.drawable.main_tab_bg_selector, New Intent (This,hellowordactivity2.class)); Localtabhost.addtab (Buildtabspec ("Get", R.string.form_tab_get,r.drawable.main_tab_bg_selector, New Intent (This, Hellowordactivity.class)));} private void Initview () {mR1 = ((RadioButton) Findviewbyid (R.id.radio_button0)); Mr1.setoncheckedchangelistener (This) ; This.mR1.setTextColor (color.red); mR2 = ((RadioButton) Findviewbyid (R.id.radio_button1)); Mr2.setoncheckedchangelistener (this); mR3 = ((RadioButton) Findviewbyid (R.id.radio_button2)); Mr3.setoncheckedchangelistener (this), Main_radio = (radiogroup) Findviewbyid (r.id.main_radio); back = (Button) Findviewbyid (R.id.back); Back.setonclicklistener (this);} 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);} @Overridepublic void OnCheckedChanged (Compoundbutton buttonview, Boolean isChecked) {if (isChecked) { System.out.println ("isChecked"); switch (Buttonview.getid ()) {case R.ID.RADIO_BUTTON0: This.mTabHost.setCurrentTabByTag ("new"); This.mR1.setTextColor (color.red); This.mR2.setTextColor (Color.Black); This.mR3.setTextColor (Color.Black); Break;case R.id.radio_button1:this.mr1.settextcolor (Color.Black); This.mR3.setTextColor (Color.Black); This.mR2.setTextColor (color.red); This.mTabHost.setCurrentTabByTag ("hot"); Break;case R.id.radio_button2:this.mr1.settextcolor (Color.Black); This.mR2.setTextColor (Color.Black); This.mR3.setTextColor (color.red); This.mTabHost.setCurrentTabByTag ("get"); break;//case r.id.radio_button2://// Mpopupwindow.showasdropdown (main_radio, 0, 0);//Break;}}} @Overridepublic void OnClick (View v) {//TODO Auto-generaTed Method Stubswitch (V.getid ()) {case r.id.back:finish (); break;default:break;}}} 

2.hellowordactivity.java

Like Hellowordactivity2.java and Hellowordactivity.java.

Package Com.example.tabhostdemo;import Android.app.activity;import Android.os.bundle;public class HellowordActivity Extends Activity {@Overrideprotected void onCreate (Bundle savedinstancestate) {//TODO auto-generated method Stubsuper.oncreate (savedinstancestate); Setcontentview (R.layout.activity_hello);}}

3.

Tabhost usage Examples