Android Switch Card tabwidget usage Example _android

The example in this article describes the use of the Android switch card tabwidget. Share to everyone for your reference, specific as follows:

The Tab tab is similar to the phone book interface, through multiple tags to switch different content, to achieve this effect, first of all to know Tabhost, it is a container for multiple tab tags, each tab can correspond to their own layout, for example, the phone book in the tab layout is a linear layout

To use Tabhost, you first get the Tabhost object through the Gettabhost method, and then add the TAB key to the Tabhost through the AddTab method, which, of course, will generate an event when you switch, to catch this event, Need to set the Tabactivity event listener Setontabchangedlistener

Here's a small example:

Tabtest.java:

Package org.hualang.tab;
Import android.app.Activity;
Import android.app.TabActivity;
Import Android.graphics.Color;
Import Android.os.Bundle;
Import Android.widget.TabHost;
Import Android.widget.Toast;
Import Android.widget.TabHost.OnTabChangeListener;
  The public class Tabtest extends Tabactivity {/** called ' when the ' activity is ' is a-created-tabhost;
    @Override public void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate);
    Setcontentview (R.layout.main);
    Obtain Tabhost Object tabhost = Gettabhost (); Add tags for tabhost//Create a new Newtabspec (NEWTABSPEC)//Set its label and icon (setindicator)//settings content (setcontent) tabhost.addtab (tab Host.newtabspec ("Tab1"). Setindicator ("tab 1", Getresources (). getdrawable (R.DRAWABLE.IMG1)). SetContent (R.i
    D.TEXT1));
        Tabhost.addtab (Tabhost.newtabspec ("TaB2"). Setindicator ("tab 2", Getresources (). getdrawable (R.DRAWABLE.IMG2))
    . SetContent (R.ID.TEXT2)); Tabhost.addtab (TABHOST.NEWTABspec ("Tab3"). Setindicator ("Tab 3", Getresources (). getdrawable (R.DRAWABLE.IMG3)). SetContent (R.ID.TEXT3));
    Sets the background color of the Tabhost//tabhost.setbackgroundcolor (Color.argb (150,22,70,150));
    Set Tabhost background Image resource Tabhost.setbackgroundresource (R.DRAWABLE.BG0);
    Sets which label is currently displayed Tabhost.setcurrenttab (0); Label Toggle event Handling, Setontabchangedlistener Tabhost.setontabchangedlistener (new Ontabchangelistener () {public void O Ntabchanged (String tabid) {Toast toast=toast.maketext (Getapplicationcontext (), now "+tabid+" label, Toast.leng
        Th_short);
      Toast.show ();
  }
    });

 }
}

Main.xml:

<?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=" fill_parent "android:layout_height=" Fill_parent "> < LinearLayout android:orientation= "vertical" android:layout_width= fill_parent "android:layout_height=" Fill_par Ent "> <tabwidget android:id=" @android: Id/tabs "android:layout_width=" Fill_parent "Android:layo" ut_height= "Wrap_content"/> <framelayout android:id= "@android: Id/tabcontent" android:layout_width= "f Ill_parent "android:layout_height=" fill_parent "> <textview android:id=" @+id/text1 "Andro" Id:layout_width= "Fill_parent" android:layout_height= fill_parent "android:text=" tab 1 "/> <Text View android:id= "@+id/text2" android:layout_width= "fill_parent" android:layout_height= "Fill_parent" "Android:text=" tab 2 "/> <textview android:id= "@+id/text3" android:layout_width= "Fill_parent" Android:layout_

 height= "fill_parent" android:text= "tab 3"/> </FrameLayout> </LinearLayout> </TabHost>

More interested readers of Android-related content can view the site: "Summary of Android Control usage", "Android View Summary", "Android operation SQLite Database Skills Summary", " Android operation JSON format data tips summary, "Android Database Operation skills Summary", "Android File Operation skills Summary", "Android programming development of the SD card operation Summary", "Android Development introduction and Advanced course" and " Android Resource Operating Skills summary

I hope this article will help you with the Android program.