How to Use the Tab 2 (Android learning essay 13)

 

1. Do not inherit TabActivity

 

2. Define TabHost in the layout

 

Note: The TabWidget id must be @ android: id/tabs, and the FrameLayout id must be @ android: id/tabcontent.

 

Java code:

 

 

Package yc. demo;

 

Import android. app. Activity;

Import android. OS. Bundle;

Import android. widget. TabHost;

Import android. widget. TabHost. TabSpec;

 

Public class TabhostDemo1Activity extends Activity {

/** Called when the activity is first created .*/

@ Override

Public void onCreate (Bundle savedInstanceState ){

Super. onCreate (savedInstanceState );

SetContentView (R. layout. demo1 );

// Obtain the TabHost

TabHost tabHost = (TabHost) this. findViewById (R. id. tabs );

TabHost. setup ();

// Obtain a new TabHost. TabSpec and associate it with the current tabHost.

// Parameter: Required tab labels

TabSpec pSpes = tabHost. newTabSpec ("parent ");

PSpes. setIndicator ("parent class", this. getResources (). getDrawable (R. drawable. msg_icon ));

PSpes. setContent (R. id. textView1 );

TabSpec subSpec = tabHost. newTabSpec ("sub ");

SubSpec. setIndicator ("subclass", this. getResources (). getDrawable (R. drawable. at_icon ));

SubSpec. setContent (R. id. textView2 );

// Add a tab to tabHost

TabHost. addTab (pSpes );

TabHost. addTab (subSpec );

}

}

Xml layout file:

 

 

<? Xml version = "1.0" encoding = "UTF-8"?>

<LinearLayout xmlns: android = "http://schemas.android.com/apk/res/android"

Android: layout_width = "fill_parent"

Android: layout_height = "fill_parent"

Android: orientation = "vertical">

 

<TabHost android: id = "@ + id/tabs"

Android: layout_width = "fill_parent"

Android: layout_height = "fill_parent">

<LinearLayout android: layout_width = "fill_parent"

Android: layout_height = "fill_parent"

Android: orientation = "vertical">

<TabWidget android: id = "@ android: id/tabs"

Android: layout_width = "fill_parent"

Android: layout_height = "wrap_content"/>

<FrameLayout android: id = "@ android: id/tabcontent"

Android: layout_height = "fill_parent"

Android: layout_width = "fill_parent">

<TextView android: id = "@ + id/textView1"

Android: layout_height = "fill_parent"

Android: layout_width = "fill_parent"

Android: text = "parent"/>

<TextView android: id = "@ + id/textView2"

Android: layout_height = "fill_parent"

Android: layout_width = "fill_parent"

Android: text = "sub"/>

</FrameLayout>

</LinearLayout>

</TabHost>

 

</LinearLayout>

 

Tip: The display order of tabs is determined based on the order in which you add tabs.

From tianshijianbing1989