Android TabActivity——学习笔记

1、通过布局指定要显示的内容：

tabs.xml

<?xml version="1.0" encoding="utf-8"?> <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent"> <TextView android:id="@+id/view1" android:background="@drawable/blue" android:layout_width="fill_parent" android:layout_height="fill_parent" android:text="@string/tabs_1_tab_1"/> <TextView android:id="@+id/view2" android:background="@drawable/red" android:layout_width="fill_parent" android:layout_height="fill_parent" android:text="@string/tabs_1_tab_2"/> <TextView android:id="@+id/view3" android:background="@drawable/green" android:layout_width="fill_parent" android:layout_height="fill_parent" android:text="@string/tabs_1_tab_3"/> </FrameLayout> 

Tabs1.java

public class Tabs1 extends TabActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); TabHost tabHost = getTabHost(); LayoutInflater.from(this).inflate(R.layout.tabs1, tabHost.getTabContentView(), true); tabHost.addTab(tabHost.newTabSpec("tab1") .setIndicator("tab1") .setContent(R.id.view1)); tabHost.addTab(tabHost.newTabSpec("tab3") .setIndicator("tab2") .setContent(R.id.view2)); tabHost.addTab(tabHost.newTabSpec("tab3") .setIndicator("tab3") .setContent(R.id.view3)); } } 

 

 

2、通过TabHost.TabContentFactor指定布局

public class Tabs2 extends TabActivity implements TabHost.TabContentFactory { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); final TabHost tabHost = getTabHost(); tabHost.addTab(tabHost.newTabSpec("tab1") .setIndicator("tab1", getResources().getDrawable(R.drawable.star_big_on)) .setContent(this)); tabHost.addTab(tabHost.newTabSpec("tab2") .setIndicator("tab2") .setContent(this)); tabHost.addTab(tabHost.newTabSpec("tab3") .setIndicator("tab3") .setContent(this)); } /** {@inheritDoc} */ public View createTabContent(String tag) { final TextView tv = new TextView(this); tv.setText("Content for tab with tag " + tag); return tv; } } 

 

3、通过Intent来启动其他的Activity

public class Tabs3 extends TabActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); final TabHost tabHost = getTabHost(); tabHost.addTab(tabHost.newTabSpec("tab1") .setIndicator("list") .setContent(new Intent(this, List1.class))); tabHost.addTab(tabHost.newTabSpec("tab2") .setIndicator("photo list") .setContent(new Intent(this, List8.class))); // This tab sets the intent flag so that it is recreated each time // the tab is clicked. tabHost.addTab(tabHost.newTabSpec("tab3") .setIndicator("destroy") .setContent(new Intent(this, Controls2.class) .addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP))); } }