TabHost的用法

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TabHost的用法

不用继承TabActivity，在布局文件中定义TabHost即可，但是TabWidget的id必须是
@android:id/tabs，FrameLayout的id必须是@android:id/tabcontent。

TabHost的id可以自定义. (一定要写成@+id/xxx 不能使用android.id/xxx)

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  android:id="@+id/hometabs"android:orientation="vertical"    android:layout_width="fill_parent"      android:layout_height="fill_parent">     <TabHost android:id="@+id/tabhost"     android:layout_width="wrap_content"     android:layout_height="wrap_content">     <LinearLayoutandroid:orientation="vertical"android:layout_width="fill_parent"android:layout_height="fill_parent">     <TabWidget android:id="@android:id/tabs"       android:orientation="horizontal"      android:layout_width="wrap_content"      android:layout_height="wrap_content">        </TabWidget>          <FrameLayout android:id="@android:id/tabcontent"      android:layout_width="wrap_content"      android:layout_height="wrap_content">      <TextView android:id="@+id/view1"        android:layout_width="fill_parent"        android:layout_height="fill_parent"/>    <TextView android:id="@+id/view2"        android:layout_width="fill_parent"        android:layout_height="fill_parent"/>    <TextView android:id="@+id/view3"        android:layout_width="fill_parent"        android:layout_height="fill_parent"/>     </FrameLayout>          </LinearLayout>    </TabHost></LinearLayout>java代码：protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.hometabs);                TabHost tabHost = (TabHost) findViewById(R.id.tabhost);        tabHost.setup();        TabWidget tabWidget = tabHost.getTabWidget();                tabHost.addTab(tabHost.newTabSpec("tab1")                .setIndicator("tab1", getResources().getDrawable(R.drawable.mumule))                .setContent(R.id.view1));                tabHost.addTab(tabHost.newTabSpec("tab3")                .setIndicator("tab3")                .setContent(R.id.view3));                tabHost.addTab(tabHost.newTabSpec("tab2")                .setIndicator("tab2")                .setContent(R.id.view2));                final int tabs = tabWidget.getChildCount();        Log.i(TAG, "***tabWidget.getChildCount() : " + tabs);                final int tabWidth = 90;final int tabHeight = 45;for (int i = 0; i < tabs; i++) {/*final View view = tabWidget.getChildAt(i);view.getLayoutParams().width = tabWidth;view.getLayoutParams().height = tabHeight;final TextView tv = (TextView) view.findViewById(android.R.id.title);    tv.setTextColor(this.getResources().getColorStateList(android.R.color.black));    MarginLayoutParams tvMLP = (MarginLayoutParams)tv.getLayoutParams();    tvMLP.bottomMargin = 8;*/}}

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