tabhost在网上随便找一下很多，但是真正全的东西还是不多，这里总结下我的tabhost的实现的全过程。
1、定义tabhost的xml文件
<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:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<FrameLayout
android:id="@android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="0.0dip"
android:layout_weight="1.0" />
<TabWidget
android:id="@android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="0.0"
android:visibility="gone"
android:divider="@drawable/businessopp_line" />
<RadioGroup
android:id="@+id/tabhost_radio"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:gravity="center_vertical"
android:orientation="horizontal" >
<RadioButton
android:id="@+id/radio_button1"
style="@style/tab_style"
android:background="@drawable/style_tabhost_btn1"
android:tag="radio_button0" />
<RadioButton
android:id="@+id/radio_button2"
style="@style/tab_style"
android:background="@drawable/style_tabhost_btn2"
android:tag="radio_button1"/>
<RadioButton
android:id="@+id/radio_button3"
style="@style/tab_style"
android:background="@drawable/style_tabhost_btn3"
android:tag="radio_button2" />
<RadioButton
android:id="@+id/radio_button4"
style="@style/tab_style"
android:background="@drawable/style_tabhost_btn4"
android:tag="radio_button3" />
<RadioButton
android:id="@+id/radio_button5"
style="@style/tab_style"
android:background="@drawable/style_tabhost_btn5"
android:tag="radio_button4" />
</RadioGroup>
</LinearLayout>
</TabHost>
特别注意要加几个id：tabhost中的android:id="@android :id/tabhost"FramFrameLayout中的android:id="@android :id/tabcontent"TabWidget中的android:id="@android :id/tabs"一定要添加，否则报错。还有个地方值得注意的，就是FramFrameLayout中的 android:layout_weight="1.0"和TabWidget中的 android:layout_weight="0.0"用来控制 tabhost组件显示在屏幕最下方。
其中style/tab_style
<style name="tab_style">
<item name="android:button">@null</item>
<item name="android:ellipsize">marquee</item>
<item name="android:gravity">center_horizontal</item>
<item name="android:layout_width">wrap_content</item>
<item name="android:layout_height">wrap_content</item>
<item name="android:layout_weight">1.0</item>
</style>
2、写一个继承TabActivity的类,要写在onstart方法里
public class TabHostActivity extends TabActivity {
private TabHost tabHost;
public static final String TAB_ITEM_1 = "tabItem1";
public static final String TAB_ITEM_2 = "tabItem2";
public static final String TAB_ITEM_3 = "tabItem3";
public static final String TAB_ITEM_4 = "tabItem4";
public static final String TAB_ITEM_5 = "tabItem5";
private RadioGroup radiogroup;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_tabhost);
WelcomeActivity.myActivitiesList.add(this);
radiogroup = (RadioGroup) findViewById(R.id.tabhost_radio);
radiogroup.setOnCheckedChangeListener(new OnCheckedChangeListener() {
public void onCheckedChanged(RadioGroup group, int checkedId) {
switch (checkedId) {
case R.id.radio_button1:
tabHost.setCurrentTabByTag(TAB_ITEM_1);
break;
case R.id.radio_button2:
tabHost.setCurrentTabByTag(TAB_ITEM_2);
break;
case R.id.radio_button3:
tabHost.setCurrentTabByTag(TAB_ITEM_3);
break;
case R.id.radio_button4:
tabHost.setCurrentTabByTag(TAB_ITEM_4);
break;
case R.id.radio_button5:
tabHost.setCurrentTabByTag(TAB_ITEM_5);
break;
default:
break;
}
}
});
tabHost = getTabHost();
}
@Override
protected void onStart() {
super.onStart();
TabSpec tab1b = tabHost.newTabSpec(TAB_ITEM_1);
TabSpec tab2b = tabHost.newTabSpec(TAB_ITEM_2);
TabSpec tab3b = tabHost.newTabSpec(TAB_ITEM_3);
TabSpec tab4b = tabHost.newTabSpec(TAB_ITEM_4);
TabSpec tab5b = tabHost.newTabSpec(TAB_ITEM_5);
tab1b.setIndicator(TAB_ITEM_1).setContent(new Intent(this, Test.class));
tab2b.setIndicator(TAB_ITEM_2).setContent(new Intent(this, Test.class));
tab3b.setIndicator(TAB_ITEM_3).setContent(new Intent(this, Test.class));
tab4b.setIndicator(TAB_ITEM_4).setContent(new Intent(this, Test.class));
tab5b.setIndicator(TAB_ITEM_5).setContent(new Intent(this, Test.class));
tabHost.addTab(tab1b);
tabHost.addTab(tab2b);
tabHost.addTab(tab3b);
tabHost.addTab(tab4b);
tabHost.addTab(tab5b);
}
}
完成，一个自定义的tabhost完成
