TabHost

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    //这是整个布局,替换掉原来的LinearLayout,这里面的id是固定的,不能改变   <TabHost xmlns:android="http://"    xmlns:tools="http://"    android:id="@android:id/tabhost"    android:layout_width="match_parent"    android:layout_height="match_parent">   <LinearLayout    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"            >       <TabWidget    android:id="@android:id/tabs"    android:layout_width="match_parent"    android:layout_height="wrap_content"            ></TabWidget>       <FrameLayout    android:id="@android:id/tabcontent"    android:layout_width="match_parent"    android:layout_height="match_parent"            >           <TextView    android:id="@+id/tv1"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:background="#ffff00"            />           <TextView    android:id="@+id/tv2"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:background="#ffcc00"            />           <TextView    android:id="@+id/tv3"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:background="#0f0"            />       </FrameLayout>   </LinearLayout></TabHost>    //代码中具体引用    public class MainActivity extends TabActivity {        @Override        protected void onCreate(Bundle savedInstanceState) {            super.onCreate(savedInstanceState);            setContentView(R.layout.activity_main);            TabHost host = getTabHost();            host.addTab(host.newTabSpec("tuijian")                    .setIndicator("推荐")//                  .setContent(new Intent(MainActivity.this,OtherActivity.class)));                    .setContent(R.id.tv1));            host.addTab(host.newTabSpec("yule")                    .setIndicator("娱乐")//                  .setContent(new Intent(MainActivity.this,OtherActivity.class)));                    .setContent(R.id.tv2));            host.addTab(host.newTabSpec("junshi")                    .setIndicator("军事")//                  .setContent(new Intent(MainActivity.this,OtherActivity.class)));                    .setContent(R.id.tv3));        }    }
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