tabHost的简单使用

现在虽然TabHost很少用了，但很多项目仍然在用，值得了解下。

方式一：使用TabHost组件，

    

1.布局文件

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context="${relativePackage}.${activityClass}" >

    <TabHost
        android:id="@+id/tabhost1"
        android:layout_width="match_parent"
        android:layout_height="match_parent" >

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical" >

            <FrameLayout
                android:id="@android:id/tabcontent"
                android:layout_width="match_parent"
                android:layout_height="0px"
                android:layout_weight="6" >

                <!-- 第一个tab的布局 -->

                <RelativeLayout
                    android:id="@+id/tab1"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent" >

                    <TextView
                        android:layout_centerInParent="true"
                        android:id="@+id/textView1"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:text="tab" />
                </RelativeLayout>

                <!-- 第二个tab的布局 -->

                <RelativeLayout
                    android:id="@+id/tab2"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent" >

                    <TextView
                        android:layout_centerInParent="true"
                        android:id="@+id/textView2"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:text="tab2" />
                </RelativeLayout>

                <!-- 第三个tab的布局 -->

                <RelativeLayout
                    android:id="@+id/tab3"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent" >

                    <TextView
                        android:layout_centerInParent="true"
                        android:id="@+id/textView3"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:text="tab3" />
                </RelativeLayout>
            </FrameLayout>
            
            <TabWidget
                android:id="@android:id/tabs"
                android:layout_width="match_parent"
                android:layout_height="0px"
                android:layout_weight="1" >
            </TabWidget>
            
        </LinearLayout>
    </TabHost>
</LinearLayout>

2.Activity文件 

public class TabActivity1 extends Activity {

 private TabHost mTabHost;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_tab_1);

       

        mTabHost = (TabHost) findViewById(R.id.tabhost1);

      //1.初始化TabHost容器  

        mTabHost.setup();

      //2.在TabHost创建标签，然后设置：标题／图标／标签页布局

        mTabHost.addTab(mTabHost.newTabSpec("tab1").setIndicator("标签1",

          getResources().getDrawable(R.drawable.ic_launcher)).setContent(R.id.tab1));  

        mTabHost.addTab(mTabHost.newTabSpec("tab2").setIndicator("标签2",null).setContent(R.id.tab2));  

        mTabHost.addTab(mTabHost.newTabSpec("tab3").setIndicator("标签3",null).setContent(R.id.tab3));  

    }

}

public class TabActivity1 extends Activity {

 private TabHost mTabHost;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_tab_1);

       

        mTabHost = (TabHost) findViewById(R.id.tabhost1);

      //1.初始化TabHost容器  

        mTabHost.setup();

      //2.在TabHost创建标签，然后设置：标题／图标／标签页布局

        mTabHost.addTab(mTabHost.newTabSpec("tab1").setIndicator("标签1",

          getResources().getDrawable(R.drawable.ic_launcher)).setContent(R.id.tab1));  

        mTabHost.addTab(mTabHost.newTabSpec("tab2").setIndicator("标签2",null).setContent(R.id.tab2));  

        mTabHost.addTab(mTabHost.newTabSpec("tab3").setIndicator("标签3",null).setContent(R.id.tab3));  

    }

}

方式二： tab项分开

1。

public class TabActivity2 extends Activity {

 private TabHost mTabHost;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_tab_2);

       

        mTabHost = (TabHost) findViewById(R.id.tabhost2);

      //1.初始化TabHost容器  

        mTabHost.setup();

     

        //把tab组件载入到tabHost父窗口中

        LayoutInflater i=LayoutInflater.from(this);  

        i.inflate(R.layout.tab_1, mTabHost.getTabContentView());  

        i.inflate(R.layout.tab_2, mTabHost.getTabContentView());

        i.inflate(R.layout.tab_3, mTabHost.getTabContentView());

       

      //在TabHost创建标签，然后设置：标题／图标／标签页布局  

        mTabHost.addTab(mTabHost.newTabSpec("tab1").setIndicator("标签1").setContent(R.id.tab1));    

        mTabHost.addTab(mTabHost.newTabSpec("tab2").setIndicator("标签2").setContent(R.id.tab2));

        mTabHost.addTab(mTabHost.newTabSpec("tab3").setIndicator("标签3").setContent(R.id.tab3));

    }

}

3. 使用TabActivity

public class TabActivity3 extends TabActivity {

 private TabHost mTabHost;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

       

        mTabHost = getTabHost();

        LayoutInflater.from(this).inflate(R.layout.activity_tab_3,  

          mTabHost.getTabContentView(), true);  

       

      //在TabHost创建标签，然后设置：标题／图标／标签页布局  

        mTabHost.addTab(mTabHost.newTabSpec("tab1").setIndicator("标签1").setContent(R.id.tab1));    

        mTabHost.addTab(mTabHost.newTabSpec("tab2").setIndicator("标签2").setContent(R.id.tab2));

        mTabHost.addTab(mTabHost.newTabSpec("tab3").setIndicator("标签3").setContent(R.id.tab3));

    }

}