TabWidget：标签可以滚动

package com.ceict.test;

import android.app.TabActivity;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.widget.TabHost;
import android.widget.TabWidget;

public class MainActivity extends TabActivity {
 TabHost tabhost;

 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main);
  tabhost = getTabHost();

  // 7个标签
  tabhost.addTab(tabhost.newTabSpec(0 + "").setIndicator("测试")
    .setContent(R.id.textview01));
  tabhost.addTab(tabhost.newTabSpec(1 + "").setIndicator("标题")
    .setContent(R.id.textview01));
  tabhost.addTab(tabhost.newTabSpec(2 + "").setIndicator("办公")
    .setContent(R.id.textview01));
  tabhost.addTab(tabhost.newTabSpec(3 + "").setIndicator("通讯")
    .setContent(R.id.textview01));
  tabhost.addTab(tabhost.newTabSpec(4 + "").setIndicator("邮件")
    .setContent(R.id.textview01));
  tabhost.addTab(tabhost.newTabSpec(5 + "").setIndicator("私信")
    .setContent(R.id.textview01));
  tabhost.addTab(tabhost.newTabSpec(6 + "").setIndicator("通知")
    .setContent(R.id.textview01));

  TabWidget tabWidget = tabhost.getTabWidget();
  // 标签的个数
  int count = tabWidget.getChildCount();
  // 获取手机屏幕的宽高
  DisplayMetrics displayMetrics = new DisplayMetrics();
  getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
  int screenWidth = displayMetrics.widthPixels;
  int screenheight = displayMetrics.heightPixels;
  // 我的手机是：320*480
  System.out.println(screenWidth + "*" + screenheight);

  if (count >= 4) {
   for (int i = 0; i < count; i++) {
    // 设置每个标签的宽度，为屏幕的1/4
    tabWidget.getChildTabViewAt(i).setMinimumWidth(
      (screenWidth) / 4);
   }
  }
 }
}

 

<?xml version="1.0" encoding="utf-8"?>
<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" >

        <RelativeLayout
            android:layout_width="fill_parent"
            android:layout_height="wrap_content" >

            <!-- 水平滚动 -->

            <HorizontalScrollView
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:layout_toLeftOf="@+id/next_button"
                android:layout_toRightOf="@+id/up_button"
                android:fillViewport="true"
                android:scrollbars="none" >

                <TabWidget
                    android:id="@android:id/tabs"
                    android:layout_width="fill_parent"
                    android:layout_height="wrap_content" />
            </HorizontalScrollView>
        </RelativeLayout>

        <!-- 帧布局 -->

        <FrameLayout
            android:id="@android:id/tabcontent"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent" >

            <TextView
                android:id="@+id/textview01"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content" />

            <TextView
                android:id="@+id/textview02"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content" />

            <TextView
                android:id="@+id/textview03"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content" />

            <TextView
                android:id="@+id/textview04"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content" />

            <TextView
                android:id="@+id/textview05"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content" />
        </FrameLayout>
    </LinearLayout>

</TabHost>