动态加载HorizontalSrcollView与ViewPager关联使用

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先在布局中定义

      <HorizontalScrollView
            android:id="@+id/hsv"
            android:layout_width="mach_content"
            android:layout_height="0dp"

android:layout_weight="1"

        android:scrollbars="none" >

            <LinearLayout
                android:id="@+id/ll"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="horizontal" >
            </LinearLayout>
        </HorizontalScrollView>

      <android.support.v4.view.ViewPager
        android:id="@+id/vp"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="10" />

在Activity中先找到控件

   // 添加TextView
   private void addHorizontalSrcollView() {
       for (int i = 0; i < titleName.length; i++) {
           TextView tv = new TextView(this);
           tv.setId(i);
           tv.setText(titleName[i]);
           tv.setTextSize(18);
           tv.setOnClickListener(this);
           if (i == 0) {
               tv.setTextColor(Color.RED);
           } else {
               tv.setTextColor(Color.BLACK);
           }
           LayoutParams lp = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
           lp.setMargins(25, 10, 25, 10);
           mLl.addView(tv, lp);
           listText.add(tv);
       }
   }

      private void initHorizontalScrollView() {
       // 得到屏幕的宽度
       mScreenWidth = getResources().getDisplayMetrics().widthPixels;
       listText = new ArrayList<TextView>();
       addHorizontalSrcollView();
       // 设置ViewPager的适配
       mViewPager.setAdapter(new FragmentPagerAdapter(getSupportFragmentManager()) {

           @Override
           public int getCount() {
               return listText.size();
           }

           @Override
           public Fragment getItem(int arg0) {
               return MyFragment.getInstance(RequestUrlAddress.address[arg0]);
           }
       });
       // ViewPager的滑动监听
       mViewPager.setOnPageChangeListener(new OnPageChangeListener() {

           @Override
           public void onPageSelected(int arg0) {
               for (int i = 0; i < titleName.length; i++) {
                   TextView tv = listText.get(i);
                   if (i == arg0) {
                       tv.setTextColor(Color.RED);
                   } else {
                       tv.setTextColor(Color.BLACK);
                   }
               }
               // 设置居中
               View curTabView = mLl.getChildAt(arg0);
               // 获取x的值
               int left = curTabView.getLeft();
               int width = curTabView.getMeasuredWidth();
               int toX = left + width / 2 - mScreenWidth / 2;
               // 滚动
               mHsv.smoothScrollTo(toX, 0);
           }

           @Override
           public void onPageScrolled(int arg0, float arg1, int arg2) {

           }

           @Override
           public void onPageScrollStateChanged(int arg0) {

           }
       });
   }

     // 点击ScrollView的每一项跳转到相应的fragment中
   @Override
   public void onClick(View v) {
       mViewPager.setCurrentItem(v.getId());
   }

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