/**
   * banner的图片轮播事件初始化
   */
  private void initCycleEvent() {
    //根据解析到的图片的个数，初始化小圆点
    LinearLayout.LayoutParams params;
    for (int i = 0; i < imageViewList.size(); i++) {
      View dot = new View(getActivity());
      dot.setBackgroundResource(R.drawable.point_background); 
      params = new LinearLayout.LayoutParams(15, 15);
      params.leftMargin = 10;
      dot.setLayoutParams(params);
      dot.setEnabled(false);
      ll_dot_group.addView(dot);
    }

    //定义匿名适配器
    adapter = new PagerAdapter() {
      @Override
      public int getCount() {
        //因为要实现轮播，所以将数值设置的大一些
        return Integer.MAX_VALUE;
      }

      @Override
      public boolean isViewFromObject(View view, Object object) {
        return view == object;
      }

      @Override
      public Object instantiateItem(ViewGroup container, final int position) {
        imageViewList.get(position % imageViewList.size()).setOnClickListener(new View.OnClickListener() {
          @Override
          public void onClick(View v) {
            Intent intent = new Intent(getActivity(), WebViewActivity.class);
            intent.putExtra("url", bannerList.get(position % imageViewList.size()).getUrl());
            startActivity(intent);
          }
        });
        container.addView(imageViewList.get(position % imageViewList.size()));
        return imageViewList.get(position % imageViewList.size());
      }

      @Override
      public void destroyItem(ViewGroup container, int position, Object object) {
        container.removeView(imageViewList.get(position % imageViewList.size()));
      }
    };
    vp_banner.setAdapter(adapter);
    //初始化第一个page页和第一个小圆点
    vp_banner.setCurrentItem(0);
    ll_dot_group.getChildAt(0).setEnabled(true);
    //为viewPager设置监听
    vp_banner.addOnPageChangeListener(new MyPageChangeListener());
  }

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
  <item android:drawable="@drawable/point_bg_enable" android:state_enabled="true"/>
   <item android:drawable="@drawable/point_bg_normal" android:state_enabled="false"/>

</selector>

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
  android:shape="oval" >

  <corners android:radius="3dp" />

  <solid android:color="#AAFFFFFF" />

</shape>

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
  android:shape="oval" >

  <corners android:radius="3dp" />

  <solid android:color="#55000000" />

</shape>

/**
   * banner的图片轮播事件初始化
   */
  private void initCycleEvent() {
    //根据解析到的图片的个数，初始化小圆点
    LinearLayout.LayoutParams params;
    for (int i = 0; i < imageViewList.size(); i++) {
      View dot = new View(getActivity());
      dot.setBackgroundResource(R.drawable.point_background);
      params = new LinearLayout.LayoutParams(15, 15);
      params.leftMargin = 10;
      dot.setLayoutParams(params);
      dot.setEnabled(false);
      ll_dot_group.addView(dot);
    }

    //定义匿名适配器
    adapter = new PagerAdapter() {
      @Override
      public int getCount() {
        //因为要实现轮播，所以将数值设置的大一些
        return Integer.MAX_VALUE;
      }

      @Override
      public boolean isViewFromObject(View view, Object object) {
        return view == object;
      }

      @Override
      public Object instantiateItem(ViewGroup container, final int position) {
        imageViewList.get(position % imageViewList.size()).setOnClickListener(new View.OnClickListener() {
          @Override
          public void onClick(View v) {
            Intent intent = new Intent(getActivity(), WebViewActivity.class);
            intent.putExtra("url", bannerList.get(position % imageViewList.size()).getUrl());
            startActivity(intent);
          }
        });
        container.addView(imageViewList.get(position % imageViewList.size()));
        return imageViewList.get(position % imageViewList.size());
      }

      @Override
      public void destroyItem(ViewGroup container, int position, Object object) {
        container.removeView(imageViewList.get(position % imageViewList.size()));
      }
    };
    vp_banner.setAdapter(adapter);
    //初始化第一个page页和第一个小圆点
    vp_banner.setCurrentItem(0);
    ll_dot_group.getChildAt(0).setEnabled(true);
    //为viewPager设置监听
    vp_banner.addOnPageChangeListener(new MyPageChangeListener());
  }

/**
   * 开启轮播线程的方法
   */
  private void startBannerScrollThread() {
    new Thread(new Runnable() {
      @Override
      public void run() {
        //先判断是否停止轮播
        while (!isStop) {
          SystemClock.sleep(2000);
          handler.post(new Runnable() {
            @Override
            public void run() {
              int newindex = vp_banner.getCurrentItem() + 1;
              vp_banner.setCurrentItem(newindex);
            }
          });
        }
      }
    }).start();
  }

   /**
* viewPager滑动监听事件
   */
  class MyPageChangeListener implements ViewPager.OnPageChangeListener {

    @Override
    public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

    }

    @Override
    public void onPageSelected(int position) {
      //获取新的一页的位置
      int newPosition = position % imageViewList.size();
      //将上一个小圆点的背景设为默认那个
      ll_dot_group.getChildAt(previousPointEnale).setEnabled(false);
      //设置当前page页的小圆点样式
      ll_dot_group.getChildAt(newPosition).setEnabled(true);
      //把新的位置赋值给previousPointEnale
      previousPointEnale = newPosition;
    }

    @Override
    public void onPageScrollStateChanged(int state) {

    }
  }