AndroidViewPager无限循环实现底部小圆点动态滑动

<&＃63;xml version="1.0" encoding="utf-8"&＃63;> 
 
 
  
  
 
  
 
  
 
   
   
 
   
  
 

package com.lian.viewpagertest; 
 
import android.os.Bundle; 
import android.support.v4.view.PagerAdapter; 
import android.support.v4.view.ViewPager; 
import android.support.v7.app.AppCompatActivity; 
import android.util.Log; 
import android.view.View; 
import android.view.ViewGroup; 
import android.view.ViewTreeObserver; 
import android.widget.ImageView; 
import android.widget.LinearLayout; 
import android.widget.RelativeLayout; 
import android.widget.TextView; 
 
import java.util.ArrayList; 
import java.util.List; 
 
public class MainActivity extends AppCompatActivity { 
 
 private ViewPager mViewPager; 
 private TextView mTextView; 
 private LinearLayout mLinearLayout; 
 private View mView; 
 private List mDataList; 
 private int diatance; 
 
 @Override 
 protected void onCreate(Bundle savedInstanceState) { 
  super.onCreate(savedInstanceState); 
  initView(); 
  initData(); 
  initEvent(); 
 } 
 
 /** 
  * 初始化数据 
  */ 
 
 private void initData() { 
  int[] sorce = new int[]{R.drawable.a,R.drawable.b,R.drawable.c,R.drawable.d,R.drawable.e}; 
 
  mDataList = new ArrayList(); 
 
  for (int i = 0;i