Android ViewPager实现左右滑动翻页效果

package com.example.demo; 
 
import java.util.ArrayList; 
 
import android.app.Activity; 
import android.content.Context; 
import android.os.Bundle; 
import android.support.v4.view.PagerAdapter; 
import android.support.v4.view.ViewPager; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.TextView; 
 
 
public class MainActivity extends Activity { 
 
 @Override 
 protected void onCreate(Bundle savedInstanceState) { 
  super.onCreate(savedInstanceState); 
  setContentView(R.layout.activity_main); 
   
  ViewPager mViewPager=(ViewPager) findViewById(R.id.viewPager); 
   
  PagerAdapter mPagerAdapter=new MyPagerAdapter(this); 
   
  mViewPager.setAdapter(mPagerAdapter); 
 } 
  
 private class MyPagerAdapter extends PagerAdapter{ 
 
  private Context context; 
   
  private ArrayList views; 
   
  public MyPagerAdapter(Context context){ 
   this.context=context; 
   views=new ArrayList(); 
   for(int i=0;i