@Override 
public Object instantiateItem(ViewGroup container, int position) { 
 if (position < images.length) { 
  ImageView imageView = new ImageView(MainActivity.this); 
  ViewGroup.LayoutParams lp = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, dip2px(300)); 
  imageView.setLayoutParams(lp); 
  imageView.setScaleType(ImageView.ScaleType.CENTER_CROP); 
  imageView.setImageResource(images[position]); 
  container.addView(imageView); 
  return imageView; 
 } else { 
  View hintView = LayoutInflater.from(container.getContext()).inflate(R.layout.more_view, container, false); 
  slideText = (TextView) hintView.findViewById(R.id.tv); 
  arrowImage = (ImageView) hintView.findViewById(R.id.iv); 
  container.addView(hintView); 
  return hintView; 
 } 
} 

public class ViewPagerOnPageChangeListener implements ViewPager.OnPageChangeListener { 
  int currPosition = 0; // 当前滑动到了哪一页 
  boolean canJump = false; 
  boolean canLeft = true; 
  boolean isObjAnmatitor = true; 
  boolean isObjAnmatitor2 = false; 
  @Override 
  public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { 
   if (position == (images.length-1)) { 
    if (positionOffset > 0.35) { 
     canJump = true; 
     if (imageAdapter.arrowImage != null && imageAdapter.slideText != null) { 
      if (isObjAnmatitor) { 
       isObjAnmatitor = false; 
       ObjectAnimator animator = ObjectAnimator.ofFloat(imageAdapter.arrowImage, "rotation", 0f, 180f); 
       animator.addListener(new AnimatorListenerAdapter() { 
        @Override 
        public void onAnimationEnd(Animator animation) { 
         super.onAnimationEnd(animation); 
         imageAdapter.slideText.setText("松开跳到详情"); 
         isObjAnmatitor2 = true; 
        } 
       }); 
       animator.setDuration(500).start(); 
      } 
     } 
    } else if (positionOffset <= 0.35 && positionOffset > 0) { 
     canJump = false; 
     if (imageAdapter.arrowImage != null && imageAdapter.slideText != null) { 
      if (isObjAnmatitor2) { 
       isObjAnmatitor2 = false; 
       ObjectAnimator animator = ObjectAnimator.ofFloat(imageAdapter.arrowImage, "rotation", 180f, 360f); 
       animator.addListener(new AnimatorListenerAdapter() { 
        @Override 
        public void onAnimationEnd(Animator animation) { 
         super.onAnimationEnd(animation); 
         imageAdapter.slideText.setText("继续滑动跳到详情"); 
         isObjAnmatitor = true; 
        } 
       }); 
       animator.setDuration(500).start(); 
      } 
     } 
    } 
    canLeft = false; 
   } else { 
    canLeft = true; 
   } 
  } 
  @Override 
  public void onPageSelected(int position) { 
   currPosition = position; 
  } 
  @Override 
  public void onPageScrollStateChanged(int state) { 
   if (currPosition == (images.length-1) && !canLeft) { 
    if (state == ViewPager.SCROLL_STATE_SETTLING) { 
     if (canJump) { 
      Toast.makeText(MainActivity.this, "跳转啦", Toast.LENGTH_SHORT).show(); 
     } 
     new Handler().post(new Runnable() { 
      @Override 
      public void run() { 
       // 在handler里调用setCurrentItem才有效 
       viewPager.setCurrentItem(images.length-1); 
      } 
     }); 
    } 
   } 
  } 
 }