android滑屏导航

private void initViewPager() { advPager = (ViewPager) findViewById(R.id.adv_pager); List<View> advPics = new ArrayList<View>(); ImageView img1 = new ImageView(this); img1.setBackgroundResource(R.drawable.a1); advPics.add(img1); ImageView img2 = new ImageView(this); img2.setBackgroundResource(R.drawable.a2); advPics.add(img2); ImageView img3 = new ImageView(this); img3.setBackgroundResource(R.drawable.a3); advPics.add(img3); ImageView img4 = new ImageView(this); img4.setBackgroundResource(R.drawable.a4); advPics.add(img4);