<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="match_parent"
 android:layout_height="match_parent">

 <!-- 布局中添加自定義控件-->
 <com.mahao.alex.customviewdemo.viewpager.CoverFlowViewPager
 android:id="@+id/cover"
 android:layout_width="match_parent"
 android:layout_height="wrap_content" />

</RelativeLayout>

public class MainActivity extends AppCompatActivity {

 private CoverFlowViewPager mCover;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);

 mCover = (CoverFlowViewPager) findViewById(R.id.cover);

 // 初始化數(shù)據(jù)
 List<View> list = new ArrayList<>();
 for(int i = 0;i<10;i++){
 ImageView img = new ImageView(this);
 img.setBackgroundColor(Color.parseColor("#"+getRandColorCode()));
 list.add(img);
 }
 //設(shè)置顯示的數(shù)據(jù)
 mCover.setViewList(list);
 // 設(shè)置滑動(dòng)的監(jiān)聽(tīng)，該監(jiān)聽(tīng)為當(dāng)前頁(yè)面滑動(dòng)到中央時(shí)的索引
 mCover.setOnPageSelectListener(new OnPageSelectListener() {
 @Override
 public void select(int position) {
 Toast.makeText(getApplicationContext(),position+"",Toast.LENGTH_SHORT).show();
 }
 });
 }


 /**
 * 獲取隨機(jī)顏色，便于區(qū)分
 * @return
 */
 public static String getRandColorCode(){
 String r,g,b;
 Random random = new Random();
 r = Integer.toHexString(random.nextInt(256)).toUpperCase();
 g = Integer.toHexString(random.nextInt(256)).toUpperCase();
 b = Integer.toHexString(random.nextInt(256)).toUpperCase();

 r = r.length()==1 ? "0" + r : r ;
 g = g.length()==1 ? "0" + g : g ;
 b = b.length()==1 ? "0" + b : b ;

 return r+g+b;
 }
}

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:clipChildren="false">

 <android.support.v4.view.ViewPager
 android:id="@+id/vp_conver_flow"
 android:layout_width="180dp"
 android:layout_height="260dp"
 android:layout_centerHorizontal="true"
 android:clipChildren="false" />

</RelativeLayout>

/**
 *
 * 實(shí)現(xiàn)封面瀏覽
 * Created by alex_mahao on 2016/8/25.
 */
public class CoverFlowViewPager extends RelativeLayout implements OnPageSelectListener {
 /**
 * 用于左右滾動(dòng)
 */
 private ViewPager mViewPager;

 public CoverFlowViewPager(Context context, AttributeSet attrs) {
 super(context, attrs);
 inflate(context, R.layout.widget_cover_flow,this);
 mViewPager = (ViewPager) findViewById(R.id.vp_conver_flow);
 //init();
 }

/**
 * 滾動(dòng)的適配器
 * Created by alex_mahao on 2016/8/25.
 */
public class CoverFlowAdapter extends PagerAdapter implements ViewPager.OnPageChangeListener {

 /**
 * 默認(rèn)縮小的padding值
 */
 public static int sWidthPadding;

 public static int sHeightPadding;

 /**
 * 子元素的集合
 */
 private List<View> mViewList;

 /**
 * 滑動(dòng)監(jiān)聽(tīng)的回調(diào)接口
 */
 private OnPageSelectListener listener;

 /**
 * 上下文對(duì)象
 */
 private Context mContext;

 public CoverFlowAdapter(List<View> mImageViewList, Context context) {
 this.mViewList = mImageViewList;
 mContext = context;
 // 設(shè)置padding值
 sWidthPadding = dp2px(24);
 sHeightPadding = dp2px(32);
 }

 @Override
 public void destroyItem(ViewGroup container, int position, Object object) {
 container.removeView(mViewList.get(position));
 }

 @Override
 public Object instantiateItem(ViewGroup container, int position) {
 View view = mViewList.get(position);
 container.addView(view);

 return view;
 }

 @Override
 public int getCount() {
 return mViewList == null ? 0 : mViewList.size();
 }

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

 @Override
 public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
 // 該方法回調(diào)ViewPager 的滑動(dòng)偏移量
 if (mViewList.size() > 0 && position < mViewList.size()) {
 //當(dāng)前手指觸摸滑動(dòng)的頁(yè)面,從0頁(yè)滑動(dòng)到1頁(yè) offset越來(lái)越大，padding越來(lái)越大
 Log.i("info", "重新設(shè)置padding");
 int outHeightPadding = (int) (positionOffset * sHeightPadding);
 int outWidthPadding = (int) (positionOffset * sWidthPadding);
 // 從0滑動(dòng)到一時(shí)，此時(shí)position = 0，其應(yīng)該是縮小的，符合
 mViewList.get(position).setPadding(outWidthPadding, outHeightPadding, outWidthPadding, outHeightPadding);

 // position+1 為即將顯示的頁(yè)面，越來(lái)越大
 if (position < mViewList.size() - 1) {
 int inWidthPadding = (int) ((1 - positionOffset) * sWidthPadding);
 int inHeightPadding = (int) ((1 - positionOffset) * sHeightPadding);
 mViewList.get(position + 1).setPadding(inWidthPadding, inHeightPadding, inWidthPadding, inHeightPadding);
 }
 }

 }

 @Override
 public void onPageSelected(int position) {
 // 回調(diào)選擇的接口
 if (listener != null) {
 listener.select(position);
 }
 }

 @Override
 public void onPageScrollStateChanged(int state) {

 }

 /**
 * 當(dāng)將某一個(gè)作為最中央時(shí)的回調(diào)
 *
 * @param listener
 */
 public void setOnPageSelectListener(OnPageSelectListener listener) {
 this.listener = listener;
 }


 /**
 * dp 轉(zhuǎn) px
 *
 * @param dp
 * @return
 */
 public int dp2px(int dp) {
 int px = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp, mContext.getResources().getDisplayMetrics());

 return px;
 }

}

 /**
 * 初始化方法
 */
 private void init() {
 // 構(gòu)造適配器，傳入數(shù)據(jù)源
 mAdapter = new CoverFlowAdapter(mViewList,getContext());
 // 設(shè)置選中的回調(diào)
 mAdapter.setOnPageSelectListener(this);
 // 設(shè)置適配器
 mViewPager.setAdapter(mAdapter);
 // 設(shè)置滑動(dòng)的監(jiān)聽(tīng)，因?yàn)閍dpter實(shí)現(xiàn)了滑動(dòng)回調(diào)的接口，所以這里直接設(shè)置adpter
 mViewPager.addOnPageChangeListener(mAdapter);
 // 自己百度
 mViewPager.setOffscreenPageLimit(5);

 // 設(shè)置觸摸事件的分發(fā)
 setOnTouchListener(new OnTouchListener() {
 @Override
 public boolean onTouch(View v, MotionEvent event) {
 // 傳遞給ViewPager 進(jìn)行滑動(dòng)處理
 return mViewPager.dispatchTouchEvent(event);
 }
 });
 }

 /**
 * 設(shè)置顯示的數(shù)據(jù)，進(jìn)行一層封裝
 * @param lists
 */
 public void setViewList(List<View> lists){
 if(lists==null){
 return;
 }
 mViewList.clear();
 for(View view:lists){

 FrameLayout layout = new FrameLayout(getContext());
 // 設(shè)置padding 值，默認(rèn)縮小
 layout.setPadding(CoverFlowAdapter.sWidthPadding,CoverFlowAdapter.sHeightPadding,CoverFlowAdapter.sWidthPadding,CoverFlowAdapter.sHeightPadding);
 layout.addView(view);
 mViewList.add(layout);
 }
 // 刷新數(shù)據(jù)
 mAdapter.notifyDataSetChanged();
 }

public interface OnPageSelectListener {

 void select(int position);
}

 @Override
 public void onPageSelected(int position) {
 // 回調(diào)選擇的接口
 if (listener != null) {
 listener.select(position);
 }
 }

 // 顯示的回調(diào)
 @Override
 public void select(int position) {
 if(listener!=null){
 listener.select(position);
 }
 }