allprojects {
repositories {
    jcenter()
    maven { url 'https://jitpack.io' }// 添加jitpack.依赖
}

	compile 'com.github.niezhiyang:NGallery:v1.0.1'

<RelativeLayout
    android:id="@+id/root"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:clipChildren="false"
    >
    <!--是否限制子View在其范围内，我们将其值设置为false后那么当子控件的高度高于父控件时也会完全显示,而不会被压缩-->
    <com.nie.ngallerylibrary.GalleryViewPager
        android:id="@+id/viewpager"
        android:layout_width="200dp"
        android:layout_height="200dp"
        android:layout_centerInParent="true"
        android:clipChildren="false"
        android:overScrollMode="never"/>
</RelativeLayout>

 	mViewPager = (GalleryViewPager) findViewById(R.id.viewpager);//找到这个控件
    mViewPager.setPageTransformer(true, new ScalePageTransformer());//设置PageTransformer,本库只有一个ScalePageTransformer,如果这个ScalePageTransformer满足不了您的需求,您可以自己写一个PageTransformer
    findViewById(R.id.root).setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            return mViewPager.dispatchTouchEvent(event);
        }
    });//找到这个父控件设置他的listener

    mPagerAdapter = new SimpleAdapter(this);//初始化adapter
    mViewPager.setAdapter(mPagerAdapter);//设置adapter

  public class SimpleAdapter extends MyPageradapter {

    private final List<Integer> mList;
    private final Context mContext;

    public SimpleAdapter(Context context) {
        mList = new ArrayList<>();
        mContext = context;
    }

    public void addAll(List<Integer> list) {
        mList.addAll(list);
        notifyDataSetChanged();
    }

    @Override
    public View getView(final int position, View convertView, ViewGroup container) {
        ImageView imageView = null;
        if (convertView == null) {
            imageView = new ImageView(mContext);
        } else {
            imageView = (ImageView) convertView;
        }
        imageView.setTag(position);
        imageView.setImageResource(mList.get(position));
        imageView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if ((mViewPager.getCurrentItem() ) == position) {
                    Toast.makeText(mContext, "点击的位置是:::"+position, Toast.LENGTH_SHORT).show();
                }

            }
        });

        return imageView;
    }

    @Override
    public int getCount() {
        return mList.size();
    }
}