借助UltraViewPager搭建一个轮播图

UltraViewPager

UltraViewPager是一个封装多种特性的ViewPager，主要是为多页面切换场景提供统一解决方案。
github地址
- 横向滑动
- 纵向滑动
- 支持一屏内显示多页
- 支持循环滚动
- 支持定时滚动，计时器使用Handler实现
- setRatio按比例显示UltraviewPager
- 内置indicator，只需简单设置几个属性就可以完成展示，支持圆点和Icon；
- 内置两种页面切换动效
- 以上特性支持同时使用；

展示一种比较独特的

<com.qw.dp.qwapplication.view.ultraviewpager.UltraViewPager
        android:id="@+id/ultra_viewpager_DepthTransformer_Demo"
        android:layout_width="match_parent"
        android:layout_height="160dp"
        android:background="@android:color/white" />
private UltraViewPager ultra_viewpager_DepthTransformer_Demo;
ultra_viewpager_DepthTransformer_Demo = (UltraViewPager) findViewById(R.id.ultra_viewpager_DepthTransformer_Demo);
private void initDepthTransformer_Demo() {
        ultra_viewpager_DepthTransformer_Demo.setScrollMode(UltraViewPager.ScrollMode.HORIZONTAL);
        adapter = new UltraPagerAdapter(ViewPagerActivity.this);
        ultra_viewpager_DepthTransformer_Demo.setAdapter(adapter);
        ultra_viewpager_DepthTransformer_Demo.setMultiScreen(0.6f);
        ultra_viewpager_DepthTransformer_Demo.setPageTransformer(false, new UltraDepthScaleTransformer());
        //内置indicator初始化
        ultra_viewpager_DepthTransformer_Demo.initIndicator();
        //设置indicator样式
        ultra_viewpager_DepthTransformer_Demo.getIndicator()
                .setOrientation(UltraViewPager.Orientation.HORIZONTAL)
                .setFocusColor(Color.GREEN)
                .setNormalColor(Color.WHITE)
                .setRadius((int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 5, getResources().getDisplayMetrics()));
        //设置indicator对齐方式
        ultra_viewpager_DepthTransformer_Demo.getIndicator().setGravity(Gravity.CENTER_HORIZONTAL | Gravity.BOTTOM);
        ultra_viewpager_DepthTransformer_Demo.getIndicator().setMargin(0,0,0,20);
        //构造indicator,绑定到UltraViewPager
        ultra_viewpager_DepthTransformer_Demo.getIndicator().build();
        ultra_viewpager_DepthTransformer_Demo.setInfiniteLoop(true);
        //设定页面自动切换  间隔2秒
        ultra_viewpager_DepthTransformer_Demo.setAutoScroll(2000);
    }
public class UltraPagerAdapter extends PagerAdapter {
    private Context context;

    public UltraPagerAdapter(Context context) {
        this.context = context;
    }

    @Override
    public int getCount() {
        return 5;
    }

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

    @Override
    public Object instantiateItem(ViewGroup container, int position) {
        LinearLayout linearLayout = (LinearLayout) LayoutInflater.from(container.getContext()).inflate(R.layout.layout_child, null);
        ImageView iv = (ImageView) linearLayout.findViewById(R.id.iv);
        linearLayout.setId(R.id.item_id);
        iv.setId(R.id.item_id);
        switch (position) {
            case 0:
//                linearLayout.setBackgroundColor(Color.parseColor("#2196F3"));
//Glide.with(context).load("http://img.taodiantong.cn/v55183/infoimg/2013-07/130720115322ky.jpg").into(iv);
                Glide.with(context).load(R.drawable.home_banner_1).into(iv);
                break;
            case 1:
//Glide.with(context).load("http://pic30.nipic.com/20130626/8174275_085522448172_2.jpg").into(iv);
                Glide.with(context).load(R.drawable.home_banner_1).into(iv);
//                linearLayout.setBackgroundColor(Color.parseColor("#673AB7"));
                break;
            case 2:
             //Glide.with(context).load("http://pic18.nipic.com/20111215/577405_080531548148_2.jpg").into(iv);
                Glide.with(context).load(R.drawable.home_banner_1).into(iv);
//                linearLayout.setBackgroundColor(Color.parseColor("#009688"));
                break;
            case 3:                //Glide.with(context).load("http://pic15.nipic.com/20110722/2912365_092519919000_2.jpg").into(iv);
                Glide.with(context).load(R.drawable.home_banner_1).into(iv);
//                linearLayout.setBackgroundColor(Color.parseColor("#607D8B"));
                break;
            case 4:                //Glide.with(context).load("http://pic.58pic.com/58pic/12/64/27/55U58PICrdX.jpg").into(iv);
                Glide.with(context).load(R.drawable.home_banner_1).into(iv);
//                linearLayout.setBackgroundColor(Color.parseColor("#F44336"));
                break;
        }
        container.addView(linearLayout);
        return linearLayout;
    }

    @Override
    public void destroyItem(ViewGroup container, int position, Object object) {
        LinearLayout view = (LinearLayout) object;
        container.removeView(view);
    }
}

练手结束，上面是demo上的一些效果展示，down下代码好好研究吧，总有一款适合你的。