public class MeasureUtil {    /**     * 获取状态栏的高度     */    public static int getStatusBarHeight(Context context) {        int result = 0;        int resourceId = context.getResources().getIdentifier("status_bar_height", "dimen", "android");        if (resourceId > 0) {            result = context.getResources().getDimensionPixelSize(resourceId);        }        return result;    }    /**     * 获取导航栏的高度     */    public static int getNavigationBarHeight(Context context) {        int result = 0;        int resourceId = context.getResources().getIdentifier("navigation_bar_height", "dimen", "android");        if (resourceId > 0) {            result = context.getResources().getDimensionPixelSize(resourceId);        }        return result;    }        /**     * 获取屏幕尺寸     */    public static Point getScreenSize(Context context) {        // 获取屏幕宽高        WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);        Point screenSize = new Point();        wm.getDefaultDisplay().getSize(screenSize);        return screenSize;    }    /**     * 根据手机的分辨率从 dp 的单位 转成为 px(像素)     */    public static int dip2px(Context context, float dpValue) {        final float scale = context.getResources().getDisplayMetrics().density;        return (int) (dpValue * scale + 0.5f);    }    /**     * 根据手机的分辨率从 px(像素) 的单位 转成为 dp     */    public static int px2dip(Context context, float pxValue) {        final float scale = context.getResources().getDisplayMetrics().density;        return (int) (pxValue / scale + 0.5f);    }    /**     * 将px值转换为sp值，保证文字大小不变     */    public static int px2sp(Context context, float pxValue) {        final float fontScale = context.getResources().getDisplayMetrics().scaledDensity;        return (int) (pxValue / fontScale + 0.5f);    }    /**     * 将sp值转换为px值，保证文字大小不变     */    public static int sp2px(Context context, float spValue) {        final float fontScale = context.getResources().getDisplayMetrics().scaledDensity;        return (int) (spValue * fontScale + 0.5f);    }    /**     * 百分比转换为实际的像素值（宽度）     */    public static int per2px(Resources res, double per) {        if (null == res) {            return 0;        }        if (per < 0 || per > 1) {            return 0;        }        DisplayMetrics dm = res.getDisplayMetrics();        return (int) Math.ceil(dm.widthPixels * per);    }

}

---------------------------------------------------------------------

布局代码：

xmlns:android="http://schemas.android.com/apk/res/android"             android:orientation="vertical"             android:layout_width="match_parent"             android:layout_height="match_parent">            android:id="@+id/adv_pager"        android:layout_width="match_parent"        android:layout_height="256dp" />            android:layout_gravity="bottom"        android:layout_width="match_parent"        android:layout_height="30dp">                    android:layout_centerHorizontal="true"            android:id="@+id/viewGroup"            android:layout_width="wrap_content"            android:layout_centerVertical="true"            android:gravity="center_horizontal"            android:orientation="horizontal"            android:layout_height="wrap_content" />

自定义View:

public class BannerView extends LinearLayout {    /**     * 上下文     */    private Context mContext;    /**     * 图片轮播视图     */    private ViewPager mAdvPager = null;    /**     * 滚动图片视图适配器     */    private ImageCycleAdapter mAdvAdapter;    /**     * 图片轮播指示器控件     */    private LinearLayout mGroup;    /**     * 图片轮播指示器-个图     */    private ImageView mImageView = null;    /**     * 滚动图片指示器-视图列表     */    private ImageView[] mImageViews = null;    /**     * 图片滚动当前图片下标     */    private int mImageIndex = 0;    /**     * @param context     */    public BannerView(Context context) {        super(context);    }    /**     * @param context     * @param attrs     */    public BannerView(Context context, AttributeSet attrs) {        super(context, attrs);        mContext = context;        LayoutInflater.from(context).inflate(R.layout.banner_layout, this);        mAdvPager = (ViewPager) findViewById(R.id.adv_pager);        mAdvPager.addOnPageChangeListener(new GuidePageChangeListener());        mAdvPager.setOnTouchListener(new OnTouchListener() {            @Override            public boolean onTouch(View v, MotionEvent event) {                switch (event.getAction()) {                    case MotionEvent.ACTION_UP:                        // 开始图片滚动                        startImageTimerTask();                        break;                    default:                        // 停止图片滚动                        stopImageTimerTask();                        break;                }                return false;            }        });        // 滚动图片右下指示器视图        mGroup = (LinearLayout) findViewById(R.id.viewGroup);    }    /**     * 设置图片数据源     * @param imageUrlList 图片集合(数据类型：String->URL or  Integer->ResourceID)     * @param imageCycleViewListener     */    public void setImageResources(ArrayList imageUrlList, ImageCycleViewListener imageCycleViewListener) {        // 清除所有子视图        mGroup.removeAllViews();        // 图片广告数量        final int imageCount = imageUrlList.size();        mImageViews = new ImageView[imageCount];        for (int i = 0; i < imageCount; i++) {            mImageView = new ImageView(mContext);            int imageParams = MeasureUtil.dip2px(mContext,7);// XP与DP转换，适应不同分辨率            int imagePadding = MeasureUtil.dip2px(mContext,5);            LinearLayout.LayoutParams lp = new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);            lp.width = imageParams;            lp.height = imageParams;            mImageViews[i] = mImageView;            if (i == 0) {                mImageViews[i].setBackgroundResource(R.drawable.point_enable);            } else {                lp.leftMargin = imagePadding;                mImageViews[i].setBackgroundResource(R.drawable.point_disable);            }            mGroup.addView(mImageViews[i], i, lp);        }        mAdvAdapter = new ImageCycleAdapter(mContext, imageUrlList, imageCycleViewListener);        if(imageCount>1){            mImageIndex=100*imageCount;        }        mAdvPager.setAdapter(mAdvAdapter);        mAdvPager.setCurrentItem(mImageIndex,false);        startImageTimerTask();    }    /**     * 开始轮播(手动控制自动轮播与否，便于资源控制)     */    public void startImageCycle() {        startImageTimerTask();    }    /**     * 暂停轮播——用于节省资源     */    public void pushImageCycle() {        stopImageTimerTask();    }    /**     * 开始图片滚动任务     */    private void startImageTimerTask() {        stopImageTimerTask();        // 图片每3秒滚动一次        mHandler.postDelayed(mImageTimerTask, 3000);    }    /**     * 停止图片滚动任务     */    private void stopImageTimerTask() {        mHandler.removeCallbacks(mImageTimerTask);    }    private Handler mHandler = new Handler();    /**     * 图片自动轮播Task     */    private Runnable mImageTimerTask = new Runnable() {        @Override        public void run() {            if (mImageViews != null) {                mAdvPager.setCurrentItem(++mImageIndex);            }        }    };    /**     * 轮播图片状态监听器     *     * @author minking     */    private final class GuidePageChangeListener implements ViewPager.OnPageChangeListener {        @Override        public void onPageScrollStateChanged(int state) {        }        @Override        public void onPageScrolled(int arg0, float arg1, int arg2) {        }        @Override        public void onPageSelected(int index) {            mImageIndex =index;            index=index%mAdvAdapter.getmAdList().size();            startImageTimerTask(); // 开始下次计时            // 设置图片滚动指示器背景            for (int i = 0; i < mImageViews.length; i++) {                if (index == i) {                    mImageViews[i].setBackgroundResource(R.drawable.point_enable);                }else{                    mImageViews[i].setBackgroundResource(R.drawable.point_disable);                }            }        }    }    private class ImageCycleAdapter extends PagerAdapter {        /**         * 图片资源列表         */        private ArrayList mAdList = new ArrayList<>();        /**         * 广告图片点击监听器         */        private ImageCycleViewListener mImageCycleViewListener;        private Context mContext;        public ImageCycleAdapter(Context context, ArrayList adList, ImageCycleViewListener imageCycleViewListener) {            mContext = context;            mAdList = adList;            mImageCycleViewListener = imageCycleViewListener;        }        @Override        public int getCount() {            if (mAdList != null) {                if (mAdList.size() > 1) {                    return Integer.MAX_VALUE;                } else {                    return mAdList.size();                }            }            return 0;        }        @Override        public boolean isViewFromObject(View view, Object obj) {            return view == obj;        }        @Override        public Object instantiateItem(ViewGroup container, int position) {            position = position % mAdList.size();            Object item = mAdList.get(position);            ImageView imageView = new ImageView(mContext);            imageView.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));            imageView.setScaleType(ImageView.ScaleType.FIT_XY);            // 设置图片点击监听            final int finalPosition = position;            imageView.setOnClickListener(new OnClickListener() {                @Override                public void onClick(View v) {                    mImageCycleViewListener.onImageClick(finalPosition, v);                }            });            imageView.setOnTouchListener(new OnTouchListener() {                @Override                public boolean onTouch(View v, MotionEvent event) {                    switch (event.getAction()) {                        // 停止轮播                        case MotionEvent.ACTION_DOWN:                            stopImageTimerTask();                            break;                        // 开始轮播                        case MotionEvent.ACTION_UP:                            startImageTimerTask();                            break;                        default:                            startImageTimerTask();                            break;                    }                    return false;                }            });            container.addView(imageView);            mImageCycleViewListener.displayImage(item, imageView);            return imageView;        }        @Override        public void destroyItem(ViewGroup container, int position, Object object) {            ImageView view = (ImageView) object;            container.removeView(view);        }        public ArrayList getmAdList() {            return mAdList;        }    }    /**     * 轮播控件的监听事件     */    public interface ImageCycleViewListener {        /**         * 加载图片资源         */        void displayImage(Object imageURL, ImageView imageView);        /**         * 单击图片事件         */        void onImageClick(int position, View imageView);    }}   
   
   
应用：
   
布局引用自定义View。。
   
MainActivity代码：
   
   
setContentView(R.layout.activity_pro_detail);BannerAdapterView bannerAdapterView = (BannerAdapterView) findViewById(R.id.banada_view); ArrayList list=new ArrayList<>();list.add(R.drawable.p2);list.add(R.drawable.p3);list.add("");  //网络加载list.add(AppConfig.PROJECT + mDetail.getImage());//这个也是网络加载,Retrofit请求到实体类后运用到轮播bannerAdapterView.setImageResources(list, new BannerAdapterView.ImageCycleViewListener() {    @Override    public void displayImage(Object imageURL, ImageView imageView) {        if (imageURL instanceof String) {            //String类型的字符串，网络url 采用Glide或者picasso框架加载            Glide.with(WtuActivity.this).load((String) imageURL).into(imageView);        } else if (imageURL instanceof Integer) {            imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);            //int类型数据 resource id            imageView.setImageResource((Integer) imageURL);        }    }    @Override    public void onImageClick(int position, View imageView) {//点击事件    }});   
   
   









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