com.youth.banner:banner 把图片改成圆角

		MyImageLoader mMyImageLoader = new MyImageLoader();
 		//设置图片加载器
        mBanner.setImageLoader(mMyImageLoader);

/**
     * 图片加载类
     */
    private class MyImageLoader extends ImageLoader {
        @Override
        public void displayImage(Context context, Object path, ImageView imageView) {
            Glide.with(context).load(path).into(imageView);
        }

        /**
         * 自定义圆角类
         * @param context
         * @return
         */
        @Override
        public ImageView createImageView(Context context) {
            RoundImageView img = new RoundImageView(context);
            return img;

        }
    }

RoundImageView类

public class RoundImageView extends ImageView {


    float width,height;

    public RoundImageView(Context context) {
        this(context, null);
    }

    public RoundImageView(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public RoundImageView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        if (Build.VERSION.SDK_INT < 18) {
            setLayerType(View.LAYER_TYPE_SOFTWARE, null);
        }
    }

    @Override
    protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
        super.onLayout(changed, left, top, right, bottom);
        width = getWidth();
        height = getHeight();
    }

    @Override
    protected void onDraw(Canvas canvas) {

        if (width > 12 && height > 12) {
            Path path = new Path();
            path.moveTo(12, 0);
            path.lineTo(width - 12, 0);
            path.quadTo(width, 0, width, 12);
            path.lineTo(width, height - 12);
            path.quadTo(width, height, width - 12, height);
            path.lineTo(12, height);
            path.quadTo(0, height, 0, height - 12);
            path.lineTo(0, 12);
            path.quadTo(0, 0, 12, 0);
            canvas.clipPath(path);
        }

        super.onDraw(canvas);
    }
}