Glide库的使用

问题1：如何用glide来加载长图，在我的另外一个文章中有，如下：

Glide加载长图方法

问题2：如何用glide来设置圆角图片，代码如下：

RequestOptions requestOptions=RequestOptions.centerCropTransform().optionalTransform(new MyTransition(context));
Glide.with(context).applyDefaultRequestOptions(requestOptions).load(ActivityUtils.url_request + list.get(position).getContentPictures().get(0)).into(holder_one_image.paihang_image);

MyTransition.java代码如下：

public class MyTransition extends BitmapTransformation{
    private static float radius = 0f;

    public MyTransition(Context context) {
        this(context, 4);
    }

    public MyTransition(Context context, int dp) {
        super(context);
        this.radius = Resources.getSystem().getDisplayMetrics().density * dp;
    }

    @Override
    protected Bitmap transform(BitmapPool pool, Bitmap toTransform,
                               int outWidth, int outHeight) {
        return roundCrop(pool, toTransform);
    }

    private Bitmap roundCrop(BitmapPool pool, Bitmap source) {
        if (source == null)
            return null;

        Bitmap result = pool.get(source.getWidth(), source.getHeight(),
                Bitmap.Config.ARGB_8888);
        if (result == null) {
            result = Bitmap.createBitmap(source.getWidth(), source.getHeight(),
                    Bitmap.Config.ARGB_8888);
        }

        Canvas canvas = new Canvas(result);
        Paint paint = new Paint();
        paint.setShader(new BitmapShader(source, BitmapShader.TileMode.CLAMP,
                BitmapShader.TileMode.CLAMP));
        paint.setAntiAlias(true);
        RectF rectF = new RectF(0f, 0f, source.getWidth(), source.getHeight());
        canvas.drawRoundRect(rectF, radius, radius, paint);
        return result;
    }

    @Override
    public void updateDiskCacheKey(MessageDigest messageDigest) {

    }
}

参考文章如下：

https://blog.csdn.net/zhourui_1021/article/details/75089514 (这篇文章里面还有加载圆角图片的方法)

当然还有更加方便的第三方库来通过glide快速加载各种形状的图片，依赖如下：

compile 'jp.wasabeef:glide-transformations:2.0.1'

参考文章如下：

https://www.cnblogs.com/qianyukun/p/6867436.html