Glide RoundedCorners not works

问题

I am using Glide v4 to load image from internet. I transform the loaded image to be rounded corners. Sometime it doesn't work. I dont have any idea why. Any help would be appreciated.

val photoCornerRadius = 30
GlideApp.with(context)
        .load(postDetail.postImageUrls[i])
        .transform(MultiTransformation(CenterCrop(), RoundedCorners(photoCornerRadius)))
        .placeholder(R.drawable.ic_image)
        .error(R.drawable.ic_image_broken)
        .into(ivPhoto[i])

来源：https://stackoverflow.com/questions/49778043/glide-roundedcorners-not-works