Resize images with Glide in a ImageView Android

Question

I have a lot of doubts about the treatment of the images in android, and I was hoping to see if you could solve them.

At this point I have an image that occupies 320

Answer 1

in glide 4.x 'override' is in 'apply' :

Glide.with(getBaseContext())
 .load(path)
 .apply(RequestOptions.placeholderOf(R.mipmap.no_wifi)
 .error(R.mipmap.no_wifi)
 .override(500,500))
 .into(mImageView);