BindingAdapterExample.java

@BindingAdapter("android:src")
public static void loadImage(ImageView view, String url) {
    Picasso.get().load(url).fit().into(view);
}

BindingAdapterExample.kt

@BindingAdapter("android:src")
fun loadImage(view: ImageView, url: String) {
    Picasso.get().load(url).fit().into(view)
}