Kotlin database if child is null-CodePudding

I want to call a function where drawableprofile is binding as a profile icon. I want to call it when "imageUrl" child doesn't exist.

val uid = firebaseAuth.currentUser?.uid

if (uid != null) {
    database.child(uid).get().addOnSuccessListener {
        if (it.exists()) {
            val fetchimg = it.child("imageUrl").value
            Glide.with(this).load(fetchimg).into(binding.profileIcon)
        } else if {
            database.child(uid).child("imageUrl")
            val drawableprofile = resources.getDrawable(R.drawable.ic_person)
           
            Glide.with(this).load(drawableprofile).into(binding.profileIcon)
        }
    }
}

I can't find any .isNull function etc. Thanks for help

CodePudding user response：

According to your last comment:

I need to do a placeholder until a user chooses his own profile image.

Since you're using Glide for Android to display your images, then you can simply call Glide#placeholder() like this:

Glide
    .with(this)
    .load(fetchimg) //