Val cannot be reassigned error even though I have already changed it to Var Kotlin

Issue

I am using Kotlin in IntelliJ.

I have this short and simple bit of code

        val myLayoutView = v.findViewById(R.id.layout) as LinearLayout
        var myImageView = v.findViewById(R.id.image) as ImageView
        val myLabelView =v.findViewById(R.id.label) as TextView

        var app = getItem(position) as AppObject
        myLabelView.text = app.appName
        myImageView.drawable = app.appImage

Why in the WORLD is it telling me that on the line:

        myImageView.drawable = app.appImage

that "Val cannot be reassigned" Any instance of val has been COMPLETELY changed to var with respect to the variables mentioned.

I have already changed variables with the same name in other classes just to be sure and even changed every single variable in the class to var and I STILL get this error.

Does it have to do with the nature of drawable?

What am I missing or doing wrong to get this error and how do I fix it?

Thank you!

Solution

As per the Kotlin Properties and Fields documentation, a val property is a property with a getter, but no setter. A var property has both a getter and setter.

If you look at ImageView, it has a getDrawable(), but no setDrawable() method. Kotlin automatically converts the getters in Java classes into properties, which is why you can use myImageView.drawable at all. However, since there is no setDrawable() method, that is a val property.

You'll need to use methods such as setImageDrawable() to set the image.

Answered By - ianhanniballake