Is there a good way to get the KProperty for a delegate when it's initialized? I'm trying to simplif...

# getting-started

[Landry Norris]

Is there a good way to get the KProperty for a delegate when it's initialized? I'm trying to simplify creating variables for a software that binds UI inputs to variables. I have the get/set working binding property.name, but I need to call a method to tell the UI to create the binding. This should ideally be in the constructor.

[Landry Norris]

Right now, my delegate looks like

class UIValue(val default: Double) {
    operator fun setValue(ref: Any?, property: KProperty<*>, value: Double) {
        Library.putValue(property.name, value)
    }
    operator fun getValue(ref: Any?, property: KProperty<*>): Double {
        Library.getValue(property.name, default)
    }
}
fun uiValue(default: Double) = UIValue(default)

[Landry Norris]

I need a place to call Library.setDefault(name, value)

[Landry Norris]

For now, I'm calling this in the getter if it hasn't been called yet, and requiring that all values have a dummy getter call at the start, but I don't love that at all.

[Sam]

https://kotlinlang.org/docs/delegated-properties.html#providing-a-delegate

[Landry Norris]

Thanks. Looks like that works.