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afterChange

protected open fun afterChange(
    property: KProperty<*>, 
    oldValue: T, 
    newValue: T)

The callback which is called after the change of the property is made. The value of the property has already been changed when this callback is invoked.

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Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.properties/-observable-property/after-change.html