MapObservable

An observable that wraps another observable and applies a mapper function to its content.

<T>

the type of the wrapped observable

<V>

the type of the mapped observable

Functions

open fun addObserver(observer: Observer<T>)

Add a new observer which is interested in updates about this value

open fun get(): V

A method to indicate whether an observer is still valid.

open fun <V> map(mapper: (T) -> V): Observable<V>

Create a new Observable which will always have the value of mapper.apply(get()) and reports on updates accordingly.

open fun observeChange(oldT: T, newT: T)

Called when the state is changed.

open fun whenChanged(observer: Observer<T>)