ObservableWatchData
open class ObservableWatchData<T : Any>
| kotlin.Any | |
| ↳ | androidx.wear.watchface.ObservableWatchData |
An observable UI thread only data holder class.
Summary
| Protected constructors | |
|---|---|
<init>(_value: T?)An observable UI thread only data holder class. |
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| Public methods | |
|---|---|
| Unit |
addObserver(observer: Observer<T>)Adds the given observer to the observers list. |
| T |
getValueOr(default: T)Returns the value contained within this ObservableWatchData or default if there isn't one. |
| Boolean |
hasValue()Whether or not this ObservableWatchData contains a value. |
| Unit |
removeObserver(observer: Observer<T>)Removes an observer previously added by addObserver. |
| Properties | |
|---|---|
| open T |
The observable value. |
Protected constructors
<init>
protected ObservableWatchData(_value: T?)
An observable UI thread only data holder class.
| Parameters | |
|---|---|
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Public methods
addObserver
@UiThread fun addObserver(observer: Observer<T>): Unit
Adds the given observer to the observers list. The events are dispatched on the ui thread. If there's any data held within the ObservableWatchData it will be immediately delivered to the observer.
getValueOr
fun getValueOr(default: T): T
Returns the value contained within this ObservableWatchData or default if there isn't one.
removeObserver
@UiThread fun removeObserver(observer: Observer<T>): Unit
Removes an observer previously added by addObserver.
Properties
value
open var value: T
The observable value.