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class StopwatchFormula : Formula<Unit, StopwatchFormula.State, StopwatchRenderModel> { | |
data class State( | |
val timePassedInMillis: Long, | |
val isRunning: Boolean | |
) | |
override fun initialState(input: Unit): State = State( | |
timePassedInMillis = 0, | |
isRunning = false |
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fun formatTimePassed(timePassedInMillis: Long): String { | |
// TODO: actually format it | |
return "${timePassedInMillis}ms" | |
} |
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override fun evaluate( | |
input: Unit, | |
state: State, | |
context: FormulaContext<State> | |
): Evaluation<StopwatchRenderModel> { | |
return Evaluation( | |
renderModel = ..., | |
updates = context.updates { | |
if (state.isRunning) { | |
val incrementTimePassedEvents = RxStream.fromObservable { |
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class StopwatchActivity : FragmentActivity() { | |
private val disposables = CompositeDisposable() | |
override fun onCreate(savedInstanceState: Bundle?) { | |
super.onCreate(savedInstanceState) | |
setContentView(R.layout.stopwatch_activity) | |
val renderView = StopwatchRenderView(findViewById(R.id.activity_content)) | |
val renderModels: Observable<StopwatchRenderModel> = |
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fun startStopButton(state: State, context: FormulaContext<State>): ButtonRenderModel { | |
return if (state.isRunning) { | |
ButtonRenderModel( | |
text = "Stop", | |
onSelected = context.callback { | |
transition(state.copy(isRunning = false)) | |
} | |
) | |
} else { | |
ButtonRenderModel( |
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class StopwatchFormula : Formula<Unit, StopwatchFormula.State, StopwatchRenderModel> { | |
data class State( | |
val isRunning: Boolean | |
) | |
override fun initialState(input: Unit): State = State( | |
isRunning = false | |
) | |
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class StopwatchFormula : Formula<Unit, StopwatchFormula.State, StopwatchRenderModel> { | |
// We will use this a little later. | |
object State | |
override fun initialState(input: Unit): State = State | |
override fun evaluate( | |
input: Unit, | |
state: State, | |
context: FormulaContext<State> |
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data class State( | |
val isRunning: Boolean | |
) |
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Observable | |
.interval(1, TimeUnit.MILLISECONDS) | |
.observeOn(AndroidSchedulers.mainThread()) |
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