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Refine flow structure #9

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merged 1 commit into from Nov 17, 2020
Merged

Refine flow structure #9

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32 changes: 15 additions & 17 deletions lib/src/main/java/com/jintin/fancylocation/LocationFlow.kt
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Expand Up @@ -15,34 +15,32 @@ import kotlinx.coroutines.runBlocking
@ExperimentalCoroutinesApi
class LocationFlow(
private val locationProvider: ILocationProvider
) : ILocationObserver {
) {

constructor(
context: Context,
locationRequest: LocationRequest
) : this(LocationProvider(context, locationRequest))

private var sendChannel: SendChannel<LocationData>? = null

@RequiresPermission(anyOf = [Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.ACCESS_FINE_LOCATION])
fun get(): Flow<LocationData> = channelFlow {
locationProvider.requestLocationUpdates(this@LocationFlow)
sendChannel = this.channel
locationProvider.requestLocationUpdates(object : ILocationObserver {
override fun onLocationResult(location: Location) {
setValue(channel, LocationData.Success(location))
}

override fun onLocationFailed() {
setValue(channel, LocationData.Fail)
}

})
awaitClose {
sendChannel = null
locationProvider.removeLocationUpdates()
}
}

private fun setValue(value: LocationData) = runBlocking {
sendChannel?.send(value)
}

override fun onLocationResult(location: Location) {
setValue(LocationData.Success(location))
}

override fun onLocationFailed() {
setValue(LocationData.Fail)
}
private fun setValue(sendChannel: SendChannel<LocationData>, value: LocationData) =
runBlocking {
sendChannel.send(value)
}
}