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Debounce implemented

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wengki81 2025-06-15 16:51:04 +08:00
parent 7b397e78bd
commit 801d00c6d0
1 changed files with 51 additions and 3 deletions
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54
android/src/main/java/com/dumon/plugin/geolocation/DumonGeolocation.kt
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@ -24,6 +24,7 @@ import com.dumon.plugin.geolocation.utils.PermissionUtils
import com.getcapacitor.annotation.PermissionCallback
import org.json.JSONArray
import org.json.JSONObject
import kotlin.math.*
@CapacitorPlugin(
name = "DumonGeolocation",
@ -56,7 +57,18 @@ class DumonGeolocation : Plugin() {
private var isMockedLocation = false
private var lastEmitTimestamp: Long = 0L
private val emitIntervalMs: Long = 500L
private var prevLatitude = 0.0
private var prevLongitude = 0.0
private var prevSpeed = 0f
private var prevDirection = 0f
// private val significantChangeThreshold = 0.00007 // ~7 meters
private val significantChangeThreshold = 7 // ~7 meters
private val speedChangeThreshold = 0.5f // m/s
private val directionChangeThreshold = 0.17f // ~10 deg
// private val emitIntervalMs: Long = 500L
private val emitIntervalMs: Long = 1000L // hard debounce
override fun load() {
gpsManager = GpsStatusManager(
@ -231,10 +243,46 @@ class DumonGeolocation : Plugin() {
}
private fun emitPositionUpdate() {
val now = System.currentTimeMillis()
/*val now = System.currentTimeMillis()
if (now - lastEmitTimestamp < emitIntervalMs) return
lastEmitTimestamp = now
notifyListeners("onPositionUpdate", buildPositionData())
notifyListeners("onPositionUpdate", buildPositionData())*/
val now = System.currentTimeMillis()
if (now - lastEmitTimestamp < emitIntervalMs) return
val distance = calculateDistance(latestLatitude, latestLongitude, prevLatitude, prevLongitude)
val isSignificantChange = distance >= significantChangeThreshold
val speedChanged = abs((latestImu?.speed ?: 0f) - prevSpeed) > speedChangeThreshold
val directionChanged = abs((latestImu?.directionRad ?: 0f) - prevDirection) > directionChangeThreshold
if (isSignificantChange || speedChanged || directionChanged) {
prevLatitude = latestLatitude
prevLongitude = latestLongitude
prevSpeed = latestImu?.speed ?: 0f
prevDirection = latestImu?.directionRad ?: 0f
lastEmitTimestamp = now
notifyListeners("onPositionUpdate", buildPositionData())
}
}
private fun degToRad(deg: Double): Double {
return deg * PI / 180.0
}
private fun calculateDistance(lat1: Double, lon1: Double, lat2: Double, lon2: Double): Double {
val R = 6371000.0 // Radius bumi dalam meter
val latDistance = degToRad(lat2 - lat1)
val lonDistance = degToRad(lon2 - lon1)
val a = sin(latDistance / 2).pow(2) + cos(degToRad(lat1)) * cos(degToRad(lat2)) *
sin(lonDistance / 2).pow(2)
val c = 2 * atan2(sqrt(a), sqrt(1 - a))
return R * c
}
private fun buildPositionData(): JSObject {