Merge pull request #4 from icerockdev/develop

Release 0.1.1

README.md

@@ -16,7 +16,7 @@ This is a Kotlin Multiplatform library that provides geolocation to common code.
 - [License](#license)
 
 ## Features
-- **** - ;
+- **Geolocation tracking** - track user geolocation from common code;
 
 ## Requirements
 - Gradle version 5.4.1+
@@ -26,6 +26,7 @@ This is a Kotlin Multiplatform library that provides geolocation to common code.
 ## Versions
 - kotlin 1.3.61
   - 0.1.0
+  - 0.1.1
 
 ## Installation
 root build.gradle  
@@ -40,7 +41,7 @@ allprojects {
 project build.gradle
 ```groovy
 dependencies {
-    commonMainApi("dev.icerock.moko:geo:0.1.0")
+    commonMainApi("dev.icerock.moko:geo:0.1.1")
 }
 ```
 
@@ -50,7 +51,51 @@ enableFeaturePreview("GRADLE_METADATA")
 ```
 
 ## Usage
-TODO
+in common code:
+```kotlin
+class TrackerViewModel(
+    val locationTracker: LocationTracker
+) : ViewModel() {
+
+    init {
+        viewModelScope.launch {
+            locationTracker.getLocationsFlow()
+                .distinctUntilChanged()
+                .collect { println("new location: $it") }
+        }
+    }
+
+    fun onStartPressed() {
+        viewModelScope.launch { locationTracker.startTracking() }
+    }
+
+    fun onStopPressed() {
+        locationTracker.stopTracking()
+    }
+}
+```
+
+In Android:
+```kotlin
+// create ViewModel
+val locationTracker = LocationTracker(
+    permissionsController = PermissionsController(applicationContext = applicationContext)
+)
+val viewModel = TrackerViewModel(locationTracker)
+
+// bind tracker to lifecycle
+viewModel.locationTracker.bind(lifecycle, this, supportFragmentManager)
+```
+
+In iOS:
+```swift
+let viewModel = TrackerViewModel(
+    locationTracker: LocationTracker(
+        permissionsController: PermissionsController(),
+        accuracy: kCLLocationAccuracyBest
+    )
+)
+```
 
 ## Samples
 Please see more examples in the [sample directory](sample).

buildSrc/src/main/kotlin/Versions.kt

@@ -17,7 +17,7 @@ object Versions {
 
         object MultiPlatform {
             const val coroutines = "1.3.3"
-            const val mokoGeo = "0.1.0"
+            const val mokoGeo = "0.1.1"
             const val mokoParcelize = "0.2.0"
             const val mokoPermissions = "0.3.0"
             const val mokoMvvm = "0.4.0"

geo/src/iosMain/kotlin/dev/icerock/moko/geo/LocationTracker.kt

@@ -22,12 +22,13 @@ import platform.CoreLocation.kCLLocationAccuracyBest
 import platform.Foundation.NSError
 import platform.Foundation.NSLog
 import platform.darwin.NSObject
+import kotlin.native.ref.WeakReference
 
 actual class LocationTracker(
     actual val permissionsController: PermissionsController,
     accuracy: CLLocationAccuracy = kCLLocationAccuracyBest
 ) {
-    private val tracker = Tracker()
+    private val tracker = Tracker(this)
     private val locationManager = CLLocationManager().apply {
         delegate = tracker
         desiredAccuracy = accuracy
@@ -60,9 +61,16 @@ actual class LocationTracker(
         }
     }
 
-    inner class Tracker: NSObject(), CLLocationManagerDelegateProtocol {
+    private class Tracker(
+        locationTracker: LocationTracker
+    ) : NSObject(), CLLocationManagerDelegateProtocol {
+        private val locationTracker = WeakReference(locationTracker)
+
         override fun locationManager(manager: CLLocationManager, didUpdateLocations: List<*>) {
             val locations = didUpdateLocations as List<CLLocation>
+            val locationTracker = locationTracker.get() ?: return
+            val trackerScope = locationTracker.trackerScope
+            val locationsChannel = locationTracker.locationsChannel
 
             locations.forEach { location ->
                 val latLng = location.coordinate().useContents {