Adding Start-Finish icons and titles to markers

app/src/main/java/uca/baptistearthur/geocaching/ui/overlay/AddMarkerOverlay.kt

@@ -1,7 +1,9 @@
 package uca.baptistearthur.geocaching.ui.overlay
 
+import android.content.Context
 import android.util.Log
 import android.view.MotionEvent
+import androidx.core.content.ContextCompat
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
@@ -11,11 +13,12 @@ import org.osmdroid.util.GeoPoint
 import org.osmdroid.views.MapView
 import org.osmdroid.views.overlay.Overlay
 import org.osmdroid.views.overlay.Polyline
+import uca.baptistearthur.geocaching.R
 
 
 class AddMarkerOverlay(val roadManager: RoadManager) : Overlay() {
 
-    private var locations: MutableSet<GeoPoint> = mutableSetOf()
+    private var locations: MutableSet<PlaceMarker> = mutableSetOf()
     private lateinit var roadOverlay: Polyline
     private var newRoadtripOverlayVisible = false;
     override fun onDoubleTap(e: MotionEvent?, mapView: MapView?): Boolean {
@@ -23,25 +26,36 @@ class AddMarkerOverlay(val roadManager: RoadManager) : Overlay() {
         val proj = mapView?.projection;
         if(proj!=null){
             val loc = proj.fromPixels(e?.x?.toInt()!!, e.y.toInt() ) as GeoPoint
-            locations.add(loc)
-            val marker = PlaceMarker(mapView, locations, this)
+            val marker = PlaceMarker(mapView, this)
             marker.position = loc
+            if(locations.isNotEmpty()) locations.last().setDefaultIcon()
+            locations.add(marker)
+            locations.forEach{ it.closeInfoWindow()}
+            computeIcons(mapView.context)
             mapView.overlays.add(marker)
             computeRoad(mapView)
             computeNewRoadtripOverlay(mapView);
+            mapView.invalidate()
         }
         return true;
     }
 
+    fun computeIcons(context: Context){
+        if(locations.isNotEmpty()) {
+            val flagIcon = ContextCompat.getDrawable(context, R.drawable.roadtrip_marker)!!
+            locations.last().icon = flagIcon
+            locations.first().icon = flagIcon
+        }
+    }
+
     fun computeRoad(mapView: MapView) {
         mapView.overlays.remove(mapView.overlays.find { it is Polyline})
         if (locations.size > 1) {
             CoroutineScope(Dispatchers.IO).launch {
-                val road = roadManager.getRoad(ArrayList(locations))
+                val road = roadManager.getRoad(ArrayList(locations.map{it -> it.position}))
                 withContext(Dispatchers.Main) {
                     roadOverlay = RoadManager.buildRoadOverlay(road)
                     mapView.overlays.add(roadOverlay)
-                    mapView.invalidate()
                 }
             }
         }
@@ -60,7 +74,18 @@ class AddMarkerOverlay(val roadManager: RoadManager) : Overlay() {
             newRoadtripOverlayVisible=false
         }
     }
-
-
+    fun removeMarker(placeMarker: PlaceMarker) = locations.remove(placeMarker);
+    fun getMarkerLabel(placeMarker: PlaceMarker) =
+        when (placeMarker) {
+            locations.first() -> {
+                "Start"
+            }
+            locations.last() -> {
+                "Finish"
+            }
+            else -> {
+                "Step " + locations.indexOf(placeMarker);
+            }
+        }
 
 }

app/src/main/java/uca/baptistearthur/geocaching/ui/overlay/NewRoadtripOverlay.kt

@@ -14,7 +14,7 @@ import org.osmdroid.views.overlay.Overlay
 import uca.baptistearthur.geocaching.R
 
 
-class NewRoadtripOverlay(val points: Collection<GeoPoint>) : Overlay() {
+class NewRoadtripOverlay(val points: Collection<PlaceMarker>) : Overlay() {
 
     private var circleRectF=RectF()
 

app/src/main/java/uca/baptistearthur/geocaching/ui/overlay/PlaceMarker.kt

@@ -1,26 +1,32 @@
 package uca.baptistearthur.geocaching.ui.overlay
 
+import android.graphics.drawable.Drawable
+import android.util.Log
 import android.view.MotionEvent
+import androidx.core.content.ContextCompat
 import org.osmdroid.bonuspack.routing.OSRMRoadManager
 import org.osmdroid.bonuspack.routing.RoadManager
 import org.osmdroid.util.GeoPoint
 import org.osmdroid.views.MapView
 import org.osmdroid.views.overlay.Marker
 import org.osmdroid.views.overlay.infowindow.InfoWindow
+import uca.baptistearthur.geocaching.R
 
-class PlaceMarker(val mapView: MapView, val locations: MutableSet<GeoPoint>, val parent : AddMarkerOverlay) : Marker(mapView) {
-    override fun getTitle(): String {
-        return "Step " + (locations.indexOf(this.position)+1)
-    }
+class PlaceMarker(val mapView: MapView, val parent : AddMarkerOverlay) : Marker(mapView) {
+
+    override fun getTitle() = parent.getMarkerLabel(this)
     override fun onLongPress(e: MotionEvent?, mapView: MapView?): Boolean {
         if(mapView!=null && this.hitTest(e, mapView)) {
-            locations.remove(this.position)
+            parent.removeMarker(this)
             this.closeInfoWindow()
             mapView.overlays.remove(this)
+            parent.computeIcons(mapView.context)
             parent.computeRoad(mapView)
             parent.computeNewRoadtripOverlay(mapView)
+            mapView.invalidate()
             return true
         }
         return false
     }
+
 }

app/src/main/res/drawable/roadtrip_marker.xml

@@ -0,0 +1,5 @@
+<vector android:height="50dp" android:tint="#FF0000"
+    android:viewportHeight="24" android:viewportWidth="24"
+    android:width="50dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="@android:color/white" android:pathData="M14.4,6L14,4H5v17h2v-7h5.6l0.4,2h7V6z"/>
+</vector>