动态刷新图片功能

lib/android/src/main/java/cn/qiuxiang/react/amap3d/maps/AMapSmoothMoveMarker.kt

@@ -19,6 +19,7 @@ import com.facebook.react.views.view.ReactViewGroup
 class AMapSmoothMoveMarker(context: Context) : ReactViewGroup(context), AMapOverlay {
     private var bitmapDescriptor: BitmapDescriptor? = null
     private var coordinates: ArrayList<LatLng> = ArrayList()
+    private var lastImage: String? = null
     
     var marker: SmoothMoveMarker? = null
         private set
@@ -29,8 +30,13 @@ class AMapSmoothMoveMarker(context: Context) : ReactViewGroup(context), AMapOver
         }
 
     fun setImage(name: String) {
-        val drawable = context.resources.getIdentifier(name, "drawable", context.packageName)
-        bitmapDescriptor = BitmapDescriptorFactory.fromResource(drawable)
+        //重置图片
+        if(lastImage != name) {
+            val drawable = context.resources.getIdentifier(name, "drawable", context.packageName)
+            bitmapDescriptor = BitmapDescriptorFactory.fromResource(drawable)
+            lastImage = name
+            marker?.setDescriptor(bitmapDescriptor)
+        }
     }
 
     fun setCoordinates(coordinates: ReadableArray) {