feat: map getZoom

Author: farfromrefug

src/ui/index.android.ts

@@ -195,6 +195,9 @@ export class CartoMap<T = DefaultLatLonKeys> extends CartoViewBase {
             this.mapView.setMapRotation(value, toNativeMapPos(targetPos), duration / 1000);
         }
     }
+    getZoom() {
+        return this.mapView.getZoom();
+    }
     setZoom(value: number, targetPos: MapPos | number, duration: number = 0) {
         if (typeof targetPos === 'number') {
             this.mapView.setZoom(value, targetPos / 1000);

src/ui/index.d.ts

@@ -211,6 +211,7 @@ export class CartoMap<T = DefaultLatLonKeys> extends View {
     fromNativeMapPos(position: any): GenericMapPos<T>;
     getOptions(): MapOptions;
 
+    getZoom(): number;
     setZoom(value: number, target: number | GenericMapPos<T>, duration?: number);
     setMapRotation(value: number, target: number | GenericMapPos<T>, duration?: number);
     setBearing(value: number, duration?: number);

src/ui/index.ios.ts

@@ -232,6 +232,9 @@ export class CartoMap<T = DefaultLatLonKeys> extends CartoViewBase {
         const screenBounds = toNativeScreenBounds({ min: { x: 0, y: 0 }, max: { x: this.getMeasuredWidth(), y: this.getMeasuredHeight() } }) as NTScreenBounds;
         return new MapBounds<T>(fromNativeMapPos(this.mapView.screenToMap(screenBounds.getMin())), fromNativeMapPos(this.mapView.screenToMap(screenBounds.getMax())));
     }
+    getZoom() {
+        return this.mapView.getZoom();
+    }
     setZoom(value: number, targetPos: MapPos | number, duration: number = 0) {
         if (typeof targetPos === 'number') {
             this.mapView.setZoomDurationSeconds(value, targetPos / 1000);