feat: add indoor building focus and level activation listener support

pinpong · pinpong · commit 64073d432d48 · 2025-10-10T14:58:16.000+07:00
diff --git a/android/src/main/java/com/rngooglemapsplus/GoogleMapsViewImpl.kt b/android/src/main/java/com/rngooglemapsplus/GoogleMapsViewImpl.kt
@@ -15,6 +15,7 @@ import com.google.android.gms.maps.MapView
 import com.google.android.gms.maps.model.CameraPosition
 import com.google.android.gms.maps.model.Circle
 import com.google.android.gms.maps.model.CircleOptions
+import com.google.android.gms.maps.model.IndoorBuilding
 import com.google.android.gms.maps.model.LatLng
 import com.google.android.gms.maps.model.LatLngBounds
 import com.google.android.gms.maps.model.MapColorScheme
@@ -30,6 +31,8 @@ import com.google.android.gms.maps.model.TileOverlayOptions
 import com.google.maps.android.data.kml.KmlLayer
 import com.rngooglemapsplus.extensions.toGooglePriority
 import com.rngooglemapsplus.extensions.toLocationErrorCode
+import com.rngooglemapsplus.extensions.toRNIndoorBuilding
+import com.rngooglemapsplus.extensions.toRNIndoorLevel
 import java.io.ByteArrayInputStream
 import java.nio.charset.StandardCharsets
 
@@ -48,6 +51,7 @@ class GoogleMapsViewImpl(
   GoogleMap.OnPolygonClickListener,
   GoogleMap.OnCircleClickListener,
   GoogleMap.OnMarkerDragListener,
+  GoogleMap.OnIndoorStateChangeListener,
   LifecycleEventListener {
   private var initialized = false
   private var mapReady = false
@@ -490,6 +494,8 @@ class GoogleMapsViewImpl(
   var onMarkerDragStart: ((String?, RNLatLng) -> Unit)? = null
   var onMarkerDrag: ((String?, RNLatLng) -> Unit)? = null
   var onMarkerDragEnd: ((String?, RNLatLng) -> Unit)? = null
+  var onIndoorBuildingFocused: ((RNIndoorBuilding) -> Unit)? = null
+  var onIndoorLevelActivated: ((RNIndoorLevel) -> Unit)? = null
   var onCameraChangeStart: ((RNRegion, RNCamera, Boolean) -> Unit)? = null
   var onCameraChange: ((RNRegion, RNCamera, Boolean) -> Unit)? = null
   var onCameraChangeComplete: ((RNRegion, RNCamera, Boolean) -> Unit)? = null
@@ -1003,6 +1009,21 @@ class GoogleMapsViewImpl(
       RNLatLng(marker.position.latitude, marker.position.longitude),
     )
   }
+
+  override fun onIndoorBuildingFocused() {
+    val building = googleMap?.focusedBuilding ?: return
+    onIndoorBuildingFocused?.invoke(building.toRNIndoorBuilding())
+  }
+
+  override fun onIndoorLevelActivated(indoorBuilding: IndoorBuilding) {
+    val activeLevel = indoorBuilding.levels.getOrNull(indoorBuilding.activeLevelIndex) ?: return
+    onIndoorLevelActivated?.invoke(
+      activeLevel.toRNIndoorLevel(
+        indoorBuilding.activeLevelIndex,
+        true,
+      ),
+    )
+  }
 }
 
 private inline fun onUi(crossinline block: () -> Unit) {
diff --git a/android/src/main/java/com/rngooglemapsplus/RNGoogleMapsPlusView.kt b/android/src/main/java/com/rngooglemapsplus/RNGoogleMapsPlusView.kt
@@ -315,6 +315,16 @@ class RNGoogleMapsPlusView(
       view.onMarkerDragEnd = cb
     }
 
+  override var onIndoorBuildingFocused: ((RNIndoorBuilding) -> Unit)? = null
+    set(cb) {
+      view.onIndoorBuildingFocused = cb
+    }
+
+  override var onIndoorLevelActivated: ((RNIndoorLevel) -> Unit)? = null
+    set(cb) {
+      view.onIndoorLevelActivated = cb
+    }
+
   override var onCameraChangeStart: ((RNRegion, RNCamera, Boolean) -> Unit)? = null
     set(cb) {
       view.onCameraChangeStart = cb
diff --git a/android/src/main/java/com/rngooglemapsplus/extensions/IndoorBuildingExtension.kt b/android/src/main/java/com/rngooglemapsplus/extensions/IndoorBuildingExtension.kt
@@ -0,0 +1,33 @@
+package com.rngooglemapsplus.extensions
+
+import com.google.android.gms.maps.model.IndoorBuilding
+import com.google.android.gms.maps.model.IndoorLevel
+import com.rngooglemapsplus.RNIndoorBuilding
+import com.rngooglemapsplus.RNIndoorLevel
+
+fun IndoorBuilding.toRNIndoorBuilding(): RNIndoorBuilding {
+  val mappedLevels =
+    levels
+      .mapIndexed { index, level ->
+        val active = index == activeLevelIndex
+        level.toRNIndoorLevel(index, active)
+      }.toTypedArray()
+
+  return RNIndoorBuilding(
+    activeLevelIndex = activeLevelIndex.toDouble(),
+    defaultLevelIndex = defaultLevelIndex.toDouble(),
+    levels = mappedLevels,
+    underground = isUnderground,
+  )
+}
+
+fun IndoorLevel.toRNIndoorLevel(
+  index: Int,
+  active: Boolean,
+): RNIndoorLevel =
+  RNIndoorLevel(
+    index = index.toDouble(),
+    name = name,
+    shortName = shortName,
+    active = active,
+  )
diff --git a/example/src/App.tsx b/example/src/App.tsx
@@ -20,6 +20,7 @@ import StressTestScreen from './screens/StressTestScreen';
 import { GestureHandlerRootView } from 'react-native-gesture-handler';
 import { useColorScheme } from 'react-native';
 import BlankScreen from './screens/BlankScreen';
+import IndoorLevelMapScreen from './screens/IndoorLevelMapScreen';
 import type { RootStackParamList } from './types/navigation';
 
 const Stack = createStackNavigator<RootStackParamList>();
@@ -94,6 +95,11 @@ export default function App() {
             component={CustomStyleScreen}
             options={{ title: 'Custom Map Style' }}
           />
+          <Stack.Screen
+            name="IndoorLevelMap"
+            component={IndoorLevelMapScreen}
+            options={{ title: 'Indoor level map' }}
+          />
           <Stack.Screen
             name="StressTest"
             component={StressTestScreen}
diff --git a/example/src/components/MapWrapper.tsx b/example/src/components/MapWrapper.tsx
@@ -1,6 +1,10 @@
 import React, { useMemo } from 'react';
 import { StyleSheet, useColorScheme, View } from 'react-native';
-import { GoogleMapsView } from 'react-native-google-maps-plus';
+import {
+  GoogleMapsView,
+  type RNIndoorBuilding,
+  type RNIndoorLevel,
+} from 'react-native-google-maps-plus';
 import type {
   GoogleMapsViewRef,
   RNGoogleMapsPlusViewProps,
@@ -143,6 +147,18 @@ export default function MapWrapper(props: Props) {
               console.log('Marker drag end', id, latLng),
           }
         )}
+        onIndoorBuildingFocused={callback(
+          props.onIndoorBuildingFocused ?? {
+            f: (building: RNIndoorBuilding) =>
+              console.log('Indoor building focused', building),
+          }
+        )}
+        onIndoorLevelActivated={callback(
+          props.onIndoorLevelActivated ?? {
+            f: (level: RNIndoorLevel) =>
+              console.log('Indoor level activated', level),
+          }
+        )}
         onCameraChangeStart={callback(
           props.onCameraChangeStart ?? {
             f: (r: RNRegion, cam: RNCamera, g: boolean) =>
diff --git a/example/src/screens/HomeScreen.tsx b/example/src/screens/HomeScreen.tsx
@@ -14,6 +14,7 @@ const screens = [
   { name: 'KmlLayer', title: 'KML Layer' },
   { name: 'Location', title: 'Location & Permissions' },
   { name: 'CustomStyle', title: 'Custom Map Style' },
+  { name: 'IndoorLevelMap', title: 'Indoor level map' },
   { name: 'StressTest', title: 'Stress Test' },
 ];
 
diff --git a/example/src/screens/IndoorLevelMapScreen.tsx b/example/src/screens/IndoorLevelMapScreen.tsx
@@ -0,0 +1,26 @@
+import React, { useRef } from 'react';
+import MapWrapper from '../components/MapWrapper';
+import type { GoogleMapsViewRef } from 'react-native-google-maps-plus';
+import ControlPanel from '../components/ControlPanel';
+
+export default function IndoorLevelMapScreen() {
+  const mapRef = useRef<GoogleMapsViewRef | null>(null);
+  return (
+    <MapWrapper
+      mapRef={mapRef}
+      initialProps={{
+        camera: {
+          center: {
+            latitude: 37.617596832174385,
+            longitude: -122.38253440707922,
+          },
+          zoom: 18,
+        },
+      }}
+      indoorEnabled={true}
+      buildingEnabled={true}
+    >
+      <ControlPanel mapRef={mapRef} buttons={[]} />
+    </MapWrapper>
+  );
+}
diff --git a/example/src/types/navigation.ts b/example/src/types/navigation.ts
@@ -10,6 +10,7 @@ export type RootStackParamList = {
   KmlLayer: undefined;
   Location: undefined;
   CustomStyle: undefined;
+  IndoorLevelMap: undefined;
   StressTest: undefined;
 };
 
diff --git a/ios/GoogleMapViewImpl.swift b/ios/GoogleMapViewImpl.swift
@@ -3,7 +3,8 @@ import GoogleMaps
 import GoogleMapsUtils
 import UIKit
 
-final class GoogleMapsViewImpl: UIView, GMSMapViewDelegate {
+final class GoogleMapsViewImpl: UIView, GMSMapViewDelegate,
+GMSIndoorDisplayDelegate {
 
   private let locationHandler: LocationHandler
   private let markerBuilder: MapMarkerBuilder
@@ -136,7 +137,10 @@ final class GoogleMapsViewImpl: UIView, GMSMapViewDelegate {
     myLocationEnabled.map { mapView?.isMyLocationEnabled = $0 }
     buildingEnabled.map { mapView?.isBuildingsEnabled = $0 }
     trafficEnabled.map { mapView?.isTrafficEnabled = $0 }
-    indoorEnabled.map { mapView?.isIndoorEnabled = $0 }
+    indoorEnabled.map {
+      mapView?.isIndoorEnabled = $0
+      mapView?.indoorDisplay.delegate = $0 == true ? self : nil
+    }
     customMapStyle.map { mapView?.mapStyle = $0 }
     mapType.map { mapView?.mapType = $0 }
     userInterfaceStyle.map { mapView?.overrideUserInterfaceStyle = $0 }
@@ -236,6 +240,7 @@ final class GoogleMapsViewImpl: UIView, GMSMapViewDelegate {
   var indoorEnabled: Bool? {
     didSet {
       mapView?.isIndoorEnabled = indoorEnabled ?? false
+      mapView?.indoorDisplay.delegate = indoorEnabled == true ? self : nil
     }
   }
 
@@ -304,6 +309,8 @@ final class GoogleMapsViewImpl: UIView, GMSMapViewDelegate {
   var onMarkerDragStart: ((String?, RNLatLng) -> Void)?
   var onMarkerDrag: ((String?, RNLatLng) -> Void)?
   var onMarkerDragEnd: ((String?, RNLatLng) -> Void)?
+  var onIndoorBuildingFocused: ((RNIndoorBuilding) -> Void)?
+  var onIndoorLevelActivated: ((RNIndoorLevel) -> Void)?
   var onCameraChangeStart: ((RNRegion, RNCamera, Bool) -> Void)?
   var onCameraChange: ((RNRegion, RNCamera, Bool) -> Void)?
   var onCameraChangeComplete: ((RNRegion, RNCamera, Bool) -> Void)?
@@ -766,4 +773,23 @@ final class GoogleMapsViewImpl: UIView, GMSMapViewDelegate {
       RNLatLng(marker.position.latitude, marker.position.longitude)
     )
   }
+
+  func didChangeActiveBuilding(_ building: GMSIndoorBuilding?) {
+    guard let display = mapView?.indoorDisplay, let building else { return }
+    onIndoorBuildingFocused?(building.toRNIndoorBuilding(from: display))
+  }
+
+  func didChangeActiveLevel(_ level: GMSIndoorLevel?) {
+    guard
+      let display = mapView?.indoorDisplay,
+      let building = display.activeBuilding,
+      let level,
+      let index = building.levels.firstIndex(where: {
+        $0.name == level.name && $0.shortName == level.shortName
+      })
+    else { return }
+
+    onIndoorLevelActivated?(level.toRNIndoorLevel(index: index, active: true))
+  }
+
 }
diff --git a/ios/RNGoogleMapsPlusView.swift b/ios/RNGoogleMapsPlusView.swift
@@ -319,6 +319,12 @@ final class RNGoogleMapsPlusView: HybridRNGoogleMapsPlusViewSpec {
   var onMarkerDragEnd: ((String?, RNLatLng) -> Void)? {
     didSet { impl.onMarkerDragEnd = onMarkerDragEnd }
   }
+  var onIndoorBuildingFocused: ((RNIndoorBuilding) -> Void)? {
+    didSet { impl.onIndoorBuildingFocused = onIndoorBuildingFocused }
+  }
+  var onIndoorLevelActivated: ((RNIndoorLevel) -> Void)? {
+    didSet { impl.onIndoorLevelActivated = onIndoorLevelActivated }
+  }
   var onCameraChangeStart: ((RNRegion, RNCamera, Bool) -> Void)? {
     didSet { impl.onCameraChangeStart = onCameraChangeStart }
   }
diff --git a/ios/extensions/IndoorBuilding+Extension.swift b/ios/extensions/IndoorBuilding+Extension.swift
@@ -0,0 +1,33 @@
+import GoogleMaps
+import NitroModules
+
+extension GMSIndoorLevel {
+  func toRNIndoorLevel(index: Int, active: Bool) -> RNIndoorLevel {
+    RNIndoorLevel(
+      index: Double(index),
+      name: self.name,
+      shortName: self.shortName,
+      active: active
+    )
+  }
+}
+
+extension GMSIndoorBuilding {
+  func toRNIndoorBuilding(from indoorDisplay: GMSIndoorDisplay)
+  -> RNIndoorBuilding {
+    let activeLevel = indoorDisplay.activeLevel
+    let levels = self.levels.enumerated().map {
+      (index, level) -> RNIndoorLevel in
+      let isActive = (level == activeLevel)
+      return level.toRNIndoorLevel(index: index, active: isActive)
+    }
+    let activeIndex = self.levels.firstIndex(where: { $0 == activeLevel })
+
+    return RNIndoorBuilding(
+      activeLevelIndex: activeIndex.map { Double($0) } ?? nil,
+      defaultLevelIndex: nil,
+      levels: levels,
+      underground: self.isUnderground
+    )
+  }
+}
diff --git a/src/RNGoogleMapsPlusView.nitro.ts b/src/RNGoogleMapsPlusView.nitro.ts
@@ -24,6 +24,8 @@ import type {
   RNMapZoomConfig,
   RNHeatmap,
   RNKMLayer,
+  RNIndoorBuilding,
+  RNIndoorLevel,
 } from './types';
 
 export interface RNGoogleMapsPlusViewProps extends HybridViewProps {
@@ -57,6 +59,8 @@ export interface RNGoogleMapsPlusViewProps extends HybridViewProps {
   onMarkerDragStart?: (id: string | undefined, location: RNLatLng) => void;
   onMarkerDrag?: (id: string | undefined, location: RNLatLng) => void;
   onMarkerDragEnd?: (id: string | undefined, location: RNLatLng) => void;
+  onIndoorBuildingFocused?: (indoorBuilding: RNIndoorBuilding) => void;
+  onIndoorLevelActivated?: (indoorLevel: RNIndoorLevel) => void;
   onCameraChangeStart?: (
     region: RNRegion,
     camera: RNCamera,
diff --git a/src/types.ts b/src/types.ts
@@ -210,6 +210,20 @@ export type RNKMLayer = {
   kmlString: string;
 };
 
+export type RNIndoorBuilding = {
+  activeLevelIndex?: number;
+  defaultLevelIndex?: number;
+  levels: RNIndoorLevel[];
+  underground?: boolean;
+};
+
+export type RNIndoorLevel = {
+  index: number;
+  name?: string;
+  shortName?: string;
+  active?: boolean;
+};
+
 export type RNLocationConfig = {
   android?: RNAndroidLocationConfig;
   ios?: RNIOSLocationConfig;

Original file line number	Diff line number	Diff line change
`@@ -319,6 +319,12 @@ final class RNGoogleMapsPlusView: HybridRNGoogleMapsPlusViewSpec {`
`319`	`319`	`var onMarkerDragEnd: ((String?, RNLatLng) -> Void)? {`
`320`	`320`	`didSet { impl.onMarkerDragEnd = onMarkerDragEnd }`
`321`	`321`	`}`
	`322`	`+ var onIndoorBuildingFocused: ((RNIndoorBuilding) -> Void)? {`
	`323`	`+ didSet { impl.onIndoorBuildingFocused = onIndoorBuildingFocused }`
	`324`	`+ }`
	`325`	`+ var onIndoorLevelActivated: ((RNIndoorLevel) -> Void)? {`
	`326`	`+ didSet { impl.onIndoorLevelActivated = onIndoorLevelActivated }`
	`327`	`+ }`
`322`	`328`	`var onCameraChangeStart: ((RNRegion, RNCamera, Bool) -> Void)? {`
`323`	`329`	`didSet { impl.onCameraChangeStart = onCameraChangeStart }`
`324`	`330`	`}`