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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[@nativescript/google-maps] CameraUpdate.fromCameraPosition causes NullPointerException: CameraPosition must not be null","articleBody":"On Android, using GoogleMaps.CameraUpdate.fromCameraPosition() to update the map's camera, especially when including bearing, results in a java.lang.NullPointerException from the native Google Maps SDK.\n\n\n**Steps to Reproduce**\n\n- Set up a blank nativescript-vue project\n\n- Initialize a nativescript/google-maps MapView.\n\n- Attempt to create a CameraUpdate using GoogleMaps.CameraUpdate.fromCameraPosition() with a valid CameraPosition object.\n\n\n``` typescript\nimport * as GoogleMaps from '@nativescript/google-maps';\n\n// Assume 'map' is an initialized GoogleMaps.GoogleMap instance\n// Assume 'map.cameraPosition' has valid data.\n// Assume 'newHeading' is a valid number (e.g., from device orientation).\n\nconst newCameraPosition: GoogleMaps.CameraPosition = {\n    target: map.cameraPosition.target,\n    zoom: map.cameraPosition.zoom,\n    tilt: map.cameraPosition.tilt,\n    bearing: newHeading, // Or any valid number, e.g., 20\n};\n\nconsole.log('Input newCameraPosition:', JSON.stringify(newCameraPosition)); // This logs a valid object\n\ntry {\n    const cameraUpdate = GoogleMaps.CameraUpdate.fromCameraPosition(newCameraPosition);\n    // This line below is never reached\n    console.log('CameraUpdate created successfully.'); \n} catch (e: any) {\n    console.error(\"Error creating CameraUpdate:\", e);\n    if (global.isAndroid \u0026\u0026 e.nativeException) {\n        console.error(\"Native Android Exception:\", e.nativeException);\n    }\n}\n````\n\n**Observed Error :**\n\n```\nError creating CameraUpdate fromCameraPosition: Error: java.lang.NullPointerException: cameraPosition must not be null\nNative Android Exception during CameraUpdate creation: java.lang.NullPointerException: cameraPosition must not be null\n```\n\n**Context \u0026 Impact :**\n\n- The newCameraPosition JavaScript object supplied to fromCameraPosition is confirmed to be valid (no null, undefined, or NaN values).\n\n- This specific NullPointerException indicates an issue in the plugin's native bridge when converting the JavaScript CameraPosition object for fromCameraPosition.\n\n- As per the plugin's CameraUpdate API, fromCameraPosition is the only method that allows for setting the bearing alongside other camera parameters. \n\n- This bug currently prevents any programmatic control over the map's bearing, which is critical for features like compass-oriented maps.\n\n**Environment**\n \n- nativescript-vue: \"3.0.1\"\n- @nativescript/google-maps : \"1.8.0\"\n- Platform: Android\n- Device Model: emulated Pixel 4 but also on hardware","author":{"url":"https://github.com/tzhf","@type":"Person","name":"tzhf"},"datePublished":"2025-07-26T23:32:54.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/638/plugins/issues/638"}