simple_native 0.0.21

A comprehensive Flutter plugin for accessing native device features including Camera (Photos, QR & Barcode), Location, Device Information, and Biometric Authentication.

0.0.20

• Camera (QR & Barcode Scanning) - Android:
  • Fixed camera failure to open (infinite loading spinner) when repeatedly opening/closing the scanning screen by implementing a global camera instance manager and queue (activeInstance and pendingOpenRequests).
  • Fixed silent asynchronous errors by notifying the Flutter UI via MethodChannel in StateCallback.onError().
  • Resolved potential NullPointerExceptions in updatePreview(), createCameraPreview(), and setupImageReader() by adding strict null checks for cameraCaptureSessions and imageDimension.

0.0.19

• Camera (QR & Barcode Scanning) - Android & iOS:
  • Android: Integrated ActivityLifecycleCallbacks to automatically pause and resume the camera in sync with the Activity state, preventing resource leaks.
  • Android: Implemented safe camera switching by waiting for the previous camera's onClosed callback before opening the new camera, eliminating CAMERA_IN_USE errors.
  • Android: Highly optimized screenshot capturing (getBitmap) by moving it to the main thread and triggering it only when a barcode/QR code is successfully detected, saving significant CPU/RAM cycles.
  • Android: Optimized image stream data copying to avoid JNI pixel-by-pixel reads, improving frame pipeline performance.
  • iOS: Prevented main thread UI freezing during camera disposal by running stopRunning() asynchronously in a background thread.
  • iOS: Resolved potential hanging on iOS Simulator during takePicture calls by immediately returning a FlutterError when the camera output is unavailable.
  • Android & iOS: Marked camera resources volatile and added safety guards and null checks to prevent multithreading race conditions.

0.0.18

• Camera (QR & Barcode Scanning):
  • Fixed camera device state, closing, and opening sequence order on Android to prevent potential crashes and resource leaks during state transitions.

0.0.17

• Camera (QR & Barcode Scanning):
  • Added scanWindow parameter to SimpleCameraView to restrict barcode/QR code scanning to a specific rectangular region of interest (ROI) on both Android and iOS.
  • Added setScanWindow method to SimpleCameraController to dynamically update the scan window at runtime.
  • Integrated layout builder in the example app to demonstrate scanning constraint within a yellow bordered box.

0.0.16

• Camera (QR & Barcode Scanning):
  • Added support for simultaneous multi-code detection on both Android and iOS, returning a list of bounding box coordinates mapped to logical screen dimensions.
  • Added support for freezeOnResult parameter to pause/freeze camera preview upon detection.
  • Resolved frame-pipeline latency and coordinate shift issues on freeze-frame by capturing native snapshots (via .getBitmap() on Android and preview layer contexts on iOS) and rendering them as static overlays in Flutter.
  • Optimized Android camera preview scanning thread model (ImageReader background worker) to prevent lag.
  • Added native focus checks (Android's CONTROL_AF_STATE and iOS's isAdjustingFocus) to ensure the camera only freezes on sharp, clear frames.
  • Fixed iOS metadata delegate timeout bug to ensure same-QR codes are scanned correctly when pointing away and back.

0.0.15

• Camera:
  • Synchronized camera loading behavior on iOS with Android by implementing the onCameraReady event.
  • The iOS camera view now correctly detects when the first frame is rendered to dismiss the loadingWidget seamlessly, ensuring a smooth UX without UI flickering.

0.0.14

• Plugin Info:
  • Updated package description in pubspec.yaml to explicitly mention support for Barcode scanning and Biometric Authentication.
• Camera:
  • Upgraded QR code scanning to support general barcode scanning on both Android and iOS simultaneously. The SimpleCameraResultType now includes a barcode type to distinguish between QR codes and regular barcodes.

0.0.13

• Android:
  • Upgraded com.google.mlkit:barcode-scanning to version 18.3.0 to support Android 16 KB page sizes.
  • Fixed an issue where Face ID (weak biometric) might not prompt on certain Android devices by correctly setting AllowedAuthenticators.

0.0.12

• Biometrics:
  • Breaking Change: Refactored getAvailableBiometric to return SimpleBiometricType directly instead of a String, and removed notEnrolled. It now focuses purely on hardware capabilities (face, fingerprint, iris, notSupported).
  • Added support for iris biometric type on Android.
  • Breaking Change: Refactored authenticate states. notEnrolled is merged into notSupported. The method can now be safely called multiple times sequentially without getting stuck on both Android and iOS.
  • Fixed a bug on Android where authenticate required FragmentActivity on all versions. It now supports the default FlutterActivity.
  • Added a new method openBiometricSettings() to deep-link users directly to the system's biometric enrollment/security settings page on both Android and iOS.
• Documentation:
  • Updated README.md to reflect the new biometric flow and openBiometricSettings usage.

0.0.11

• Camera:
  • Fixed takePicture returning null on iOS by properly handling async result callback.
  • Improved iOS camera stability: added isSwitching and isDisposed flags to prevent race conditions and crashes during rapid interactions.
  • Implemented explicit stopCamera method on iOS for better resource cleanup.
  • Ensured takePicture returns a valid file path on both Android and iOS.

0.0.10

• SimpleDeviceInfo:
  • Core: Added deviceId to SimpleDeviceInfo.
  • Native: Implemented persistent ID across reinstalls via ANDROID_ID (Android) and Keychain (iOS).

0.0.9

• Location:
  • Fixed location address retrieval.

0.0.8

• Camera:
  • Added cameraPosition parameter to SimpleCameraView to allow selecting the initial camera (front/back).
  • Fixed IllegalStateException: CameraDevice was already closed crash on Android when switching cameras rapidly.
  • Fixed updateAcquireFence: Did not find frame error on Android by properly managing Surface lifecycle.
  • Improved camera resource management and cleanup on both Android and iOS.
  • Added support for mirroring front camera preview on iOS.

0.0.7

• Metadata:
  • Added topics to pubspec.yaml to improve package discoverability on pub.dev.
  • Keywords include: camera, location, device-info, native, plugin.

0.0.5

• Refactor:
  • Merged SimpleCameraConverter functionality into SimpleCameraImage.
  • Added toImage() method to SimpleCameraImage for easy conversion to BMP format.
  • Removed SimpleCameraConverter class.
• Documentation:
  • Updated README to reflect the API changes and new version.
  • Updated package description in pubspec.yaml to be more professional.

0.0.4

• Camera:
  • Made onResult callback optional in SimpleCameraView.
  • Fixed camera preview orientation issues on iOS.
  • Locked camera view to portrait orientation on both Android and iOS to prevent unwanted rotation.
  • Fixed image stream rotation on iOS (now correctly oriented).
  • Added support for mirroring front camera stream on iOS.
• Documentation:
  • Updated README with new features and license information.
  • Added BSD 3-Clause License.

0.0.1

• Initial release.
• Added SimpleCameraView for camera preview and image capture.
• Added SimpleNative class for accessing native features.
• Implemented getCurrentLocation to retrieve device coordinates.
• Implemented getDeviceInfo to retrieve device details.
• Supported Android and iOS platforms.