zp_qr_scanner 1.3.0

A high-performance Flutter QR scanner plugin powered by native camera textures on iOS (AVFoundation) and Android (CameraX + ML Kit).

1.3.0

• Added ZpQrScanner.stopScan() / resumeScan() / isScanning to pause and resume QR detection while keeping the camera preview running.
• Added ZpQrScanner.restart() to recover a stuck camera: checks whether the camera is actually showing a fresh frame and restarts the session only if it isn't.
• QrScannerView now reacts to ZpQrScanner.isScanning and to texture changes from restart(), so both are safe to call from outside the widget that created it.
• restart() now throws PlatformException(code: 'not_started') instead of silently turning the camera back on if it is called before start() or after stop(), and keeps the previous isScanning state across a "slow" restart (one that has to recreate the camera) instead of always re-enabling detection.

1.2.0

• Android: sharper scanning of small QR codes held close to the camera.
  • Continuous autofocus is forced and prioritized on the center of the frame instead of the whole scene.
  • Tap-to-focus keeps continuous autofocus instead of locking focus; focus returns to the center after 5 seconds.
  • The camera may start slightly zoomed in (up to 2.0) so the phone stays beyond the lens minimum focus distance, like iOS devices with a single wide lens.
  • Auto exposure is locked to 30 fps when supported to reduce motion blur.
  • Devices without focus-area support fall back to CameraX tap-to-focus with a 2-second lock.

1.1.3

• Added camera zoom.
  • ZpQrScanner.setZoom(scale) sets the zoom level (e.g. 1.0, 2.0, 3.0), clamped to ZpQrScanner.minZoom..ZpQrScanner.maxZoom, and returns the applied level.
  • ZpQrScanner.zoom is a ValueListenable<double> with the current level.
  • 1.0 is the main (wide) lens; minZoom is below 1.0 on devices with an ultra-wide lens; maxZoom is capped at 10.0.
• QrScannerView supports pinch-to-zoom with two fingers (enablePinchZoom, defaults to true).
• Example app: 1x / 2x / 3x zoom selector.

1.1.2

• Added scanBoxAlignment and scanBoxOffset to QrScannerView to position the idle scan frame (defaults to center, backward compatible).
  • The frame pulses around a fixed center, and the detection animation starts from the new position.
• Example app: tap "Vị trí khung" to cycle the frame position.

1.1.1

• iOS: sharper camera preview and reliable continuous autofocus.
  • Captures at 1080p (falls back to 720p when unsupported).
  • Prefers the triple / dual-wide virtual camera so the system switches to the ultra-wide (macro) lens when a QR code is very close; on single-lens devices the zoom compensates for the lens minimum focus distance.
  • Tap-to-focus keeps continuous autofocus instead of locking focus; focus returns to the center when the scene changes.
  • Locked to 30 fps and capped exposure time to reduce motion blur in low light.
• Camera texture is rendered with FilterQuality.medium.

1.1.0

• Added Android support (CameraX + bundled ML Kit, minSdkVersion 21).
  • Camera frames are drawn to the Flutter texture by the plugin itself, so the frozen frame matches the reported QR corners exactly.
  • Runtime camera permission, torch and tap-to-focus support.
  • The QR model is bundled, so scanning works without Google Play Services (adds ~3.9 MB on arm64).
• Synced the iOS podspec version with the package version.
• README: Android setup and app size impact.

1.0.2

• Version bump only, no functional changes.

1.0.1

• Added pulsing breathing animation for the 4 scanning corners in idle state.
• Smooth color transition from white to yellow when QR code is detected.
• Adaptive corner sizing: corner length, stroke width, corner radius, and padding now dynamically scale based on the detected QR code size.
• Revamped example app UI with realistic scanner overlays and bottom sheet result.

1.0.0

• Initial stable release.
• High-performance iOS QR and barcode scanning with native camera textures (Texture widget).
• Real-time QR corner tracking and scan line animations.
• Built-in torch (flashlight) and tap-to-focus support.
• Smooth, lag-free UI with background camera processing.