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fix #169

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This commit is contained in:
otsmr 2025-05-20 21:57:37 +02:00
parent b6502ca8d0
commit 50c859f13f
1 changed files with 22 additions and 25 deletions
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47
lib/src/views/camera/camera_preview_view.dart
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@ -47,6 +47,10 @@ class _CameraPreviewViewState extends State<CameraPreviewView> {
bool videoWithAudio = true;
DateTime? videoRecordingStarted;
Timer? videoRecordingTimer;
double _minAvailableZoom = 1.0;
double _maxAvailableZoom = 1.0;
DateTime currentTime = DateTime.now();
final GlobalKey keyTriggerButton = GlobalKey();
final GlobalKey<NavigatorState> navigatorKey = GlobalKey<NavigatorState>();
@ -109,7 +113,10 @@ class _CameraPreviewViewState extends State<CameraPreviewView> {
}
setState(() {
isZoomAble = false;
scaleFactor = 1;
if (cameraId != sCameraId) {
// switch between front and back
scaleFactor = 1;
}
});
controller = CameraController(
gCameras[sCameraId],
@ -120,9 +127,17 @@ class _CameraPreviewViewState extends State<CameraPreviewView> {
if (!mounted) {
return;
}
await controller!.setZoomLevel(scaleFactor);
await controller?.lockCaptureOrientation(DeviceOrientation.portraitUp);
controller?.setFlashMode(isFlashOn ? FlashMode.always : FlashMode.off);
controller
?.getMaxZoomLevel()
.then((double value) => _maxAvailableZoom = value);
controller
?.getMinZoomLevel()
.then((double value) => _minAvailableZoom = value);
isZoomAble = await controller?.getMinZoomLevel() !=
await controller?.getMaxZoomLevel();
setState(() {
@ -147,16 +162,8 @@ class _CameraPreviewViewState extends State<CameraPreviewView> {
Future<void> updateScaleFactor(double newScale) async {
if (scaleFactor == newScale || controller == null) return;
var minFactor = await controller!.getMinZoomLevel();
var maxFactor = await controller!.getMaxZoomLevel();
if (newScale < minFactor) {
newScale = minFactor;
}
if (newScale > maxFactor) {
newScale = maxFactor;
}
await controller?.setZoomLevel(newScale);
await controller
?.setZoomLevel(newScale.clamp(_minAvailableZoom, _maxAvailableZoom));
setState(() {
scaleFactor = newScale;
});
@ -279,22 +286,12 @@ class _CameraPreviewViewState extends State<CameraPreviewView> {
if (isFront) {
return;
}
var diff = basePanY - details.localPosition.dy;
var baseDiff = Platform.isAndroid ? 200.0 : 300.0;
scaleFactor = (baseScaleFactor + (basePanY - details.localPosition.dy) / 30)
.clamp(1, _maxAvailableZoom);
if (diff > baseDiff) diff = baseDiff;
if (diff < -baseDiff) diff = -baseDiff;
var tmp = 0.0;
if (Platform.isAndroid) {
tmp = (diff / baseDiff * (7 * 2)).toInt() / 2;
} else {
tmp = (diff / baseDiff * (14 * 2)).toInt() / 4;
}
tmp = baseScaleFactor + tmp;
if (tmp < 1) tmp = 1;
updateScaleFactor(tmp);
await controller!.setZoomLevel(scaleFactor);
setState(() {});
}
Future pickImageFromGallery() async {