manual_camera_pro

Description:

manual camera pro

Manual Camera Plugin #

This plugin is a modified version of the native Flutter camera plugin.
This version allows the definition of manual parameters for the Android camera:



Feature
Values
Type
Description




enableFlash
true/false
bool
Turn flash on or off


focusDistance
0 (auto) - +∞
double
Distance in meters from camera to focused object


iso
0 (auto) - +∞
int
Sensor's sensitivity to light


shutterSpeed
0 (auto) - +∞
int
1s / shutterSpeed = duration of the sensor exposure


whiteBalance
...
WhiteBalancePreset
White balance Android options



Installation #
First, add manual_camera as a dependency in your pubspec.yaml file.
dependencies:
flutter:
sdk: flutter
manual_camera: ^0.0.3 // add manual_camera plugin
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iOS #
Add two rows to the ios/Runner/Info.plist:

one with the key Privacy - Camera Usage Description and a usage description.
and one with the key Privacy - Microphone Usage Description and a usage description.

Or in text format add the key:
<key>NSCameraUsageDescription</key>
<string>Can I use the camera please?</string>
<key>NSMicrophoneUsageDescription</key>
<string>Can I use the mic please?</string>
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Android #
Change the minimum Android sdk version to 21 (or higher) in your android/app/build.gradle file.
minSdkVersion 21
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Example #
Here is a small example flutter app displaying a full screen camera preview.
import 'dart:async';
import 'package:manual_camera/camera.dart';
import 'package:camera/camera.dart';

List<CameraDescription> cameras;

Future<void> main() async {
WidgetsFlutterBinding.ensureInitialized();
cameras = await availableCameras();
runApp(CameraApp());
}

class CameraApp extends StatefulWidget {
@override
_CameraAppState createState() => _CameraAppState();
}

class _CameraAppState extends State<CameraApp> {
CameraController controller;

@override
void initState() {
super.initState();
controller = CameraController(
cameras[0],
ResolutionPreset.medium,
iso: 100,
shutterSpeed: 30,
whiteBalance: WhiteBalancePreset.cloudy,
focusDistance: 0.1,
);
controller.initialize().then((_) {
if (!mounted) {
return;
}
setState(() {});
Future.delayed(
Duration(
milliseconds: 1000,
),
).then((_) => _cameraController.flash(true));
});
}

@override
void dispose() {
controller?.dispose();
super.dispose();
}

@override
Widget build(BuildContext context) {
if (!controller.value.isInitialized) {
return Container();
}
return AspectRatio(
aspectRatio:
controller.value.aspectRatio,
child: CameraPreview(controller));
}
}
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Note: This plugin is still under development, and some APIs might not be available yet. I hope that in the future IOS manual exposition will also be available.