Use src/ folder with utility file for importers

example/lib/main.dart

@@ -1,6 +1,5 @@
 import 'package:flutter/material.dart';
 import 'package:qr_code_scanner/qr_code_scanner.dart';
-import 'package:qr_code_scanner/qr_scanner_overlay_shape.dart';
 
 void main() => runApp(MaterialApp(home: QRViewExample()));
 

lib/qr_code_scanner.dart

@@ -1,143 +1,2 @@
-import 'dart:async';
-
-import 'package:flutter/foundation.dart';
-import 'package:flutter/material.dart';
-import 'package:flutter/services.dart';
-
-typedef void QRViewCreatedCallback(QRViewController controller);
-
-class QRView extends StatefulWidget {
-  const QRView({
-    @required Key key,
-    @required this.onQRViewCreated,
-    this.overlay,
-  })  : assert(key != null),
-        assert(onQRViewCreated != null),
-        super(key: key);
-
-  final QRViewCreatedCallback onQRViewCreated;
-
-  final ShapeBorder overlay;
-
-  @override
-  State<StatefulWidget> createState() => _QRViewState();
-}
-
-class _QRViewState extends State<QRView> {
-  @override
-  Widget build(BuildContext context) {
-    return Stack(
-      children: [
-        _getPlatformQrView(),
-        widget.overlay != null
-            ? Container(
-                decoration: ShapeDecoration(
-                  shape: widget.overlay,
-                ),
-              )
-            : Container(),
-      ],
-    );
-  }
-
-  Widget _getPlatformQrView() {
-    Widget _platformQrView;
-    switch (defaultTargetPlatform) {
-      case TargetPlatform.android:
-        _platformQrView = AndroidView(
-          viewType: 'net.touchcapture.qr.flutterqr/qrview',
-          onPlatformViewCreated: _onPlatformViewCreated,
-        );
-        break;
-      case TargetPlatform.iOS:
-        _platformQrView = UiKitView(
-          viewType: 'net.touchcapture.qr.flutterqr/qrview',
-          onPlatformViewCreated: _onPlatformViewCreated,
-          creationParams: _CreationParams.fromWidget(0, 0).toMap(),
-          creationParamsCodec: StandardMessageCodec(),
-        );
-        break;
-      default:
-        throw UnsupportedError(
-            "Trying to use the default webview implementation for $defaultTargetPlatform but there isn't a default one");
-    }
-    return _platformQrView;
-  }
-
-  void _onPlatformViewCreated(int id) {
-    if (widget.onQRViewCreated == null) {
-      return;
-    }
-    widget.onQRViewCreated(QRViewController._(id, widget.key));
-  }
-}
-
-class _CreationParams {
-  _CreationParams({this.width, this.height});
-
-  static _CreationParams fromWidget(double width, double height) {
-    return _CreationParams(
-      width: width,
-      height: height,
-    );
-  }
-
-  final double width;
-  final double height;
-
-  Map<String, dynamic> toMap() {
-    return <String, dynamic>{
-      'width': width,
-      'height': height,
-    };
-  }
-}
-
-class QRViewController {
-  static const scanMethodCall = "onRecognizeQR";
-
-  final MethodChannel _channel;
-
-  StreamController<String> _scanUpdateController = StreamController<String>();
-
-  Stream<String> get scannedDataStream => _scanUpdateController.stream;
-
-  QRViewController._(int id, GlobalKey qrKey)
-      : _channel = MethodChannel('net.touchcapture.qr.flutterqr/qrview_$id') {
-    if (defaultTargetPlatform == TargetPlatform.iOS) {
-      final RenderBox renderBox = qrKey.currentContext.findRenderObject();
-      _channel.invokeMethod("setDimensions",
-          {"width": renderBox.size.width, "height": renderBox.size.height});
-    }
-    _channel.setMethodCallHandler(
-      (MethodCall call) async {
-        switch (call.method) {
-          case scanMethodCall:
-            if (call.arguments != null) {
-              _scanUpdateController.sink.add(call.arguments.toString());
-            }
-        }
-      },
-    );
-  }
-
-  void flipCamera() {
-    _channel.invokeMethod("flipCamera");
-  }
-
-  void toggleFlash() {
-    _channel.invokeMethod("toggleFlash");
-  }
-
-  void pauseCamera() {
-    _channel.invokeMethod("pauseCamera");
-  }
-
-  void resumeCamera() {
-    _channel.invokeMethod("resumeCamera");
-  }
-
-  void dispose() {
-    _scanUpdateController.close();
-  }
-}
+export 'src/qr_code_scanner.dart';
+export 'src/qr_scanner_overlay_shape.dart';

lib/src/qr_code_scanner.dart

@@ -0,0 +1,143 @@
+import 'dart:async';
+
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+
+typedef void QRViewCreatedCallback(QRViewController controller);
+
+class QRView extends StatefulWidget {
+  const QRView({
+    @required Key key,
+    @required this.onQRViewCreated,
+    this.overlay,
+  })  : assert(key != null),
+        assert(onQRViewCreated != null),
+        super(key: key);
+
+  final QRViewCreatedCallback onQRViewCreated;
+
+  final ShapeBorder overlay;
+
+  @override
+  State<StatefulWidget> createState() => _QRViewState();
+}
+
+class _QRViewState extends State<QRView> {
+  @override
+  Widget build(BuildContext context) {
+    return Stack(
+      children: [
+        _getPlatformQrView(),
+        widget.overlay != null
+            ? Container(
+                decoration: ShapeDecoration(
+                  shape: widget.overlay,
+                ),
+              )
+            : Container(),
+      ],
+    );
+  }
+
+  Widget _getPlatformQrView() {
+    Widget _platformQrView;
+    switch (defaultTargetPlatform) {
+      case TargetPlatform.android:
+        _platformQrView = AndroidView(
+          viewType: 'net.touchcapture.qr.flutterqr/qrview',
+          onPlatformViewCreated: _onPlatformViewCreated,
+        );
+        break;
+      case TargetPlatform.iOS:
+        _platformQrView = UiKitView(
+          viewType: 'net.touchcapture.qr.flutterqr/qrview',
+          onPlatformViewCreated: _onPlatformViewCreated,
+          creationParams: _CreationParams.fromWidget(0, 0).toMap(),
+          creationParamsCodec: StandardMessageCodec(),
+        );
+        break;
+      default:
+        throw UnsupportedError(
+            "Trying to use the default webview implementation for $defaultTargetPlatform but there isn't a default one");
+    }
+    return _platformQrView;
+  }
+
+  void _onPlatformViewCreated(int id) {
+    if (widget.onQRViewCreated == null) {
+      return;
+    }
+    widget.onQRViewCreated(QRViewController._(id, widget.key));
+  }
+}
+
+class _CreationParams {
+  _CreationParams({this.width, this.height});
+
+  static _CreationParams fromWidget(double width, double height) {
+    return _CreationParams(
+      width: width,
+      height: height,
+    );
+  }
+
+  final double width;
+  final double height;
+
+  Map<String, dynamic> toMap() {
+    return <String, dynamic>{
+      'width': width,
+      'height': height,
+    };
+  }
+}
+
+class QRViewController {
+  static const scanMethodCall = "onRecognizeQR";
+
+  final MethodChannel _channel;
+
+  StreamController<String> _scanUpdateController = StreamController<String>();
+
+  Stream<String> get scannedDataStream => _scanUpdateController.stream;
+
+  QRViewController._(int id, GlobalKey qrKey)
+      : _channel = MethodChannel('net.touchcapture.qr.flutterqr/qrview_$id') {
+    if (defaultTargetPlatform == TargetPlatform.iOS) {
+      final RenderBox renderBox = qrKey.currentContext.findRenderObject();
+      _channel.invokeMethod("setDimensions",
+          {"width": renderBox.size.width, "height": renderBox.size.height});
+    }
+    _channel.setMethodCallHandler(
+      (MethodCall call) async {
+        switch (call.method) {
+          case scanMethodCall:
+            if (call.arguments != null) {
+              _scanUpdateController.sink.add(call.arguments.toString());
+            }
+        }
+      },
+    );
+  }
+
+  void flipCamera() {
+    _channel.invokeMethod("flipCamera");
+  }
+
+  void toggleFlash() {
+    _channel.invokeMethod("toggleFlash");
+  }
+
+  void pauseCamera() {
+    _channel.invokeMethod("pauseCamera");
+  }
+
+  void resumeCamera() {
+    _channel.invokeMethod("resumeCamera");
+  }
+
+  void dispose() {
+    _scanUpdateController.close();
+  }
+}