大幅変更＆環境バージョンアップ

plugin/qr_code_scanner/ios/Classes/QRViewFactory.swift

@@ -0,0 +1,27 @@
+//
+//  QRViewFactory.swift
+//  flutter_qr
+//
+//  Created by Julius Canute on 21/12/18.
+//
+
+import Foundation
+
+public class QRViewFactory: NSObject, FlutterPlatformViewFactory {
+    
+    var registrar: FlutterPluginRegistrar?
+    
+    public init(withRegistrar registrar: FlutterPluginRegistrar){
+        super.init()
+        self.registrar = registrar
+    }
+    
+    public func create(withFrame frame: CGRect, viewIdentifier viewId: Int64, arguments args: Any?) -> FlutterPlatformView {
+        let params = args as! Dictionary<String, Double>
+        return QRView(withFrame: frame, withRegistrar: registrar!,withId: viewId, params: params)
+    }
+    
+    public func createArgsCodec() -> FlutterMessageCodec & NSObjectProtocol {
+        return FlutterStandardMessageCodec(readerWriter: FlutterStandardReaderWriter())
+    }
+}