Fixed scan area not honored

example/ios/Runner.xcodeproj/project.pbxproj

@@ -168,7 +168,7 @@
 				TargetAttributes = {
 					97C146ED1CF9000F007C117D = {
 						CreatedOnToolsVersion = 7.3.1;
-						DevelopmentTeam = RCH2VG82SH;
+						DevelopmentTeam = 5LSCTACHT8;
 						LastSwiftMigration = 1020;
 						ProvisioningStyle = Automatic;
 					};
@@ -250,13 +250,11 @@
 			);
 			inputPaths = (
 				"${PODS_ROOT}/Target Support Files/Pods-Runner/Pods-Runner-frameworks.sh",
-				"${PODS_ROOT}/../Flutter/Flutter.framework",
 				"${BUILT_PRODUCTS_DIR}/MTBBarcodeScanner/MTBBarcodeScanner.framework",
 				"${BUILT_PRODUCTS_DIR}/qr_code_scanner/qr_code_scanner.framework",
 			);
 			name = "[CP] Embed Pods Frameworks";
 			outputPaths = (
-				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/Flutter.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/MTBBarcodeScanner.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/qr_code_scanner.framework",
 			);
@@ -372,7 +370,7 @@
 				CODE_SIGN_IDENTITY = "iPhone Developer";
 				CODE_SIGN_STYLE = Automatic;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
-				DEVELOPMENT_TEAM = RCH2VG82SH;
+				DEVELOPMENT_TEAM = 5LSCTACHT8;
 				ENABLE_BITCODE = NO;
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(inherited)",
@@ -510,7 +508,7 @@
 				CODE_SIGN_IDENTITY = "iPhone Developer";
 				CODE_SIGN_STYLE = Automatic;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
-				DEVELOPMENT_TEAM = RCH2VG82SH;
+				DEVELOPMENT_TEAM = 5LSCTACHT8;
 				ENABLE_BITCODE = NO;
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(inherited)",
@@ -541,7 +539,7 @@
 				CODE_SIGN_IDENTITY = "iPhone Developer";
 				CODE_SIGN_STYLE = Automatic;
 				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
-				DEVELOPMENT_TEAM = RCH2VG82SH;
+				DEVELOPMENT_TEAM = 5LSCTACHT8;
 				ENABLE_BITCODE = NO;
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(inherited)",

ios/Classes/QRView.swift

@@ -72,14 +72,23 @@ public class QRView:NSObject,FlutterPlatformView {
     }
     
     func setDimensions(width: Double, height: Double, scanArea: Double) -> Void {
+        // First set the size of the preview area.
         previewView.frame = CGRect(x: 0, y: 0, width: width, height: height)
+        
+        // Then set the size of the scan area.
         let midX = self.view().bounds.midX
         let midY = self.view().bounds.midY
+        
+        // Check if the scanner is already created.
         if let sc: MTBBarcodeScanner = scanner {
             if let previewLayer = sc.previewLayer {
                 previewLayer.frame = previewView.bounds;
             }
+            if (scanArea != 0) {
+                sc.scanRect = CGRect(x: Double(midX) - (scanArea / 2), y: Double(midY) - (scanArea / 2), width: scanArea, height: scanArea)
+            }
         } else {
+            // Create a scanner view if it doesn't exist yet.
             scanner = MTBBarcodeScanner(previewView: previewView)
             
             if (scanArea != 0) {
@@ -91,7 +100,10 @@ public class QRView:NSObject,FlutterPlatformView {
     }
     
     func startScan(_ arguments: Array<Int>, _ result: @escaping FlutterResult) -> Void {
-        scanner = MTBBarcodeScanner(previewView: previewView)
+        if (scanner == nil) {
+            scanner = MTBBarcodeScanner(previewView: previewView)
+        }
+        
         
         var allowedBarcodeTypes: Array<AVMetadataObject.ObjectType> = []
         arguments.forEach { arg in