全部合并了代码，安卓和 IOS 都测试通过了

黄学彪

2019-11-13 8b9ce384b26c414db32f98e94e088f5334869c2d

 ZigbeeApp/GateWay.Ios/AppDelegate.cs

@@ -23,13 +23,15 @@
            set;
        }

        internal static UINavigationController rootViewController;

        public override bool FinishedLaunching(UIApplication application, NSDictionary launchOptions)
        {
            base.FinishedLaunching(application, launchOptions);
            //base.FinishedLaunching(application, launchOptions);
            Shared.Application.FontSize = 12;
            Window = new UIWindow(UIScreen.MainScreen.Bounds);
            var root = new UINavigationController(new MainViewController()) { NavigationBarHidden = true };
            Window.RootViewController = root;
            rootViewController = new UINavigationController(new MainViewController()) { NavigationBarHidden = true };
            Window.RootViewController = rootViewController;
            Window.MakeKeyAndVisible();

            DeviceTokenAction += (deviceToken) =>
@@ -211,4 +213,49 @@
    }
}

 
namespace Shared
{
    public static class QRCode
    {
        static ZXing.Mobile.MobileBarcodeScanner scanner;
        public static async System.Threading.Tasks.Task ScanQRcode(Action<string> action, string topText = "", string bottomText = "", string cancel = "Cancel")
        {
            if (scanner == null)
            {
                scanner = new ZXing.Mobile.MobileBarcodeScanner(GateWay.Ios.AppDelegate.rootViewController) { FlashButtonText = "", TopText = topText, BottomText = bottomText, CancelButtonText = cancel };
            }

            var result = await scanner.Scan();

            if (result != null)
                action?.Invoke(result.Text);
            else
                action?.Invoke(null);
        }

        public static byte[] BytesFromText(string text, int width = 300, int height = 300)
        {
            var barcodeWriter = new ZXing.Mobile.BarcodeWriter
            {
                Format = ZXing.BarcodeFormat.QR_CODE,
                Options = new ZXing.Common.EncodingOptions
                {
                    Width = width,
                    Height = height,
                    Margin = 10
                }
            };

            barcodeWriter.Renderer = new ZXing.Mobile.BitmapRenderer();
            var uiImage = barcodeWriter.Write(text);
            var data = uiImage.AsJPEG();

            var resultBytes = new byte[data.Length];
            System.Runtime.InteropServices.Marshal.Copy(data.Bytes, resultBytes, 0, resultBytes.Length);

            return resultBytes;
        }
    }
}