这个示例演示整合了Aran和微软的示例，无需修改即可运行。
支持识别，二维码/一维码，需要在包清单管理器勾选摄像头权限。
首先右键项目引用，打开Nuget包管理器搜索安装：ZXing.Net.Mobile
BarcodePage.xmal页面代码
<Page x:Class="SuperTools.Views.BarcodePage" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="using:SuperTools.Views" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d"> <Page.Transitions> <TransitionCollection> <NavigationThemeTransition> <SlideNavigationTransitionInfo /> </NavigationThemeTransition> </TransitionCollection> </Page.Transitions> <Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"> <Grid x:Name="LayoutRoot" > <Grid x:Name="ContentPanel" > <!--视频流预览--> <CaptureElement x:Name="VideoCapture" Stretch="UniformToFill"/> <Grid Width="300" Height="300" x:Name="ViewGrid"> <Rectangle Width="3" Height="50" Fill="Orange" HorizontalAlignment="Left" VerticalAlignment="Top"/> <Rectangle Width="3" Height="50" Fill="Orange" HorizontalAlignment="Right" VerticalAlignment="Top"/> <Rectangle Width="3" Height="50" Fill="Orange" HorizontalAlignment="Left" VerticalAlignment="Bottom"/> <Rectangle Width="3" Height="50" Fill="Orange" HorizontalAlignment="Right" VerticalAlignment="Bottom"/> <Rectangle Width="50" Height="3" Fill="Orange" HorizontalAlignment="Left" VerticalAlignment="Top"/> <Rectangle Width="50" Height="3" Fill="Orange" HorizontalAlignment="Right" VerticalAlignment="Top"/> <Rectangle Width="50" Height="3" Fill="Orange" HorizontalAlignment="Left" VerticalAlignment="Bottom"/> <Rectangle Width="50" Height="3" Fill="Orange" HorizontalAlignment="Right" VerticalAlignment="Bottom"/> <Rectangle x:Name="recScanning" Margin="12,0,12,0" VerticalAlignment="Center" Height="2" Fill="Green" RenderTransformOrigin="0.5,0.5" /> </Grid> </Grid> </Grid> </Grid> </Page>
BarcodePage.xmal.cs后台代码
using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Runtime.InteropServices.WindowsRuntime; using System.Threading.Tasks; using Windows.ApplicationModel; using Windows.Devices.Enumeration; using Windows.Foundation; using Windows.Foundation.Collections; using Windows.Graphics.Display; using Windows.Graphics.Imaging; using Windows.Media; using Windows.Media.Capture; using Windows.Media.Devices; using Windows.Media.MediaProperties; using Windows.Storage; using Windows.Storage.FileProperties; using Windows.Storage.Streams; using Windows.UI.Core; using Windows.UI.Xaml; using Windows.UI.Xaml.Controls; using Windows.UI.Xaml.Controls.Primitives; using Windows.UI.Xaml.Data; using Windows.UI.Xaml.Input; using Windows.UI.Xaml.Media; using Windows.UI.Xaml.Media.Imaging; using Windows.UI.Xaml.Navigation; using ZXing; // https://go.microsoft.com/fwlink/?LinkId=234238 上介绍了“空白页”项模板 namespace SuperTools.Views { /// <summary> /// 可用于自身或导航至 Frame 内部的空白页。 /// </summary> public sealed partial class BarcodePage : Page { private Result _result; private MediaCapture _mediaCapture; private DispatcherTimer _timer; private bool IsBusy; private bool _isPreviewing = false; private bool _isInitVideo = false; BarcodeReader barcodeReader; private static readonly Guid RotationKey = new Guid("C380465D-2271-428C-9B83-ECEA3B4A85C1"); public BarcodePage() { barcodeReader = new BarcodeReader { AutoRotate = true, Options = new ZXing.Common.DecodingOptions { TryHarder = true } }; this.InitializeComponent(); this.NavigationCacheMode = NavigationCacheMode.Required; Application.Current.Suspending += Application_Suspending; Application.Current.Resuming += Application_Resuming; } private async void Application_Suspending(object sender, SuspendingEventArgs e) { // Handle global application events only if this page is active if (Frame.CurrentSourcePageType == typeof(MainPage)) { var deferral = e.SuspendingOperation.GetDeferral(); await CleanupCameraAsync(); deferral.Complete(); } } private void Application_Resuming(object sender, object o) { // Handle global application events only if this page is active if (Frame.CurrentSourcePageType == typeof(MainPage)) { InitVideoCapture(); } } protected override async void OnNavigatingFrom(NavigatingCancelEventArgs e) { // Handling of this event is included for completenes, as it will only fire when navigating between pages and this sample only includes one page await CleanupCameraAsync(); } protected override void OnNavigatedTo(NavigationEventArgs e) { base.OnNavigatedTo(e); InitVideoCapture(); } private async Task CleanupCameraAsync() { if (_isPreviewing) { await StopPreviewAsync(); } _timer.Stop(); if (_mediaCapture != null) { _mediaCapture.Dispose(); _mediaCapture = null; } } private void InitVideoTimer() { _timer = new DispatcherTimer(); _timer.Interval = TimeSpan.FromSeconds(1); _timer.Tick += _timer_Tick; _timer.Start(); } private async Task StopPreviewAsync() { _isPreviewing = false; await _mediaCapture.StopPreviewAsync(); // Use the dispatcher because this method is sometimes called from non-UI threads await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () => { VideoCapture.Source = null; }); } private async void _timer_Tick(object sender, object e) { try { if (!IsBusy) { IsBusy = true; var previewProperties = _mediaCapture.VideoDeviceController.GetMediaStreamProperties(MediaStreamType.VideoPreview) as VideoEncodingProperties; VideoFrame videoFrame = new VideoFrame(BitmapPixelFormat.Bgra8, (int)previewProperties.Width, (int)previewProperties.Height); VideoFrame previewFrame = await _mediaCapture.GetPreviewFrameAsync(videoFrame); WriteableBitmap bitmap = new WriteableBitmap(previewFrame.SoftwareBitmap.PixelWidth, previewFrame.SoftwareBitmap.PixelHeight); previewFrame.SoftwareBitmap.CopyToBuffer(bitmap.PixelBuffer); await Task.Factory.StartNew(async () => { await ScanBitmap(bitmap); }); } IsBusy = false; await Task.Delay(50); } catch (Exception) { IsBusy = false; } } /// <summary> /// 解析二维码图片 /// </summary> /// <param name="writeableBmp">图片</param> /// <returns></returns> private async Task ScanBitmap(WriteableBitmap writeableBmp) { try { await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () => { _result = barcodeReader.Decode(writeableBmp.PixelBuffer.ToArray(), writeableBmp.PixelWidth, writeableBmp.PixelHeight, RGBLuminanceSource.BitmapFormat.Unknown); if (_result != null) { //TODO: 扫描结果：_result.Text } }); } catch (Exception) { } } private async void InitVideoCapture() { ///摄像头的检测 var cameraDevice = await FindCameraDeviceByPanelAsync(Windows.Devices.Enumeration.Panel.Back); if (cameraDevice == null) { System.Diagnostics.Debug.WriteLine("No camera device found!"); return; } var settings = new MediaCaptureInitializationSettings { StreamingCaptureMode = StreamingCaptureMode.Video, MediaCategory = MediaCategory.Other, AudioProcessing = AudioProcessing.Default, VideoDeviceId = cameraDevice.Id }; _mediaCapture = new MediaCapture(); await _mediaCapture.InitializeAsync(settings); VideoCapture.Source = _mediaCapture; await _mediaCapture.StartPreviewAsync(); var props = _mediaCapture.VideoDeviceController.GetMediaStreamProperties(MediaStreamType.VideoPreview); props.Properties.Add(RotationKey, 90); await _mediaCapture.SetEncodingPropertiesAsync(MediaStreamType.VideoPreview, props, null); var focusControl = _mediaCapture.VideoDeviceController.FocusControl; if (focusControl.Supported) { await focusControl.UnlockAsync(); var setting = new FocusSettings { Mode = FocusMode.Continuous, AutoFocusRange = AutoFocusRange.FullRange }; focusControl.Configure(setting); await focusControl.FocusAsync(); } _isPreviewing = true; _isInitVideo = true; InitVideoTimer(); } private static async Task<DeviceInformation> FindCameraDeviceByPanelAsync(Windows.Devices.Enumeration.Panel desiredPanel) { var allVideoDevices = await DeviceInformation.FindAllAsync(DeviceClass.VideoCapture); DeviceInformation desiredDevice = allVideoDevices.FirstOrDefault(x => x.EnclosureLocation != null && x.EnclosureLocation.Panel == desiredPanel); return desiredDevice ?? allVideoDevices.FirstOrDefault(); } } }