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BarcodeReader

This component scans the bar code by calling the camera to obtain the bar code content bar code/QR code

Install nuget package
use nuget.org conduct BootstrapBlazor.BarCode
.NET CLI
dotnet add package BootstrapBlazor.BarCode --version 7.0.0
PackageReference
<PackageReference Include="BootstrapBlazor.BarCode" Version="7.0.0" />
Package Manager
Install-Package BootstrapBlazor.BarCode -Version 7.0.0

Pay special attention to:

  • The site wants to enable https, which is required by browser vendors
  • The bar code recognition rate is related to the pixel, bar code size and mobile phone execution efficiency

The code is identified by the camera

Demo

How to do this:

  • Tap to start turning on the camera
  • Scan the barcode
  • Click the close button to turn off the camera

Scan code recognition with still pictures

Demo

How to do this:

  • Click the code to pop up the selection file box
  • Select a picture that contains barcodes
  • Start recognizing barcodes

Attributes

Loading...
@page "/barcodereaders"
@inject IStringLocalizer<BarcodeReaders> Localizer

<h3>BarcodeReader</h3>

<h4>This component scans the bar code by calling the camera to obtain the bar code content bar code/QR code</h4>

<Tips class="mt-3">
    <div><code>BarcodeReader</code> Component dependency then expansion package <code>BootstrapBlazor.BarCode</code>, please follow the prompts below for customized installation</div>
</Tips>

<div><b>Install nuget package</b></div>

<div class="mt-2">use <a href="https://www.nuget.org/packages?q=BootstrapBlazor.BarCode" target="_blank">nuget.org</a> conduct  <code>BootstrapBlazor.BarCode</code></div>

<div class="code-label mt-3">.NET CLI</div>
<Pre class="no-highlight">dotnet add package BootstrapBlazor.BarCode --version @Version</Pre>

<div class="code-label">PackageReference</div>
<Pre class="no-highlight"><PackageReference Include="BootstrapBlazor.BarCode" Version="@Version" /></Pre>

<div class="code-label">Package Manager</div>
<Pre class="no-highlight">Install-Package BootstrapBlazor.BarCode -Version @Version</Pre>

<p><b>Pay special attention to:</b></p>
<ul class="ul-demo">
    <li>@((MarkupString)Localizer["Li1"].Value )</li>
    <li>The bar code recognition rate is related to the pixel, bar code size and mobile phone execution efficiency</li>
</ul>

<DemoBlock Title="Basic usage" Introduction="The code is identified by the camera" Name="Normal">
    <p>How to do this:</p>
    <ul class="ul-demo mb-3">
        <li>Tap to start turning on the camera</li>
        <li>Scan the barcode</li>
        <li>Click the close button to turn off the camera</li>
    </ul>
    <BarcodeReader OnInit="@OnInit" OnResult="@OnResult" OnStart="@OnStart" OnClose="@OnClose" OnError="@OnError" />
    <BlockLogger @ref="Trace" class="mt-3" />
</DemoBlock>

<DemoBlock Title="Basic usage" Introduction="Scan code recognition with still pictures" Name="Image">
    <p>How to do this:</p>
    <ul class="ul-demo mb-3">
        <li>Click the code to pop up the selection file box</li>
        <li>Select a picture that contains barcodes</li>
        <li>Start recognizing barcodes</li>
    </ul>
    <BarcodeReader ScanType="@ScanType.Image" OnResult="@OnImageResult" OnError="@OnImageError" />
    <BlockLogger @ref="Trace2" class="mt-3" />
</DemoBlock>

<AttributeTable Items="@GetAttributes()" />
// Copyright (c) Argo Zhang (argo@163.com). All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
// Website: https://www.blazor.zone or https://argozhang.github.io/

using BootstrapBlazor.Shared.Services;

namespace BootstrapBlazor.Shared.Samples;

/// <summary>
/// 
/// </summary>
public sealed partial class BarcodeReaders
{
    [Inject]
    [NotNull]
    private VersionService? VersionManager { get; set; }

    private string Version { get; set; } = "fetching";

    [NotNull]
    private BlockLogger? Trace { get; set; }

    [NotNull]
    private BlockLogger? Trace2 { get; set; }

    /// <summary>
    /// <inheritdoc/>
    /// </summary>
    /// <returns></returns>
    protected override async Task OnInitializedAsync()
    {
        Version = await VersionManager.GetVersionAsync("bootstrapblazor.barcode");
    }

    private Task OnInit(IEnumerable<DeviceItem> devices)
    {
        var cams = string.Join("", devices.Select(i => i.Label));
        Trace.Log($"{Localizer["InitLog"]} {cams}");
        return Task.CompletedTask;
    }

    private Task OnImageResult(string barcode)
    {
        Trace2.Log($"{Localizer["ScanCodeLog"]} {barcode}");
        return Task.CompletedTask;
    }

    private Task OnImageError(string err)
    {
        Trace2.Log($"{Localizer["ErrorLog"]} {err}");
        return Task.CompletedTask;
    }

    private Task OnResult(string barcode)
    {
        Trace.Log($"{Localizer["ScanCodeLog"]} {barcode}");
        return Task.CompletedTask;
    }

    private Task OnError(string error)
    {
        Trace.Log($"{Localizer["ErrorLog"]} {error}");
        return Task.CompletedTask;
    }

    private Task OnStart()
    {
        Trace.Log(Localizer["OpenCameraLog"]);
        return Task.CompletedTask;
    }

    private Task OnClose()
    {
        Trace.Log(Localizer["CloseCameraLog"]);
        return Task.CompletedTask;
    }

    /// <summary>
    /// 获得属性
    /// </summary>
    /// <returns></returns>
    private IEnumerable<AttributeItem> GetAttributes() => new AttributeItem[]
    {
        new AttributeItem()
        {
            Name = "ButtonScanText",
            Description = Localizer["ButtonScanText"],
            Type = "string",
            ValueList = " — ",
            DefaultValue = Localizer["ButtonScanTextDefaultValue"]
        },
        new AttributeItem()
        {
            Name = "ButtonStopText",
            Description = Localizer["ButtonStopText"],
            Type = "string",
            ValueList = " — ",
            DefaultValue = Localizer["ButtonStopTextDefaultValue"]
        },
        new AttributeItem()
        {
            Name = "AutoStopText",
            Description = Localizer["AutoStopText"],
            Type = "string",
            ValueList = " — ",
            DefaultValue = Localizer["AutoStopTextDefaultValue"]
        },
        new AttributeItem()
        {
            Name = "DeviceLabel",
            Description = Localizer["DeviceLabel"],
            Type = "string",
            ValueList = " — ",
            DefaultValue = Localizer["DeviceLabelDefaultValue"]
        },
        new AttributeItem()
        {
            Name = "InitDevicesString",
            Description = Localizer["InitDevicesString"],
            Type = "string",
            ValueList = " — ",
            DefaultValue = Localizer["InitDevicesStringDefaultValue"]
        },
        new AttributeItem()
        {
            Name = "NotFoundDevicesString",
            Description = Localizer["NotFoundDevicesString"],
            Type = "string",
            ValueList = " — ",
            DefaultValue = Localizer["NotFoundDevicesStringDefaultValue"]
        },
        new AttributeItem()
        {
            Name = "AutoStart",
            Description = Localizer["AutoStart"],
            Type = "boolean",
            ValueList = "true|false",
            DefaultValue = "false"
        },
        new AttributeItem()
        {
            Name = "AutoStop",
            Description = Localizer["AutoStart"],
            Type = "boolean",
            ValueList = "true|false",
            DefaultValue = "false"
        },
        new AttributeItem()
        {
            Name = "ScanType",
            Description = "",
            Type = "ScanType",
            ValueList = "Camera|Image",
            DefaultValue = "Camera"
        },
        new AttributeItem()
        {
            Name = "OnInit",
            Description = Localizer["OnInit"],
            Type = "Func<IEnumerable<Camera>, Task>",
            ValueList = " — ",
            DefaultValue = " — "
        },
        new AttributeItem()
        {
            Name = "OnResult",
            Description = Localizer["OnResult"],
            Type = "Func<string, Task>",
            ValueList = " — ",
            DefaultValue = " — "
        },
        new AttributeItem()
        {
            Name = "OnStart",
            Description = Localizer["OnStart"],
            Type = "Func<Task>",
            ValueList = " — ",
            DefaultValue = " — "
        },
        new AttributeItem()
        {
            Name = "OnClose",
            Description = Localizer["OnClose"],
            Type = "Func<Task>",
            ValueList = " — ",
            DefaultValue = " — "
        },
        new AttributeItem()
        {
            Name = "OnError",
            Description = Localizer["OnError"],
            Type = "Func<string, Task>",
            ValueList = " — ",
            DefaultValue = " — "
        },
        new AttributeItem()
        {
            Name = "OnDeviceChanged",
            Description = Localizer["OnDeviceChanged"],
            Type = "Func<DeviceItem, Task>",
            ValueList = " — ",
            DefaultValue = " — "
        }
    };
}

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Bootstrap Blazor Component library updated to 7.0.8-beta05

Bootstrap Blazor at present has more than 120 components. This component is based on Bootstrap Blazor An enterprise-level component library that provides several types of common components such as layout, navigation, form, data, notification, icon, voice, etc. Each component has been carefully designed with modularity, responsiveness and excellent performance. Starting from more practical scenarios, meeting the needs of various scenarios, greatly reducing the time cost of developers, greatly shortening the development cycle, greatly improving development efficiency, and providing a set of General Rights Management System Example project。Bootstrap Blazor Products are maintained by a professional full-time technical team, with efficient response speed, diversified solutions, long-term support, and enterprise-level support. At present, it has been used in many well-known state-owned enterprises, and the project is running stably with a maximum of 1200 people online. On the right is the QR code of the Chinese Blazor QQ community with the largest number of people in China, welcome to scan and join the group.

component updated to 6.6.0 Change log [portal] If the component brings you convenience, please help to light up the project Star github gitee

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