#scanbarcode

[harmonyos-next]

HarmonyOS NEXT Practical: QR Code and Scan Code

Objective: To generate a QR code and read its information by scanning the code.

Knowledge points: QRCode： A component used to display a single QR code. interface [code] QRCode(value: string) [/code] value： QR code content string. The maximum support is 512 characters. If exceeded, the first 512 characters will be truncated. Explanation: The string content is guaranteed to be valid and does not support null, undefined, or empty content. When the above content is passed in, an invalid QR code will be generated.

QRCode attribute color： Set the color of the QR code. Default value: '# ff000000'， And it does not follow the system's switching between light and dark modes for modification. backgroundColor： Set the background color of the QR code. Default value: Color.White， Starting from API version 11, the default value has been changed to '#ffffff', and it does not change with the system's light and dark mode switching. contentOpacity： Set the opacity of the color of the QR code content. The minimum and maximum opacity values are 0 and 1, respectively. Value range: [0, 1]. If it exceeds the value range, it will be treated as the default value.

ScanBarcode (default interface scan code) This module provides default interface scanning capability.

ScanResult: Scan code result.

ScanCodeRect: Position information of the code. Using the default scanning interfaces (startScan and startScanForResult) does not return the code position.

Point: Point coordinates, the top left corner of the coordinate system is {0,0}.

ScanOptions: Scanning and code recognition parameters.

ScanResult attribute

ScanType: Code type.

OriginalValue: The result of code recognition content.

ScanCodeRect: Code recognition location information.

CornerPoints: Identify the position information of corner points and return the four corner points of the QR Code.

ScanOptions attribute

ScanTypes sets the scanning type, default scanning is ALL (all code types).

Whether enableMultiMode enables multi code recognition, defaults to false. true： Multi code recognition. false： Single code recognition.

Whether enableAlbum opens an album, defaults to true. true： Open the photo album and scan the QR code. false： Close the photo album and scan the QR code.

scanBarcode.startScanForResult Call the default interface to scan the code by configuring parameters, and use Promise asynchronous callback to return the decoding result. It needs to be called within the lifecycle of the page and components.

scanBarcode.startScan Call the default interface to scan the code by configuring parameters, and use Promise asynchronous callback to return the scan result.

Actual combat:ScanCodeDemoPage [code] import { scanBarcode, scanCore } from '@kit.ScanKit'; import { hilog } from '@kit.PerformanceAnalysisKit'; import { BusinessError } from '@kit.BasicServicesKit';

@Entry @Component struct ScanCodeDemoPage { codeMsg: string = '二维码信息通常为链接，以及json数据' @State getCodeMsg: string = ''

build() { Column({ space: 10 }) { Text('二维码Demo') Text('生成二维码：') QRCode(this.codeMsg).width(140).height(140) Button('扫码').onClick(() => { // 构造启动扫码的入参options let options: scanBarcode.ScanOptions = { scanTypes: [scanCore.ScanType.ALL], enableMultiMode: true, enableAlbum: true }; try { scanBarcode.startScan(options, (error: BusinessError, result: scanBarcode.ScanResult) => { // error回调监听，当扫码过程中出现错误打印报错并返回 if (error) { hilog.error(0x0001, '[Scan Sample]', `Failed to get ScanResult by callback with options. Code: ${error.code}, message: ${error.message}`); return; } hilog.info(0x0001, '[Scan Sample]', `Succeeded in getting ScanResult by callback with options, result is ${JSON.stringify(result)}`); this.getCodeMsg = result.originalValue }); } catch (error) { hilog.error(0x0001, '[Scan Sample]', `Failed to startScan. Code: ${error.code}, message: ${error.message}`); } }) Text('扫码后得到的信息为：') Text(this.getCodeMsg) } .height('100%') .width('100%') .padding({ top: 10, bottom: 10, right: 20, left: 20 })

} } [/code]

[fingerprintmurah]

Bisnismu Makin Lengkap Jika Pakai Barcode Scanner Logic LS - 30A

Barcode Sanner dilengkapi dengan stand,harga terjangkau Spesifikasi : Handheld barcode scanner, with Stand Single line laser, 650nm visible laser diode Scan rate : 300 scan/second Resolution : >= 3mil (1mil = 0,0254 mm) Depth of field : 5-650 mm Drop test : 1,5 meter Interface support : USB Tertarik? cek harga yuk!

[dynamsoftbarcodereader]

Robust Barcode Scanner SDK - Quick Implementation

Barcode Scanner from Dynamsoft lets you quickly implement barcode scanning into web, desktop or mobile apps. It is a high-speed, accurate & robust barcode reader SDK.

To know more visit: https://www.dynamsoft.com/barcode-reader/overview/

[sohanahospital]

View this post on Instagram

A post shared by Sohana Hospital (@sohanahospital)

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[sidehustler]

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[akidhaveheart]

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[nouwaclothing]

Scan to add on IG‼️

[zainbutt-446-blog]

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[lannaswellnessjournal]

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[artistshashi-blog]

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[appmobeco]

Simple QR reader and free qr code scanner

QR scanner, a simple barcode scanner, scans all qr codes you need, top app for your work.

QR code scanner is the most user-friendly barcode reader application, helping you scan barcodes and check barcodes quickly. At the same time, you can also create your own qr codes for web addresses, business cards, messages, texts, and destination links to have beautiful qr codes and share them with your friends.

QR code scanning application with fast speed, easy-to-use, and free basic features.

Link app: https://play.google.com/store/apps/details?id=com.vtool.qrcodereader.barcodescanner

#qrcode #scanbarcode #scanqr 

[wickerresidentialcleaning]

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[dynamsoftbarcodereader]

Regarding the types of barcodes, all barcodes can be divided into one-dimensional barcodes and two-dimensional barcodes. The classification is based on how it is presented. A barcode is essentially a method of representing data in a visual, machine-readable form. One-dimensional or one-dimensional barcodes are represented by black and white parallel lines. Hence, they are also called linear barcodes. On the other hand, 2D barcodes are made up of hexagons, dots, and rectangles. Reading 1D and 2D barcodes requires a dedicated optical scanner, also called a barcode scanner or barcode reader. Today, a smartphone can also be turned into a barcode scanner by installing dedicated barcode scanning apps. Or you can use the online barcode scanner on your laptop or tablet to scan various types of barcodes.

To know more visit the webpage: https://www.dynamsoft.com/barcode-reader/overview/

[dynamsoftbarcodereader]

Scan Unreadable Barcodes and QR Codes

Dynamsoft's enterprise-grade barcode scanner SDK is a robust solution for decoding the most challenging barcodes. It can easily handle various tough codes that are curved, tiny, marked up, angled. With customized scanning parameters, application developers can read damaged barcodes easily, significantly improving barcode recognition accuracy and decoding rate. Manual human reviews can be eliminated to cut costs and streamline processes.

To know more visit  website: https://www.dynamsoft.com/barcode-reader/overview/

[akidhaveheart]

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