blockchain scan qr code

I have done some work on the identification and generation of QR codes. Summary. Obviously, we will not spend a lot of effort to write this recognition process on our own. This may involve manual identification, so to be lazy, I thought of finding such an open-source tool on the Internet. Go to their official website and draw the following conclusions: Zbar can scan the

Android QR code creation, android The QR code has entered our lives, and more people are using it to make our lives easier. I have heard of a joke, when we die, there will no longer be any inscription on the tombstone, but there will be a QR

From: Niche software-appinn Psytec QR code editor is a software used to create QR code information. It can contain phone book, email, network address, text, and other information. What is a QR code first? A

= AVCaptureVideoPreviewLayer (session: captureSession !) VideoPreviewLayer !. VideoGravity = AVLayerVideoGravityResizeAspectFill videoPreviewLayer !. Frame = view. bounds view. layer. addSublayer (videoPreviewLayer !) }} PS: LZ used to scan Sina Weibo and found that the scan box was dumb, that is, you didn't point it at the QR

Android: Use ZXing to generate a QR code (Logo design can be added) ZXing is an open-source library of Google that can be used to generate and scan QR codes. This article introduces the first part. First: ZXing-related files official: https://github.com/zxing/zxing/releases Or download it here (only the jar package us

http://blog.csdn.net/abcmx/article/details/8011904Now the two-dimensional code everywhere, whether it is physical goods or a variety of vouchers are the two-dimensional code of the figure. Mobile devices, such as mobile phones, have become a good application platform for QR codes, whether it is to generate QR codes or

Preface Series of articles:[Portal] I have been idle for weeks. No, no. Blog, I don't know when you will change it. I will not forget you. Well, I will also update it on the OS and csdn. Every day, no matter how useful or useless. Body The main body of this article is to start with a project, with clear requirements in the project. Scan the QR code to implement t

Android QR code scanning (zxing usage summary) There are three main points: 1. Draw the interface, including four corners, scrolling up and down, and adding text to the canvas 2. Adjust the position of the QR code scan box. 3. Solve the Problem of image deformation. 1. Draw

example, a two-dimensional code with different scenario values is placed on each page to differentiate the page on which users scan more people.You can also group users based on the scenario values. You can send specific messages to group users. In fact, it is very simple. The scenario value is defined in your own system for distinguishing different sources. For example, a

[Open Source] QR code is signed in to the mobile phone andriod version for download !, Open-source login andriod Recently, at the request of many people, my easy sign-In QR code sign-In andriod edition is now available, and you can complete its functions as needed. QR

The method of scanning code login is more and more used by current application. Because it does not have to remember the password, as long as the number can be easily and quickly login. This is based on a public platform with the temporary QR Code, and combined with the Swoole WebSocket service to implement the scan