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All code can be found on my GitHub page for it. I have created a new Xamarin.Forms project and am targeting iOS and Android.
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I will be using Visual Studio for Mac, but everything should work on Windows as well. This version is also available through NuGet as we will see in a minute. The Xamarin.Forms specific port can be found here: and is created by Jonathan Dick. You can find background information on their GitHub page. I will use the ZXing library for this sample.
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Both can do mostly the same thing and have libraries for usage in Xamarin apps. The most notable ones are ZXing (short for Zebra Crossing) and Scandit. There are multiple libraries out there that allow you to work with barcodes. The parts between angle brackets will be replaced with actual values. Underneath you can see what each letter stands for. All parts of the string are then key/value pairs separated by a colon. The order of the parameters doesn’t really matter. The string format looks like this: WIFI:S: T: P: When this string is recognized in a QR code, the OS will suggest that you connect to the network with the settings encoded in that QR code.
#Xamarin visual studio web api android#
The QR code, is nothing more than a string in a certain format that has been standardized and implemented in the operating system of Android and iOS. While that technically is possible, that is not the scope of this article.įor this app, we will focus on generating a QR code that can connect a user to a Wi-Fi network, and scan a QR code to see what it contains. We are not actually connecting people to Wi-Fi with our app. In the app that we are building in this tutorial, we will read and generate QR codes that will allow people to connect to a certain Wi-Fi network. The latter is what we will be focussing on in our sample app. You can see barcodes on every book, every product from the supermarket, you might see QR codes on stickers on advertisements on bus stops or you can even connect guests to your Wi-Fi connection with a QR code. Also, it can hold much more data than the traditional barcodes.Īs I have already mentioned, although the technique is quite old, barcodes still play a big role in today’s world. Some benefits of the QR code is that it can be read even when it is damaged. Both hold the same data.ĭepending on its appliance, a certain format might be preferred. You can see these two formats in Figure 1.įigure 1: 1-dimensional barcode(left) and QR code(right). The most famous ones are the simple 1D barcode, the one with just the vertical stripes, and the QR code, the square, black and white barcode. Over time, numerous barcode formats have been invented.