codebude
commented
5 years ago This is not the fault of QRCoder. It encodes exactly the string, which is given to it. The logic to open an app can't be handled by a QR code at all. It everytime the task of the scanner app.
So your request...
"protocol://api" should redirect to corresponding app, if there is not any, should show an error page in Safari (or in other browser)
...can't be handled within the specs of QR code.
Nevertheless it's possible to launch apps via QR code. But it works only, if the given uri scheme (protocol://api...) is registered in the iPhones plist. https://stackoverflow.com/questions/47636662/how-to-open-an-app-with-the-ios11-integrated-qrcode-reader
If it's not registered (app not available) the iPhone won't launch the app, but start a search. This is the standard behaviour.
Type of issue
[Doesn't support custom protocols ("protocol://api") ] Bug
Expected Behavior
"protocol://api" should redirect to corresponding app, if there is not any, should show an error page in Safari (or in other browser)
Current Behavior
"protocol://api" redirects to "{default search engine}.com/?q=protocol://api"
Possible Solution (optional)
Create a custom variable type to initilaize it as URL
Steps to Reproduce (for bugs)
qrCodeData = qrGenerator.CreateQrCode("protocol://api", QRCodeGenerator.ECCLevel.Q);
Your Environment
.NET 4.6.1 Win 7 x64
READER => iOS 12 (camera app)