Why does the page sometimes freeze when I start the scanner?

Before a barcode reader instance can be created, a one-time connection for license validation needs to occur when the app initializes (or whenever the license is set before the barcode reader instance creation). Sometimes, this license validation could take a second to complete and could cause the UI to appear frozen.

A potential “freeze” of the page can occur if initLicense() is called multiple times in a single process. For example, if you call initLicense in both the AppDelegate and the ViewController, a conflict might occur. Please make sure that initLicense is called only once, ideally in the AppDelegate.

To help troubleshoot whether the method is being called multiple times, we recommend stepping through the code using a debugger.