Pierre Jelenc wrote:
I frequently have to display QR codes (in the default text-message app)
while passing the tip jar for various bands, while getting jostled by audience members as they move around
Does your phone have "App Pinning"? search for it in settings, lets you
start a single app, then pin it, requiring the lock code to exit that app.
If not then maybe set the QR as a wallpaper?
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