Thanks for the link. I have now switched to the extension ClickEvent. Works in my app as well.
Thank you very much for your efforts.
I test your extension regarding the error.
Which extension should I use? The version in the 1st post or the version created with Rush?
The extension using Rush produces an error when dragging it into the mobile phone in the designer, see:
error.txt (5.3 KB)
Your extension from the first post seems to work after the first tests. I keep testing...