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Appinventor: How to set button/label visible after certain date has passed

I tried to add some function to an app i am creating and started a new project for it.

I want to display or hide a button after a certain (set) date has passed. But I cannot get it to work.

(I am also not a programmer, I search the web, watch youtube and just try to play/edit with blocks to get it to work, but i am stuck now)

Appinventor Blocks Screen enter image description here

Solution

  • enter image description here

    see also the documentation of the clock component and its methods here http://ai2.appinventor.mit.edu/reference/components/sensors.html#Clock

    A very good way to learn App Inventor is to read the free Inventor's Manual here in the AI2 free online eBook http://www.appinventor.org/book2 ... the links are at the bottom of the Web page. The book 'teaches' users how to program with AI2 blocks. There is a free programming course here http://www.appinventor.org/content/CourseInABox/Intro and the aia files for the projects in the book are here: http://www.appinventor.org/bookFiles
    How to do a lot of basic things with App Inventor are described here: http://www.appinventor.org/content/howDoYou/eventHandling .

    Also do the tutorials http://appinventor.mit.edu/explore/ai2/tutorials.html to learn the basics of App Inventor, then try something and follow the Top 5 Tips: How to learn App Inventor