Switching from screen 3 to 4 and app inventor crashes.
Switch screens correctly - 2 methods because you probably are not Travis.
Please show the code YOU used for specific advice.
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Use different screens wisely
- Before starting to create another screen, first you should think about is it really necessary?
- See also Building apps with many screens and SteveJG's post about advantages/disadvantages, because in only one screen you also can use vertical arrangements to simulate different screens, just set the arrangements to visible = true/false as needed...
- See also Martyn_HK's example about how to use Tabs in App Inventor and another example from Cyd. and my Tabbed Screens Demo
If you decided to use different screens, then you should switch them correctly, else you will run out of memory after a while...
The recommended method of switching screens in App Inventor
(Thanks Taifun)
Also see demo: multiscreen.aia
Also see Nested Screens
Switching from screen 3 to 4 and app inventor crashes.
Even a crash give you some indication of what is happening.
I bet there is some popup message appearing.
A memory overflow occurs when several screens are opened multiple times, so you / he should proceed exactly as described in the link (guide).