I have a question about the action of "back" button clicked. I knew there is a way to handler BackPressed in screen, but it only provided the options of yes/no/cancel, actually instead of "no" or "cancel", I would like to put the app running in background as "home" button clicked.
do you have any suggestion?
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Use Android Studio. App Inventor apps cannot run as a Service. That means they cannot run in the background. Also AI can use the BackPressed soft key but cannot use the Home soft key.
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Actually I did see your reply regarding this topics, basically AI2 does not support it.
And the reason I am still asking this question is because it seems to be working in some extent. For my APK, I started BLE connections, and I can send commands to BLE server to control the LED light for example, if I clicked "home" button or "power" button, the application is actually running in background for my understanding, then I selected this app back by collapse application window, I can see BLE connection is still here (I use timer to count it) and I still can control the remote by sending data via BLE connection.
However, it will NOT work when I click "back" button, That is why I was keeping asking about it. Is there any way to put app as clicking "home" button.
You did NOT read this part ' AI can use the BackPressed soft key but cannot use the Home soft key.' AI cannot use the Home soft key but Android Studio can.
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I understood your point. I was not looking for AI to use Home Soft Key, but my question is that when "backPressed", can AI do similar thing as "home" key pressed? since right now as I mentioned, there are three options "yes/no/cancel", surely, I did not want to quit the applicaiton, but just want it running as "home" key pressed.
not sure if we can do it
You might be using the HOME button as a start extra task button,
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if your Android settings don't destroy other tasks.
This is the equivalent of alt-tabbing in Windows.
I don't believe the first app runs, it just
is suspended.
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