Does 'quit' have a place in iOS apps?

[Gerry Orkin]

LC iOS apps don't stay alive when you quit them with the Home button. You can save and restore things to give the impressions of a quit and resume, but the app itself is killed when you quit.

In my experience the "on shutdown" command is the best place to put stuff you want to do when the app quits.


Gerry





On 19/02/2012, at 8:39 PM, Graham Samuel wrote:

> AFAICS, iOS apps don't have an overt 'quit' button, since simply pressing the physical button on the device (I forgot its name) quits whatever is running. However this isn't quite right is it, since apps can go on being present and maybe actually running in the background. And then there is the question of what happens when your app gets itself into an unexpected state and has no alternative but to exit, which presumably would mean using a 'quit' command. Again, from the slender evidence I have, an explicit 'quit' may cause iOS to restart your app, tho not apparently in all circumstances. I have not yet found out the difference between stopping and leaving the app running in the background and really killing the app.
> 
> Has anyone a clearer picture of how and why one would use 'quit' in the script of an iOS app?
> 
> TIA
> 
> Graham
> 
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