11.01.2011 23:10, John Gaby пишет:
Broadcast receivers are only guaranteed to stay around long enough for
> their onReceive to complete. They can be destroyed after that, and a new
> instance will be created if needed later.
>
Given that it creates a new instance of my AppWidgeProvider class for
each call, is there a way to have persistent data associated with my
widget? That is how can I store data that will still be present on
the next call (other than writing it to disk)?
Well, there isn't a special mechanism just for widgets that I know of.
You can:
- Use SharedPreferences;
- Cache data in a static (singleton), since the process just might stick
around longer than the receiver;
- Combine the above two methods;
- For anything beyond a certain level of complexity, it's probably a
good idea to delegate at least some of your widget logic to a service
(the Wikipedia wiget sample does this, although for a different reason).
--
Kostya Vasilyev -- WiFi Manager + pretty widget -- http://kmansoft.wordpress.com
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