I am having an issue with tabs, and I figure someone will know how this works. Basically I am trying to pass data between tabs in an app, but I am not sure how to do this. I had it set up before where a button would change the activity, but when I moved it to a tabbed view, I lost a way to pass the info through intents like I was doing before. Basically my set up now is:
It would be awesome if I could somehow pass the info through intents still, but I am not sure if that can work, it would also work if somehow in one of the activities I could access the sharedpreferences from the other. Is there anyway to do either of these? Thanks in advance.
WWaldo
Passing data between Activities which are the contents of Tabs is tricky.
One way that you can try is to us a 'sticky' Intent. Take a look at sendStickyBroadcast - you'll need to have a BroadcastReceiver in each Activity to process the sticky Intent which you can do by defining a private nested class extending BroadcastReceiver.
As far as SharedPreferences are concerned, this can be done at the app level by specifying a filename for the SharedPreferences rather than using Activity-based preferences.
See getSharedPreferences(String name, int mode) - as long as both Activities specify the same filename they will both gain access to the same SharedPreferences file.