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Is there a "refresh" ability on an activity?

James Elsey
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Joined: Dec 21, 2007
Posts: 228

I have an activity, inside the onCreate() method it pulls some data from another class

That data might change, how can I refresh it? Do I need to call onCreate() somehow, or is there an easier way?


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Piyush Patel
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Joined: Feb 24, 2009
Posts: 127

Hi,James

James Elsey : how can I refresh it? Do I need to call onCreate()


you can't call onCreate() method that is Andoird life cycle method. that is being managed by Android OS.

To get refreshed data from another class you can put the code inside onStart() method. that is being called after onCreate().

Go through Android Life Cycle

Thanks :-)

Monu Tripathi
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Joined: Oct 12, 2008
Posts: 1369
    
    1

Note that an Activity is created, started, resumed,paused, stopped or destroyed automatically by the system depending on events generated by user. There are callbacks with similar names that help you setup your activity and do what you wish to do across activity life cycle.
What you are referring to is refreshing your data set/data store. There is a subtle difference between the two.

You can refresh your data set any time you wish(by calling appropriate method on your data store instance). And if you do it inside correct Activity life cycle method, your users will see updated data every time.

For e.g.: onResume() is called whenever an Activity is brought to the front. So, if you refresh your data set in onResume() the user will see updated view every time.


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