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Tom Finet
7,027 PointsHow to communicate between fragment and dialogue fragment effectively?
Hi guys,
I just wanted to know if there is a widely accepted way of communicating between fragments and dialogue fragments. In my app I have a sign up fragment which calls a date picker dialogue fragment on the press of a button.
In order to communicate between the two fragments I have created an interface in the date picker dialogue fragment, which is implemented in the sign up fragment and basically saves the inputed date using google datastore.
A problem with having the interface and listener in the dialogue fragment is that as soon as the fragment is recreated (rotation, etc.), it will lose that listener and an npe error will occur when you try and call it.
So how do I communicate between fragments and dialogue fragments efficiently so that no errors occur?