Android equivalent to NSNotificationCenter

Question

In the process of porting an iPhone application over to android, I am looking for the best way to communicate within the app. Intents seem to be the way to go, is this the b

Answer 1

You could use weak references.

This way you could manage the memory yourself and add and remove observers as you please.

When you addObserver add these parameters - cast that context from the activity you are adding it in to the empty interface, add a notification name, and call the method to run interface.

The method to run interface would have a function that is called run to return the data that you are passing something like this

public static interface Themethodtorun {
        void run(String notification_name, Object additional_data);
    }

Create a observation class that invokes a reference with a empty interface. Also construct your Themethodtorun interface from the context being passed in the addobserver.

Add the observation to a data structure.

To call it would be the same method however all you need to do is find the specific notification name in the data structure, use the Themethodtorun.run(notification_name, data).

This will send a callback to where ever you created an observer with a specific notification name. Dont forget to remove them when your done!

This is good reference for weak references.

http://learningviacode.blogspot.co.nz/2014/02/weak-references-in-java.html

I am in the process of uploading this code to github. Keep eyes open!