Question

I am posting some code to understand which array can be used globally in any activity and the array may be needed in any activity.

     Intent intent          =   getIntent();
     JSONArray beaconsArray     =   null;
     String jsonArray       =   intent.getStringExtra("activeBeaconsArray");
     try 
        {
            beaconsArray = new JSONArray(jsonArray);
            System.out.println(beaconsArray.toString(2));
        } 
     catch (JSONException e) { e.printStackTrace();}

Should i store beaconsArray in any static array variable in a separate class so that I can use it any activity wherever needed OR should I make parent class that will be super class of all those classes which need this array (beaconsArray ) ?
I do not want to fetch it again and again from database!

Answer 1

Create a class which extends Application class and add your data to it. Any data you add to it will be persistent till the app ends.

A good example can be found here,

Using the Android Application class to persist data

http://www.helloandroid.com/tutorials/maintaining-global-application-state

or you can go for Sharedperefernce. But you have to understand that data added to them are persistent unless you overwrite it.