Store objects in Android

Question

I would like to know what would be the best option to store a custom Java object that I have in my application. I\'ve read about serialization but it seems to be quite slow.

Answer 1

If you're not storing an over abundance of data you can use Gson to convert a Java object to a Json string and store the string in your app preferences. Gson has a toJson(obj) method and visa-vis.

Getting data out of app preferences and into an object:

String json = appSharedPrefs.getString("someName","");    
return gson.fromJson(json, YourModel.class);

To get data from your object into app preferences:

String json = gson.toJson(obj);

Then prefsEditor.putString("someName", json).apply().