keeping a variable value across all android activities

Question

I have a database with one row of data that will be used across a number of activities. I need to be able to keep the row id available in all activites so I can read and wri

Answer 1

Here you want to get mRowId values from all activity and it is primitive types, So

Either use Shared Preferences for store data or make your member field as a static globally, Then you can use this data in your whole application life cycle..

EDIT: Also you can use Application class as a singleton for your application and create field mRowId in this class and also make getter setter method for this field..