Global data with Application Context - Tuong-Nguyen/Android GitHub Wiki

Global data that are shared between objects (such as: Activity - BroadcastReceiver - Service ...) can be put in Application instance.

Define Application context

1. Create a class which extends Appliation class
2. Add properties into this class for storing shared data.

public class GlobaVariables extends Application{
   private string text;
   public string getText(){
      return this.text;
   }

   public void setText(string text){
      this.text = text;
   }
}

Access application context

In classes where we want to access the shared data:

   text = (GlobalVariables) getApplicationContext().getText();