Question

How can I register data (like integer or poco objects) shared by all activity like the id of the user ? Have I to use a simple singleton or is there a special Android way ?

Note : I don’t need to make that data persistant (no need of SharedPreferences or sqlite)

Thank you

Answer 1

You can create your own class that implements Application and specify this in your manifest file. In that case, every time you call getApplicationContext you will get a reference of your application that can hold any kind of information.

• How to declare global variables in Android?

Sample code:

class MyApplication extends Application {
  public void setMethod() {
    //
  }
}

((MyApplication)getApplicationContext()).setMethod()