Communicative Between Fragments on Android

Question

I am attempting to build an Android application that has two tabs, one for a textField/button and TreeMenu (where each element has a checkbox associated with it) and another for

Answer 1

As John said, when you want to access data in several activities, just create a class that extends Application:

import android.app.Application;

/**
 * Application class used to share data between activities.
 * @author Longeanie Christophe
 *
 */

public class MyApplication extends Application {


    //Put your class members here

    @Override
    public void onCreate() {
        //initialize what's needed here
    }

    //Getters and setters...
}

In all your activities, you can access this class and its data through this instruction:

MyApplication myApp = (MyApplication) getApplication();