Pass variable value to class (NOT intent) from home activity

Question

I need to update a variable (via setter, I think) in a class that is not the intent class of a button. I need to set c to a given value in Creator from the Home activity. The chosen activity will then use Item Creator .

Home Activity:

    int c;

    public void setC(int c) {
        this.c = c;
    }

    public void one(View view) {
        setC(1);
        Intent intent = new Intent(this, One.class);
        startActivity(intent);
    }

    public void two(View view) {
        setC(2);
        Intent intent = new Intent(this, Two.class);
        startActivity(intent);
    }

    public void three(View view) {
        setC(3);
        Intent intent = new Intent(this, Three.class);
        startActivity(intent);
    }

    public void four(View view) {
        setC(4);
        Intent intent = new Intent(this, Four.class);
        startActivity(intent);
    }

    public int getC() {
        return c;
    }

}

Class I am trying to pass c to:

public class Creator{
    HomeActivity home = new HomeScreenActivity();
    private int c = home.getC();

If I manually change c 's value...

int c = 3;

... the class I want to receive it gets it fine. The issue seems to be getting the buttons to setC().

Thank you for any advice!

Answer 1

1. As far as your original question, I'd suggest using intents :

   What's the best way to share data between activities?

2. cricket_007 is correct: use startActivity() , not "new HomeScreenActivity()":

   https://developer.android.com/training/basics/firstapp/starting-activity.html