How to pass a boolean between intents

Question

I need to pass a boolean value to and intent and back again when the back button is pressed. The goal is to set the boolean and use a conditional to prevent multiple launche

Answer 1

Set intent extra(with putExtra):

Intent intent = new Intent(this, NextActivity.class);
intent.putExtra("yourBoolName", true);

Retrieve intent extra:

@Override
protected void onCreate(Bundle savedInstanceState) {
    Boolean yourBool = getIntent().getExtras().getBoolean("yourBoolName");
}