Run certain operations only when the app is first installed

Question

Let us presume that we have a function defined this way:

public class MyClass {
    public static void RunFirstTime() {
        //...
    }
}

The very first time I install the app, I want to run RunFirstTime() but then any other time I run the app, that function should not run.

Is there a built-in way to do this?

See this as well: http://stackoverflow.com/a/35062744/1860982 — Tosin Onikute, Oct 22 '16 at 20:36

zon7 · Accepted Answer · 2016-10-22T21:05:56.783

4

Just use SharedPreferences and store a boolean variable when you are done with first run.

To be more clear, the code should be something like this:

public static void RunFirstTime() {
    SharedPreferences prefs = getPreferences(MODE_PRIVATE);
    boolean firstRun = sPref.getBoolean("firstRun", true);
    if(firstRun){
        //Do something here
        ....
        //Save firstRun = false in order to not repeat next time 
        Editor prefEdit = sPref.edit();
        prefEdit.putBoolean("firstRun", false);
        prefEdit.commit();
    }
}

edited Oct 22 '16 at 21:05

answered Oct 22 '16 at 20:33

zon7

529
3
12

Why on earth didn't I think of this -- of course! Thanks. Can accept in 12 – KaliMa Oct 22 '16 at 20:33

score 0 · Answer 2 · answered Oct 22 '16 at 20:40

Try code like this:

public boolean isFirstRun() {
    SharedPreferences sPref;
    sPref = getPreferences(MODE_PRIVATE);
    boolean isFirstRun = sPref.getBoolean("FirstRun", true);
    Editor ed = sPref.edit();
    ed.putBoolean("FirstRun", false);
    ed.commit();
    return isFirstRun;
  }

Run certain operations only when the app is first installed

2 Answers2