How to check if an Application was launched for the very first time

Question

How do I make something happen just at the very first time the app is launched, and then make something else happen during all the other time?

I need to save an Int, but at the very first time it needs to be 0, after that I'll have to find it back on my savedInstanceState bundle.

Check this thread: http://stackoverflow.com/questions/7217578/check-if-application-is-on-its-first-run — Aditya Naique, Sep 15 '15 at 16:54

score 1 · Answer 1 · answered Sep 15 '15 at 16:58

To check the first run of application you can refer following code and implemt accordingly

public class MyActivity extends Activity {

SharedPreferences prefs = null;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    // Perhaps set content view here

    prefs = getSharedPreferences("com.mycompany.myAppName", MODE_PRIVATE);
}

@Override
protected void onResume() {
    super.onResume();

    if (prefs.getBoolean("firstrun", true)) {
        // Do first run stuff here then set 'firstrun' as false
        // using the following line to edit/commit prefs
        prefs.edit().putBoolean("firstrun", false).commit();
    }
}

}

score 0 · Accepted Answer · answered Sep 15 '15 at 16:50

You can simply save a value in your SharedPreferences like below,

@Override
public void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);
    SharedPreferences mDefaultPreferences = PreferenceManager.getDefaultSharedPreferences(this);
    if (mDefaultPreferences.getBoolean("first_launch", true))
    {
       mDefaultPreferences.edit().putBoolean("first_launch", false).commit();
       //Put the code here of your first launch
    }
    else
    {
       //Not the first launch

    }

}

How to check if an Application was launched for the very first time

2 Answers2