Counting how many times my Android app has been opened

Question

I am developing an android app and I want to know how many times it has been opened. Is there a way to do this?

Answer 1

In your Application or Activity's onCreate() method, increment a counter stored in persistent storage such as SharedPreferences.

Answer 2

As I have said in another answer, I think the following is the best solution:

private static boolean valueOfLaunchCountModified = false;

@Override
protected void onCreate(Bundle savedInstanceState) {

    if(!valueOfCountModified){
        preferences = getPreferences(MODE_PRIVATE);
        launchCount= preferences.getInt("launchCount", 0);
        if(preferences.edit().putInt("launchCount", ++launchCount).commit()){
            valueOfCountModified = true;
        }
    }

    if(launchCount == 5 && valueOfCountModified){
        //Do whatever you want
    }
}

If we remember the definition of a static variable, we will discover that is perfect for us:

They are associated with the class, rather than with any object. Every instance of the class shares a class variable.

When onPause method or an orientation change is executed the value of valueOfLaunchCountModified doesn't change; however, if the app process is destroyed, the value of valueOfLaunchCountModified changes to false.

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