Determine if Android app is being used for the first time

Question

I am currently developing an android app. I need to do something when the app is launched for the first time, i.e. the code only runs on the first time the program is launch

Answer 1

for kotlin

    fun checkFirstRun() {

    var prefs_name = "MyPrefsFile"
    var pref_version_code_key = "version_code"
    var doesnt_exist: Int = -1;

    // Get current version code
    var currentVersionCode = BuildConfig.VERSION_CODE

    // Get saved version code
    var prefs: SharedPreferences = getSharedPreferences(prefs_name, MODE_PRIVATE)
    var savedVersionCode: Int = prefs.getInt(pref_version_code_key, doesnt_exist)

    // Check for first run or upgrade
    if (currentVersionCode == savedVersionCode) {

        // This is just a normal run
        return;

    } else if (savedVersionCode == doesnt_exist) {

        // TODO This is a new install (or the user cleared the shared preferences)


    } else if (currentVersionCode > savedVersionCode) {

        // TODO This is an upgrade
    }

    // Update the shared preferences with the current version code
    prefs.edit().putInt(pref_version_code_key, currentVersionCode).apply();

}

Answer 2

Hi guys I am doing something like this. And its works for me

create a Boolean field in shared preference.Default value is true {isFirstTime:true} after first time set it to false. Nothing can be simple and relaiable than this in android system.

Answer 3

I solved to determine whether the application is your first time or not , depending on whether it is an update.

private int appGetFirstTimeRun() {
    //Check if App Start First Time
    SharedPreferences appPreferences = getSharedPreferences("MyAPP", 0);
    int appCurrentBuildVersion = BuildConfig.VERSION_CODE;
    int appLastBuildVersion = appPreferences.getInt("app_first_time", 0);

    //Log.d("appPreferences", "app_first_time = " + appLastBuildVersion);

    if (appLastBuildVersion == appCurrentBuildVersion ) {
        return 1; //ya has iniciado la appp alguna vez

    } else {
        appPreferences.edit().putInt("app_first_time",
                appCurrentBuildVersion).apply();
        if (appLastBuildVersion == 0) {
            return 0; //es la primera vez
        } else {
            return 2; //es una versión nueva
        }
    }
}

Compute results:

• 0: If this is the first time.
• 1: It has started ever.
• 2: It has started once, but not that version , ie it is an update.

Answer 4

My version for kotlin looks like the following:

PreferenceManager.getDefaultSharedPreferences(this).apply {
        // Check if we need to display our OnboardingSupportFragment
        if (!getBoolean("wasAppStartedPreviously", false)) {
            // The user hasn't seen the OnboardingSupportFragment yet, so show it
            startActivity(Intent(this@SplashScreenActivity, AppIntroActivity::class.java))
        } else {
            startActivity(Intent(this@SplashScreenActivity, MainActivity::class.java))
        }
    }