Detect if new install or updated version (Android app)

Question

I have an app on the Play Store. I want to put a requirement that if users want to use a certain part of the app, they have to invite a friend before being able to do so. Bu

Answer 1

public static boolean isFirstInstall(Context context) {
    try {
        long firstInstallTime = context.getPackageManager().getPackageInfo(context.getPackageName(), 0).firstInstallTime;
        long lastUpdateTime = context.getPackageManager().getPackageInfo(context.getPackageName(), 0).lastUpdateTime;
        return firstInstallTime == lastUpdateTime;
    } catch (PackageManager.NameNotFoundException e) {
        e.printStackTrace();
        return true;
    }
}



public static boolean isInstallFromUpdate(Context context) {
    try {
        long firstInstallTime = context.getPackageManager().getPackageInfo(context.getPackageName(), 0).firstInstallTime;
        long lastUpdateTime = context.getPackageManager().getPackageInfo(context.getPackageName(), 0).lastUpdateTime;
        return firstInstallTime != lastUpdateTime;
    } catch (PackageManager.NameNotFoundException e) {
        e.printStackTrace();
        return false;
    }
}