Method getInstallerName

app/src/main/java/eu/faircode/email/Helper.java:1517–1527

(Context context)

    }

    static String getInstallerName(Context context) {
        if ("?".equals(installerName))
            try {
                PackageManager pm = context.getPackageManager();
                installerName = pm.getInstallerPackageName(BuildConfig.APPLICATION_ID);
            } catch (Throwable ex) {
                Log.e(ex);
                installerName = null;
            }
        return installerName;
    }

    static long getInstallTime(Context context) {
        try {