setKV method
sets a key/value pair in the preferences
Implementation
void setKV(String key, dynamic value) async {
SharedPreferences sharedPreferences = await getSharedPreferencesInstance();
if (value is bool) {
sharedPreferences.setBool(key, value);
} else if (value is String) {
sharedPreferences.setString(key, value);
} else if (value is int) {
sharedPreferences.setInt(key, value);
} else if (value is double) {
sharedPreferences.setDouble(key, value);
} else if (value is List<String>) {
sharedPreferences.setStringList(key, value);
}
}