RxPersistDouble constructor

RxPersistDouble(
  1. String key, [
  2. double initial = 0.0
])

Rx persistent class, with the persistent key of _persistKey.

Default value to initial if the persistent storage returns null.

Implementation

RxPersistDouble(String key, [double initial = 0.0])
    : assert(_isPersistenceInit,
          'Persistent storage did not initialize, please use initGlobalPersist() in main()'),
      super(key, initial) {
  _value = _sharedPreferences.getDouble(_persistKey) ?? initial;
}