notified_preferences library

Classes

NotifiedPreferences: Provides easily creating listenable preferences with SharedPreferences.
NotifiedSettings: Provides Preferences for immediate usage, without having to create a new class.
PreferenceAdapter: Provides utility functions for interacting with SharedPreferences. Cannot be instantiated. Please use the static methods which are provided.
PreferenceNotifier<T>: Stores a Preference in SharedPreferences. When created, will read its own value from SharedPreferences. Notifies all its listeners whenever its value is changed. Changes are written into the corresponding SharedPreferences.
SharedPreferences: Wraps NSUserDefaults (on iOS) and SharedPreferences (on Android), providing a persistent store for simple data.

NullablePreferences on SharedPreferences: Adds convenience methods for saving values to SharedPreferences that might be null. If the value is null, the corresponding key is removed.

DecodeJsonPreference<T> = T Function(dynamic json): Used to instantiate a JSON object from a Preference string.
PreferenceReader<T> = T? Function(String key): Reads value from key.
PreferenceWriter<T> = Future<bool> Function(String key, T value): Writes value to key.
ReadPreference<T> = T? Function(SharedPreferences prefs, String key): Reads a Preference from SharedPreferences.
WritePreference<T> = void Function(SharedPreferences prefs, String key, T value): Writes a Preference to SharedPreferences.

PreferenceReadError<T>: An error that is thrown when PreferenceAdapter cannot find a matching Reader for the given Preference Type. Supported Preference types include: String, int, double, bool, List<String> and their nullable versions. If you encounter this, please provide your own Reader with the ReadPreference parameter.
PreferenceWriteError<T>: An error that is thrown when PreferenceAdapter cannot find a matching Writer for the given Preference Type. Supported Preference types include: String, int, double, bool, List<String> and their nullable versions. If you encounter this, please provide your own Writer with the WritePreference parameter.