LocalStorageInterface class abstract

Wraps NSUserDefaults (on iOS and macOS), SharedPreferences (on Android), LocalStorage (on Web) and native preference file (on Windows and Linux), providing a persistent store for simple data.

Data is persisted to disk asynchronously.

Constructors

LocalStorageInterface()

Properties

hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

clear() → Future<bool>
Completes with true once the user preferences for the app has been cleared.
containsKey(String key) → bool
Returns true if persistent storage the contains the given key.
get(String key) → dynamic
Reads a value of any type from persistent storage.
getBool(String key) → bool?
Reads a value from persistent storage, throwing an exception if it's not a bool.
getDouble(String key) → double?
Reads a value from persistent storage, throwing an exception if it's not a double.
getInt(String key) → int?
Reads a value from persistent storage, throwing an exception if it's not an int.
getKeys() → Set<String>
Returns all keys in the persistent storage.
getString(String key) → String?
Reads a value from persistent storage, throwing an exception if it's not a String.
getStringList(String key) → List<String>?
Reads a set of string values from persistent storage, throwing an exception if it's not a string set.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
reload() → Future<void>
Fetches the latest values from the host platform.
remove(String key) → Future<bool>
Removes an entry from persistent storage.
setBool(String key, bool value) → Future<bool>
Saves a boolean value to persistent storage in the background.
setDouble(String key, double value) → Future<bool>
Saves a double value to persistent storage in the background.
setInt(String key, int value) → Future<bool>
Saves an integer value to persistent storage in the background.
setString(String key, String value) → Future<bool>
Saves a string value to persistent storage in the background.
setStringList(String key, List<String> value) → Future<bool>
Saves a list of strings value to persistent storage in the background.
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited