AppPreferenceEnsuredExtension<T, AP extends AppPreference<T>> extension

Extension methods for AppPreference All methods here works on derived type of AppPreference

Example:

class MySecret extends AppPreference<String> {
  MySecret(SecureStorageAdapter adapter): super.direct(
    adapter: adapter,
    key: 'my_secret',
    defaultValue: 'i do not know',
  );
}

Future<MySecret> createMySecret(SecureStorageAdapter adapter) => MySecrete(adapter).ensuredCreation();

createMySecret returns Future<MySecrete> instead of Future<AppPreference<String>>

on

• AP

Methods

ensuredCreation() → Future<AP>

Wait until the preference is ready to use. Could be used as an async factory for AppPreference.

ensuredRead() → Future<T>

Read the value of the preference when it is ready.

ensuredWrite(T value) → Future<AP>

Ensure the value is really written to the storage.