Returns true if the key has a corresponding value, false otherwise.
For secure storage, iOptions and aOptions allow more control on the data access policy.
Returns a Map<String,dynamic> with all the entries of the storage.
For secure storage, iOptions and aOptions allow more control on the data access policy.
Read the value corresponding to the key.
Returns null for non existing values.
For secure storage, iOptions and aOptions allow more control on the data access policy.
Write the value for the corresponding key.
Overwrites it if it already exists.
For secure storage, iOptions and aOptions allow more control on the data access policy.