simple_storage_plugin

A plugin for storing data using shared preferences in Android. It is highly dependent on simple_signing_plugin. Stored data is encrypted using AES. In order for the package to function properly, it is required to protect a device with a screen lock.

Features

This plugin contains following methods:

  1. writeData - saves user's input and key into shared preferences. Authentication is required to perform this action.
  2. readData - reads data from shared preferences saved under input key. If no data under such key is present, an exception is thrown.
  3. deleteData - deletes data from shared preferences saved under input key.
  4. editData - edits data in shared preferences saved under input key. Authentication is required to perform this action.

Usage

//Writing data example
String _data = 'Data';
String _key = 'Key';
var result = await SimpleStoragePlugin.writeData(_key, _data); //returns true if everything goes fine. Can throw a SharedPreferencesException or DeviceNotSecuredException

//Reading data example
String _key = 'Key';
var result = await SimpleStoragePlugin.readData(_key); //returns data written under key if everything goes fine. Can throw a InvalidSignatureException, DeviceNotSecuredException or NoKeyInStorageException

//Deleting data example
String _key = 'Key';
var result = await SimpleStoragePlugin.deleteData(_key); //returns true if everything goes fine. Can throw a SharedPreferencesException or DeviceNotSecuredException

//Editing data example
String _data = 'Data';
String _key = 'Key';
var result = await SimpleStoragePlugin.editData(_key, _data); //returns true if everything goes fine. Can throw a SharedPreferencesException or DeviceNotSecuredException

Libraries

exceptions
simple_storage_plugin