EncryptedSharedPreferences encryptedSharedPreferences = EncryptedSharedPreferences();

encryptedSharedPreferences.setString('sample', 'Hello, World!').then((bool success) {
    if (success) {
        print('success');
    } else {
        print('fail');
    }
});

encryptedSharedPreferences.getString('sample').then((String value) {
    print(value); /// Prints Hello, World!
});

encryptedSharedPreferences.remove('sample').then((bool success) {
    if (success) {
        print('success');
    } else {
        print('fail');
    }
});

/// Clears all values, including those you saved using regular Shared Preferences.
encryptedSharedPreferences.clear().then((bool success) {
    if (success) {
        print('success');
    } else {
        print('fail');
    }
});

encryptedSharedPreferences.reload();

/// You can pass a custom SharedPreferences instance (e.g. A newer version of SharedPreferences)
final prefs = await SharedPreferences.getInstance();
EncryptedSharedPreferences encryptedSharedPreferences = EncryptedSharedPreferences(prefs: prefs);

// You can access the internal SharedPreferences instance to invoke methods not exposed by regular EncryptedSharedPreferences
SharedPreferences instance = await encryptedSharedPreferences.getInstance();
int counter = 1;

/// Access SharedPreferences' setInt method
await instance.setInt('counter', counter);

EncryptedSharedPreferences encryptedSharedPreferences = EncryptedSharedPreferences(mode: AESMode.cbc);