skydoves

@PreferenceEntity(name = "UserProfile")
public class Profile {
    protected final boolean login = false;
    @KeyName(name = "nickname") protected final String userNickName = null;
    @KeyName(name = "visits") protected final int visitCount = 1;

    @KeyName(name = "userPet")
    @TypeConverter(converter = PetConverter.class)
    protected Pet userPetInfo;

skydoves

Preference_UserProfile userProfile = Preference_UserProfile.getInstance(this);
userProfile.putNickname("my nickname"); // puts a SharedPreference in NickName key.
userProfile.getNickname(); // gets a SharedPreference value in NickName key.
userProfile.containsNickname(); // checks nickname key value is exist in SharedPreference.
userProfile.removeNickname(); // removes nickname key's value in SharedPreference.
userProfile.nicknameKeyName(); // returns nickname fields's key name.
userProfile.getEntityName(); // returns UserProfile entity's name;
userProfile.getkeyNameList(); // returns UserProfile entity's KeyName list of fields.

skydoves

Preference_UserProfile.getInstance(this).putNickname("my nickname");

skydoves

public class PrivateInfoConverter extends PreferenceTypeConverter<PrivateInfo> {

    @Override
    public String convertObject(PrivateInfo privateInfo) {
        return privateInfo.getName() + "," + privateInfo.getAge();
    }

    @Override
    public PrivateInfo convertType(String string) {
        if(string == null) return new PrivateInfo("null",0);

skydoves

@KeyName(name = "userPet")
@TypeConverter(converter = PetConverter.class)
protected Pet userPetInfo;

skydoves

public class PetConverter extends PreferenceTypeConverter<Pet> {

    private final Gson gson;

    /**
     * default constructor will be called by PreferenceRoom
     */
    public PetConverter() {
        this.gson = new Gson();
    }

skydoves

@PreferenceFunction(keyname = "nickname")
public String putUserNickFunction(String nickname) {
    return "Hello, " + nickname;
}

@PreferenceFunction(keyname = "nickname")
public String getUserNickFunction(String nickname) {
    return nickname + "!!!";
}

skydoves

@PreferenceFunction(keyname = "visits")
    public int putVisitCountFunction(int count) {
        return ++count;
    }

skydoves

component.UserProfile().putVisits(component.UserProfile().getVisits());

skydoves

@PreferenceFunction(keyname = "uuid")
public String putUuidFunction(String uuid) {
   return SecurityUtils.encrypt(uuid);
}

@PreferenceFunction(keyname = "uuid")
public String getUuidFunction(String uuid) {
    return SecurityUtils.decrypt(uuid);
}