How do you save/store objects in SharedPreferences on Android?

Question

I need to get user objects in many places, which contain many fields. After login, I want to save/store these user objects. How can we implement this kind of scenario?

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Answer 1

If you want to store the whole Object that you get in response, It can achieve by doing something like,

First Create a method that converts your JSON into a string in your util class as below.

 public static  T fromJson(String jsonString, Class theClass) {
    return new Gson().fromJson(jsonString, theClass);
}

Then In Shared Preferences Class Do something like,

 public void storeLoginResponse(yourResponseClass objName) {

    String loginJSON = UtilClass.toJson(customer);
    if (!TextUtils.isEmpty(customerJSON)) {
        editor.putString(AppConst.PREF_CUSTOMER, customerJSON);
        editor.commit();
    }
}

and then create a method for getPreferences

public Customer getCustomerDetails() {
    String customerDetail = pref.getString(AppConst.PREF_CUSTOMER, null);
    if (!TextUtils.isEmpty(customerDetail)) {
        return GSONConverter.fromJson(customerDetail, Customer.class);
    } else {
        return new Customer();
    }
}

Then Just call the First method when you get response and second when you need to get data from share preferences like

String token = SharedPrefHelper.get().getCustomerDetails().getAccessToken();

that's all.

Hope it will help you.

Happy Coding();