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How to store class object in android sharedPreference?

Asked 2013-01-24T12:15:29.477
8

I would like to store class object in android sharedpreference. I did some basic search on that and I got some answers like make it serializable object and store it but my need is so simple. I would like to store some user info like name, address, age and boolean value is active. I made one user class for that.

public class User {
    private String  name;
    private String address;
    private int     age;
    private boolean isActive;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getAddress() {
        return address;
    }

    public void setAddress(String address) {
        this.address = address;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public boolean isActive() {
        return isActive;
    }

    public void setActive(boolean isActive) {
        this.isActive = isActive;
    }
}

Thanks.

android sharedpreferences
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1 Answer

18

  1. Download gson-1.7.1.jar from this link: GsonLibJar

  2. Add this library to your android project and configure build path.

  3. Add the following class to your package.

    package com.abhan.objectinpreference;

import java.lang.reflect.Type;
import android.content.Context;
import android.content.SharedPreferences;
import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;

public class ComplexPreferences {
    private static ComplexPreferences       complexPreferences;
    private final Context                   context;
    private final SharedPreferences         preferences;
    private final SharedPreferences.Editor  editor;
    private static Gson                     GSON            = new Gson();
    Type                                    typeOfObject    = new TypeToken<Object>(){}
                                                                .getType();

private ComplexPreferences(Context context, String namePreferences, int mode) {
    this.context = context;
    if (namePreferences == null || namePreferences.equals("")) {
        namePreferences = "abhan";
    }
    preferences = context.getSharedPreferences(namePreferences, mode);
    editor = preferences.edit();
}

public static ComplexPreferences getComplexPreferences(Context context,
        String namePreferences, int mode) {
    if (complexPreferences == null) {
        complexPreferences = new ComplexPreferences(context,
                namePreferences, mode);
    }
    return complexPreferences;
}

public void putObject(String key, Object object) {
    if (object == null) {
        throw new IllegalArgumentException("Object is null");
    }
    if (key.equals("") || key == null) {
        throw new IllegalArgumentException("Key is empty or null");
    }
    editor.putString(key, GSON.toJson(object));
}

public void commit() {
    editor
answered 2013-01-24T12:31:06.893

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