Join the social network of Tech Nerds, increase skill rank, get work, manage projects...
 
  • Save ArrayList of Object into Shared Preferences in Android

    • 0
    • 4
    • 1
    • 2
    • 0
    • 0
    • 0
    • 0
    • 19.9k
    Comment on it

    Sometime we need to save ArrayList of Objects into Shared preferences so that we can use that data in multiple Activities when required. We can do that easily as below:

    Suppose we have model Users as below:

    public class Users
    {
        private int id;
        private String name;
        private String address;
    
        public int getId() {
            return id;
        }
        public void setId(int id) {
            this.id = id;
        }
        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;
        }
    }

    And we want to save the ArrayList of users in SharedPreferences.

    To save ArrayList of Users in SharedPreferences use the following code:

    // Create List of users that you want to save
    ArrayList userList   = new ArrayList();
    userList.add(new Users());
    userList.add(new Users());
    
    SharedPreferences prefs = getSharedPreferences("User", Context.MODE_PRIVATE);
    //save the user list to preference
    Editor editor = prefs.edit();
    try {
    editor.putString("UserList", ObjectSerializer.serialize(userList));
    } catch (IOException e) {
    e.printStackTrace();
    }
    editor.commit();

    To retrieve the list of users from preferences use the following code:

    ArrayList userList   = new ArrayList();
    // Load user List from preferences
    SharedPreferences prefs = getSharedPreferences("User", Context.MODE_PRIVATE);
    try {
              userList = (ArrayList) ObjectSerializer.deserialize(prefs.getString("UserList", ObjectSerializer.serialize(new ArrayList())));
      } catch (IOException e) {
          e.printStackTrace();
      }

    You can get ObjectSerializer class from the following link
    github.com

    Hope this will help you :)

 0 Comment(s)

Sign In
                           OR                           
                           OR                           
Register

Sign up using

                           OR                           
Forgot Password
Fill out the form below and instructions to reset your password will be emailed to you:
Reset Password
Fill out the form below and reset your password: