How to pass an object from one activity to another on Android

Question

I am trying to work on sending an object of my customer class from one Activity and display it in another Activity.

The code for t

Answer 1

I made a singleton helper class that holds temporary objects.

public class IntentHelper {

    private static IntentHelper _instance;
    private Hashtable _hash;

    private IntentHelper() {
        _hash = new Hashtable();
    }

    private static IntentHelper getInstance() {
        if(_instance==null) {
            _instance = new IntentHelper();
        }
        return _instance;
    }

    public static void addObjectForKey(Object object, String key) {
        getInstance()._hash.put(key, object);
    }

    public static Object getObjectForKey(String key) {
        IntentHelper helper = getInstance();
        Object data = helper._hash.get(key);
        helper._hash.remove(key);
        helper = null;
        return data;
    }
}

Instead of putting your objects within Intent, use IntentHelper:

IntentHelper.addObjectForKey(obj, "key");

Inside your new Activity, you can get the object:

Object obj = (Object) IntentHelper.getObjectForKey("key");

Bear in mind that once loaded, the object is removed to avoid unnecessary references.