How to set object fields from a HashMap directly in android

Question

I want to assign all vales from hashMap to myObject:

Map <String, Object> hashMap;

UserdefinedClass myObject; 

Is there any library or direct approach available?

Answer 1

Step 1: Add values to Object(Entity class). Step 2: Add Object to Hashmap as a value wrt Key. Step 3: Get the Object from HasMap and use iterator to iterate the values.

Iterator iterator = meMap.keySet().iterator();
while(iterator.hasNext()) {
String key=(String)iterator.next();
String value=(String)meMap.get(key);
}

Fell free to ask for any query.

Answer 2

You can loop over the hash map and then do whatever you want...

Iterator<Entry<String,Object>> iterator = hashMap.entrySet().iterator();

        while(iterator.hasNext()){

            set = iterator.next();
            Object val = set.getValue();

        }

Answer 3

Let'assume this your Hashmap

Map <String, Object> hashMap = new HashMap<String,Object>();

And this is your class object where you want to assign the values from hashmap.

List<UserdefinedClass> myObject = new ArrayList<UserdefinedClass>();

Now, you need to iterate through the hashmap and get the value, type cast it and store it in myObject list.

 Iterator it = hashMap.entrySet().iterator();
 while (it.hasNext()) {
        Map.Entry pair = (Map.Entry)it.next();
        myObject.add((UserdefinedClass)pair.getValue());
    } 

Answer 4

Have a look at Convert a Map to a POJO

Jackson can be used in android project for sure. BeanUtils are told to be much faster, but I have no experience with it on Android. High chances are that it can be used as well.