How to pass ArrayList of Objects from one to another activity using Intent in android?

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Between Activity: Worked for me

ArrayList<Object> object = new ArrayList<Object>();
Intent intent = new Intent(Current.class, Transfer.class);
Bundle args = new Bundle();
args.putSerializable("ARRAYLIST",(Serializable)object);
intent.putExtra("BUNDLE",args);
startActivity(intent);

In the Transfer.class

Intent intent = getIntent();
Bundle args = intent.getBundleExtra("BUNDLE");
ArrayList<Object> object = (ArrayList<Object>) args.getSerializable("ARRAYLIST");

Hope this help’s someone.

Using Parcelable to pass data between Activity

This usually works when you have created DataModel

e.g. Suppose we have a json of type

{
    "bird": [{
        "id": 1,
        "name": "Chicken"
    }, {
        "id": 2,
        "name": "Eagle"
    }]
}

Here bird is a List and it contains two elements so

we will create the models using jsonschema2pojo

Now we have the model class Name BirdModel and Bird
BirdModel consist of List of Bird
and Bird contains name and id

Go to the bird class and add interface “implements Parcelable“

add implemets method in android studio by Alt+Enter

Note: A dialog box will appear saying Add implements method
press Enter

The add Parcelable implementation by pressing the Alt + Enter

Note: A dialog box will appear saying Add Parcelable implementation
and Enter again

Now to pass it to the intent.

List<Bird> birds = birdModel.getBird();
Intent intent = new Intent(Current.this, Transfer.class);
Bundle bundle = new Bundle();
bundle.putParcelableArrayList("Birds", birds);
intent.putExtras(bundle);
startActivity(intent);

And on Transfer Activity onCreate

List<Bird> challenge = this.getIntent().getExtras().getParcelableArrayList("Birds");

Thanks

If there is any problem please let me know.

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