How to Pass Arraylist<Customeobject> from One Activity to Another

How to pass ArrayList CustomeObject from one activity to another?

You can pass an ArrayList<E> the same way, if the E type is Serializable.

You would call the putExtra (String name, Serializable value) of Intent to store, and getSerializableExtra (String name) for retrieval.

Example:

ArrayList<String> myList = new ArrayList<String>();
intent.putExtra("mylist", myList);

In the other Activity:

ArrayList<String> myList = (ArrayList<String>) getIntent().getSerializableExtra("mylist");

Passing arraylist of custom object to another activity

You can't have DoctorObject#writeToParcel() empty, that is what actually copies the object data.

@Override
public void writeToParcel(Parcel dest, int flags) {
    // the order you write to the Parcel has to be the same order you read from the Parcel
    dest.writeInt(DocPic);
    dest.writeString(Docname);
    dest.writeString(Docspecialty);
    dest.writeString(DocLocation);
}

And to read back your data in the other activity, use getParcelableArrayListExtra

ArrayList<DoctorObject> list = b.getParcelableArrayListExtra("NAME");

Passing ArrayList CustomObject Between Activities

This code

Bundle informacion= new Bundle();
informacion.putParcelableArrayList("eventos", ArrayList<Eventos> eventos);
intent.putExtras(informacion);

Should be

Bundle informacion = new Bundle();
ArrayList<Eventos> mas = new ArrayList<Eventos>();
informacion.putSerializable("eventos", mas);
intent.putExtras(informacion);

and Make sure your Eventos structure like a serializable object

private class Eventos implements Serializable {

}

Reading Values

ArrayList<Eventos> madd=getIntent().getSerializableExtra(key);

How to pass ArrayList Custom_Object from one activity to another in Android?

I can give a suggestion. I do this in my project.

1.Implement a singleton class as the bridge to pass object. (Hopefully you know what's singleton, I you don't, add comment to tell me.

class BridgeClass {
    private BridgeClass() {}

    static BridgeClass obj = nil;
    public BridgeClass instance() {
         if (obj == nil) obj = new BridgeClass();
         return obj;
    }

    public ArrayList<CUSTOM_OBJECT> cache;
 }

2.In the from activity,

BridgeClass.instance().cache = Cus_Obje_arraylist;

3.Then in the to activity, you can get it from the bridge class.

ArrayList<CUSTOM_OBJECT> Cus_Obje_arraylist = BridgeClass.instance().cache;

How to pass custom object arraylist from activity to fragment with instance

Can you try ?

public static final NewCustomer newInstance(ArrayList<customers> mArrayList) {

        NewCustomer f = new NewCustomer();
        Bundle bdl = new Bundle(1);
        this.data = mArrayList; // assign its Value
        bdl.putParcelableArrayList(data, mArrayList);
        f.setArguments(bdl);
        return f;
    }

this.data = mArrayList will assign value to the current member variable of fragment. Now it can we be accessed in current fragment.

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