Android Parcelable — RetailerOrderActivity.java return null

Here is how you can pass an ArrayList as I tried it.

MyListClass.java – Custom class

public class MyListClass implements Parcelable{

    private int test;

    public MyListClass()
    {}

    public MyListClass(Parcel read){
        test = read.readInt();
    }

    public int getTest() {
        return test;
    }

    public void setTest(int test) {
        this.test = test;
    }

    public static final Parcelable.Creator<MyListClass> CREATOR = 
        new Parcelable.Creator<MyListClass>() {

            @Override
            public MyListClass createFromParcel(Parcel source) {
                return new MyListClass(source);
            }

            @Override
            public MyListClass[] newArray(int size) {
                return new MyListClass[size];
            }
        };

    @Override
    public int describeContents() {
        return 0;
    }

    @Override
    public void writeToParcel(Parcel arg0, int arg1) {
        arg0.writeInt(test);
    }
}

MyParcelable.java

public class MyParcelable implements Parcelable {

    private List<MyListClass> arrList = new ArrayList<MyListClass>();
    private int myInt = 0;
    private String str = null;

    public String getStr() {
        return str;
    }

    public void setStr(String str) {
        this.str = str;
    }

    public List<MyListClass> getArrList() {
        return arrList;
    }

    public void setArrList(List<MyListClass> arrList) {
        this.arrList = arrList;
    }

    public int getMyInt() {
        return myInt;
    }

    public void setMyInt(int myInt) {
        this.myInt = myInt;
    }

    MyParcelable() {
        // initialization
        arrList = new ArrayList<MyListClass>();
    }

    public MyParcelable(Parcel in) {
        myInt = in.readInt();
        str = in.readString();
        in.readTypedList(arrList, MyListClass.CREATOR);
    }

    @Override
    public int describeContents() {
        return 0;
    }

    @Override
    public void writeToParcel(Parcel outParcel, int flags) {
        outParcel.writeInt(myInt);
        outParcel.writeString(str);
        outParcel.writeTypedList(arrList);
    }

    public static final Parcelable.Creator<MyParcelable> CREATOR = new Parcelable.Creator<MyParcelable>() {

        @Override
        public MyParcelable createFromParcel(Parcel in) {
            return new MyParcelable(in);
        }

        @Override
        public MyParcelable[] newArray(int size) {
            return new MyParcelable[size];
        }
    };
}

MainAcitivty.java

@Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        arrList.add(new MyListClass());
        arrList.get(0).setTest(200);

        MyParcelable object = new MyParcelable();
        object.setMyInt(100);
        object.setArrList(arrList);

        Intent intent = new Intent(MainActivity.this,ReceiverParcel.class);
        intent.putExtra("parcel", object);
        startActivity(intent);
    }

ReceiverParcel.java

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        Bundle b = getIntent().getExtras();
        MyParcelable object = b.getParcelable("parcel");

        System.out.println(object.getArrList().get(0).getTest());
        System.out.println(object.getMyInt());
}