How to write to arraylist of two or more custom objects in Parcelable?

Question

I have browsed the question on Stack and I found no question facing the particular problem. I have a class with two arraylist of custom objects. I am not sure how to implement writeToParcel for the parent class now. One option I found were readTypedList constructor, but I cant implement it twice. There is no readTypedListArray constructor that I can create an array ans send it.

Just a reminder the object are ArrayList and there are two such objects in the parent class. The github link for reference is here.

https://github.com/legalimpurity/PopularMoviesStage2/tree/master/app/src/main/java/popularmoviesstage1/legalimpurity/com/popularmoviesstage2/objects

Answer 1

You can add customArray using following way :

In MovieObject class:

  @Expose
  private ArrayList< ReviewObject > ReviewObjs = new ArrayList< ReviewObject >();
  private ArrayList< TrailerVideoObject > TrailerVideoObjs = new ArrayList< TrailerVideoObject >();

writeToParcel() :

 public void writeToParcel(Parcel dest, int flags) {
        dest.writeTypedList(ReviewObjs);
        dest.writeTypedList(TrailerVideoObjs);
    }

and readFromParcel() :

private void readFromParcel(Parcel in) {

    ReviewObjs = new ArrayList<ReviewObject>();
    in.readTypedList(ReviewObjs, ReviewObject.CREATOR);

    TrailerVideoObjs = new ArrayList<TrailerVideoObject>();
    in.readTypedList(TrailerVideoObjs, TrailerVideoObject.CREATOR);

  }

And add following lines in CustomClasses :

for ReviewObject :

public class ReviewObject implements Parcelable {
    public static final Creator<ReviewObject> CREATOR = new Creator<ReviewObject>() {
        public ReviewObject createFromParcel(Parcel in) {
            return new ReviewObject(in);
        }

        public ReviewObject[] newArray(int size) {
            return new ReviewObject[size];
        }

    };
// add other objects...
}

for TrailerVideoObject :

public class TrailerVideoObject implements Parcelable {
    public static final Creator<TrailerVideoObject> CREATOR = new Creator<TrailerVideoObject() {
        public TrailerVideoObject createFromParcel(Parcel in) {
            return new TrailerVideoObject(in);
        }

        public TrailerVideoObject[] newArray(int size) {
            return new TrailerVideoObject[size];
        }

    };
// add other objects...
}