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I’m trying to send an object to a activity using parcelable, happens that the object is sent but the lists that are inside it arrive empty...
Class containing the lists: (I tried to solve the problem using Android Studio’s parceable generator, it generated this and the lines I commented, but it didn’t work, so I added what is commenting with #)
public class Recipes implements Parcelable {
public static final String RECIPES_URL = "https://d17h27t6h515a5.cloudfront.net/topher/2017/May/5907926b_baking/baking.json";
private int id;
private String name;
private int servings;
private String image;
private List<Ingredients> ingredientsList;
private List<Steps> stepsList;
public static final String PARCEABLE_KEY = "RECIPES_KEY";
protected Recipes(Parcel in) {
id = in.readInt();
name = in.readString();
servings = in.readInt();
image = in.readString();
ingredientsList = new ArrayList<>(); //#
in.readList(ingredientsList, List.class.getClassLoader()); //#
stepsList = new ArrayList<>(); //#
in.readList(stepsList, List.class.getClassLoader()); //#
/*ingredientsList = in.createTypedArrayList(Ingredients.CREATOR);
stepsList = in.createTypedArrayList(Steps.CREATOR);*/
}
public Recipes(){}
public static final Creator<Recipes> CREATOR = new Creator<Recipes>() {
@Override
public Recipes createFromParcel(Parcel in) {
return new Recipes(in);
}
@Override
public Recipes[] newArray(int size) {
return new Recipes[size];
}
};
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getServings() {
return servings;
}
public void setServings(int servings) {
this.servings = servings;
}
public String getImage() {
return image;
}
public void setImage(String image) {
this.image = image;
}
public List<Ingredients> getIngredientsList() {
return ingredientsList;
}
public void setIngredientsList(List<Ingredients> ingredientsList) {
this.ingredientsList = ingredientsList;
}
public List<Steps> getStepsList() {
return stepsList;
}
public void setStepsList(List<Steps> stepsList) {
this.stepsList = stepsList;
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeInt(id);
dest.writeString(name);
dest.writeInt(servings);
dest.writeString(image);
dest.writeTypedList(ingredientsList);
dest.writeTypedList(stepsList);
}
}
The list objects: (I implemented parcelables on them to try to solve the problem)
public class Ingredients extends Recipes implements Parcelable {
private int quantity;
private String measure;
private String ingredient;
protected Ingredients(Parcel in) {
super(in);
}
public Ingredients() {}
public int getQuantity() {
return quantity;
}
public void setQuantity(int quantity) {
this.quantity = quantity;
}
public String getMeasure() {
return measure;
}
public void setMeasure(String measure) {
this.measure = measure;
}
public String getIngredient() {
return ingredient;
}
public void setIngredient(String ingredient) {
this.ingredient = ingredient;
}
}
public class Steps extends Recipes implements Parcelable {
private int id;
private String shortDescription;
private String description;
private String videoUrl;
private String thumbnailUrl;
public Steps() {}
@Override
public int getId() {
return id;
}
@Override
public void setId(int id) {
this.id = id;
}
public String getShortDescription() {
return shortDescription;
}
public void setShortDescription(String shortDescription) {
this.shortDescription = shortDescription;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public String getVideoUrl() {
return videoUrl;
}
public void setVideoUrl(String videoUrl) {
this.videoUrl = videoUrl;
}
public String getThumbnailUrl() {
return thumbnailUrl;
}
public void setThumbnailUrl(String thumbnailUrl) {
this.thumbnailUrl = thumbnailUrl;
}
}
I can’t use serializable, has to be parcelable!
UPDATE: When debugging, I noticed that ingredientsList always comes with size 38, but all empty, while stepsList comes with size 0... No matter which item I select! (when clicking on an item of a recycleview, it is sent to another actvity the object of this item, which in this case is Recipes)