I'm trying to use firestore recycler adapter with a parcelable class, but it needs to have an empty constructor.
My solution now is to create a regular class with an empty constructor and right after fetching the data, I'll map the objects into a parcelable copy.
But is it possible to create a Parcelable Class with an empty constructor? In Android Studio when I do right click -> Generate -> I see no secondary constructor option so I guess it's not possible, right?
Yes, it is possible. The Parcelable object will be serialized and deserialized without any problem.
In Android Studio when I do right click -> Generate -> I see no secondary constructor option so I guess it's not possible, right?
No, the fact that it doesn't appear as suggestion in Android Studio code completion feature doesn't mean it is not possible.
Taking as a reference the Parcelable implementation from Android documentation. You should then need to add an empty constructor. Just write the code, don't use code generator.
public MyParcelable(){
}
The class then should look like this:
public class MyParcelable implements Parcelable {
private int mData;
public int describeContents() {
return 0;
}
public void writeToParcel(Parcel out, int flags) {
out.writeInt(mData);
}
public static final Parcelable.Creator<MyParcelable> CREATOR
= new Parcelable.Creator<MyParcelable>() {
public MyParcelable createFromParcel(Parcel in) {
return new MyParcelable(in);
}
public MyParcelable[] newArray(int size) {
return new MyParcelable[size];
}
};
private MyParcelable(Parcel in) {
mData = in.readInt();
}
public MyParcelable(){
}
}