CODEWITHSUNDEEP
javaandroidparcelableparcel
Devansh Kumar
Devansh Kumar

Reputation: 1562

How to make class with multiple Integers and Strings Parcelable?

I have following Class and i want to make it Parcelable Problem is that when i read isHidden and Counter variable from int[] arraySongIntegers by method in.createIntArray() , i am getting an empty array of size 0 and BTW all the String variables are being read correctly . Please tell me how do i write all variables to Parcel and read it back properly.

public class Song implements Parcelable{
    public static long firstSongId;
    private long id;
    private String title ,mimeType, artist , dateAdded ,album;
    private int isHidden ,counter;    // 0 is false , 1 is true

 public Song(Parcel in){
    readFromParcel(in);
 }

@Override
public void writeToParcel(Parcel dest, int flags) {
    int[] arraySongIntegers = new int[2];
    arraySongIntegers[0] = isHidden;
    arraySongIntegers[1] = counter;
    dest.writeIntArray(arraySongIntegers);


    dest.writeLong(id);

    List<String> l  = new ArrayList<>();
    l.add(title);
    l.add(artist);
    l.add(album);
    l.add(dateAdded);
    dest.writeStringList(l);

}


public void readFromParcel(Parcel in){

    id = in.readLong();

    int[] arraySongIntegers = in.createIntArray();
    isHidden = arraySongIntegers[0];
    counter = arraySongIntegers[1];

    ArrayList<String> list = in.createStringArrayList();
    title = list.get(0);
    artist = list.get(1);
    album = list.get(2);
    dateAdded = list.get(3);
}

public static final Parcelable.Creator CREATOR =
        new Parcelable.Creator() {
            public  Song createFromParcel(Parcel in) {
                return new Song(in);
            }

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

}

Thanks in advance.

Upvotes: 0

Views: 1054

Answers (3)

Ruslan altukhov
Ruslan altukhov

Reputation: 102

You can use Bundle to save key/value pairs into the parcel. For this purpose use the Parcel#writeBundle method. As in this example:

public void writeToParcel(Parcel parcel, int i) {
    Bundle data = new Bundle();
    data.putInt("id",id);
    data.putInt("year",year);
    parcel.writeBundle(data);
}

Upvotes: 0

Hay Zohar
Hay Zohar

Reputation: 238

Just use this: http://www.parcelabler.com

Paste the class name + variables to the left textarea, click build and it will produce the right code for you.

For example if I have a class called myClass with 2 strings and 1 integer I would put this code to the textures:

public class myClass
{
    private String s1;
    private String s2;
    private int n1;
}

Upvotes: 1

Gabe Sechan
Gabe Sechan

Reputation: 93668

In addition to my comment (there's no reason to make it an array)- you need to read everything in the order you write it. By reading the id first everything gets screwed up.

Upvotes: 2

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