error: Type 'int[]' of field is not supported | how to add integer list to Realm?

Question

I'm creating Realm Object with Realm Database. I want to declare List integer to my object. This is my class:

@PrimaryKey
private int id;
private String name;
private String image;
private String thumbnail;
private String message;
private int[] genre;
private int[] method;

When i compile it, i get error at

Error:(12, 8) error: Type 'int[]' of field 'genre' is not supported

What to do with this? I tried with List<Integer> but no luck.

Then i realized that Integer object doesn't extends RealmObject so I cannot use it.

Any idea will help. Thanks.

Answer 1

What to do with this? I tried with List but no luck. Then i realized that Integer object doesn't extends RealmObject so I cannot use it.

Well, you can use the RealmList for this purpose :

@PrimaryKey
private int id;
private String name;
private String image;
private String thumbnail;
private String message;
private RealmList<RealmInt> genre;
private RealmList<RealmInt> method;

RealmInt.java

public class RealmInt extends RealmObject {
    private int val;

    public RealmInt() {
    }

    public RealmInt(int val) {
        this.val = val;
    }

    // Getters and setters
}

And this is how you'd add elements to the RealmList:

RealmList<RealmInt> list = new RealmList<RealmInt>();
in.beginArray();
while (in.hasNext()) {
    list.add(new RealmInt(in.nextInt()));
}

And then you can call the setter of the main RealmObject class and pass the list.

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