Bindable must be on a member in an Observable class.报错解决

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Bindable must be on a member in an Observable class.报错解决

在使用databinding时报错，实体类必须继承BaseObservable,我的实体如下：

public class Food extends BaseObservable {    private String img;    private String description;    private String keywords;    public Food(String img, String description, String keywords) {        this.img = img;        this.description = description;        this.keywords = keywords;    }    @BindingAdapter("bind:img")    public static void getImage(ImageView view, String url){        Picasso.with(view.getContext()).load(url).into(view);    }    @Bindable    public String getImg() {        return img;    }    public void setImg(String img) {        this.img = img;    }    @Bindable    public String getDescription() {        return description;    }    public void setDescription(String description) {        this.description = description;    }    @Bindable    public String getKeywords() {        return keywords;    }    public void setKeywords(String keywords) {        this.keywords = keywords;    }}

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