How to show datas with array adapter

Question

I would like to show data from an API in a ListView. I don't know why but it seems to display my model path in the list. Here is the code:

Model:

public class Categories {
    private String name;

    public Categories(String name) {
        this.name = name;
        this.description = description;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}

Adapter:

public class CategoriesAdapter extends ArrayAdapter<Categories> {

    private final List<Categories> list;
    private final Activity context;

    public CategoriesAdapter(Activity context, List<Categories> list) {
        super(context, android.R.layout.simple_list_item_activated_1, list);
        this.context = context;
        this.list = list;
    }
}

Main Activity request

private void makeJsonArrayRequest(String api_url) {
        showpDialog();

        JsonArrayRequest req = new JsonArrayRequest(api_url,
                new Response.Listener<JSONArray>() {
                    @Override
                    public void onResponse(JSONArray response) {
                        try {
                            for (int i = 0; i < response.length(); i++) {
                                JSONObject cat_obj = (JSONObject) response.get(i);
                                list.add(new Categories(cat_obj.getString("title")));
                            }
                        } catch (JSONException e) {
                            e.printStackTrace();
                            Toast.makeText(getApplicationContext(),
                                    "Error: " + e.getMessage(),
                                    Toast.LENGTH_LONG).show();
                        }
                        hidepDialog();
                    }
                }, new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                Toast.makeText(getApplicationContext(),
                        error.getMessage(), Toast.LENGTH_SHORT).show();
                hidepDialog();
            }
        });
        // Volley Request Queue
        AppController.getInstance().addToRequestQueue(req);
}

The result of this code is for each data: "com.xxx.xxx.Models.Categories@52b3adec" etc...

Ravi K Thapliyal · Accepted Answer · 2015-08-15 14:11:52Z

1

You need to override your Categories#toString() too. What you're currently seeing in your list comes from the default Object#toString() implementation.

public class Categories {

    private String name;

    public Categories(String name) {
        this.name = name;
        this.description = description;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String toString() {
        return name;
    }
}

The above will now display the category names in your ListView.

answered Aug 15, 2015 at 14:11

Ravi K Thapliyal

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