Created
December 16, 2014 18:25
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Parsing list of objects in JSON
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| public class ProductsActivity extends Activity { | |
| // ... | |
| // onCreate(), etc. | |
| // ... | |
| /** | |
| * Assuming a JSON feed similar to: | |
| * { | |
| * "products": [ | |
| * { id: 1001, name: "Guitar", price: 299.95 }, | |
| * { id: 1002, name: "Drums", price: 199.99 }, | |
| * { id: 1003, name: "Keyboard", price: 249.95 }, | |
| * ..... | |
| * ] | |
| * } | |
| */ | |
| private List<Products> parse(JSONObject json) throws JSONException { | |
| ArrayList<Product> records = new ArrayList<>(); | |
| JSONArray jsonProducts = json.getJSONArray("products"); | |
| for(int i =0; i < jsonImages.length(); i++) { | |
| JSONObject jsonProduct = jsonImages.getJSONObject(i); | |
| long id = jsonProduct.getLong("id"); | |
| String name = jsonImage.getString("title"); | |
| double price = jsonImage.getDouble("price"); | |
| Product product = new Product(id, name, price) | |
| records.add(product) | |
| } | |
| return records; | |
| } | |
| private class Product { | |
| private long mId; | |
| private String mName; | |
| private double mPrice; | |
| public Product(long id, String name, double price) { | |
| mId = id; | |
| mName = name; | |
| mPrice = price; | |
| } | |
| } | |
| private class ProductsAdapter extends ArrayAdapter<Product> { | |
| // ... | |
| @Override | |
| public View getView(int position, View convertView, ViewGroup parent) { | |
| if(convertView == null) { | |
| convertView = LayoutInflater.from(getContext()).inflate(R.layout.product_list_item, parent, false); | |
| } | |
| // NOTE: You would normally use the ViewHolder pattern here | |
| TextView nameLabel = (TextView) convertView.findViewById(R.id.text1); | |
| TextView priceLabel = (TextView) convertView.findViewById(R.id.text2); | |
| Product prouct = getItem(position); | |
| nameLabel.setText(product.getName()); | |
| priceLabel.setText(String.valueOf(product.getPrice())); | |
| return convertView; | |
| } | |
| } | |
| } |
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