안드로이드에서 로컬 JSON을 통한 로컬 이미지

drawable 에 이미지가 있다고 상상해 봅시다  폴더 :

drawable
    image_name_1
    image_name_2
    image_name_3
    image_name_4
    ...

이미지 이름을 json에 입력하십시오 :

[
    {
        "some_field_1": "some_value_1",
        "some_field_2": "some_value_2",
        "some_field_3": "some_value_3",
        ...
        "image_name": "image_name_1"
    },
    {
        "some_field_1": "some_value_1",
        "some_field_2": "some_value_2",
        "some_field_3": "some_value_3",
        ...
        "image_name": "image_name_2"
    },
    {
        "some_field_1": "some_value_1",
        "some_field_2": "some_value_2",
        "some_field_3": "some_value_3",
        ...
        "image_name": "image_name_3"
    },
    ...
]

JSON에서 이름을 얻고 drawab 리소스를로드합니다.

   JSONArray data; // your JSON
    Context context; // context
    Resources resources = context.getResources();
    for (int i = 0; i < data.length(); i++) {
        // getting some another JSON field
        // get image name from JSON
        String imageName = data.getJSONObject(i).getString("image_name");
        // get resource id by image name
        final int resourceId = resources.getIdentifier(imageName, "drawable", context.getPackageName());
        // get drawable by resource id
        Drawable drawable = resources.getDrawable(resourceId);
        // get bitmap by resource id
        Bitmap bitmap = BitmapFactory.decodeResource(context.getResources(), resourceId);
    }

업데이트

이미지 리소스 ID를 HashMap에 넣기

   ...
    List<HashMap<String,String>> aList = new ArrayList<HashMap<String,String>>();
    JSONArray data; // your JSON
    Context context; // context
    Resources resources = context.getResources();
    for (int i = 0; i < data.length(); i++) {
        HashMap<String, String> hm = new HashMap<String,String>();
        hm.put("txt", "Country : " + countries[i]);
        hm.put("cur","Currency : " + currency[i]);
        // get image name from JSON
        String imageName = data.getJSONObject(i).getString("image_name");
        // get resource id by image name
        final int resourceId = resources.getIdentifier(imageName, "drawable", context.getPackageName());
        hm.put("flag", Integer.toString(resourceId) );
        aList.add(hm);
    }

// 모델 클래스가 있다면이 코드가 도움이됩니다

try {
        JSONObject jsonObject = new JSONObject(loadJSONFromAsset());
        JSONArray array = jsonObject.getJSONArray("Details");
        Resources resources = this.getResources();
        for (int i=0;i<array.length();i++){
            // Parse the JSON
            JSONObject jo_inside = array.getJSONObject(i);
            String title = jo_inside.getString("title");
            String img = jo_inside.getString("img");
            // get resource id by image name
            final int resourceId = resources.getIdentifier(img, "drawable", this.getPackageName());
            //load Model Class
            Model_Home data = new Model_Home(title,resourceId);
            indexList.add(data);

        }
    }catch (JSONException e){
        e.printStackTrace();
    }