한국에서 진행중인 Udacity Mini Codelab 의 예제 코드입니다.

CourseListRequestTask & Parsing JSON using Gson

    static class CourseListRequestTask extends AsyncTask<Void, Void, String> {

        private static final String TAG = "CourseListRequestTask";

        @Override
        protected String doInBackground(Void... params) {

            try {
                URL url = new URL("https://www.udacity.com/public-api/v0/courses");
                HttpURLConnection connection = (HttpURLConnection) url.openConnection();
                connection.connect();
                InputStream stream = connection.getInputStream();
                InputStreamReader reader = new InputStreamReader(stream);
                Gson gson = new Gson();
                Courses courses = gson.fromJson(reader, Courses.class);
                Log.v(TAG, "The length of course list: " + courses.courses.size());
                Log.v(TAG, "The title of the first course:" + courses.courses.get(0).title);
                Log.v(TAG, "The teaser video url of the first course:"
                        + courses.courses.get(0).teaser_video.youtube_url);
                reader.close();
                stream.close();
            } catch (MalformedURLException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }


            return null;

        }
    }

Courses class

public class Courses {

    public ArrayList<Course> courses;

    public static class TeaserVideo {

        public String youtube_url;

        @Override
        public String toString() {
            return youtube_url;
        }
    }

    public static class Course {

        public String key;
        public String title;
        public String subtitle;
        public String summary;
        public String image;
        public String homepage;
        public TeaserVideo teaser_video;

        @Override
        public String toString() {
            return String.format("[%s] %s", key, title);
        }
    }
}

pass a course information through bundle

    @Override
    public void onItemSelected(Courses.Course course) {

        Bundle arguments = new Bundle();
        arguments.putString(String.valueOf(R.id.course_detail_title), course.title);
        arguments.putString(String.valueOf(R.id.course_detail_subtitle), course.subtitle);
        arguments.putString(String.valueOf(R.id.course_detail_summary), course.summary);
        arguments.putString(String.valueOf(R.id.course_detail_image), course.image);
        arguments.putString(String.valueOf(R.id.course_detail_teaser_video), course.teaser_video.youtube_url);

        if (mTwoPane) {
            // In two-pane mode, show the detail view in this activity by
            // adding or replacing the detail fragment using a
            // fragment transaction.
            CourseDetailFragment fragment = new CourseDetailFragment();
            fragment.setArguments(arguments);
            getSupportFragmentManager().beginTransaction()
                    .replace(R.id.course_detail_container, fragment)
                    .commit();

        } else {
            // In single-pane mode, simply start the detail activity
            // for the selected item ID.
            Intent detailIntent = new Intent(this, CourseDetailActivity.class);
            detailIntent.putExtras(arguments);
            startActivity(detailIntent);
        }
    }

Using Glide to load images

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {

        View view;
        if (convertView == null) {
            view = LayoutInflater.from(getContext()).inflate(
                    R.layout.course_list_item, parent, false);
        } else {
            view = convertView;
        }

        Courses.Course course = getItem(position);
        ImageView iv = (ImageView) view.findViewById(R.id.course_image);
        Glide.with(getContext())
                .fromString()
                .load(course.image)
                .fitCenter()
                .error(R.drawable.ic_launcher)
                .into(iv);

        TextView titleView = (TextView) view.findViewById(R.id.course_title);
        TextView subtitleView = (TextView) view.findViewById(R.id.course_subtitle);

        titleView.setText(course.title);
        subtitleView.setText(course.subtitle);

        return view;
    }

Cool

Cool :D