Finding some playlist information from a Website

Question

I am trying to implement a radio app for the following website: http://www.c895.org/mp3/

The website uses the SGPlayer to display the artist, and song names. I am able to retrieve that information, but I am unable to find where I can access the previously played tracks.

I've gone through with Google Developer tools in Chrome to try and find API links, or JSON data, but I was unable to find where that playlist information was held.

Should I keep looking for the data, or instead implement in my Android Application a way to feed in the data based on what is being displayed on the website?

I thought about using AsyncTasks to efficiently load the data through the backend.

Any ideas, thoughts, and opinions are of great help!

Answer 1

Your playlists are available there: https://www.c895.org/playlist/

I think the parsing of the page is better than using private APIs. For this, you can use JSOUP.

Example for this site:

String url = "https://www.c895.org/playlist/";
Document document = Jsoup.connect(url).get();

Element playlist = document.select("#playlist").first();

List<TrackInfo> tracks = new ArrayList<>();

for (Element track : playlist.children()) {
    long time = Long.parseLong(track.dataset().get("ts"));
    String title = track.select(".title").first().text();
    String artist = track.select(".artist").first().text();

    // `time * 1000` because `java.util.Date` requires milliseconds
    // but `time` (`data-ts`) is a count of seconds
    tracks.add(new TrackInfo(new Date(time * 1000), title, artist));
}

// example output:
// TrackInfo{date=Sun Mar 10 22:06:58 MSK 2019, title='Grapevine', artist='Tiësto'}
System.out.println(tracks.get(0));

Where TrackInfo is:

class TrackInfo {
    private Date date;
    private String title, artist;

    public TrackInfo(Date date, String title, String artist) {
        this.date = date;
        this.title = title;
        this.artist = artist;
    }

    @Override
    public String toString() {
        return "TrackInfo{" +
                "date=" + date +
                ", title='" + title + '\'' +
                ", artist='" + artist + '\'' +
                '}';
    }

    public Date getDate() {
        return date;
    }

    public void setDate(Date date) {
        this.date = date;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public String getArtist() {
        return artist;
    }

    public void setArtist(String artist) {
        this.artist = artist;
    }
}

So you can find a song that played at any time interval.