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Codename One JSON Library

A library to read and write JSON in Codename One

Synopsis

This library is a port of this J2ME JSON library so that it can be used in Codename One. Only minor changes have been made in order to improve performance.

Codename One already includes a JSON parser, so why package up another library? One reason is for pure variety. The interface of this library is different than the built-in CN1 parser and this might be preferrable to some. Another reason is that it is easy to use this library outside of Codename One. If I'm writing code that I want to reuse in CN1 and other Java environments, I might choose to use this library for portability.

License

Apache License 2.0

Requirements

  1. Codename One 1.0 or higher

Installation

  1. Download the CN1JSON.cn1lib file and copy it into your Codename One Application's "lib" directory.
  2. Right click on your application's icon in the Netbeans project explorer, and select "Refresh Libs"

Usage Examples


        JSONObject index = new JSONObject(myJSONString);
        tour.setTourId(index.getInt("tour_id"));
        tour.setName(index.getString("tour_name"));
        
        JSONArray dests = index.getJSONArray("destinations");
        Map<String,SoundFile> audioFileIndex = new HashMap<String,SoundFile>();
        for ( int i=0; i<dests.length(); i++){
            JSONObject dest = dests.getJSONObject(i);
            PointOfInterest poi = new PointOfInterest();
            poi.setId(dest.getInt("tour_destination_id"));
            poi.setName(dest.getString("destination_name"));
            poi.setDescription(dest.getString("destination_description"));
            
            SoundFile sf = new SoundFile();
            sf.setStorageKey("poi:"+poi.getId());
            sf.setMimetype(dest.getString("audio_file_mimetype"));
            poi.setSoundFile(sf);
            audioFileIndex.put(dest.getString("audio_file"), sf);
            tour.addPointOfInterest(poi);
            
        }

You can find other usage examples on the J2ME-JSON site.

Credits

  1. Library ported packaged by Steve Hannah
  2. Original JTar Library by Greyson

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Library for reading and writing JSON in Codename One

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