Android-Write-Read-JSON-Basic

JsonWriter and JsonReader , No Library

JsonWriter

try{
    JsonWriter jsonWriter = new JsonWriter(
      new OutputStreamWriter(openFileOutput("data.json" , MODE_PRIVATE)));
    try{
        jsonWriter.setIndent("  ");

        jsonWriter.beginObject();
        jsonWriter.name("name");
        jsonWriter.value("Kocthaphan Muangsan");
        jsonWriter.name("email");
        jsonWriter.value("kotchaphan.m@kkumail.com");
        jsonWriter.endObject();
    }finally {
        jsonWriter.close();
    }
}catch (IOException ex){
    ex.printStackTrace();
}

JsonReader

try{
     JsonReader jsonReader = new JsonReader(new InputStreamReader((openFileInput("data.json"))));
      try{
          jsonReader.beginObject();

          while (jsonReader.hasNext()){
              String name = jsonReader.nextName();
              if("name".equals(name)){
                  txtName.setText(jsonReader.nextString());
              }else if("email".equals(name)){
                  txtValue.setText(jsonReader.nextString());
               }else{
                  //Unkhonw attribute
                  jsonReader.skipValue();
               }
          }
          jsonReader.endObject();
      }finally {
          jsonReader.close();
      }
}catch (IOException e){
     e.printStackTrace();
}