Android土耳其语字符“UTF-8”

Question

我为charset使用“UTF-8”以包含土耳其字符。在消息传递部分可以显示土耳其字符，但是，在相同的系统中，用户简要部分不能正确编码土耳其字符。用户简介异步部分代码段：

public class ServerKullaniciDurum extends AsyncTask<String, Void, String> {
        String durum;
        String query, charset;

        public ServerKullaniciDurum(String durum) {
            this.durum = durum;
            charset = "UTF-8";
            String param1 = "id";
            String param2 = "status";
            try {
                query = String.format("param1=%s&param2=%s", URLEncoder.encode(param1, charset), URLEncoder.encode(param2, charset));
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        protected String doInBackground(String... params) {
            URLConnection connection = null;
            try {
                Log.i("tago" , "durum" + durum);
                Log.i("tago" , "durum encode " + URLEncoder.encode(durum,charset));
                connection = new URL("http://www.ceng.metu.edu.tr/~e1818871/shappy/my_status?id="
                        + params[0] + "&status=" + URLEncoder.encode(durum, charset)).openConnection();
            } catch (IOException e) {
                e.printStackTrace();
            }
            connection.setDoOutput(true);
            connection.setRequestProperty("Accept-Charset", charset);
            connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded;charset=" + charset);

            OutputStream output;
            try {
                output = new BufferedOutputStream(connection.getOutputStream());
                output.write(query.getBytes(charset));
                InputStream inputstream = connection.getInputStream();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return "calaba";
        }
    }

这是什么原因？我怎么能克服它？