Question

我正在开发一个Android聊天应用程序，我是一个web服务，它操纵一个sql server数据库和移动应用程序分离，在移动应用程序中，我的片段（主页，编辑个人资料），注销），在编辑配置文件片段中我希望edittext预先填充来自数据库的帐户所有者的信息，所以我将app_login从应用程序发送到webservice，webservice返回一个用户对象，这样我就可以他预先填充edittext的信息，所以这里是webservice的代码：

public synchronized void modifierProfil(String login) {
        try {
            stmt = con.prepareStatement("Select * from Utilisateurs where login = '" + login + "';");
            ResultSet rs = stmt.executeQuery();
            if (rs.next()) {
                Utilisateur user = new Utilisateur();
                user.setLogin(rs.getString("login"));
                user.setPassword(rs.getString("password"));
                user.setEmail(rs.getString("email"));
                user.setDateNaissance(rs.getDate("dateNaissance"));
                user.setNomPersonne(rs.getString("nomPersonne"));
                user.setPrenomPersonne(rs.getString("prenomPersonne"));
                user.setNumTelephone(rs.getInt("numTelephone"));
                user.setPhotoProfil(rs.getString("photoProfil"));
                user.setSexe(rs.getString("sexe"));
                env.setObjet(user);
                reponse = "ok";
            }
        } catch (Exception ex) {
            reponse = "erreur";
        } finally {
            try {
                env.setAction(reponse);
                TCPConnection.send(env, acceptedSocket);
                acceptedSocket.close();
            } catch (IOException ex1) {
            }
        }
    }

以及配置文件片段代码：

public static class ProfilFrag extends Fragment implements OnClickListener {

    ImageView photoProfil;
    EditText username, email, password, nomPrenom;
    String UserName, Pwd, Email;
    Button submit, changerPhoto;

    ModifierProgress connection ;

    private DatagramPacket sendP;
    private DatagramPacket receiveP;
    private DatagramSocket socket;
    private int serverPort;
    private String send;
    public static String serverIP;
    private byte data2[];
    private SharedPreferences settings;

    String rdata;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState); 
        connection = new ModifierProgress();
        connection.execute();
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        username = (EditText) getView().findViewById(R.id.etLogin);
        email = (EditText) getView().findViewById(R.id.edEmail);
        password = (EditText) getView().findViewById(R.id.edPassword);
        nomPrenom = (EditText) getView().findViewById(R.id.edNomPrenom);
        submit = (Button) getView().findViewById(R.id.bSubmit);
        photoProfil = (ImageView) getView().findViewById(R.id.largeThumbnailView);
        changerPhoto = (Button) getView().findViewById(R.id.btnChanger);

        submit.setOnClickListener(this);
        changerPhoto.setOnClickListener(this);

        data2 = new byte[100];
        serverPort = 6500;

        settings = PreferenceManager
                .getDefaultSharedPreferences(Home.current);

        serverIP = settings.getString("serverIP", Connection.ipServer);
        Log.i("Login", serverIP);
        }

    private class ModifierProgress extends AsyncTask<Void, String, Void> {
        @Override
        protected Void doInBackground(Void... params) {
            try {
                ***String un*** = username.getText().toString();
                Envoyable env = new Envoyable(un, "modifierProfil");
                Socket sock = TCPConnection.send(env);
                Log.i("modifierProfil", "modification Profil");
                env = (Envoyable) TCPConnection.Receive(sock);
                String rep = env.getAction();
                Log.i("modifierProfil", "received msg from server: " + rep);
                publishProgress("modification");
                if (rep.equalsIgnoreCase("ok")){
                    Utilisateur m = (Utilisateur) env.getObjet();
                    Utils.Helper.saveUser(settings, "m", m);
                    getActivity().finish();
                    UrlImageViewHelper.setUrlDrawable(photoProfil, m.getPhotoProfil());
                    username.setText(m.getLogin());
                    password.setText(m.getPassword());
                    email.setText(m.getEmail());
                }
                else if (rep.equalsIgnoreCase("erreur")){
                    publishProgress("err");
                    Toast.makeText(getActivity().getApplicationContext(), "Une erreur s'est produite", Toast.LENGTH_LONG).show();
                }
            } catch (IOException e) {
                e.printStackTrace();
            } catch (ClassNotFoundException e) {
                e.printStackTrace();
            }
            return null;
        }
    }

属性＆＃34; un＆＃34;获取始终为空值，即使直接在其上放置值，也不会预编译edittext。那么问题出在哪里？

Answer 1

您正在致电

connection.execute（）;

在OnCreate方法中

不要打电话给他们。在找到所有edittext和按钮的ID后调用它。

使用数据库中的信息预填充edittext

1 个答案: