L'envoi de clés a expiré

Question

Je reçois une erreur keydispatchingtimedout et n'arrive pas à trouver la raison. De l'aide? Comme vous pouvez le voir, j'ai créé une classe de serveur à laquelle mon android est supposé se connecter au démarrage, ce qui est le cas. Mais en essayant de récupérer des données, cela vient de ma base de données mysql, il se fige.

import java.io.DataInputStream; 
import java.io.FileInputStream; 
import java.io.IOException; 
import java.io.ObjectInputStream; 
import java.net.InetSocketAddress; 
import java.net.Socket; 
import java.util.ArrayList; 

import android.app.Activity; 
import android.os.Bundle; 
import android.os.Handler; 
import android.os.Message; 
import android.util.Log; 
import android.view.View; 
import android.widget.Button; 


public class TutorialActivity extends Activity { 

    private Socket socket; 
    private ObjectInputStream dos; 
    private DataInputStream dis; 


    public void connect(){ 
     socket = new Socket(); 
     InetSocketAddress ipPort = new InetSocketAddress("192.168.0.10",4444); 
     try{ 
      socket.connect(ipPort); 
      dis = new DataInputStream(socket.getInputStream()); 
      dos = new ObjectInputStream(socket.getInputStream()); 
     }catch(Exception e){ 
      Log.d("OUT_CON",e.toString()); 
     } 

     while (true) { 
      try { 
       String msg = dis.readUTF(); 
       if (msg.equals("Hej")) { 
        Thread.sleep(50); 
        receiveArrayList(); 
       } 

      } catch (Exception e) { 
      } 
     } 
    } 
    /** Called when the activity is first created. */ 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.main); 
     final Button sButton = (Button) findViewById(R.id.sbutton); 
     sButton.setOnClickListener(new View.OnClickListener(){ 
      @Override 
      public void onClick(View v){    
      connect(); 
      } 
     }); 
    } 

    public void receiveArrayList() { 
     try { 
      FileInputStream fis = new FileInputStream("randomList"); 
      dos = new ObjectInputStream(fis); 
      ArrayList a= (ArrayList) (dos.readObject()); 
      for(int i = 0; i < a.size(); i++){ 
       Log.d((String)a.get(i), null); 
      } 

      dis.close(); 
     } catch (ClassNotFoundException ex) { 
      System.out.println(ex); 
     } catch (IOException ex) { 
      System.out.println(ex); 
     } 
    } 
} 

import java.io.DataOutputStream; 
import java.io.FileOutputStream; 
import java.io.IOException; 
import java.io.ObjectOutputStream; 
import java.net.*; 
import java.sql.Connection; 
import java.sql.DriverManager; 
import java.sql.ResultSet; 
import java.sql.SQLException; 
import java.sql.Statement; 
import java.util.ArrayList; 
import java.util.logging.Level; 
import java.util.logging.Logger; 

public class Server implements Runnable { 

    private ServerSocket server; 
    private Socket socket; 
    private ObjectOutputStream oos = null; 

    public Server() { 
     try { 
      server = new ServerSocket(4444); 
      new Thread(this).start(); 
     } catch (Exception e) { 
      System.out.println(e); 
     } 
    } 

    public void run() { 
     System.out.println("Server running"); 
     while (true) { 
      try { 
       socket = server.accept(); 
       sayHi(); 
      } catch (Exception e) { 
      } 
     } 
    } 

    private void sayHi(){ 
     DataOutputStream dos; 
     try { 
      dos = new DataOutputStream(socket.getOutputStream()); 
      oos = new ObjectOutputStream(socket.getOutputStream()); 
      dos.writeUTF("Hej"); 
      sendNames(); 
     } catch (IOException ex) { 
      Logger.getLogger(Server.class.getName()).log(Level.SEVERE, null, ex); 
     } 
    } 

    public void sendNames() { 
     final ArrayList<String> drinkar = new ArrayList<String>(); 

     Connection con = null; 
     String url = "jdbc:mysql://localhost:3306/"; 
     String db = "drycker"; 
     String driver = "com.mysql.jdbc.Driver"; 
     String user = "root"; 
     String pass = ""; 

     try{ 
      Class.forName(driver).newInstance(); 
      con = DriverManager.getConnection(url+db, user, pass); 
      try{ 
       Statement st = (Statement) con.createStatement(); 
       ResultSet res = st.executeQuery("SELECT * FROM drinkar"); 
       while (res.next()) { 
        String s = res.getString("Namn"); 
        drinkar.add(s); 
       } 
       System.out.println(drinkar); 
       con.close(); 
      } 
      catch (SQLException s){ 
       System.out.println("SQL code does not execute."); 
      } 
     } 
     catch (Exception e){ 
      e.printStackTrace(); 
     }   
     ArrayList<String> a = new ArrayList<String>(); 
     a.add("Hejsan"); 
     a.add("Svejsan"); 

     try { 
      FileOutputStream fos = new FileOutputStream("randomList"); 
      oos = new ObjectOutputStream(fos); 
      oos.writeObject(drinkar); 
      oos.flush(); 
      oos.reset(); 
      oos.close(); 
      fos.close(); 
     } catch (Exception e) { 
     } 
    } 

    public static void main(String[] args) { 
     new Server(); 
    } 
} 

Answer 1

Votre appel à connect() en onClick() prend trop de temps. Vous devez faire la méthode connect() en dehors du thread principal. Vérifiez le Android developer guide sur la réactivité pour plus d'informations.