Le gestionnaire Android bufferedreader.read() ferme l'application lorsqu'il reçoit des données.

Question

Bonjour, je suis nouveau dans la programmation Android et j'essaye de recevoir des données du client avec des sockets. Quand j'utilise .readline(), ma fenêtre de texte ne se met à jour que lorsque je ferme le programme client en python, alors j'utilise .read() et l'application se ferme.

voici le code :

        class Mythread implements Runnable{

    Handler h = new Handler();

    @Override
    public void run() {

        Socket s;
        ServerSocket ss;
        InputStreamReader ist;
        BufferedReader bufferedReader;
        try {
            ss = new ServerSocket(21600);
            s = ss.accept();
            ist = new InputStreamReader(s.getInputStream());
            bufferedReader = new BufferedReader(ist);
            while (true){

                final String message = bufferedReader.readLine();
                Log.d("message", "message: " + message);

                h.post(new Runnable() {
                    @Override
                    public void run() {
                        ballscollect.setText(message);

                    }
                });
            }
        }catch (IOException e)
        {
            e.printStackTrace();
        }

    }
}

Ceci est mon code client python où chaque fois que l'interrupteur est cliqué, il envoie une chaîne de sortie à l'application :

 import socket
from nanpy import (ArduinoApi, SerialManager)
import time
import thread

import Adafruit_CharLCD as LCD
import math

lcd_rs        = 26  
lcd_en        = 19
lcd_d4        = 13
lcd_d5        = 6
lcd_d6        = 5
lcd_d7        = 11
lcd_backlight = 4

lcd_columns = 16
lcd_rows    = 2

lcd = LCD.Adafruit_CharLCD(lcd_rs, lcd_en, lcd_d4, lcd_d5, lcd_d6, lcd_d7, lcd_columns, lcd_rows, lcd_backlight)

lcd.message ('Balls Collected')

ledpin = 13
buttonpin = 12
buttonpin1 = 2
buttonpin2 = 3
buttonstate1 = 1
buttonstate2 = 1
buttonstate3 = 1

connection = SerialManager()
a = ArduinoApi(connection = connection)

a.pinMode(ledpin, a.OUTPUT)
a.pinMode(buttonpin, a.INPUT)
a.pinMode(buttonpin1, a.INPUT)
a.pinMode(buttonpin2, a.INPUT)

host = '192.168.1.7'
port = 21600
sock = socket.socket()
sock.connect((host,port))

def count():
    add = 0
    while True:

        buttonstate1 = a.digitalRead(buttonpin)
        buttonstate2 = a.digitalRead(buttonpin1)
        buttonstate3 = a.digitalRead(buttonpin2)

        if buttonstate1:

            a.digitalWrite(ledpin, a.HIGH)

        else:
            a.digitalWrite(ledpin, a.LOW)
            add += 1
            s = str(add)
            lcd.message ('\n'+s)
            sock.send(s)              #this is the output string that is sent to the app
            print ('sent')
            time.sleep (.5)

        if buttonstate2:

            a.digitalWrite(ledpin, a.HIGH)

        else:
            a.digitalWrite(ledpin, a.LOW)
            add += 1
            s = str(add)
            sock.send(s)       #this is the output string that is sent to the app
            lcd.message ('\n'+s)
            print ('sent')
            time.sleep (.5)

        if buttonstate3:
            a.digitalWrite(ledpin, a.HIGH)

        else:
            a.digitalWrite(ledpin, a.LOW)
            add += 1
            s = str(add)
            lcd.message ('\n'+s)
            sock.send(s)   #this is the output string that is sent to the app
            print ('sent')
            time.sleep (.5)                                             

    sock.close()

thread.start_new_thread(count, ())

J'ai une erreur dans le logcat

01-30 22:39:23.437 21785-21802/com.example.mahilum.tbot D/message: message: null
01-30 22:39:23.437 21785-21802/com.example.mahilum.tbot D/message: message: null
01-30 22:39:23.437 21785-21802/com.example.mahilum.tbot D/message: message: null
01-30 22:39:23.438 21785-21802/com.example.mahilum.tbot D/message: message: null
01-30 22:39:23.438 21785-21802/com.example.mahilum.tbot D/message: message: null
01-30 22:39:23.438 21785-21802/com.example.mahilum.tbot D/message: message: null
01-30 22:39:23.438 21785-21802/com.example.mahilum.tbot D/message: message: null

Answer 1

sock.send(s) Changer pour sock.send(s + "\n")

Et rappelez-vous mon premier commentaire :

Well than the server will not have send a line. 
Only some characters. 
The server should send lines too. A line ends with a "\n" character.