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    How can update UI from other thread

    phuochauphuochau Member
    edited June 2012 in General questions
    Hi all,
    I'm facing with the problem. I have a simple TCP server (C#).
    And i create new tcp socket at client, but when i get a new message (the message is a string) from server, i cannot update UI. Please help me
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    Comments

    • techdojotechdojo Guru
      Can you explain your problem in a little more detail?
      What do you mean "I cannot update UI" ?

      Likes: phuochau

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    • phuochauphuochau Member
      edited June 2012
      @techdojo
      What I'm expecting is when client receives a string from server, client will set text for text field
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    • ar2rsawseenar2rsawseen Maintainer
      so there are two things to be considered

      Firstly, when you create a client, set it's timeout to 0, so it won't block UI
      client:settimeout(0)
      Secondly, listen in timer and not in loop, since times are like async calls (they are not async, but they act like ones), listening about 10 times a second should be enough.
      --running timer 10 times each second should be sufficient
local timer = Timer.new(100)
 
timer:addEventListener(Event.TIMER, function()
--do what you need to do here
end)
 
--start the timer
timer:start()
      If that didn't answer your question, try elaborate on it ;)

      Likes: phuochau

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    • phuochauphuochau Member
      @ar2rsawseen:
      Thanks, I will try it now :)
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    • phuochauphuochau Member
      edited June 2012
      @ar2rswascreen
      Working ;), thanks for your support. Code complete such as below. I use 2 timers to do that.
      local socket = require("socket")
local client = socket.connect("127.0.0.1", 1501)
local count = 0
client:settimeout(0)
 
local timer = Timer.new(100) 
timer:addEventListener(Event.TIMER, function()
	print(count)
end)
 
local timer2 = Timer.new(100) 
timer2:addEventListener(Event.TIMER, function()
	s, status, partial = client:receive()
	if partial~=nil then
		count = count + partial:len()
	end
end)
 
--start the timer
timer:start()
--start the timer
timer2:start()

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    • ar2rsawseenar2rsawseen Maintainer
      @phuochau, glad it helped ;)

      Likes: phuochau

      http://appcodingeasy.com/Gideros-Mobile
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