外行问一个小白的问题:即时聊天工具里显示对方"正在输入”状态是怎么实现的? - V2EX
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feis

外行问一个小白的问题:即时聊天工具里显示对方"正在输入”状态是怎么实现的?

  •  
  •   feis Nov 30, 2011 6868 views
    This topic created in 5265 days ago, the information mentioned may be changed or developed.
    是感应键盘还是感应光标呢?
    11 replies    1970-01-01 08:00:00 +08:00
    chloerei
        1
    chloerei  
       Nov 30, 2011
    键盘输入触发一条“正在输入“的状态,发到对方客户端
    wang1986
        2
    wang1986  
       Nov 30, 2011
    意念外露了,被聊天工具捕捉到了。
    feis
        3
    feis  
    OP
       Nov 30, 2011
    如果给A发消息,B会看到“正在输入”的状态么?
    icyflash
        4
    icyflash  
       Nov 30, 2011
    显然不会啊。。
    goldenlove
        5
    goldenlove  
       Nov 30, 2011
    键盘光标不冲突啊。。 可以同时作为判断条件。。
    manhere
        6
    manhere  
       Nov 30, 2011
    输入框获得焦点+keydown
    yy77
        7
    yy77  
       Nov 30, 2011
    keydown时,判断输入框len>0就发送“正在输入”状态,不然就发送“”状态去聊天对方吧。
    sanp
        8
    sanp  
       Nov 30, 2011
    把签名改成 "正在输入" 即可...
    realfex
        9
    realfex  
       Nov 30, 2011
    如果人家愿意的话,对方已经输了多少字 都可以显示在你这边。。就像微博字数提示一样
    tuoxie007
        10
    tuoxie007  
       Nov 30, 2011
    Onfoucs= function() {
    focused = yes;
    Onkeydown= function() {
    typing = yes;
    }
    }
    Onblur= function() {
    Onkeydown= null;
    focused = no;
    typing = no;
    }
    icyflash
        11
    icyflash  
       Nov 30, 2011
    事实上腾讯QQ的老版本就有一个功能,对方打的字即时显示出来的
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