javascript Android/phonegap - 点击响应时间慢
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Android/ phonegap - Click response time slow
提问by Raj Labana
I am close to working out a solution courtesy of ghostCoder hinting at the idea of detecting the touch event rather than the click event. This below code is what I currently have, however something is still not quite right. It works on my homepage (very basic page), however with the actual game page it breaks:
我即将制定出由 ghostCoder 提供的解决方案，暗示检测触摸事件而不是点击事件的想法。下面的代码是我目前所拥有的，但是有些地方仍然不太正确。它适用于我的主页（非常基本的页面），但是在实际游戏页面上它会中断：
Here is my code: JAVASCRIPT:
这是我的代码：JAVASCRIPT：
var b=document.getElementById('STOP'),start=0;
//Check for touchstart
if('ontouchstart' in document.documentElement)
{
document.getElementById("notouchstart").style.display = "none";
}
//Add a listener that fires at the beginning of each interaction
[b].forEach(function(el){el.addEventListener('touchstart',interact);});
//Add the event handlers for each button
b.addEventListener('touchstart',highlight);
//Functions Store the time when the user initiated an action
function interact(e)
{
start = new Date();
}
//Highlight what the user selected and calculate how long it took the action to occur
function highlight(e)
{
e.preventDefault();
e.currentTarget.className="active";
if(start)
{
alert("test")
}
start = null;
}
BODY BUTTONS (firstly displays start button then when clicked displays stop button, then start again etc.)
BODY BUTTONS（首先显示开始按钮，然后单击时显示停止按钮，然后重新开始等）
<INPUT TYPE="button" style="background:url(images/Start_Btn.png); background-color:transparent; width:150px; height:186px; border:none; cursor:pointer;" id="START" onClick="startBTN();">
<INPUT TYPE="button" style="background:url(images/Stop_Btn.png); background-color:transparent; width:150px; height:186px; border:none; cursor:pointer;" id="STOP">
Thanks,
谢谢，
采纳答案by ghostCoder
Listen for ‘touchstart' instead of ‘click' :)
click is a bit delayed in touchscreens.
http://floatlearning.com/2011/03/developing-better-phonegap-apps/
聆听 'touchstart' 而不是 'click' :)
在触摸屏中点击有点延迟。
http://floatlearning.com/2011/03/developing-better-phonegap-apps/
回答by alexishacks
I have used touchendfor this. touchstartis being triggered even though the action is drag/scroll.
我已经用于touchend此。touchstart正在被触发，即使操作是drag/scroll。
回答by bernard
Don't use buttons. If you add the event to a div it's faster.
不要使用按钮。如果您将事件添加到 div，它会更快。
回答by Grit
I am working on a calculator and my first idea was to start with phonegap. Now I strongly recommend not to do that when button presses are time critical. Even with disabling all extra touch handlers and setting touchstart directly to the div: it's just too slow. (touchend won't do by the way, it's called when you release the finger from the button)
我正在研究一个计算器，我的第一个想法是从 phonegap 开始。现在我强烈建议不要在按钮按下时间紧迫的情况下这样做。即使禁用所有额外的触摸处理程序并将 touchstart 直接设置为 div：它也太慢了。（顺便说一下，touchend 不会做，当您从按钮上松开手指时会调用它）
回答by ira
In a Phonegap application the click event have a 300ms of delay time. Why don't you use Fastclick library for this pourpose??? I have tried it and works great!
在 Phonegap 应用程序中，单击事件有 300 毫秒的延迟时间。你为什么不使用 Fastclick 库来做这个倾诉？？？我试过了，效果很好！
https://github.com/ftlabs/fastclick
https://github.com/ftlabs/fastclick
Hope is helpful
希望有帮助
