本文介绍了如何检测用户触摸与PhoneGap的使用JS的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我使用的PhoneGap构建Android应用程序。

I am using phonegap to build android apps.

我想检测来自用户的触摸事件,所以我可以弹出一个警告。但是,如何从JavaScript调用的ontouch事件?

I would like to detect the touch event from a user so I can pop-up an alert. However, how do I call the ontouch event from javascript?

谢谢!

推荐答案

下面是一个例子,显示了 touchstart touchend 。它展示了两种不同的方式连接触摸事件:元素的属性或JavaScript的的addEventListener

Below is an example that shows touchstart and touchend. It demonstrates two different ways to attach touch events: element attributes or JavaScript's addEventListener.

由于它监听的触摸事件,该事件将不会在桌面浏览器触发(支持鼠标事件)。要测试页面,你可以打开一个Android或iOS的模拟器。

Since it is listening for touch events, the events will not fire on a desktop browser (which supports mouse events). To test the page, you can open it a Android or iOS simulator.

<!DOCTYPE html>
<html>
  <head>
    <meta name="viewport" content="width=device-width, initial-scale=1.0;" />
    <style type="text/css">
      a {
        color:black;
        display:block;
        margin:10px 0px;
      }
    </style>

    <script type="text/javascript">
      function onload() {
        document.getElementById('touchstart').addEventListener('touchstart', hello, false);
        document.getElementById('touchend').addEventListener('touchend', bye, false);
      }

      function hello() {
        alert('hello');
      }

      function bye() {
        alert('bye');
      }
    </script>

    <title>Touch Example</title>
  </head>
  <body onload="onload();">
    <h1>Touch</h1>
    <a href="#" ontouchstart="hello();return false;">Attribute: ontouchstart</a>
    <a href="#" ontouchend="bye();return false;">Attribute: ontouchend</a>
    <a href="#" id="touchstart">addEventListener: touchstart</a>
    <a href="#" id="touchend">addEventListener: touchend</a>
  </body>
</html>

这篇关于如何检测用户触摸与PhoneGap的使用JS的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

10-20 06:22