Question

    document.addEventListener("ondeviceready", function(){ alert("123");},true);
    document.addEventListener("backbutton", function(){ alert("123");},true);

//我也单独使用了功能但没有工作 //我正在使用正确的cordova库 //我把这段代码保存在外部js文件中，然后它也没有用。 //我还在将任何其他js文件包含到HTML中之前调用它 //同样的事情也发生在＆＃39; backbutton＆＃39;事件

  <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
        <meta name="format-detection" content="telephone=no" />
        <meta name="viewport" content="user-scalable=no, initial-scale=1, maximum-scale=1, minimum-scale=1, width=device-width, height=device-height, target-densitydpi=device-dpi" />
        <link rel="stylesheet" type="text/css" href="css/common.css" />
        <link rel="stylesheet" type="text/css" href="css/jquery.mobile-1.4.2.min.css.css" />
        <title>Since your car is manufactured before 2000</title>
         <script type="text/javascript" src="cordova-2.4.0.js"></script>
         <script type="text/javascript" src="js/jquery-1.9.1.min.js"></script>
        <script type="text/javascript" src="js/jquery.mobile-1.4.2.js"></script>
        <script type="text/javascript">
           document.addEventListener("backbutton", function(){
         alert("Back button pressed");
        },true);
    </script>
      </head>

    <body>

Answer 1

该事件称为 deviceready ，而不是 ondeviceready 。

此外，您需要在 deviceready -event触发之后注册 backbutton 事件，否则，它将无效。

来自Cordova文档的修改示例：

<!DOCTYPE html> <html> <head> <title>Device Ready Example</title> <script type="text/javascript" charset="utf-8" src="cordova.js"></script> <script type="text/javascript" charset="utf-8"> // Wait for device API libraries to load // function onLoad() { document.addEventListener("deviceready", onDeviceReady, false); } // device APIs are available // function onDeviceReady() { document.addEventListener("backbutton", onBackButton, false); } function onBackButton(){ // your code here } </script> </head> <body onload="onLoad()"> </body> </html>

ondeviceready和backbutton在phonegap android中不起作用？

1 个答案: