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title: backbutton

backbutton

在使用者按後退按鈕時，將觸發該事件。

document.addEventListener("backbutton", yourCallbackFunction, false);

詳細資訊

要重寫後退按鈕的預設行為，註冊為事件攔截器 backbutton 事件，通常通過調用 document.addEventListener 一旦您收到 [deviceready](events.deviceready.html) 事件。不再需要調用任何其他方法重寫的後退按鈕的行為。

支援的平臺

亞馬遜火 OS
Android 系統
黑莓 10
Windows Phone 7 和 8

快速的示例

document.addEventListener("backbutton", onBackKeyDown, false);

function onBackKeyDown() {
    // Handle the back button
}

完整的示例

<!DOCTYPE html>
<html>
  <head>
    <title>Back Button 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() {
        // Register the event listener
        document.addEventListener("backbutton", onBackKeyDown, false);
    }

    // Handle the back button
    //
    function onBackKeyDown() {
    }

    </script>
  </head>
  <body onload="onLoad()">
  </body>
</html>