volumedownbutton

This is an event that fires when the user presses the volume down button.

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

Details

If you need to override the default volume down behaviour you can register an event listener for the 'volumedownbutton' event.

Typically, you will want to attach an event listener with document.addEventListener once you receive the PhoneGap 'deviceready' event.

Supported Platforms

  • BlackBerry WebWorks (OS 5.0 and higher)

Quick Example

document.addEventListener("volumedownbutton", onVolumeDownKeyDown, false);

function onVolumeDownKeyDown() {
    // Handle the volume down button
}

Full Example

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
                      "http://www.w3.org/TR/html4/strict.dtd">
<html>
  <head>
    <title>PhoneGap Volume Down Button Example</title>

    <script type="text/javascript" charset="utf-8" src="cordova-1.5.0.js"></script>
    <script type="text/javascript" charset="utf-8">

    // Call onDeviceReady when PhoneGap is loaded.
    //
    // At this point, the document has loaded but cordova-1.5.0.js has not.
    // When PhoneGap is loaded and talking with the native device,
    // it will call the event `deviceready`.
    //
    function onLoad() {
        document.addEventListener("deviceready", onDeviceReady, false);
    }

    // PhoneGap is loaded and it is now safe to make calls PhoneGap methods
    //
    function onDeviceReady() {
        // Register the event listener
        document.addEventListener("volumedownbutton", onVolumeDownKeyDown, false);
    }

    // Handle the volume down button
    //
    function onVolumeDownKeyDown() {
    }

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