volumeupbutton

The event fires when the user presses the volume up button.

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

Details

If you need to override the default volume up behavior you can register an event listener for the volumeupbutton event.

Applications typically should use document.addEventListener to attach an event listener once the [deviceready](events.deviceready.html) event fires.

Supported Platforms

  • BlackBerry WebWorks 5.0+

Quick Example

document.addEventListener("volumeupbutton", onVolumeUpKeyDown, false);

function onVolumeUpKeyDown() {
    // Handle the volume up button
}

Full Example

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
                      "http://www.w3.org/TR/html4/strict.dtd">
<html>
  <head>
    <title>Volume Up 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("volumeupbutton", onVolumeUpKeyDown, false);
    }

    // Handle the volume up button
    //
    function onVolumeUpKeyDown() {
    }

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