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volumedownbutton
The event fires when the user presses the volume down button.
document.addEventListener("volumedownbutton", yourCallbackFunction, false);
Details
If you need to override the default volume down behavior you can
register an event listener for the volumedownbutton
event.
Applications typically should use document.addEventListener
to
attach an event listener once the [deviceready](events.deviceready.html)
event fires.
Supported Platforms
- BlackBerry 10
- Android
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>Volume Down 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("volumedownbutton", onVolumeDownKeyDown, false);
}
// Handle the volume down button
//
function onVolumeDownKeyDown() {
}
</script>
</head>
<body onload="onLoad()">
</body>
</html>