This is an event that fires when the user presses the volume up button.
document.addEventListener("volumeupbutton", yourCallbackFunction, false);
If you need to override the default volume up behaviour you can register an event listener for the ‘volumeupbutton’ event.
Typically, you will want to attach an event listener with document.addEventListener
once you receive the PhoneGap ‘deviceready’ event.
document.addEventListener("volumeupbutton", onVolumeUpKeyDown, false); function onVolumeUpKeyDown() { // Handle the volume up button }
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <title>PhoneGap Volume Up Button Example</title> <script type="text/javascript" charset="utf-8" src="phonegap.js"></script> <script type="text/javascript" charset="utf-8"> // Call onDeviceReady when PhoneGap is loaded. // // At this point, the document has loaded but phonegap.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("volumeupbutton", onVolumeUpKeyDown, false); } // Handle the volume up button // function onVolumeUpKeyDown() { } </script> </head> <body onload="onLoad()"> </body> </html>