Phonegap攔截菜單按鍵的事件menubutton,用於處理html5當中的菜單攔截事件

此事件是當用戶按下菜單是時候觸發

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

支持平台:

Amazon Fire OSAndroidBlackBerry 10

簡單例子:

document.addEventListener("menubutton", onMenuKeyDown, false);
function onMenuKeyDown() {   
 // Handle the back button

}

完整例子:

          
<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("menubutton", onMenuKeyDown, false);    
	}    
	// Handle the menu button    //    
	function onMenuKeyDown() { 
		//菜單按鈕的執行

	   }    
</script>  
  
  

deviceready只需要加載一次即可 它表示當phonegap的API加載完畢的時候調用