phonegap返回键等设置

 
 <pre><script type= 
 "text/javascript" 
 charset= 
 "utf-8" 
 > 

 
      
 document.addEventListener( 
 "deviceready" 
 , onDeviceReady,  
 false 
 ); 

 
      
 // PhoneGap加载完毕 

 
 function 
 onDeviceReady() {

 
          
 //按钮事件 

 
          
 checkConnection(); 

 
          
 document.addEventListener( 
 "backbutton" 
 , eventBackButton,  
 false 
 );  
 //返回键 

 
          
 document.addEventListener( 
 "menubutton" 
 , eventMenuButton,  
 false 
 );  
 //菜单键 

 
          
 document.addEventListener( 
 "searchbutton" 
 , eventSearchButton,  
 false 
 );  
 //搜索键 

}

 
 function 
 onConfirm(button) {

 
          
 if 
 (button ==  
 '1' 
 ) { 

 
              
 navigator.app.exitApp(); 

 
          
 }  
 else 
 { 

}

}

 
      
 //返回键 

 
 function 
 eventBackButton() {

 
          
 navigator.notification.confirm( 
 '确定退出cfxxi？' 
 ,  
 // 显示信息 

 
 onConfirm,  
 // 按下按钮后触发的回调函数，返回按下按钮的索引

 
          
 '退出应用' 
 ,  
 // 标题 

 
 '确定,取消' 
 // 按钮标签

);

}

 
      
 //菜单键 

 
 function 
 eventMenuButton() {

 
          
 //alert('点击了 菜单 按钮!'); 

}

 
      
 //搜索键 

 
 function 
 eventSearchButton() {

 
          
 //window.plugins.ToastPlugin.show_short('点击了 搜索 按钮!'); 

}

 
 function 
 checkConnection() {

 
 var 
 networkState = navigator.network.connection.type;

 
 var 
 states = {};

 
          
 states[Connection.UNKNOWN]  =  
 'Unknown connection' 
 ;  

 
          
 states[Connection.ETHERNET] =  
 'Ethernet connection' 
 ;  

 
          
 states[Connection.WIFI]     =  
 'WiFi connection' 
 ;  

 
          
 states[Connection.CELL_2G]  =  
 'Cell 2G connection' 
 ;  

 
          
 states[Connection.CELL_3G]  =  
 'Cell 3G connection' 
 ;  

 
          
 states[Connection.CELL_4G]  =  
 'Cell 4G connection' 
 ;  

 
          
 states[Connection.NONE]     =  
 'No network connection' 
 ;  

 
          
 //alert(states[networkState]); 

 
          
 if 
 (states[networkState]== 
 'No network connection' 
 || 
 typeof 
 states[networkState] ==  
 "undefined" 
 ) 

{

 
              
 Ext.Msg.alert( 
 '警告' 
 ,  
 '应用需要连接网络获得数据，请打开网络.' 
 ,  
 function 
 (){ 

 
                  
 navigator.device.exitApp(); 

});

}

};

 
 </script></pre> 