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>