如何在Phonegap在线系统中使用jQuery Mobile在Android中处理物理后退按钮?我想显示确认退出应用程序(是-否)。我试了很多方法,但都没用。
试试这个:
document.addEventListener("deviceready", onDeviceReady, false);
function onDeviceReady() {
document.addEventListener("backbutton", onBackKeyDown, false); //Listen to the User clicking on the back button
}
function onBackKeyDown(e) {
e.preventDefault();
navigator.notification.confirm("Are you sure you want to exit ?", onConfirm, "Confirmation", "Yes,No");
// Prompt the user with the choice
}
function onConfirm(button) {
if(button==2){//If User selected No, then we just do nothing
return;
}else{
navigator.app.exitApp();// Otherwise we quit the app.
}
}
第一次单击设置exitApp=true时,第二次单击后退按钮将退出应用程序。但是设置一个Interval将exitApp的状态更改为false。因此,当在1秒内单击两次后退按钮时,将退出应用程序。
document.addEventListener('deviceready', function() {
var exitApp = false, intval = setInterval(function (){exitApp = false;}, 1000);
document.addEventListener("backbutton", function (e){
e.preventDefault();
if (exitApp) {
clearInterval(intval)
(navigator.app && navigator.app.exitApp()) || (device && device.exitApp())
}
else {
exitApp = true
history.back(1);
}
}, false);
}, false);
//设备就绪功能
document.addEventListener('deviceready', function() {
document.addEventListener("backbutton", ShowExitDialog, false);
}, false);
//按下后退按钮时的对话框
function ShowExitDialog() {
navigator.notification.confirm(
("Do you want to Exit?"), // message
alertexit, // callback
'My APp', // title
'YES,NO' // buttonName
);
}
//呼叫退出功能
function alertexit(button){
if(button=="1" || button==1)
{
device.exitApp();
}
}
不确定phonegap是否发生了变化,但Suhas和geet的解决方案几乎对我有效。(但肯定给了我使其工作所需的东西,谢谢!)后退按钮基本上坏了。
以下是使它对我有效的调整:
一旦你的应用程序加载,请执行以下操作:
document.addEventListener("backbutton", onBackKeyDown, false);//hijack the backbutton
function onBackKeyDown(e){
var page = $.mobile.activePage.attr('id');
xStat.rec("back button clicked from page:" + page);
if (page == 'menuPage'){//are you on the 'root page' from which phonegap will exit?
e.preventDefault();
$.mobile.changePage('#aboutToExitAppPage');
} else {
window.history.back();//restore normal back button functionality
}
}
//somewhere else in your code for the "aboutToExit app" page
$('#aboutToExitAppPage').on('pageinit', function(){
$(this).find('#exitApp').on('click', function(){
navigator.app.exitApp();//quit the app.
});
});
和HTML
<div data-role="page" id="aboutToExitAppPage">
<div data-role="header" id="" data-position="inline" data-backbtn="true" >
<h1 class=>About to exit app</h1>
</div>
<div data-role="content" style="width:100%; height:100%; padding:0;">
<ul id="" data-role="listview" data-inset="true" data-theme="c" data-dividertheme="b" data-role="fieldContain">
<input id="exitApp" class="" type="button" value="Exit" data-theme="">
<a href="#menuPage" data-role='button'>Main Menu</a>
</ul>
</div>
</div>
如果用户单击"是",则退出应用程序。首先通过运行cordova plugin add cordova-plugin-dialogs
安装对话框插件
document.addEventListener("deviceready", onDeviceReady, false);
function onDeviceReady() {
document.addEventListener("backbutton", onBackKeyDown, false); //Listen to the User clicking on the back button
}
function onBackKeyDown(e) {
e.preventDefault();
navigator.notification.confirm("Are you sure you want to exit ?", onConfirm, "Confirmation", "Yes,No");
// Prompt the user with the choice
}
function onConfirm(button) {
if(button==1){//If User selected Yes, then exit app
navigator.app.exitApp();
} else {
return;
}
}
试试这个:
// When Device ready
document.addEventListener('deviceready', function() {
document.addEventListener("clickBackbutton", ExitDialogPrompt, false);
}, false);
function ExitDialogPrompt() {
navigator.notification.confirm(
("Do you want to Exit?"), // message
prompt, // callback
'Your title', // title
'YES,NO' // button Name
);
}
function alertexit(button){
if (button=="0" || button==1) {
navigator.app.exitApp();
}
}
这对我有效。
<script type="text/javascript" src="cordova.js"></script>
<script type="text/javascript" src="js/index.js"></script>
使用此
<script type="text/javascript">
document.addEventListener("deviceready", onDeviceReady, false);
function onDeviceReady(){
document.addEventListener("backbutton", function(e) {
e.preventDefault();
if(confirm("Exit App?")) {
navigator.app.exitApp();
}
}, false);
}
</script>
或
<script type="text/javascript">
document.addEventListener("deviceready", onDeviceReady, false);
function onDeviceReady(){
document.addEventListener("backbutton", function(e) {
e.preventDefault();
press = press + 1;
if(press == 1) {
alert('Press again to exit');
}
if(press == 2) {
navigator.app.exitApp();
}
}, false);
}
</script>