我正在构建一个phonegap应用程序，并且在调试时收到以下错误消息。
未被捕获的TypeError：app.receivedEvent不是我的JS代码第18行上的function（…）**（我在下面指出）。
老实说，我已经阅读了许多有关设备就绪的指南，但我只是想不出如何在我的phonegap构建代码中正确使用它。
这是我的HTML：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="format-detection" content="telephone=no" />
<meta name="msapplication-tap-highlight" content="no" />
<!-- Include meta tag to ensure proper rendering and touch zooming -->
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" type="text/css" href="css/index.css" />
<!-- Include jQuery Mobile stylesheets -->
<link rel="stylesheet" href="css/jquery.mobile-1.4.5.min.css">
<link href='https://fonts.googleapis.com/css?family=Lobster|Anton|Patua+One' rel='stylesheet' type='text/css'>
<link rel="stylesheet" href="css/fact_page.css">
<title>One Direction Facts</title>
</head>
<body>
<div data-role="page" id="pageone">
<div data-role="header">
<h1>One Direction - Fact of the Day</h1>
</div>
<div id="deviceready" data-role="main" class="ui-content">
<h2 id="todayh2" class="invisible"> Today's One Direction Fact:</h2>
<div id="quotebox" class="PulseEffect icon">
<div id="ShineDiv" class="shine"></div>
<div class="facebox fade icon">
<div id="ShineDiv2" class=""></div>
</div>
<p class="hidden" id="qotd"> Welcome to<br><strong>One Direction Facts.</strong><br><br>You will get a random fact each day.</p>
</div>
<a id="nextQ" class="" data-role="button" data-ajax="false">View Fact</a>
<div class="XPmeter animateXP" >
<span id="bar" style="width: 20%"></span>
<div id="medaldiv">
<img id="medal" src="images/medal3.svg"><p id="lvl">1</p>
</div>
</div>
</div>
<div data-role="footer">
<h1>New Features Coming Soon!</h1>
</div>
</div>
<!-- --------------------JS------------------------ -->
<script src="./js/jquery-1.11.3.min.js"></script>
<script src="./js/jquery.mobile-1.4.5.min.js"></script>
<script type="text/javascript" charset="utf-8" src="cordova.js"></script>
<script type="text/javascript" src="js/app_scripts.js"></script>
<script type="text/javascript" src="js/admob.js"></script>
<script type="text/javascript">
app.initialize();
</script>
</body>
</html>
这是我的JS：
var app = {
// Application Constructor
initialize: function() {
this.bindEvents();
},
// Bind Event Listeners
//
// Bind any events that are required on startup. Common events are:
// 'load', 'deviceready', 'offline', and 'online'.
bindEvents: function() {
document.addEventListener('deviceready', this.onDeviceReady, false);
},
// deviceready Event Handler
//
// The scope of 'this' is the event. In order to call the 'receivedEvent'
// function, we must explicitly call 'app.receivedEvent(...);'
onDeviceReady: function() {
/*--error is here-->*/ app.receivedEvent('deviceready');
},
// Update DOM on a Received Event
receivedEvent:
$("#nextQ").click(function(){
var tempd = new Date(); //Get today's date
//Checks if localstorage had 'DateOpened' already stored
// Note that by adding strings in there, we end up with a string instead of adding.
// Note the order: Year first, then month, then day.
// Also, since we display it, we put separators in and add 1 to month (since Jan = 0).
var str = tempd.getFullYear() + "-" + (tempd.getMonth() + 1) + "-" + tempd.getDate();
console.log("Today's date: " + str);
var localVal = localStorage.getItem('DateOpened');
console.log("Previous localVal: " + localVal);
if(localVal != null){
var difference = localVal.localeCompare(str);
}
console.log("localeCompare: " + difference);
//If stored date is older than this date do something:
if(localVal == null || difference < 0){
// If the localstorage doesn't exist, nothing happens
console.log("App will now run once for today.")
//Run the JS for the app (give new quote since it is a new day)
var Quotes = [];
var ID = [];
var Tag = [];
//Get quotes from JSON file
$.ajax({
url: './json/facts.json',
dataType: 'json',
type: 'get',
success: function(data){
console.log(data);
console.log("successfully imported the JSON file");
console.log(data.length); //Returns 64
totalQ = data.length;
for (i = 0; i < totalQ; i++){
ID[i] = data[i][0];
Tag[i] = data[i][1];
Quotes[i] = data[i][2];
}
console.log(Quotes.length);
}
})
.done(function(data){ //This waits for AJAX to be done before running
var Quote = new String;
var qnumber = 0;
var totalQ //The total number of available quotes to choose from
var CurrentImage = String;
totalQ = Quotes.length - 1;
console.log("TotalQ = " + totalQ);
//Get list of which facts have already been seen
var seen = JSON.parse(localStorage.getItem('seen'));
console.log("var seen = " + seen);
if (seen == null){
var seen = new Array(totalQ);
for (var i = 0; i < seen.length; ++i) {
seen[i] = false;
}
console.log("var seen = " + seen);
}
//Get a Quote
ChooseQuote(0,totalQ);
//Change the image depending on the quote
//replace the quote with a new one
$("#qotd:visible").hide();
$("#ShineDiv").addClass("shine");
$(".facebox").css("background-image",CurrentImage);
$(".facebox").css("opacity","1.0");
$("#qotd").html(Quote);
console.log("Image Changed");
increaseXP();
//================
function ChooseQuote(min,max){
//Choose 2 random numbers, one for quotes one for image
var RandomNum = Math.floor(Math.random()*(max-min+1)+min);
var ImageNum = Math.floor(Math.random()*(5-1+1)+1);
Quote = Quotes[RandomNum];
CurrentImage = "url(./images/FaceBoxes/" + Tag[RandomNum] + "/" + Tag[RandomNum] + ImageNum + ".png)";
if (seen[RandomNum] == true ) {
//Choose new quote
ChooseQuote(0,totalQ);
console.log("Has this fact been seen before? Answer: " + seen[RandomNum] );
var numOfTrue = 0;
for(var i=0; i<=totalQ; i++){
if(seen[i] === "true")
numOfTrue++;
}
if (numOfTrue = totalQ) {
localStorage.setItem('All_Facts_Seen:', true);
console.log("All the Facts have been seen. Resetting Facts.");
seen = new Array(totalQ); //Empty the seen Array
localStorage.setItem('seen', JSON.stringify(seen)); //Save the empty Array
}
}
else {
seen[RandomNum] = "true";
console.log("This fact has never been seen.")
}
console.log(Quote);
console.log(CurrentImage);
//Remeber which fact is displayed
localStorage.setItem('Curr_Fact', Quote);
localStorage.setItem('Curr_ImgUrl', CurrentImage);
localStorage.setItem('seen', JSON.stringify(seen));
}
//==================
//Save the current date in local storage
localStorage.setItem('DateOpened',str);
console.log("The App Ran, you can get a new fact tomorrow");
console.log("Current LocalStorage Date: " + str);
});
}
else {
//If it is still the same day, show the last fact & image
var Quote = localStorage.getItem('Curr_Fact');
var CurrentImage = localStorage.getItem('Curr_ImgUrl');
$("#qotd:visible").hide(); //Hide main quote
$("#ShineDiv2").addClass("shine");
if ($('h2').hasClass("invisible")){ //if heading is invisble show it, remove that class
$('h2').css('visibility','visible').hide().fadeIn('slow').removeClass("invisible");
}
$(".facebox").css("background-image",CurrentImage);
setTimeout( function() { //This is so that the first image and new image don't crossfade/stretch
$(".facebox").css("opacity","1.0");
}, 100);
$("#qotd").html(Quote); //Replace the main message with the actual quote
console.log("Showing the same fact as before. Wait until tomorrow to get a new fact.");
}
},
};
$(window).load(function() {
var headerh;
var footerh;
var pageh;
var hbtn_nextq;
headerh = $("div[data-role='header']").outerHeight();
footerh = $("div[data-role='footer']").outerHeight();
pageh = $(window).height();
console.log(headerh + " " + footerh + " " + pageh);
var difference = pageh - headerh - footerh;
$(".ui-content").css("height", difference);
var h1, h2, h3, h4 , h5;
h1 = $(".ui-content").outerHeight();
h2 = $(".ui-content>h2").outerHeight();
h3 = $("#quotebox").outerHeight(true);
h4 = $("#nextQ").outerHeight();
h5 = ((h1 - h2 - h3 - h4) /2) - 50;
console.log(h1);
console.log(h2);
console.log(h3);
console.log(h4);
console.log(h5);
var h5s = h5 + "px";
//$("#quotebox").css("margin-top",h5s);
$(".ui-content>h2").css("margin-top",h5s);
//$("#nextQ").css("margin-bottom",h5s);
//ShowXP();
//Make the quotebox flip over on click
$(".facebox, #ShineDiv").click(function(){
$("#quotebox").removeClass("PulseEffect")
$("#ShineDiv").removeClass("shine");
$(".facebox").css("opacity","0");
$("#qotd").fadeIn("slow", function(){});
});
ShowXP();
});
function increaseXP(){
//Get the lvl and xp from storage
var lvl = localStorage.getItem("lvl", lvl);
var XP = localStorage.getItem("XP", XP);
console.log("Old XP = " + XP + " Old Level = " + lvl);
lvl = parseInt(lvl);
XP = parseInt(XP);
//Increase XP
XP = XP + 25;
//Increase lvl
if (XP >= 100){
lvl = lvl + 1;
localStorage.setItem('XP',XP);
localStorage.setItem('lvl',lvl);
UpdateXP(XP);
setTimeout(function() {
ShowUP(lvl);
}, 200);
XP = XP - 100;
console.log("Current XP = " + XP + " Current Level = " + lvl);
UpdateXP(XP);
}
localStorage.setItem('XP',XP);
localStorage.setItem('lvl',lvl);
UpdateXP(XP);
}
function ShowXP(){
var XP = localStorage.getItem("XP");
var lvl = localStorage.getItem("lvl");
if (XP == null){
XP = 0;
localStorage.setItem("XP", XP);
}
if (lvl == null){
lvl = 1;
localStorage.setItem("lvl",lvl);
}
lvl = parseInt(lvl);
XP = parseInt(XP);
$("#lvl").text(lvl);
$(".XPmeter > span#bar").each(function() {
$(this)
.data("origWidth", XP)
.width(0)
.animate({
width: $(this).data("origWidth") + "%" // or + "%" if fluid
}, 1200);
});
}
function UpdateXP(XP){
$(".XPmeter > span#bar").each(function() {
$(this)
.animate({
width: XP + "%" // or + "%" if fluid
}, 1200);
});
}
function ShowUP(new_level){
$("#medal").animate({height: "100px" },600, function(){
$("#lvl").text(new_level);
$("#medal").animate({height: "50px" },600);
});
$(".XPmeter > span#bar").width("0");
}
//-------------------------------------------------------------//
// //
// This is the scirpt that will get the facts and display them //
// //
//-------------------------------------------------------------//
最佳答案
那是因为您的receivedEvent不是定义为函数，而是定义为app对象的属性，因此不能将其称为函数。
您将其更改为：
// Update DOM on a Received Event
receivedEvent:
至：
// Update DOM on a Received Event
receivedEvent: function(id) {
关于javascript - app.receivedEvent不是函数，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/40277261/