[更新]
嗨!根据我的第一个问题,这是一个更详细的问题。因此,我想根据用户在页面1中选择的选项更改页面2上的地图指针。
[示例:用户在第1页上选择雨伞,单击“立即查找”按钮,然后在第2页上的地图上显示地图指针“ Clementi 7-11”和“ Cheers Buona Vista”。但是,如果用户在页面上选择润唇膏,则单击“立即查找”按钮,它将在页面2的地图上显示用户地图指针“ SP 7-11”和“ Cheers Bouna Vista”。
当前,我的问题是,无论用户在页面1中选择了什么,它总是在页面2中的地图上显示地图指针'Clementi 7-11'和'Cheers Buona Vista'。
((我不确定为什么当您运行代码段时,它不显示选项的下拉列表,但是我可以在VSC中进行选择,也可以显示我的Google Maps和地图指针)
var arr = [{
img: 'umbrella.png',
item: 'Umbrella',
price: '$10',
value: 1,
qty: 0
},
{
img: 'lipbalm.png',
item: 'Lip Balm',
price: '$5',
value: 2,
qty: 0
},
{
img: 'flu.png',
item: 'Flu Medication',
price: '$5',
value: 3,
qty: 0
},
{
img: 'glucose.png',
item: 'Glucose Sweets',
price: '$1',
value: 4,
qty: 0
}
];
var globalIndex = 0;
//Page 1 Select
function populateOptions() {
console.log('populateOptions');
var o = "";
$.each(arr, function(index, val) {
console.log("index:" + index);
var item = arr[index].item;
o = o + "<option value='" + arr[index].value + "'>" + item + "</option>";
console.log(arr[index].value)
});
$("#myOption").html(o);
$("#myOption").selectmenu("refresh");
};
$(document).on("pagecreate", "#page1", function() {
populateOptions();
$('#myOption').on('change', function() {
console.log(this.value);
if (this.value == 2) {
$('option').attr('value', 2);
} else if (this.value == 3) {
$('option').attr('value', 3);
} else if (this.value == 4) {
$('option').attr('value', 4);
} else {
$('option').attr('value', 1);
}
console.log(arr[globalIndex].value)
$(":mobile-pagecontainer").pagecontainer("load", "#page2", {
role: "page"
});
});
$("#myOption").selectmenu("refresh", true);
});
//Page 2
$(document).on("pagecreate", "#page2", function() {
var map = new google.maps.Map(document.getElementById('map-canvas'), {
center: {
lat: 11.3083,
lng: 103.7776
},
zoom: 14,
mapTypeId: 'roadmap'
});
});
// //Umbrella Stores
var umbrellaPoints = [{
latitude: 1.315680,
longitude: 103.764976,
title: "Clementi 7-11",
content: "<h3>Clementi 7-11</h3>"
},
{
latitude: 1.307567,
longitude: 103.789972,
title: "Cheers Buona Vista",
content: "<h3>Cheers Buona Vista</h3>"
},
];
// //Lip Balm Stores
var lipBalmPoints = [{
latitude: 1.311639,
longitude: 103.778665,
title: "SP 7-11",
content: "<h3>SP 7-11</h3>"
},
{
latitude: 1.307567,
longitude: 103.789972,
title: "Cheers Buona Vista",
content: "<h3>Cheers Buona Vista</h3>"
},
];
// //Flu Medicine Stores
var fluMedPoints = [{
latitude: 1.303444,
longitude: 103.792011,
title: "Cheers Biopolis Street",
content: "<h3>Cheers Biopolis Street</h3>"
},
{
latitude: 1.311639,
longitude: 103.778665,
title: "SP 7-11",
content: "<h3>SP 7-11</h3>"
}
];
// //Glucose Sweets Stores
var gluSweetPoints = [{
latitude: 1.315680,
longitude: 103.764976,
title: "Clementi 7-11",
content: "<h3>Clementi 7-11</h3>"
},
{
latitude: 1.303444,
longitude: 103.792011,
title: "Cheers Biopolis Street",
content: "<h3>Cheers Biopolis Street</h3>"
}
];
function findMe() {
$('#popupDialogue').popup();
$('#popupDialogue').popup('open');
navigator.geolocation.getCurrentPosition(onFindSuccess, onError);
};
function onFindSuccess(position) {
$('#popupDialogue').popup('close');
var latlong = new google.maps.LatLng(position.coords.latitude,
position.coords.longitude);
var mapProp = {
center: latlong,
zoom: 18,
mapTypeId: google.maps.MapTypeId.HYBRID
};
var map = new google.maps.Map(document.getElementById("map-canvas"), mapProp);
var content = "<h3>You are here</h3>";
var title = "Your position";
addMarkersToMap(map, latlong, title, content);
}
function onError(error) {
alert("Encounter an error")
}
function addMarkersToMap(map, latlong, title, popcontent) {
var marker = new google.maps.Marker({
position: latlong,
map: map,
title: title
});
var infowindow = new google.maps.InfoWindow({
content: popcontent
});
infowindow.open(map, marker);
}
function showPoints() {
var latlong = new google.maps.LatLng(1.311166, 103.775583);
var mapProp = {
center: latlong,
zoom: 14,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById("map-canvas"), mapProp);
$('#findNow').click(function() {
console.log(this.value)
});
console.log(arr[globalIndex].value);
if (arr[globalIndex].value == 1) {
$.each(umbrellaPoints, function(index, val) {
var latlong2 = new google.maps.LatLng(val.latitude, val.longitude);
addMarkersToMap(map, latlong2, val.title, val.content);
});
} else if (arr[globalIndex].value == 2) {
$.each(lipBalmPoints, function(index, val) {
var latlong3 = new google.maps.LatLng(val.latitude, val.longitude);
addMarkersToMap(map, latlong3, val.title, val.content);
});
} else if (arr[globalIndex].value == 3) {
$.each(fluMedPoints, function(index, val) {
var latlong4 = new google.maps.LatLng(val.latitude, val.longitude);
addMarkersToMap(map, latlong4, val.title, val.content);
});
} else if (arr[globalIndex].value == 4) {
$.each(gluSweetPoints, function(index, val) {
var latlong5 = new google.maps.LatLng(val.latitude, val.longitude);
addMarkersToMap(map, latlong5, val.title, val.content);
});
}
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.css" />
<script src="http://code.jquery.com/jquery-1.11.1.min.js"></script>
<script src="http://code.jquery.com/mobile/1.4.5/jquery.mobile-1.4.5.min.js"></script>
<script src="http://maps.googleapis.com/maps/api/js?key=AIzaSyD7WcthdB_FxP0wUX1rRgJCDHiw2IpqUz0"></script>
</head>
<body>
<!-- Page 1 -->
<div data-role="page" id="page1">
<div data-role="main" class="ui-content" id="page1main" style="margin-top: 250px;">
<label for="select">Tell me what are you looking for today:</label>
<select name="select" class="selectItem" id="myOption"></select>
<br>
<button style="width: 70%; margin-left: auto; margin-right: auto;" id="findNow">
<a href="#page2" data-transition="flip"onclick="showPoints()">Find Now</a>
</button>
</div>
</div>
<!-- Page 2 -->
<div data-role="page" id="page2">
<div data-role="header">
<a href="#page1" class="ui-btn ui-icon-home ui-btn-icon-left ui-corner-all ui-btn-icon-notext"></a>
<h1>Google Maps</h1>
<a data-rel="back" data-role="button" data-icon="arrow-l" data-iconpos="left">Go back</a>
</div>
<div data-role="main" class="ui-content">
<div id='content'>
<p><button class="ui-button" onclick="findMe()">Find Me</button></p>
<p><button class="ui-button" onclick="showPoints()">Places of interest</button></p>
<div id="map-canvas"></div>
</div>
</div>
<div data-role="popup" id="popupDialogue" data-dismissible="false" style="max-width:400px;">
<div data-role="header">
<h1>Map loading...</h1>
</div>
<div role="main" class="ui-content">
<h3 class="ui-title">Retrieving current position... please wait</h3>
</div>
</div>
</div>
</html>
[globalIndex
从未更改,它保持为0。arr[0].value
为1,因此arr[globalIndex].value
也是1。您可能想通过globalIndex
来更新this.value
。>
$(document).on("pagecreate", "#page1", function () {
populateOptions();
$('#myOption').on('change', function() {
console.log( this.value );
globalIndex = this.value;
if (this.value == 2){
$('option').attr('value', 2);
} else if (this.value == 3){
$('option').attr('value', 3);
} else if (this.value == 4){
$('option').attr('value', 4);
} else {
$('option').attr('value', 1);
}
// $('#myOption').attr('value', 'this.value');
console.log(arr[globalIndex].value)
$( ":mobile-pagecontainer" ).pagecontainer( "load", "#page2", { role: "page" } );
});
您的示例不是很清楚,逻辑也不清楚,因为它是一个受限制的示例。考虑以下代码。