我的 Rails 4 应用程序运行 CoffeeScript 来绘制 Google map 。乍一看，它似乎不起作用。然而，当我点击浏览器刷新按钮时， map 加载得非常顺利。这已经过测试并且正在发生:
- 移动版 Safari (iOS7)
- 桌面版 Safari (OSX)
- Chrome (OSX)
- Chrome(Windows 7)
来自 application.html.erb 的 header
<head>
<!-- Boilerplate -->
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="description" content="">
<meta name="viewport" content="width=device-width">
<%= stylesheet_link_tag "normalize.min.css" %>
<%= stylesheet_link_tag "main.css" %>
<%= javascript_include_tag "vendor/modernizr-2.6.2-respond-1.1.0.min.js" %>
<!-- Icon Font -->
<link href="//netdna.bootstrapcdn.com/font-awesome/3.2.1/css/font-awesome.css" rel="stylesheet">
<!-- Google Maps API -->
<%= javascript_include_tag "https://maps.googleapis.com/maps/api/js?key=*********&sensor=true" %>
<!-- Rails -->
<%= stylesheet_link_tag "application", media: "all", "data-turbolinks-track" => true %>
<%= javascript_include_tag "application", "data-turbolinks-track" => true %>
<%= csrf_meta_tags %>
<link href='http://fonts.googleapis.com/css?family=Droid+Sans|Lobster' rel='stylesheet' type='text/css'>
</head>
application.js
// This is a manifest file that'll be compiled into application.js, which will include all the files
// listed below.
//
// Any JavaScript/Coffee file within this directory, lib/assets/javascripts, vendor/assets/javascripts,
// or vendor/assets/javascripts of plugins, if any, can be referenced here using a relative path.
//
// It's not advisable to add code directly here, but if you do, it'll appear at the bottom of the
// compiled file.
//
// Read Sprockets README (https://github.com/sstephenson/sprockets#sprockets-directives) for details
// about supported directives.
//
//= require jquery
//= require jquery_ujs
//= require jquery.turbolinks
//= require turbolinks
//= require_tree .
locations.js.coffee
# Place all the behaviors and hooks related to the matching controller here.
# All this logic will automatically be available in application.js.
# You can use CoffeeScript in this file: http://coffeescript.org/
initialize = ->
mapOptions =
center: new google.maps.LatLng(33.51976, -101.95781)
zoom: 16
mapTypeId: google.maps.MapTypeId.ROADMAP
map = new google.maps.Map(document.getElementById("map-canvas"), mapOptions)
myLatlng = new google.maps.LatLng(33.51976, -101.95781);
marker = new google.maps.Marker(
position: myLatlng
map: map
title: "Hello World!"
)
contentString = "<div id=\"info_content\">" + "<h3>Mighty Wash Amazing Autobath</h3>" + "<ul>" + "<li>6506 82nd Street, Lubbock, Texas 79424</li>" + "<li>806.553.0722</li>" + "<li>8:00am - 9:00pm</li>" + "</ul>" + "</div>"r
infowindow = new google.maps.InfoWindow(content: contentString)
google.maps.event.addListener marker, "click", ->
infowindow.open map, marker
infowindow.open(map, marker)
google.maps.event.addDomListener window, "load", initialize
locations/index.html.erb
<div id="map-canvas"/>
最佳答案
这听起来很像 Rails javascript only works after reload .建议的解决方案是用以下内容包装您的 coffeescript:
ready = ->
// functions
$(document).ready(ready)
$(document).on('page:load', ready)
关于javascript - 谷歌地图仅在 "refresh"之后加载，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/19185403/