Develop Reference

Google maps API loads for a second then says check js console but no warnings or errors, any ideas

I'm using an API in a website for the first time, the google map pops up with the marker on my location that I have set but immediately goes gray and says check the console, in which there are no errors or warnings.
<script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk&callback=initMap" async defer>
</script>
<script>
function initMap() {
var albany = {lat: 42.676762, lng: -73.821991};
var map = new google.maps.Map(document.getElementById('map'), {
zoom: 4,
center: albany
});
var marker = new google.maps.Marker({
position: albany,
map: map
});
}
</script>

You need to include a valid key when you load the API.
The console should contain text to that effect and the URL that needs to be authorized.

removing default mouseover tooltip from marker in google-maps

I have created an application for showing an Information Window popup for markers, The application is working fine and the popup is showing correctly but the only solution is that along with the custom Information Window popup when under mouse-over, default popup with html tag is showing like as shown below.
JSFiddle
Can anyone please tell me some solution for this
My code is as given below
var infowindow = new google.maps.InfoWindow();
function point(name, lat, long) {
var self = this;
self.name = name;
var marker = new google.maps.Marker({
position: new google.maps.LatLng(lat, long),
title: name,
map: map,
draggable: true
});
google.maps.event.addListener(marker, 'mouseover', function () {
infowindow.setContent(marker.title);
infowindow.open(map, marker);
}.bind(this));
google.maps.event.addListener(marker, 'mouseout', function () {
infowindow.close();
}.bind(this));
}
var map = new google.maps.Map(document.getElementById('googleMap'), {
zoom: 5,
center: new google.maps.LatLng(55, 11),
mapTypeId: google.maps.MapTypeId.ROADMAP
});
var viewModel = {
points: ko.observableArray([
new point('<div>Test1<br>Test5</div>', 55, 11),
new point('Test2', 56, 12),
new point('Test3', 57, 13)])
};
function addPoint() {
console.log(viewModel.points().length);
for (var i = 0; i < viewModel.points().length; i++)
{
console.log(i);
console.log(viewModel.points().marker.title);
}
viewModel.points.push(new point('a', 58, 14));
}
ko.applyBindings(viewModel);

You could manually remove the element title attribute on mouseover.
Try changing
google.maps.event.addListener(marker, 'mouseover', function () {
To
google.maps.event.addListener(marker, 'mouseover', function (e) {
e.ya.target.removeAttribute('title');
Also for Edge, you need to be change it to:
e.ya.target.parentElement.removeAttribute('title')
JSFiddle Link (Google Maps API not working)

It appears that the title of your marker is set to the html content of your pop up window.
When you create the marker object, give it a title attribute of what you would like to be displayed (i.e. name of your location...)
var marker = new google.maps.Marker({
position: whateverpositionyouset,
title: whatevertitleyouwant,
map: map
})

I have been taking advantage of this thread in working on almost the same problem. I am able to get the Google Maps API to properly display European accented glyphs in the pop-up display when a marker is clicked, but the same encoded text string is not properly rendered on mouseover.
So, after looking at the helpful code example in JSFiddle, and not being able to use that suggested technique for removing the 'title' text, it finally became clear to me what MrUpsidown was suggesting when he thought we might just change the name of the property being displayed as a title. I did not realize that the definition of the reserved property 'title' was "text to be displayed on hover." So, the simplest solution is to use a property such as 'myTitle' in the Marker options list. When there is no title property, hovering becomes a non-event.

Google custom Icon not loading

I am trying to load a custom icon for Google Maps API v3. The code I have is as follows:
$(function(){
function initialize() {
var mapOptions = {
center: new google.maps.LatLng(42.2542586, -83.8873974),
zoom: 10
};
var map = new google.maps.Map(document.getElementById("map-canvas"),
mapOptions);
}
google.maps.event.addDomListener(window, 'load', initialize);
$('.valley').on('click', function(){
var myLatlng = new google.maps.LatLng(42.000, -83.0073974);
var mapOptions = {
zoom: 14,
center: myLatlng
}
var map = new google.maps.Map(document.getElementById("map-canvas"), mapOptions);
var iconMarker = 'pin2.jpg'
var marker = new google.maps.Marker({
position: myLatlng,
animation: google.maps.Animation.DROP,
icon: iconMarker,
map: map,
title:"Hello"
});
});
});
The following script is in the 'application.html.erb' file (i've taken out my apikey)
<script type="text/javascript"
src="https://maps.googleapis.com/maps/api/js?key=APIKEY&sensor=false"></script>
Pretty straight forward and the actual map loads, but for some reason the rails app is not finding the .jpgfor the icon. I've placed it in various locations, currently it is in the root folder. For some reason it is trying to load the file as a text/html file instead of an image. I replaced the image with another image that is loading properly on the web page, and I still get a 404 with the browser trying to load it as an text/html
Here is the error in the console

Try with:
var iconMarker = '/assets/pin2.jpg';

Google Maps API V3 not rendering competely on tabbed page using Twitter's Bootstrap

I'm using Twitter's Bootstrap for defining my CSS. I have made a page with three tabs. The second tab contains a map built with Google Maps. However when opening the page and switching to the second page with the map, the map is not rendered completely. Once I reload the page with the google maps tab as the selected tab the map loads entirely.
I read some posts that advised people with the same problem to add the following code to the javascript:
google.maps.event.addDomListener(window, 'resize', function() {
map.setCenter(homeLatlng);
});
However this doesn't seem to be the solution. Please find the complete code below:
Javascript:
<script type="text/javascript">
function initialize() {
google.maps.event.addDomListener(window, 'resize', function() {
map.setCenter(homeLatlng);
});
var myLatlng = new google.maps.LatLng(37.4419, -122.1419);
var myOptions = {
zoom: 13,
center: myLatlng,
mapTypeId: google.maps.MapTypeId.ROADMAP
}
var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
downloadUrl("data.xml", function(data) {
var markers = data.documentElement.getElementsByTagName("marker");
for (var i = 0; i < markers.length; i++) {
var latlng = new google.maps.LatLng(parseFloat(markers[i].getAttribute("lat")),
parseFloat(markers[i].getAttribute("lng")));
var marker = new google.maps.Marker({position: latlng, map: map});
}
});
}
</script>
HTML:
<div class="tab-pane" id="orange" style="background-color:#E3F2FF;">
<div id="map_canvas" style="width:780px; height:400px; overflow:;"></div>
</div>
How can I resolve this? Maybe I can add some javascript that reloads the google maps part once the tab is selected but I don't know how to do this....
Updated code still shows the error:
<div class="tab-pane" id="orange" style="background-color:#E3F2FF;">
<div id="map_canvas" style="width:780px; height:400px; overflow:;"></div>
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
<script type="text/javascript" src="util.js"></script>
<script type="text/javascript">
function initialize() {
google.maps.event.addDomListener(window, 'resize', function() {
map.setCenter(homeLatlng);
});
var myLatlng = new google.maps.LatLng(37.4419, -122.1419);
var myOptions = {
zoom: 13,
center: myLatlng,
mapTypeId: google.maps.MapTypeId.ROADMAP
}
var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
downloadUrl("data.xml", function(data) {
var markers = data.documentElement.getElementsByTagName("marker");
for (var i = 0; i < markers.length; i++) {
var latlng = new google.maps.LatLng(parseFloat(markers[i].getAttribute("lat")),
parseFloat(markers[i].getAttribute("lng")));
var marker = new google.maps.Marker({position: latlng, map: map});
}
});
map.checkResize();
}
</script>
</div>

I was battling with this issue as well. I was using a modal form and it rendered the map when it was hidden. When the tab is shown, you need to trigger this code:
google.maps.event.trigger(map, 'resize');
map.setZoom( map.getZoom() );
Hopefully it will work for you. If that doesn't work, here is the link where I found the solution. Maybe there will be another helpful comment.
http://code.google.com/p/gmaps-api-issues/issues/detail?id=1448

There's a lot of solutions here and frankly they're all wrong. If you have to hi-jack the default functionality of Bootstrap tabs, you might as well not use Bootstrap tabs. If you're only calling resize after the tab is shown, you may still have issues with the GMaps interface (zoom level and such). You simply have to initialize the map after the tab is visible.
var myCenter=new google.maps.LatLng(53, -1.33);
var marker=new google.maps.Marker({
position:myCenter
});
function initialize() {
var mapProp = {
center:myCenter,
zoom: 14,
draggable: false,
scrollwheel: false,
mapTypeId:google.maps.MapTypeId.ROADMAP
};
var map=new google.maps.Map(document.getElementById("map-canvas"),mapProp);
marker.setMap(map);
google.maps.event.addListener(marker, 'click', function() {
infowindow.setContent(contentString);
infowindow.open(map, marker);
});
};
$('a[data-toggle="tab"]').on('shown.bs.tab', function (e) {
initialize();
});
You can see a working example in this bootply: http://www.bootply.com/102241
Note: if your interface is still glitchy, it could be this issue:
Google Maps API V3 : weird UI display glitches (with screenshot)
Using the most recent gmaps api, you just need to add this to your styling:
.gm-style img { max-width: none; }
.gm-style label { width: auto; display: inline; }

Works for me after testing different delays :
$(window).resize(function() {
setTimeout(function() {
google.maps.event.trigger(map, 'resize');
}, 300)
});
Hope it helps.

I have solved the problem by using
google.maps.event.trigger(map, 'resize');
inside show function in bootstrap-tab.js means at the time of showing the box you should trigger resize event and will work..
Edit: I have seen another link with the same answer
Google Maps API v3, jQuery UI Tabs, map not resizing
I have seen this link after solving the problem to find out the reason which is still unanswered that why resize event does not works on the click event of the tabs but works in the tab js

this works fine for me, I use jquery tabs
setTimeout(function() {
google.maps.event.trigger(map, "resize");
map.setCenter(new google.maps.LatLng(default_lat, default_lng));
map.setZoom(default_map_zoom);
}, 2000);
from this link https://code.google.com/p/gmaps-api-issues/issues/detail?id=1448

To show a google maps in a hidden div, the div must show before the map is created and loaded. Below is an example:
<div id="map_canvas" style="width:500px; height:500px"></div>
<script>
$(document).ready(function(){
$('#button').click(function() {
$('#map_canvas').delay('700').fadeIn();
setTimeout(loadScript,1000);
});
});
function initialize() {
var title= "Title";
var lat = 50;
var lng = 50;
var myLatlng = new google.maps.LatLng(parseFloat(lat),parseFloat(lng));
var myOptions = {
zoom: 8,
center: myLatlng,
mapTypeId: google.maps.MapTypeId.ROADMAP
}
var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
var marker = new google.maps.Marker({
position: myLatlng,
title:artTitle
});
// To add the marker to the map, call setMap();
marker.setMap(map);
}
function loadScript() {
var script = document.createElement("script");
script.type = "text/javascript";
script.src = "http://maps.google.com/maps/api/js?sensor=false&callback=initialize";
document.body.appendChild(script);
}
</script>

For me, what it worked was to call the function that renders the map after the, in my case, the modal had shown.
All I had to do was:
$(document).on("shown", "#eventModal", function(){
bindMap(coordinates);
});
You can do the same with the tabs, because they also have a "shown" event.

Adding Event Listener causes Google Map to freeze

I am attempting to create a google map with markers on my page. I have an unordered list where each item has data attributes for latitude, longitude and title. Using JQuery I pull these values and produce a marker on the map for each item in the list. Everything seems to work OK except google maps will not load tiles as you pan around the map.
This is how I initialize the map:
var map;
// initialize google map
$(function () {
var myOptions = {
zoom: 10,
center: new google.maps.LatLng(CoordinatesLat, CoordinatesLong),
mapTypeId: google.maps.MapTypeId.ROADMAP,
mapTypeControl: false
}
// initiate map
map = new google.maps.Map($("#map")[0], myOptions);
// when map is loaded, add events and behaviors to it
google.maps.event.addListenerOnce(map, 'tilesloaded', addEventsToMap(".event")); //commenting this line prevents GMAP problems
});
FYI - before I was using maps.event.addListener() and the map would work momentarily and then become completely unresponsive. Changing it to maps.event.addListenerOnce() stopped the freezing but still has the tile loading problem.
And this is the callback, where evidently I've done something wrong:
//add events from event list to map. add behavior to events ie. mouseover
function addEventsToMap(selector) {
$(selector).each(function (i, $e) {
$e = $($e);
var latlng;
if ($e.attr("data-geo-lat") && $e.attr("data-geo-long")) {
latlng = new google.maps.LatLng($e.attr("data-geo-lat"), $e.attr("data-geo-long"));
$e.marker = new google.maps.Marker({
position: latlng,
map: map,
title: $e.attr("data-title")
});
google.maps.event.addListener($e.marker, 'click', function () { window.location = $e.attr("data-href"); });
google.maps.event.addListener($e.marker, 'mouseover', function () { $e.addClass("event-hover"); });
google.maps.event.addListener($e.marker, 'mouseout', function () { $e.removeClass("event-hover"); });
//when mouse hovers over item in list, center map on it's marker
$e.mouseenter(function () {
map.panTo(latlng);
});
}
});
}
Any idea what could be causing this?

I see a problem, though I'm not sure if it's the issue here. If you examine this line:
google.maps.event.addListenerOnce(map, 'tilesloaded', addEventsToMap(".event"));
What you are intending to do is call your 'addEventsToMap' once the map is loaded, but instead what you are doing is calling the function and then assigning the return value of that as a listener.
You need this instead, and I think it shouldn't crash anymore.
google.maps.event.addListenerOnce(map, 'tilesloaded', function() {
addEventsToMap(".event");
});
If that doesn't work, I would recommend looking at the Javascript Console of whatever browser you are using, to see what error is happening to make the map crash.