why google map not load in javascript? - javascript

I am following the the steps given in this link
https://developers.google.com/maps/documentation/javascript/tutorial
I am getting error after load can you tell me where I wrong ? I already generate key ?
fiddle
http://jsfiddle.net/p3kcztvb/1/
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<style type="text/css">
html { height: 100% }
body { height: 100%; margin: 0; padding: 0 }
#map-canvas { height: 100% }
</style>
<script type="text/javascript"
src="https://maps.googleapis.com/maps/api/js?key=AIzaSyATC35pv00Ga3hRxP4t5W7NtM9as48PGVQs">
</script>
<script type="text/javascript">
function initialize() {
var mapOptions = {
center: new google.maps.LatLng(-34.397, 150.644),
zoom: 8
};
var map = new google.maps.Map(document.getElementById("map-canvas"),
mapOptions);
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map-canvas"/>
</body>
</html>

Following error explain itself.
"provided key is not a valid Google API Key,"
Generate correct key
To create your API key:
Visit the APIs Console at https://code.google.com/apis/console and log in with your Google Account.
Click the Services link from the left-hand menu.
Activate the Google Maps JavaScript API v3 service.
Click the API Access link from the left-hand menu. Your API key is available from the API Access page, in the Simple API Access section. Maps API applications use the Key for browser apps.
here
Markup Code as follow:-
// Adds a marker with popup window information
var marker1Latlng = new google.maps.LatLng(35.65654,-106);
var contentString1 = 'I love New Mexico! More about the Land of Enchantment';
var infowindow = new google.maps.InfoWindow({
content: contentString1
});
var marker1 = new google.maps.Marker({
position: marker1Latlng,
map: map,
title: 'New Mexico'
});
google.maps.event.addListener(marker1, 'click', function() {
infowindow.open(map,marker1);
});
//End of Add Marker code

Hi Kanika in Fiddle it seems like the API key you are using is not a valid key. You might need to regenerate the API key for Google Maps API Engine from your Google Console.

Change this code lines - basically you don't need a api key in here
<script type="text/javascript"
src="https://maps.googleapis.com/maps/api/js?key=AIzaSyATC35pv00Ga3hRxP4t5W7NtM9as48PGVQs">
</script>
Replace with
<script type="text/javascript"
src="https://maps.googleapis.com/maps/api/js?v=3.exp">
</script>

Related

Detecting entering Street View after user clicks in Google Maps info window

I need to be able to detect when a user clicks in a Google Maps info window to enter Street View. This can happen after the user clicks a marker on a map such as one for a restaurant or whatever. They click on the marker on the map and then an info window comes up in which they can click to enter Street View.
Also, does that open Street View in a new object on top of the map or does it open the Street View within the map object? How is one supposed to handle this non-standard entry into Street View? I note that the user can get back to the map by clicking a right arrow at top left of the street view. I also note that after the user enters Street View this way, that the panorama.getVisible() property is false.
Have you tried the 'visible_changed' event? Here is a sample that works for me using the getVisible().
<!DOCTYPE html>
<html>
<head>
<title>Catch panorama change</title>
<meta name="viewport" content="initial-scale=1.0">
<meta charset="utf-8">
<style>
html, body {height: 100%; margin: 0; padding: 0;}
#map {height: 100%;}
</style>
</head>
<body>
<div id="map"></div>
<script>
var map;
var panorama;
function initMap() {
map = new google.maps.Map(document.getElementById('map'), {
center: {lat: 49.288, lng: -123.11},
zoom: 17
});
panorama = map.getStreetView();
panorama.addListener('visible_changed', function() {
if (panorama.getVisible()) {
console.log('Entering streetview');
} else {
console.log('Leaving streetview');
}
});
}
</script>
<script src="https://maps.googleapis.com/maps/api/js?v=3.20&key=YOUR_API_KEY&callback=initMap" async defer></script>
</body>
</html>
Maybe your project is more complex and needs more adjustment. But otherwise in the new API (ver > 3.22) the infowindow does not include the streetview.

URL variables on a Google 'My Maps'

So I have this:
<iframe src="https://mapsengine.google.com/map/embed?mid=zkXLRR9SQKDQ.kfLF9HxBaALo&z=15" width="100%" height="100%"></iframe>
I managed to find the zoom code on here, however I couldn't find a way to remove the grey bar that appears at the top of the map with my google account stuff.
A screenshot can be found here.
Is there a way to remove this using a URL parameter?
I don't think it's possible to remove the bar. Instead you could use the Google Maps Javascript API. It's fairly easy to use and gives you much more control. Here's an example that loads your location with the right zoom level: plnkr.co.
<!DOCTYPE html>
<html>
<head>
<style type="text/css">
html,
body,
#map-canvas {
height: 100%;
margin: 0;
padding: 0;
}
</style>
<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js">
</script>
<script type="text/javascript">
function initialize() {
var latLng = new google.maps.LatLng(51.4893169, -2.1182648);
var mapOptions = {
center: latLng,
zoom: 15,
};
var map = new google.maps.Map(document.getElementById('map-canvas'),
mapOptions);
var image = 'http://icons.iconarchive.com/icons/visualpharm/must-have/256/Check-icon.png';
var marker = new google.maps.Marker({
position: latLng,
map: map,
icon: image
});
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map-canvas"></div>
</body>
</html>
Documentation for the API.
If you need a specific style for your map, you can use the Styled Maps Wizard.
Depending on where you put your map on your page, it might conflict with scrolling. If that is the case, then set the scrollwheel option to false. That allows you to scroll over the map without it highjacking the scroll event for it's zoom functionality. I've updated the plnkr to use scrollwheel: false.

How do I change the position of a Google Maps marker?

I have the following code for a map that I'm working on and I'd like to see if I can put custom markers throughout. The problem is that I can't seem to get the first marker to change position no matter if I input latitude and longitude. Perhaps I'm entering the information incorrectly.
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<title>UmApp</title>
<style>
html, body, #map-canvas {
height: 100%;
margin: 0px;
padding: 0px
}
</style>
<script src="https://maps.googleapis.com/maps/api/js?v=key"></script>
<script>
function initialize() {
var myLatlng = new google.maps.LatLng(41.160531, -73.256303);
var mapOptions = {
zoom: 16,
center: myLatlng
}
var map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
var marker = new google.maps.Marker({
position: 41.159317, -73.257443,
map: map,
title: 'Hello World!'
});
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map-canvas"></div>
</body>
</html>
try
var marker = new google.maps.Marker({
position: new google.maps.LatLng(41.159317, -73.257443);
map: map,
title: 'Hello World!'
});
I still cannot make comments, so I'll answer your comment question here:
As Kostrzak said, you would need to write
var marker = new google.maps.Marker({
position: new google.maps.LatLng(41.159317, -73.257443),
map: map,
title: 'Hello World!'
});
(Careful with the semicolon instead of the comma. Although it should work anyway, it may throw a bunch of errors on some IDEs).
The position inside the Marker object is expecting coordinates, but not in any form. It needs to have those coordinates given in a specific way: As a LatLng object. Because of this, you need to set those coordinates using the Google JavaScript library, which creates an object with your specified coordinates:
position: new google.maps.LatLng(41.159317, -73.257443)
Here you have SET the position of the marker. If you want to change it, you just need to set
marker.position = new google.maps.LatLng({newLat}, {newLng});
If you opened the console, you'd see a bunch of errors thrown by the position line: "Uncaught SyntaxError: Unexpected token - ". Console logs are pretty helpful most of the times, so use them!

Opening media from google maps custom marker

So I'm working on a custom google maps tour type application and I'm wondering how to get media to popup when I click a link within a google maps marker. Ideally this is what I would like to happen:
1. User clicks on marker and the normal white box comes up like on real Google Maps.
2. Within that text box I would like to have a button that will launch media that I have stored on a SQL server somewhere. This media could be audio, pictures, or video.
The code I have so far is below. If anyone could let me know how to do this, or point me in the right direction that would be awesome!
Thanks
<!doctype html>
<html>
<head>
<title>HuskyWalk Application Demo</title>
<meta name="viewport" conmtent="width=device-width, initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<style>
html, body, #mapcanvas {
margin: 0;
padding: 0;
height: 98%;
}
</style>
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=false"></script>
<script>
var map;
var iteCoords = new google.maps.LatLng(41.806501, -72.252769);
//var mapCoords = new google.maps.LatLng(navigator.getCurrentPosition().coords.latitude, navigator.getCurrentPosition().coords.longitude);
//var mapCoords = new navigator.getCurrentPosition().coords;
function initialize() {
//var position = new navigator.geolocation.getCurrentLocation(showPosition);
var mapOptions = {
zoom: 18,
center: iteCoords,
mapTypeId: google.maps.MapTypeId.HYBRID
};
map = new google.maps.Map(document.getElementById('mapcanvas'), mapOptions);
google.maps.event.addListenerOnce(map, "bounds_changed", watchStart);
var marker = createMarker(); //creates marker
}
function watchStart() {
if (navigator.geolocation) {
navigator.geolocation.watchPosition(showPosition);
} else {
alert("Geolocation is not supported by this browser.");
}
}
function createMarker() {
var marker = new google.maps.Marker({
position: iteCoords,
map: map,
title: 'ITEB',
});
google.maps.event.addListener(marker, "click", onMarker_clicked);
return marker;
}
function onMarker_clicked() {
alert(this.get('id'));
}
</script>
</head>
<body onload="initialize()">
<div id="mapcanvas"></div>
<div>
<p>Maps provided by Google Maps</p>
</div>
</body>
</html>
I know there is going to need to be some stuff in the onMarker_Clicked() method most likely, I'm just not sure what.
You'll want to use an InfoWindow and call its open() method from the click event handler.
See also the section in the google maps developer guide https://developers.google.com/maps/documentation/javascript/overlays#InfoWindows

Google Maps marker doesn't receive click events

I'm experimenting with QtWebkit and Google Maps. The problem I've run into is calling C++ slots from the QWebView.
The page displayed in the QWebView is a modified Google Maps example:
<!DOCTYPE html>
<html>
<head>
<title>Google Maps JavaScript API v3 Example: Event Simple</title>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="UTF-8">
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?sensor=true"></script>
<style type="text/css">
html { height: 100% }
body { height: 100%; margin: 0; padding: 0 }
#map_canvas { height: 100% }
</style>
<script type="text/javascript">
function initialize() {
var myOptions = {
zoom: 4,
center: new google.maps.LatLng(-25.363882, 131.044922),
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById('map_canvas'),
myOptions);
var marker = new google.maps.Marker({
position: map.getCenter(),
map: map,
title: 'test'
});
google.maps.event.addListener(marker, 'click', function() {
//if (map.getZoom() == 8) {
// map.setZoom(4);
// } else {
// map.setZoom(8);
// }
window.maiWi.showList();
});
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map_canvas" style="width:100%; height:100%"></div>
</body>
</html>
maiWi is the QMainWindow object which contains the slot showList() I want to call and which has been added to the Javascript window object.
If I add another element to the web page with the attribute onclick="maiWi.showList()", then the slot gets called and everything is well. However, I want to call the slot when the Maps marker gets clicked. The marker, however doesn't seem to respond to click events in QWebView. Even the commented-out example code doesn't work.
In Chrome, the event listener gets called and does what it's supposed to, but in QWebView nothing happens.
It turns out that I should turn off optimized rendering for map markers. When adding optimized:false to the marker declaration, then things start to work:
var marker = new google.maps.Marker({
position: map.getCenter(),
map: map,
optimized: false,
title: 'test'
});

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