如何在包含display:none的选项卡或div中显示Google Maps Directions [英] How to show Google Maps Directions in tabs or div that has display:none
问题描述
当我将Google地图(v3)与方向加载到对用户隐藏的div中时,结果地图不会正确放大和居中。我试着发射一个 resize
事件,但那只能部分解决问题。
When I'm loading a Google Map (v3) with Directions into a div that is hidden from the user, the resulting map is not zoomed and centered correctly. I tried firing a resize
event but that did only partially solve the problem.
通常当用方向加载地图时,API会自动查找最佳视图(即缩放级别和中心)以显示整个旅程。任何想法我做错了什么?
Usually when loading a map with directions, the API automatically finds the optimal view (ie. zoom level and center) as to show the entire journey. Any ideas what I'm doing wrong?
请参阅 JsFiddle
<button id="show">Show</button>
<div id="a">
<div id="map_wrapper" style="display:none">
<div id="map_canvas" style="height: 354px; width:713px;"></div>
</div>
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=false&callback=initialize"></script>
<script>
var directionsService,
directionsDisplay,
map;
function initialize() {
directionsService = new google.maps.DirectionsService();
directionsDisplay = new google.maps.DirectionsRenderer();
var mapOptions = { mapTypeId: google.maps.MapTypeId.ROADMAP, disableDefaultUI: true }
map = new google.maps.Map(document.getElementById('map_canvas'), mapOptions);
directionsDisplay.setMap(map);
var start = 'New York, NY';
var end = 'Chicago, IL';
var request = { origin: start, destination: end, travelMode: google.maps.DirectionsTravelMode.DRIVING };
directionsService.route(request, function(response, status) {
if (status == google.maps.DirectionsStatus.OK) {
directionsDisplay.setDirections(response);
}
});
}
</script>
</div>
和javascript:
And the javascript:
$(document).ready(function(e) {
$('#show').on('click', function() {
$('#map_wrapper').show();
google.maps.event.trigger(map, "resize");
});
});
推荐答案
修改ready函数,如下所示:
Modify the ready-function as follows:
$(document).ready(function(e) {
$('#show').on('click', function() {
$('#map_wrapper').show();
google.maps.event.addListenerOnce(map, "resize",function(){
try{this.fitBounds(directionsDisplay.getDirections().routes[0].bounds)
}catch(e){}
});
google.maps.event.trigger(map, "resize");
});
});
当地图中有路线可用时,将地图边界设置为边界。
It will , when a route is available inside the map, set the bounds of the map to the bounds of the route.
演示: http: //jsfiddle.net/doktormolle/c2pC3/
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