在以下代码中，我使用Google Maps API V3在地图上添加了自定义控件。
<html>
<head>
<title>Simple Map</title>
<meta name="viewport" content="initial-scale=1.0">
<meta charset="utf-8">
<style>
/* Always set the map height explicitly to define the size of the div
* element that contains the map. */
#map {
height: 100%;
}
/* Optional: Makes the sample page fill the window. */
html, body {
height: 100%;
margin: 0;
padding: 0;
}
</style>
</head>
<body>
<div id="map"></div>
<script>
var map;
function initMap() {
var myOptions = {
zoom: 8,
center: {lat: -34.397, lng: 150.644},
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById("map"), myOptions);
//### Add a button on Google Maps ...
var controlMarkerUI = document.createElement('DIV');
controlMarkerUI.style.cursor = 'pointer';
controlMarkerUI.style.backgroundColor = 'blue';
controlMarkerUI.style.height = '28px';
controlMarkerUI.style.width = '25px';
controlMarkerUI.style.top = '11px';
controlMarkerUI.style.left = '120px';
controlMarkerUI.title = 'Click to get the coordinates';
map.controls[google.maps.ControlPosition.LEFT_TOP].push(controlMarkerUI);
}
</script>
<script src="https://maps.googleapis.com/maps/api/js?key=<PUT_YOUR_KEY_HERE>&callback=initMap"
async defer></script>
</body>
</html>
现在，我想在自定义控件上关联一个函数，只需在用户单击地图时返回单击坐标即可。
我可以这样做（无需将功能关联到customcontrol ...）
google.maps.event.addListener(map, 'click', function (e) {
alert("Latitude: " + e.latLng.lat() + "\r\nLongitude: " + e.latLng.lng());
});
但我想点击我的自定义控件来启用/停用此功能。
建议/例子？
最佳答案
<html>
<head>
<title>Simple Map</title>
<meta name="viewport" content="initial-scale=1.0">
<meta charset="utf-8">
<style>
/* Always set the map height explicitly to define the size of the div
* element that contains the map. */
#map {
height: 70%;
}
/* Optional: Makes the sample page fill the window. */
html, body {
height: 100%;
margin: 0;
padding: 0;
}
</style>
</head>
<body>
<div id="map"></div>
<button id="start">Start</button>
<button id="clearClick">Clear</button>
<script>
var map;
var listener1;
function initMap() {
var myOptions = {
zoom: 8,
center: {lat: -34.397, lng: 150.644},
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById("map"), myOptions);
//### Add a button on Google Maps ...
var controlMarkerUI = document.createElement('DIV');
controlMarkerUI.style.cursor = 'pointer';
controlMarkerUI.style.backgroundColor = 'blue';
controlMarkerUI.style.height = '28px';
controlMarkerUI.style.width = '25px';
controlMarkerUI.style.top = '11px';
controlMarkerUI.style.left = '120px';
controlMarkerUI.title = 'Click to get the coordinates';
listener1= google.maps.event.addListener(map, 'click', function
(e) {
alert("Latitude: " + e.latLng.lat() + "\r\nLongitude: " + e.latLng.lng());
});
document.getElementById("clearClick").onclick = function(){
google.maps.event.removeListener(listener1);
}
document.getElementById("start").onclick = function(){
listener1= google.maps.event.addListener(map, 'click', function
(e) {
alert("Latitude: " + e.latLng.lat() + "\r\nLongitude: " + e.latLng.lng());
});
}
map.controls[google.maps.ControlPosition.LEFT_TOP].push(controlMarkerUI);
}
</script>
<script>
</script>
<script src="https://maps.googleapis.com/maps/api/js?key=&callback=initMap"
async defer></script>
</body>
</html>
有关以下链接的更多参考
https://developers.google.com/maps/documentation/javascript/events
关于javascript - 如何将功能与Google Maps API中的自定义控件相关联？，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/44573770/