触发点击传单标记-前端问题

Trigger click on leaflet marker(触发点击传单标记)

本文介绍了触发点击传单标记的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我在地图上有一堆传单标记.每个标记都保存在数组 markers 中.标记是动态创建的(在 ajax 调用期间).

I have a bunch of leaflet markers on the map. Each marker is held in array markers. The markers are created dynamically (during an ajax call).

var markers = [];
.
.
var marker = L.marker([mar.lat, mar.lng], {
  // ...build the marker...
}
marker._leaflet_id = mar.id; // give the marker an id corresponding to the id of its corresponding div
var myHoverIcon = L.icon({
  iconUrl: mar.imgUrl,
  iconSize: [40, 40],
  popupAnchor: [0, 0]
});
marker.on('click', function(e) {
  alert('Marker clicked!');
  marker.setIcon(myHoverIcon);
});
.
.
markers.push(marker);

每个标记都有一个对应于特定 div 的 id(存储在 div 上的 data-mess_id 中).计划是在点击提要中相应的 div 时更改标记的图标.

Each marker has an id corresponding to a particular div (stored in data-mess_id on the div). The plan is to change the marker's icon when its corresponding div in the feed is clicked on.

$('#feed').on('mouseover', '.message', function() {
  var cssid = $(this).attr('data-mess_id').toString();
  var baz = $.grep(markers, function(m) {
    return (m._leaflet_id == cssid);
  });
  baz[0].trigger('click');   // doesn't work 
  alert(baz[0].getLatLng()); // does work

  // this also does not work:
  var myHoverIcon = L.icon({
    iconUrl: baz[0].imgUrl,
    iconSize: [40, 40],
    popupAnchor: [0, 0]
  });
  baz[0].setIcon(myHoverIcon);

});

除了最后一点，一切都很好.我只是无法在标记上触发点击事件.我肯定有正确的标记，因为 baz[0].getLatLng() 正在工作.但是 baz[0].trigger('click') 不起作用.

It's all working fine except for the final bit. I just can't trigger a click event on the marker. I definitely have the correct marker because baz[0].getLatLng() is working. But baz[0].trigger('click') doesn't work.

我尝试动态创建一个新图标 (myHoverIcon) 但它不起作用.

I tried creating a new icon dynamically (myHoverIcon) but it doesn't work.

如何在标记上触发点击事件?

How do I trigger a click event on the marker?

还有其他方法可以更改标记图标吗?

Is there another way to change the marker icon?

推荐答案

要模拟鼠标点击，您可以使用 fire 方法(继承自 Evented.fire) 在标记上:

To emulate a mouse click, you can use the fire method (inherited from Evented.fire) on the marker :

marker.fire('click');

还有一个演示

var map = L.map('map').setView([0, 0], 12);

var icon = L.icon({
  iconUrl: 'http://leafletjs.com/examples/custom-icons/leaf-green.png'
});
var marker = L.marker([0, 0], {icon: icon})
  .addTo(map);
  
  
var myHoverIcon = L.icon({
  iconUrl: 'http://leafletjs.com/examples/custom-icons/leaf-red.png'
});
  
  
marker.on('click', function(e) {
  marker.setIcon(myHoverIcon);
});

document.querySelector('button').addEventListener('click', function() {
  marker.fire('click');
});

html, body {
  height: 100%;
  margin: 0;
}
#map {
  width: 100%;
  height: 100%;
}

button {position: absolute; left:10 px; top: 70px;}

<link rel="stylesheet" href="https://unpkg.com/leaflet@1.2.0/dist/leaflet.css" integrity="sha512-M2wvCLH6DSRazYeZRIm1JnYyh22purTM+FDB5CsyxtQJYeKq83arPe5wgbNmcFXGqiSH2XR8dT/fJISVA1r/zQ==" crossorigin=""/>

<script src="https://unpkg.com/leaflet@1.2.0/dist/leaflet.js" integrity="sha512-lInM/apFSqyy1o6s89K4iQUKg6ppXEgsVxT35HbzUupEVRh2Eu9Wdl4tHj7dZO0s1uvplcYGmt3498TtHq+log==" crossorigin=""></script>
   
<div id='map'></div>
<button>Click me</button>