Question

我有以下代码，它应该在更改多边形形状时触发警报。仅在形状更改两次后才会显示此警报。意思是，我必须在触发事件之前两次调整形状大小。

有什么可能导致这种行为的想法吗？

function drawListener(drawingManager) {
    var coord_listener = google.maps.event.addListener(drawingManager, 'polygoncomplete', function (polygon) {

        var coordinates = (polygon.getPath().getArray()); //get
        var bounds = new google.maps.LatLngBounds(); 
        var people = [];


        google.maps.event.addListener(polygon.getPath(), 'set_at', function () { //check to see if the item has been changed //THIS ONLY GETS CALLED AFTER POLYGON HAS BEEN CHANGED TWICE
            alert('changed');
        });
 });

Answer 1

我找到了答案：除了'set_at'

之外，我还必须使用'insert_at'

 google.maps.event.addListener(polygon.getPath(), 'set_at', function () { 
        alert('changed');
    });

 google.maps.event.addListener(polygon.getPath(), 'insert_at', function () {
        alert('also changed');
    });

感谢。

谷歌地图APIV3监听器set_at直到第二次才开始

1 个答案: