如何知道用户是否更改了缩放比例(Google Maps V3) [英] How to know if the user change zoom (Google Maps V3)

问题描述

我正在使用Google Maps和Angularjs开发一个应用程序.我有这段代码可以控制缩放比例是否更改

I'm developing an app with Google Maps and Angularjs. I have this code to control whether the zoom is changed

google.maps.event.addListener(map, 'zoom_changed', function(){

  });

问题是，仅在用户更改缩放时才需要执行此事件.我的代码中还有一个fitBounds()，它也可以更改缩放比例.

The question is, I need to execute this event only when the user changes the zoom. I have in my code a fitBounds() that change the zoom as well.

var latlngbounds = new google.maps.LatLngBounds();
  for (var i = 0; i < latlng.length; i++) {
    latlngbounds.extend(latlng[i]);
  }

  map.fitBounds(latlngbounds);

是否可以区分用户操作和不区分用户操作?

Is there an option to distinguish between user action and not?

推荐答案

好，我找到了方法

google.maps.event.addListenerOnce(map, 'mousemove', function(){

    google.maps.event.addListener(map, 'zoom_changed', function(){

    });

  });

首先，它会检测鼠标是否移动，然后检测缩放是否改变并且可以正常工作！

First, it detects if the mouse moves and then if the zoom if changed and works properly!

这篇关于如何知道用户是否更改了缩放比例(Google Maps V3)的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！