Google Maps API v3：如何删除事件监听器？ [英] Google Maps API v3: How to remove an Event Listener?

问题描述

如何在 Google地图API中删除bounds_changed事件侦听器v3 ？

  google.maps.event.removeListener（_ ??? _）; 
  

解决方案

通常，您可以在Google地图中找到这些问题的答案API文档。

正如Andrew所说，addListener返回一个句柄，稍后您可以使用它来删除该监听器。这是因为一个事件可能有很多监听器，并且要删除它们，您必须保存对每个附加监听器的引用。

还有一个函数，它可以删除所有监听器同时：

  clearListeners（instance：Object，eventName：string）; 
 //在你的情况下：
 google.maps.event.clearListeners（map，'bounds_changed'）; 
  

以下是Google Maps API参考资料，您可以在这里参阅它。

How do I remove the 'bounds_changed' Event listener in Google Maps API v3?

google.maps.event.removeListener(_???_);    

解决方案

Usually you can find answers to such questions in Google Maps API documentation.

As Andrew said, addListener returns a handle which you can use later to remove the listener. That's because a single event can have many listeners and to remove them you must save a reference to each of attached listeners.

There's also a function which removes all of the listeners at the same time:

clearListeners(instance:Object, eventName:string);
//In your case:
google.maps.event.clearListeners(map, 'bounds_changed');

Here's the Google Maps API reference where you can read about it.

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