暂时禁用“viewchangeend”事件

Question

如何暂时禁用viewchangeend事件，使用setView方法更改视图并再次重新启用viewchangeend事件？

这里是什么，我现在做的轻型版本：

var mapEventsObjects = []; 

/* Remove map events */ 
for (var i = 0; i < mapEventsObjects.length; i++) { 
    Microsoft.Maps.Events.removeHandler(mapEventsObjects[i]); 
} 

/* Change the view */ 
map.setView({ 
    "zoom": zoom, 
    "center": new Microsoft.Maps.Location(lat, long) 
}); 

/* Add map events back */ 
var mapViewChangeEnd = Microsoft.Maps.Events.addHandler(map, "viewchangeend", function (e) { 
    console.log("viewChangeEnd Fired: ", e); 
}); 

mapEventsObjects.push(mapViewChangeEnd); 

我想到的是看到没有viewChangeEnd在控制台被解雇，但它似乎有不是一次，而是两次。

任何想法为什么它不工作？

Answer 1

您可以创建一个简单的布尔变量gobal。如果您想忽略viewchangeend事件，请将该变量设置为true。然后，在viewchangeend事件的事件处理程序中，可以执行简单检查，如果此变量为true，则将该变量设置为false并离开该函数。以下是您的代码的修改版本：

var mapEventsObjects = [], skipViewChangeEnd = false; 

//Add view change end event to map. 
var mapViewChangeEnd = Microsoft.Maps.Events.addHandler(map, "viewchangeend", function (e) { 
    //Check to see if you want to skip this event once. 
    if(skipViewChangeEnd){ 
     skipViewChangeEnd = false; 
     console.log("viewChangeEnd skipped"); 
    }else{ 
     //Your logic for handling this event 
     console.log("viewChangeEnd Fired: ", e); 
    } 
}); 

mapEventsObjects.push(mapViewChangeEnd); 

skipViewChangeEnd = true; 

/* Change the view */ 
map.setView({ 
    "zoom": zoom, 
    "center": new Microsoft.Maps.Location(lat, long) 
});