Question

如何临时禁用viewchangeend事件，使用setView方法更改视图并重新启用viewchangeend事件？

这是我现在正在做的更轻松的版本：

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 );

我希望在控制台中看不到 viewChangeEnd Fired ，但它不会出现一次而是两次。

知道为什么它不起作用？

Answer 1

您可以创建一个简单布尔值的gobal变量。如果要忽略viewchangeend事件，请将变量设置为true。然后在viewchangeend事件的事件处理程序中，您可以进行简单检查，如果此变量为true，则将变量设置为false并保留该函数。以下是代码的修改版本：

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 )
});

临时禁用“viewchangeend”事件

1 个答案: