Javascript Bing地图的信息框

Javascript Bing地图的信息框,javascript,web-applications,bing-maps,Javascript,Web Applications,Bing Maps,我目前正在使用bing地图应用程序,当用户点击pin时,我似乎无法显示信息框。我一直在关注SDK,它应该几乎完全相同。以下是我所拥有的: // *********************************** // Function creates a single pin // and returns a reference to the pin function createMapPin(latLong, sName) { var pinImg = "imagespins/G

我目前正在使用bing地图应用程序,当用户点击pin时,我似乎无法显示信息框。我一直在关注SDK,它应该几乎完全相同。以下是我所拥有的:

// ***********************************
// Function creates a single pin
// and returns a reference to the pin

function createMapPin(latLong, sName) {
    var pinImg = "imagespins/Good.png";


var pin = new Microsoft.Maps.Pushpin(latLong, {
    icon: pinImg,
    anchor: new Microsoft.Maps.Point(8, 8),
    draggable: true,
    width: 48,
    height: 48
});

pin.title = sName;


pinInfobox = new Microsoft.Maps.Infobox(pin.getLocation(),
            { title: 'My Pushpin',
                description: 'This pushpin is located at (0,0).',
                visible: false,
                offset: new Microsoft.Maps.Point(0, 15)
            });



// Add handlers for the pushpin events
   Microsoft.Maps.Events.addHandler(pin, 'click', displayInfobox);
// Hide the infobox when the map is moved.
Microsoft.Maps.Events.addHandler(map, 'viewchange', hideInfobox);

map.entities.push(pin);
map.entities.push(pinInfobox);

    return pin;
}

function displayInfobox(e) {
    pinInfobox.setOptions({ visible: true });
}


function hideInfobox(e) {
    pinInfobox.setOptions({ visible: false });
}
pin成功创建并添加到地图中,当用户单击pin时,它会进入dispayinfox方法,但messagebox似乎没有出现


任何建议都非常感谢。谢谢

只要您只调用
createMapPin()
一次,您的代码就可以工作,我已经尝试过了。但是从您的代码判断,您的意图是多次调用
createMapPin()
,这将导致
infobox
停止您所认为的行为。原因是这一行:

pinInfobox = new Microsoft.Maps.Infobox(pin.getLocation(),
            { title: 'My Pushpin',
                description: 'This pushpin is located at (0,0).',
                visible: false,
                offset: new Microsoft.Maps.Point(0, 15)
            });
由于您没有通过
var
关键字将
pinInfobox
声明为局部变量,因此隐式地将其声明为全局变量。我不认为这是您的意图,因为只要您再次调用
createMapPin()
pinInfobox
,因为它是一个全局变量,就会被覆盖。因此,实际上,即使您一直在创建新的信息框,它也只有一个实例,并且它一直在获得指定的新值。所以,如果你点击一个图钉,一个信息框可能会在屏幕外的某个地方弹出,而你看不到它。我相信您的目的是让每个图钉都有一个信息框?为此,需要将信息框声明为局部变量,如下所示:

var pinInfobox = new Microsoft.Maps.Infobox(pin.getLocation(),
        { title: 'My Pushpin',
            description: 'This pushpin is located at (0,0).',
            visible: false,
            offset: new Microsoft.Maps.Point(0, 15)
        });
您还需要修改事件处理程序,以便与infobox对象的本地版本交互,而不仅仅是与单个全局变量交互。最简单的方法是在
createMapPin()
函数的作用域中将事件处理程序声明为匿名函数,并使用函数绑定覆盖此关键字的含义:

Microsoft.Maps.Events.addHandler(pin, 'click', function (e) {
    this.setOptions({ visible: true });
} .bind(pinInfobox));
Microsoft.Maps.Events.addHandler(map, 'viewchange', function(e) {
    this.setOptions({ visible: false });
}.bind(pinInfobox));
下面是您的更新代码:

function createMapPin(latLong, sName) {
    var pinImg = "imagespins/Good.png";

    var pin = new Microsoft.Maps.Pushpin(latLong, {
        icon: pinImg,
        anchor: new Microsoft.Maps.Point(8, 8),
        draggable: true,
        width: 48,
        height: 48
    });

    pin.title = sName;

    var pinInfobox = new Microsoft.Maps.Infobox(pin.getLocation(),
        {
            title: 'My Pushpin',
            description: 'This pushpin is located at (0,0).',
            visible: false,
            offset: new Microsoft.Maps.Point(0, 15)
        });

    // Add handlers for the pushpin events
    Microsoft.Maps.Events.addHandler(pin, 'click', function(e) {
        this.setOptions({ visible: true });
    }.bind(pinInfobox));
    // Hide the infobox when the map is moved.
    Microsoft.Maps.Events.addHandler(map, 'viewchange', function(e) {
        this.setOptions({ visible: false });
    }.bind(pinInfobox));
    map.entities.push(pin);
    map.entities.push(pinInfobox);
    return pin;
}