api - geolocation.watchposition 不起作用，请帮助我

Question

我输入了 geolocation.watchPosition API，但是当我在浏览器上运行它时，地图根本不显示。谁能告诉我如何解决这个问题？

<script>

if (navigator.geolocation)
{
    function showPositionOnMap(position)
    {
        var point = new google.maps.LatLng(position.coords.latitude, 
        position.coords.longitude),

        myOptions = {
            zoom: 15,
            center: point,
            mapTypeId: google.maps.MapTypeId.ROADMAP
        },

        mapDiv = document.getElementById("mapDiv"),
        map = new google.maps.Map(mapDiv, myOptions),
                marker = new google.maps.Marker({
            position: point,
            map: map,
            title: "You are here"
            });
    }

    var timeoutVal = 10 * 1000 * 1000;
    navigator.geolocation.watchPosition(showPositionOnMap, errorMessage,
    {
        enableHighAccuracy: true, timeout: timeoutVal, maximumAge: 0 });
}

else
{
    alert("Geolocation is not supported by this browser");
}

</script>

Answer 1

使用现有errorMessage函数，此代码运行良好。也许，您的浏览器阻止了地理位置，因为您没有允许它。