的onclick（）獲取地理位置是不行的

Question

請告訴我問題：

如果 （我環繞navigator.geolocation.getCurrentPosition(initMap, onError);蒙山function triger()然後調用它像： <button id="btn" class="btn btn-default" onclick="triger()">）

然後

它什麼都不做！

其他

它的好！

這裏是我的代碼：

<script> 

    var map; 
    var infowindow; 
    var selecteditem="hospital"; 
    var radiusin=5000; 

    function triger() { 
     navigator.geolocation.getCurrentPosition(initMap, onError); 

} 

    function onError(error){ 
    alert("the code is " + error.code + ". \n" + "message: " + error.message); 
} 

    function initMap(position) { 

    selecteditem= $("#selector").val(); 
    radiusin= $("#radius").val();  
    alert(selecteditem+"in"+radiusin); 
    var longitude = position.coords.longitude; 
    var latitude = position.coords.latitude; 
    var latLong = new google.maps.LatLng(latitude, longitude); 
    var pyrmont = latLong;// {lat: -33.867, lng: 151.195}; 
    map = new google.maps.Map(document.getElementById('map'), { 
     center: pyrmont, 
     zoom: 14 
    }); 
    infowindow = new google.maps.InfoWindow(); 
    var service = new google.maps.places.PlacesService(map); 
    service.nearbySearch({ 
     location: pyrmont, 
     radius: radiusin, 
     type: selecteditem 
    }, callback); 
    } 
    function callback(results, status) { 
    if (status === google.maps.places.PlacesServiceStatus.OK) { 
     for (var i = 0; i < results.length; i++) { 
     createMarker(results[i]); 
     } 
    } 
    } 
    function createMarker(place) { 
    var placeLoc = place.geometry.location; 
    var marker = new google.maps.Marker({ 
     map: map, 
     position: place.geometry.location 
    }); 
    google.maps.event.addListener(marker, 'click', function() { 
     infowindow.setContent(place.name); 
     infowindow.open(map, this); 
    }); 
    } 
</script> 

和：

<div class="input-group-btn"> 
    <button id="btn" class="btn btn-default" onclick="triger()"> 
    <i class="glyphicon glyphicon-search"></i> 
    </button> 
</div> 

Answer 1

改變

selecteditem= $("#selector").val(); 

到：

$("#selector").change(function() { slecteditem= $(this).find("option:selected").val(); }