Google Map GetLocation返回字符串

Question

我有这段代码，

geocoder = new GClientGeocoder();
var state;

function addAddressToMap(response) {
  if (!response || response.Status.code != 200) {
    alert("Sorry, we were unable to geocode that address");
  } 
  else {
    place = response.Placemark[0];
    state = place.AddressDetails.Country.AdministrativeArea.AdministrativeAreaName;
  }
}

// showLocation() is called when you click on the Search button
// in the form.  It geocodes the address entered into the form
// and adds a marker to the map at that location.
function showLocation() {
  var address = "mutiara damansara";
  geocoder.getLocations(address, addAddressToMap);

  return state;
}

好的，更新了代码。我尝试实例化showLocation()，但变量state未由addAddressToMap函数更新。

由于

Answer 1

您的更新代码有助于更好地了解图片。

看起来addAddressToMap()期待函数参数的响应变量。

当geocoder.getLocations(address,addAddressToMap)调用时，没有传递回复。

因此，第一个if语句!response为真，state仍未设置。

要修复，您需要在致电addAddressToMap()时传递内容。看起来某些东西是脚本中其他地方的XMLHttpRequest（Ajax）对象。