fitBounds和getZoom不是很好玩

时间:2011-01-25 12:55:01

标签: javascript google-maps-api-3

我有以下代码,我在初始化地图后几乎立即运行

function showAddress(address) {
    geocoder.geocode( { 'address': address}, function(results, status) {
      if (status == google.maps.GeocoderStatus.OK) {
        map.fitBounds(results[0].geometry.bounds);

        if (map.getZoom() < 12) {
            map.setZoom(12);
        }
      } else {
        alert("Geocode was not successful for the following reason: " + status);
      }
    });
  }

问题是缩放检查和设置不起作用。我已经检查并启动了地图,但map.getZoom()函数此时返回undefinted。

我有什么办法可以强迫它等到设置好配合并且缩放级别已知,这样我才能适当地控制缩放?

2 个答案:

答案 0 :(得分:3)

  // Define the Bounds Changed event handler to do a "once-only" zoom level check
  google.maps.event.addListener(map, 'bounds_changed', function() {
    InitialZoomCheck()
  });

geocoder.geocode( { 'address': address}, function(results, status) {
  if (status == google.maps.GeocoderStatus.OK) {
    map.fitBounds(results[0].geometry.bounds);




function InitialZoomCheck() {

  // Re-define the event handler so that this routine is called only once
  google.maps.event.addListener(map, 'bounds_changed', function() {
    document.posicion.z.value=map.getZoom()
  });

  if (map.getZoom() > 12) {
    map.setZoom (12);
  }
}

答案 1 :(得分:3)

我知道这是一个老问题,但我发现这个解决方案更优雅:

google.maps.event.addListenerOnce(map, 'bounds_changed', function() {
    if(map.getZoom() > 16) map.setZoom(16);
});
map.fitBounds(latlngbounds);