设备-地理定位

1、地理定位

navigator.geolocation.getCurrentPosition(function(where){
   alert(where.coords.latitude + "," + where.coords.longitude);
})

var geo = navigation.geolocation,
      lcn_success = function(where){},
      lcn_error = function(){};
geo.getCurrentPosition(lcn_success ,lcn_error );

定位操作时刻发生watchPosition：

 navigator.geolocation.watchPosition(function(where){
     alert(where.coords.latitude + "," + where.coords.longitude);
 })

取消查看用户的定位信息，需要使用具有独立ID的clearWatch（）类函数：

var geo = navigation.geolocation,
     watchID = geo.watchPosition(),
     endWatch = document.getElementById("stop");
endWatch.addEventListener('click',function(){
     geo.clearWatch(watchID);
},false)