摘要：
1.一开始老是location老是获取不到，像这样LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE); Location location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);但是把LocationManager.GPS_PROVIDER换成NETWORK_PROVIDER就不为Null。2.然后看到可以用一个Criteria作为规则去搜寻 1... 阅读全文