android GPS 获取位置

 使用GPS权限：

    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"></uses-permission>

Android 提供LocationManager和Location，可以方便的获得经纬度、海拔等位置。使用LocationManager来获得位置管理类，从而可以获得历史GPS信息以及位置变化的监听注册；使用Location来获得具体的位置信息。代码如下：

 

       locationm = (LocationManager) getSystemService(LOCATION_SERVICE);

       Criteria criteria = new Criteria();

       criteria.setAccuracy(Criteria.ACCURACY_FINE);

       criteria.setAltitudeRequired(false);

       criteria.setBearingRequired(false);

       criteria.setCostAllowed(true);

       criteria.setPowerRequirement(Criteria.POWER_LOW);

       String provider = locationm.getBestProvider(criteria, true);

 

       Location location = locationm.getLastKnownLocation(provider);

           //获得上次的记录

       gps_loc(location);

      

       LocationListener GPS_listener = new LocationListener() {

       //监听位置变化，实时获取位置信息

           @Override

           public void onStatusChanged(String provider, int status,

                  Bundle extras) {

              // TODO Auto-generated method stub

 

           }

 

           @Override

           public void onProviderEnabled(String provider) {

              // TODO Auto-generated method stub

 

           }

 

           @Override

           public void onProviderDisabled(String provider) {

              // TODO Auto-generated method stub

 

           }

 

           @Override

           public void onLocationChanged(Location location) {

              // TODO Auto-generated method stub

//位置发生改变时

              gps_loc(location);

           }

       };

       locationm.requestLocationUpdates(provider, 1000, 0, GPS_listener);

    }

 

    // 获得自己位置

    private void gps_loc(Location location) {

       if (location != null) {

           self_weidu = location.getLatitude();

           self_jindu = location.getLongitude();

       } else {

           self_weidu = 0;

           self_jindu = 0;

       }

    }