android GPS定位代码

2022-01-26 06:22:47

public class MainActivity extends Activity {

    private LocationManager lm;

    private MyLocationListener listener;
 
    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        lm = (LocationManager) getSystemService(LOCATION_SERVICE);

        listener = new MyLocationListener();

        lm.requestLocationUpdates("gps", 0, 0, listener);

    }

    public class MyLocationListener implements LocationListener{
 
        //当位置发生变化的时候

        @Override

        public void onLocationChanged(Location location) {

            String  longitude = "经度："+location.getLongitude()+"\n";

            String  latitude = "纬度："+location.getLatitude()+"\n";

            String accuracy = "精确度："+location.getAccuracy()+"\n";

            TextView textView = new TextView(MainActivity.this);

            textView.setText(longitude+latitude+accuracy);

            setContentView(textView);

        }
 
        //某个位置提供者的状态发生变化的时候 打开--》关闭 ；关闭--》开启

        @Override

        public void onStatusChanged(String provider, int status, Bundle extras) {

        }
 
        //某个位置提供者可用

        @Override

        public void onProviderEnabled(String provider) {

        }

        //某个位置提供者不可用
 
        @Override

        public void onProviderDisabled(String provider) {

        }

    }

    @Override

    protected void onDestroy() {

        super.onDestroy();

        lm.removeUpdates(listener);

        listener = null;

    }
 
}

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