android 获取经纬度

android 定位的两种方式：GPS_PROVIDER and NETWORK_PROVIDER

定位的可以借助LocationManager来实现

MainActivity代码

 static final String TAG = "MainActivity";


    private TextView locationTV;
    private LocationManager locationManager;
    private String provider;

    ArrayList<ContactModel> dataList = new ArrayList<ContactModel>();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
//        initView();


        locationTV = (TextView) findViewById(R.id.locaiton_tv);

        locationManager = (LocationManager) getSystemService(this.LOCATION_SERVICE);
        // 获取所有可用的位置提供器
        List<String> providerList = locationManager.getProviders(true);
        if (providerList.contains(LocationManager.GPS_PROVIDER)) {
            provider = LocationManager.GPS_PROVIDER;
        } else if (providerList.contains(LocationManager.NETWORK_PROVIDER)) {
            provider = LocationManager.NETWORK_PROVIDER;
        } else {
            // 当没有可用的位置提供器时，弹出Toast提示用户
            Toast.makeText(this, "No location provider to use", Toast.LENGTH_SHORT).show();
            return;
        }
        Location location = locationManager.getLastKnownLocation(provider);
        if (location != null) {
            // 显示当前设备的位置信息
            showLocation(location);
        }
        if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            // TODO: Consider calling
            //    ActivityCompat#requestPermissions
            // here to request the missing permissions, and then overriding
            //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
            //                                          int[] grantResults)
            // to handle the case where the user grants the permission. See the documentation
            // for ActivityCompat#requestPermissions for more details.
            return;
        }
        locationManager.requestLocationUpdates(provider, 5000, 1, locationListener);






    }
    private void showLocation(Location location) {
        String currentPosition = "latitude is " + location.getLatitude() + "\n"+ "longitude is " + location.getLongitude();
        locationTV.setText(currentPosition);
    }





    @Override
    protected void onDestroy() {
        super.onDestroy();

        if (locationManager != null) {

            if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
                // TODO: Consider calling
                //    ActivityCompat#requestPermissions
                // here to request the missing permissions, and then overriding
                //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
                //                                          int[] grantResults)
                // to handle the case where the user grants the permission. See the documentation
                // for ActivityCompat#requestPermissions for more details.
                return;
            }


            // 关闭程序时将监听器移除
            locationManager.removeUpdates(locationListener);
        }
    }

    LocationListener locationListener = new LocationListener() {
        @Override
        public void onLocationChanged(Location location) {

            Toast.makeText(MainActivity.this,"onLocationChanged",Toast.LENGTH_SHORT).show();
        }

        @Override
        public void onStatusChanged(String s, int i, Bundle bundle) {
            Toast.makeText(MainActivity.this,"onStatusChanged",Toast.LENGTH_SHORT).show();
        }

        @Override
        public void onProviderEnabled(String s) {
            Toast.makeText(MainActivity.this,"onProviderEnabled",Toast.LENGTH_SHORT).show();
        }

        @Override
        public void onProviderDisabled(String s) {
            Toast.makeText(MainActivity.this,"onProviderDisabled",Toast.LENGTH_SHORT).show();
        }
    };