private double lat=-1;//緯度
  private double lon=-1;//經(jīng)度
 public class MainActivity extends ActivityBas{
    protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     setContentView(R.layout.activity_main);
  ArcGISRuntime.setClientId("1eFHW78avlnRUPHm");//取消arcgis默認(rèn)圖標(biāo)
  dingweilocation()；
  mapView.centerAt(lat, lon, true);//設(shè)置定位中心點(diǎn)
  mapView.setScale(1105828.1803422251);//設(shè)置顯示比例
  }

private void dingweilocation() {
    //定位的方法
  LocationDisplayManager locationDisplayManager = mapView.getLocationDisplayManager();
  locationDisplayManager.setLocationListener(new LocationListener() {
    @Override
    public void onLocationChanged(Location location) {
      
      String bdlat=location.getLatitude()+""; 
      String bdlon=location.getLongitude()+"";
      if (bdlat.indexOf("E")==-1|bdlon.indexOf("E")==-1){
      //這里做個判斷是因?yàn)?，可能因?yàn)間ps信號問題，定位出來的經(jīng)緯度不正常。
        Log.i("定位",lat+"?"+lon);
        lat = location.getLatitude();//緯度
        lon = location.getLongitude();//經(jīng)度
      }
    }

    @Override
    public void onStatusChanged(String s, int i, Bundle bundle) {
    }

    @Override
    public void onProviderEnabled(String s) {
    }

    @Override
    public void onProviderDisabled(String s) {
    }
  });
  locationDisplayManager.start();
}
 }