如何获取android移动设备的当前位置经纬度？

Question

我已经实现了获取当前位置纬度经度的示例应用程序。如果我在模拟器中午餐我的应用程序并且我在 Eclipse 时从 Emulator Controls 发送纬度和经度，那么我将从模拟器控件获取当前位置纬度和经度。如果我在真实设备中使用相同的应用程序，然后我无法获得当前位置的纬度和经度

我已经实现了获取当前位置经纬度的代码如下：

      LocationManager mlocManager = (LocationManager)getSystemService(Context.LOCATION_SERVICE);

  LocationListener mlocListener = new MyLocationListener();
  mlocManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 11, 11, mlocListener);


   public class MyLocationListener implements LocationListener
{

  @Override
  public void onLocationChanged(Location loc)
  {

    loc.getLatitude();
    loc.getLongitude();

   Log.v("11111","Latitude :"+loc.getLatitude());
   Log.v("22222","Longitude :"+ loc.getLongitude());

    }

}

从上面的代码中，我没有在真正的 android 设备中获得当前位置的纬度和经度。

如何获取真实设备的当前位置经纬度？

请任何人帮助我

Answer 1

GPS_PROVIDER 在绑定位置不起作用。因此，如果 gps_provider 已启用但您获得空位​​置，则可以将提供者从 gps 替换为 NETWORK_PROVIDER。

Answer 2

prasad 试试这个代码 ..通过使用这个我成功地得到了 lat long

        private Location location = null;
        private LocationManager locationManager = null;
    locationManager = (LocationManager) context.getSystemService                              (Context.LOCATION_SERVICE);

    Criteria locationCritera = new Criteria();
    locationCritera.setAccuracy(Criteria.ACCURACY_FINE);
    locationCritera.setAltitudeRequired(false);
    locationCritera.setBearingRequired(false);
    locationCritera.setCostAllowed(true);
    locationCritera.setPowerRequirement(Criteria.NO_REQUIREMENT);

    String providerName = locationManager.getBestProvider(locationCritera,
            true);
    location = locationManager.getLastKnownLocation(providerName);
    locationListener = new MyLocationListener();

    locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0,
            0, locationListener);

    currentLocation = context.getSharedPreferences(PREFS_NAME, 0);
    editor = currentLocation.edit();
}
public String getCurrentLatitude() {
    try {
        if (!currentLocation.getString("currentLatitude", "")
                .equalsIgnoreCase(""))
            return currentLocation.getString("currentLatitude", "");
        else if (location.getLatitude() != 0.0)
            return Double.toString(location.getLatitude());
        else
            return "0.0";
    } catch (Exception e) {
        e.printStackTrace();
    }
    return "0.0";
}

public String getCurrentLongitude() {
    try {


        if (!currentLocation.getString("currentLongitude", "")
                .equalsIgnoreCase(""))
            return currentLocation.getString("currentLongitude", "");
        else if (location.getLongitude() != 0.0)
            return Double.toString(location.getLongitude());
        else
            return "0.0";
    } catch (Exception e) {
        e.printStackTrace();
    }
    return "0.0";
}

Answer 3

您是在模拟器还是设备上尝试。如果您在设备中尝试，那么您的设备必须靠近窗户或在开放的地方。

Answer 4

在您的 MyLocationListener 中覆盖这些方法。以便您可以跟踪您的 GPS 状态。看看能不能解决问题

public void onProviderDisabled(String provider)

        {

            Toast.makeText( getApplicationContext(),"Gps Disabled",

                    Toast.LENGTH_SHORT ).show();

        }

        public void onProviderEnabled(String provider)

        {

            Toast.makeText( getApplicationContext(),"Gps Enabled",Toast.LENGTH_SHORT).show();

        }

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

        {

        }

Answer 5

在真实设备上，您必须耐心等待卫星修复。这可能需要几分钟时间，即使在天空清晰的情况下也是如此。

如果要在外面进行测试，建议您在应用程序中添加一个简单的文本框，将其初始化为“尚无 GPS 修复”之类的内容，然后在定位时向其发送包含纬度/经度坐标的字符串变化。

Answer 6

也许这更清楚。如果可能的话，我稍后会将条件更改为更有效的内容

    double longitude = 0;
    double latitude = 0;

    LocationManager lm = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
    if (lm.getLastKnownLocation(LocationManager.GPS_PROVIDER) != null) {
        Location location = lm
                .getLastKnownLocation(LocationManager.GPS_PROVIDER);
        longitude = location.getLongitude();
        latitude = location.getLatitude();
    } else {
        Location location = lm
                .getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
        longitude = location.getLongitude();
        latitude = location.getLatitude();
    }

Answer 7

有两种类型的位置提供程序， GPS 位置提供商 网络位置提供者

package com.shir60bhushan.gpsLocation;

import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.widget.TextView;

import android.util.Log;

public class MainActivity extends Activity implements LocationListener{
protected LocationManager locationManager;
protected LocationListener locationListener;
protected Context context;
TextView txtLat;
String lat;
String provider;
protected String latitude,longitude; 
protected boolean gps_enabled,network_enabled;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
txtLat = (TextView) findViewById(R.id.textview1);

locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, this);
}
@Override
public void onLocationChanged(Location location) {
txtLat = (TextView) findViewById(R.id.textview1);
txtLat.setText("Latitude:" + location.getLatitude() + ", Longitude:" + location.getLongitude());
}

@Override
public void onProviderDisabled(String provider) {
Log.d("Latitude","disable");
}

@Override
public void onProviderEnabled(String provider) {
Log.d("Latitude","enable");
}

@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
Log.d("Latitude","status");
}
}

此链接可以帮助您了解更多信息 http://androidtutorials60.blogspot.in/2013/09/gps-current-location-of-device.html