Android - 如何获取当前位置（经度和纬度）？

I am using the following code to get the current location namely (latitude and longitude), but I am not getting current location (latitude and longitude).

我使用以下代码来获取当前位置（纬度和经度），但我没有得到当前位置（经度和纬度）。

Anyone knows why?

谁知道为什么？

package com.ram.currentlocation;

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

public class Location_Gps extends Activity
{

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.main);

      /* Use the LocationManager class to obtain GPS locations */
      LocationManager mlocManager = (LocationManager)getSystemService(Context.LOCATION_SERVICE);

      LocationListener mlocListener = new MyLocationListener();
      mlocManager.requestLocationUpdates( LocationManager.GPS_PROVIDER, 0, 0, mlocListener);
    }

    /* Class My Location Listener */
    public class MyLocationListener implements LocationListener
    {

      @Override
      public void onLocationChanged(Location loc)
      {

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

        String Text = "My current location is: " +
        "Latitud = " + loc.getLatitude() +
        "Longitud = " + loc.getLongitude();

        Toast.makeText( getApplicationContext(), Text, Toast.LENGTH_SHORT).show();
      }

      @Override
      public void onProviderDisabled(String provider)
      {
        Toast.makeText( getApplicationContext(), "Gps Disabled", Toast.LENGTH_SHORT ).show();
      }

      @Override
      public void onProviderEnabled(String provider)
      {
        Toast.makeText( getApplicationContext(), "Gps Enabled", Toast.LENGTH_SHORT).show();
      }

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

      }
    }
}

P.S.: I am using the following permissions in the manifest file:

P.S。：我在清单文件中使用以下权限：

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

4 个解决方案

#1

You have a mistake in your manifest file. Correct one is:

您的清单文件中有错误。正确的是：

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

#2

You have to send location fix to emulator,as emulator is software you need to provide with location fix.

您必须将位置修复程序发送到模拟器，因为模拟器是您需要提供的位置修复软件。

If you are using eclipse go to

如果你正在使用eclipse去

Window -> Show view -> Other

窗口 - >显示视图 - >其他

Select Android tab and search for emulator control.
After u see emulator control window navigate to location controls.
As u see in below pic

选择Android选项卡并搜索模拟器控件。在您看到模拟器控制窗口后导航到位置控件。正如你在下面的图片中所见

After you have sent loc fix you can use

发送loc修复后，您可以使用

Location loc = lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);

Where lm is LocationManager object so 90% of work is done ;)

其中lm是LocationManager对象，因此完成了90％的工作;）

Cheers!

干杯!

#3

In your android manifest did you set the permissions?

你的Android清单中你设置了权限吗？

android.permission.ACCESS_FINE_LOCATION

As far as only getting (0,0) co-ords you're probably using the emulator. If you're using eclipse go to the emulator control and at the bottom you can send the fake co-ords to the device

只有得到（0,0）co-ords你可能正在使用模拟器。如果您正在使用eclipse，请转到模拟器控件，在底部您可以将假的co-ords发送到设备

#4

You are not using the correct permission. The correct one is:

您没有使用正确的权限。正确的是：

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

By the way, your demand can only be fulfilled by:

顺便说一下，您的需求只能通过以下方式满足：

<using-permission android:name="ACCESS_FINE_LOCATION" />

So there is no need for ACCESS_COARSE_LOCATION

所以不需要ACCESS_COARSE_LOCATION