我尝试过以下程序。它在eclipse中工作 - ＆gt;如果你通过ddms给出了经度和经度值意味着它在模拟器中显示为当前位置.... 但它没有检测到Android手机中的当前位置。
private class mylocationlistener implements LocationListener {
public void onLocationChanged(Location location) {
Date today = new Date();
Timestamp currentTimeStamp = new Timestamp(today.getTime());
LocationManager lm = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
LocationListener ll = new mylocationlistener();
boolean isGPS = lm.isProviderEnabled(LocationManager.GPS_PROVIDER);
if (isGPS){
lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, ll);
if (location != null) {
Log.d("LOCATION CHANGED", location.getLatitude() + "");
Log.d("LOCATION CHANGED", location.getLongitude() + "");
String str = "\n CurrentLocation: "+
"\n Latitude: "+ location.getLatitude() +
"\n Longitude: " + location.getLongitude() +
"\n Accuracy: " + location.getAccuracy() +
"\n CurrentTimeStamp "+ currentTimeStamp;
Toast.makeText(MainActivity.this,str,Toast.LENGTH_SHORT).show();
tv.append(str);
}
else
{
String s1="GPS activation in process";
Toast.makeText(MainActivity.this,s1,Toast.LENGTH_SHORT).show();
/*alert.setTitle("gps");
alert.setMessage("GPS activation in progress,\n Please click after few second.");
alert.setPositiveButton("OK", null);
alert.show();*/
}
}
else
{
String s2="Enable Gps";
Toast.makeText(MainActivity.this,s2,Toast.LENGTH_SHORT).show();
}
}
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}
}
答案 0 :(得分：1)
我为此做了一项服务。使用它可以轻松获得经度/纬度。
在项目中复制/粘贴此类。
package com.sample;
import com.sample.globalconstant;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.location.Location;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.IBinder;
import android.util.Log;
import android.widget.Toast;
public class MyServiceGPS extends Service
{
private static final String TAG = "BOOMBOOMTESTGPS";
private LocationManager mLocationManager = null;
private static final int LOCATION_INTERVAL = 1000;
private static final float LOCATION_DISTANCE = 10f;
private class LocationListener implements android.location.LocationListener{
Location mLastLocation;
public LocationListener(String provider)
{
Log.e(TAG, "LocationListener " + provider);
mLastLocation = new Location(provider);
}
public void onLocationChanged(Location location)
{
Log.e(TAG, "onLocationChanged: " + location.getLatitude() +"....."+ location.getLongitude());
globalconstant.lat = location.getLatitude();
globalconstant.lon = location.getLongitude();
Toast.makeText(getApplicationContext(), location.getLatitude() +"....."+ location.getLongitude(), 1000).show();
mLastLocation.set(location);
}
public void onProviderDisabled(String provider)
{
Log.e(TAG, "onProviderDisabled: " + provider);
}
public void onProviderEnabled(String provider)
{
Log.e(TAG, "onProviderEnabled: " + provider);
}
public void onStatusChanged(String provider, int status, Bundle extras)
{
Log.e(TAG, "onStatusChanged: " + provider);
}
}
LocationListener[] mLocationListeners = new LocationListener[] {
new LocationListener(LocationManager.GPS_PROVIDER),
new LocationListener(LocationManager.NETWORK_PROVIDER)
};
@Override
public IBinder onBind(Intent arg0)
{
return null;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId)
{
Log.e(TAG, "onStartCommand");
super.onStartCommand(intent, flags, startId);
return START_STICKY;
}
@Override
public void onCreate()
{
Log.e(TAG, "onCreate");
initializeLocationManager();
try {
mLocationManager.requestLocationUpdates(
LocationManager.NETWORK_PROVIDER, LOCATION_INTERVAL, LOCATION_DISTANCE,
mLocationListeners[1]);
} catch (java.lang.SecurityException ex) {
Log.i(TAG, "fail to request location update, ignore", ex);
} catch (IllegalArgumentException ex) {
Log.d(TAG, "network provider does not exist, " + ex.getMessage());
}
try {
mLocationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER, LOCATION_INTERVAL, LOCATION_DISTANCE,
mLocationListeners[0]);
} catch (java.lang.SecurityException ex) {
Log.i(TAG, "fail to request location update, ignore", ex);
} catch (IllegalArgumentException ex) {
Log.d(TAG, "gps provider does not exist " + ex.getMessage());
}
}
@Override
public void onDestroy()
{
Log.e(TAG, "onDestroy");
super.onDestroy();
if (mLocationManager != null) {
for (int i = 0; i < mLocationListeners.length; i++) {
try {
mLocationManager.removeUpdates(mLocationListeners[i]);
} catch (Exception ex) {
Log.i(TAG, "fail to remove location listners, ignore", ex);
}
}
}
}
private void initializeLocationManager() {
Log.e(TAG, "initializeLocationManager");
if (mLocationManager == null) {
mLocationManager = (LocationManager) getApplicationContext().getSystemService(Context.LOCATION_SERVICE);
}
}
}
如果要开始，请在“活动”中复制此代码：
startService(new Intent(this,MyServiceGPS.class));
创建一个类globalconstant：
public class globalconstant { public static double lat, lon; }
如果您希望项目中的当前纬度和经度仅写下此globalconstant.lat ,globalconstant.lon
添加uses-permission in Manifest
答案 1 :(得分：0)
如果您想覆盖当前位置，则最好使用默认方法而不是自定义覆盖..
这是当前位置的默认覆盖方法。
MyLocationOverlay mMyLocationOverlay = new MyLocationOverlay(getApplicationContext(),
Your_MapView);
mMyLocationOverlay.enableMyLocation();
mMyLocationOverlay.onProviderEnabled(LocationManager.NETWORK_PROVIDER);
mapOverlays = map_view.getOverlays();
你也可以使用GPS
mMyLocationOverlay.onProviderEnabled(LocationManager.GPS_PROVIDER);
答案 2 :(得分：0)
答案 3 :(得分：0)
您的Android手机可能没有获得GPS信号吗？如果GPS尚未有时间修复，locationManager.getLastKnownLocation将返回null。 Android不提供“现在给我位置”的方法。当GPS得到修复后，onLocationChanged（）将运行。如果模拟器没问题，那么设备存在一些问题。查看我的问题Not able to get Location by GPS : Android我遇到了类似的问题。我发生的事情是我在网络提供商处收到谷歌地图的位置。你确定通过GPS接收吗？