我有一台设备没有GPS模块。在Android中有没有不使用GPS模块获取经纬度值的方法。
嘿,给我踩的人能解释一下这个问题有什么问题吗?如果你有答案,请回答问题,否则请尝试理解问题。
我有一台设备没有GPS模块。在Android中有没有不使用GPS模块获取经纬度值的方法。
嘿,给我踩的人能解释一下这个问题有什么问题吗?如果你有答案,请回答问题,否则请尝试理解问题。
LocationManager lm = (LocationManager) GlobalApplication
.getAppContext().getSystemService(Context.LOCATION_SERVICE);
Location location = lm
.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
if(location != null){
double latitude = location.getLatitude();
double longitude = location.getLongitude();
}
import java.util.Timer;
import java.util.TimerTask;
import android.content.Context;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
public class MyLocation {
Timer timer1;
LocationManager lm;
LocationResult locationResult;
boolean gps_enabled=false;
boolean network_enabled=false;
public boolean getLocation(Context context, LocationResult result)
{
//I use LocationResult callback class to pass location value from MyLocation to user code.
locationResult=result;
if(lm==null)
lm = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
//exceptions will be thrown if provider is not permitted.
try
{
gps_enabled=lm.isProviderEnabled(LocationManager.GPS_PROVIDER);
}
catch(Exception ex)
{
ex.printStackTrace();
}
try
{
network_enabled=lm.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
}
catch(Exception ex)
{
ex.printStackTrace();
}
//don't start listeners if no provider is enabled
if(!gps_enabled && !network_enabled)
return false;
if(gps_enabled)
lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListenerGps);
if(network_enabled)
lm.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, locationListenerNetwork);
timer1=new Timer();
timer1.schedule(new GetLastLocation(), 20000);
return true;
}
LocationListener locationListenerGps = new LocationListener()
{
public void onLocationChanged(Location location)
{
timer1.cancel();
locationResult.gotLocation(location);
// lm.removeUpdates(this);
//lm.removeUpdates(locationListenerNetwork);
}
public void onProviderDisabled(String provider) {}
public void onProviderEnabled(String provider) {}
public void onStatusChanged(String provider, int status, Bundle extras) {}
};
LocationListener locationListenerNetwork = new LocationListener()
{
public void onLocationChanged(Location location)
{
timer1.cancel();
locationResult.gotLocation(location);
// lm.removeUpdates(this);
// lm.removeUpdates(locationListenerGps);
}
public void onProviderDisabled(String provider) {}
public void onProviderEnabled(String provider) {}
public void onStatusChanged(String provider, int status, Bundle extras) {}
};
class GetLastLocation extends TimerTask
{
@Override
public void run() {
//lm.removeUpdates(locationListenerGps);
//lm.removeUpdates(locationListenerNetwork);
Location net_loc=null, gps_loc=null;
if(gps_enabled)
gps_loc=lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if(network_enabled)
net_loc=lm.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
//if there are both values use the latest one
if(gps_loc!=null && net_loc!=null){
if(gps_loc.getTime()>net_loc.getTime())
locationResult.gotLocation(gps_loc);
else
locationResult.gotLocation(net_loc);
return;
}
if(gps_loc!=null){
locationResult.gotLocation(gps_loc);
return;
}
if(net_loc!=null){
locationResult.gotLocation(net_loc);
return;
}
locationResult.gotLocation(null);
}
}
public static abstract class LocationResult
{
public abstract void gotLocation(Location location);
}
}
现在,在您的活动中,您可以像以下代码一样查找位置:
public static Location loc;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.splash_layout);
// to Find the Location
LocationResult locationResult = new LocationResult(){
@Override
public void gotLocation(final Location location){
loc=location;
System.out.println("Latitude: "+loc.getLatitude());
System.out.println("Longitude: "+loc.getLongitude());
}
};
MyLocation myLocation = new MyLocation();
myLocation.getLocation(SplashActivity.this, locationResult);
}
}
使用上述代码,您无需在设备上打开GPS。它会自动检查最佳可用的位置管理器并基于其找到位置。
还需要在AndroidManifest.xml文件中添加一些权限。
希望这能帮助您。
Location location =myManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
latPoint=location.getLatitude();
lngPoint=location.getLongitude();
希望这能帮到你。在这里,我们使用网络提供商获取纬度和经度,而不是使用GPS。这正是你想要的。