I have created one service and also added it in manifest. When I use timer to call this service periodically and in timer I have used location manager to get location of user contin. But there is error like that:
05-11 11:57:17.574: ERROR/AndroidRuntime(3305): java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()
Tell me where is problem in my code.
code is here
package com.collabera.labs.sai;
import java.util.Timer;
import java.util.TimerTask;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.IBinder;
import android.util.Log;
import android.widget.Toast;
public class SimpleService extends Service {
Timer mytimer;
@Override
public IBinder onBind(Intent arg0) {
// TODO Auto-generated method stub
return null;
}
@Override
public void onCreate() {
super.onCreate();
Toast.makeText(this,"Service created ...", Toast.LENGTH_LONG).show();
mytimer = new Timer();
mytimer.schedule(new TimerTask() {
@Override
public void run() {
// TODO Auto-generated method stub
//getdata();
LocationManager mlocManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
LocationListener mlocListener = new MyLocationListener();
mlocManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0,
mlocListener);
}
},0,1000);
}
@Override
public void onDestroy() {
super.onDestroy();
Toast.makeText(this, "Service destroyed ...", Toast.LENGTH_LONG).show();
}
public void getdata()
{
}
public class MyLocationListener implements LocationListener {
@Override
public void onLocationChanged(Location loc) {
loc.getLatitude();
loc开发者_高级运维.getLongitude();
String Text = "My current location is: " + "Latitude = "
+ loc.getLatitude() + "Longitude = " + loc.getLongitude();
/*Toast.makeText(getApplicationContext(), Text, Toast.LENGTH_SHORT)
.show();*/
Log.d("TAG", "Starting..");
}
@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) {
}
}/* End of Class MyLocationListener */
}
Toast.makeText(this, "Service destroyed ...", Toast.LENGTH_LONG).show();
You can't modify UI from the non-UI thread. Services are never executed on the UI thread. Log this instead of making a Toast.
精彩评论