package com.example.simranjeet.myapplication43;
import android.Manifest;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Build;
import android.os.Bundle;
import android.provider.Settings;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.widget.Toast;
public class GpsLocation extends AppCompatActivity {
Context context;
private LocationManager locationManager;
private LocationListener listener;
void findloc(){
locationManager = (LocationManager)getSystemService(LOCATION_SERVICE);
listener = new LocationListener() {
@Override
public void onLocationChanged(Location location) {
}
@Override
public void onStatusChanged(String s, int i, Bundle bundle) {
}
@Override
public void onProviderEnabled(String s) {
}
@Override
public void onProviderDisabled(String s) {
Intent i = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
startActivity(i);
}
};
configure_button();
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
switch (requestCode){
case 10:
configure_button();
break;
default:
break;
}
}
void configure_button(){
// first check for permissions
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
requestPermissions(new String[]{Manifest.permission.ACCESS_COARSE_LOCATION,Manifest.permission.ACCESS_FINE_LOCATION,Manifest.permission.INTERNET}
,10);
}
return;
}
locationManager.requestLocationUpdates("gps", 500, 0, listener);
// locationManager.requestSingleUpdate(LocationManager.GPS_PROVIDER,listener,null);
Location location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
Toast.makeText(context,"location finded",Toast.LENGTH_LONG ).show();
locationManager.removeUpdates(listener);
// Location lastKnownLocation = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
}
}
I'm calling findloc
method from onCreate
method as
s = new GpsLocation();
s.findloc();
every time i call this function it crashed but it is working well when it is not placed in seprate class. i have added every permission and it is working pretty good when it is under onCreate method can anybody tell me why it is abruptly crashing.
CRASH LOG//i am using emulator
Process: com.example.simranjeet.myapplication43, PID: 12956 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.simranjeet.myapplication43/com.example.simranjeet.myapplication43.MainActivity}: java.lang.IllegalStateException: System services not available to Activities before onCreate() at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) at android.app.ActivityThread.-wrap11(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5417) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) Caused by: java.lang.IllegalStateException: System services not available to Activities before onCreate() at android.app.Activity.getSystemService(Activity.java:5253) at com.example.simranjeet.myapplication43.GpsLocation.findloc(GpsLocation.java:25) at com.example.simranjeet.myapplication43.MainActivity.onCreate(MainActivity.java:36) at android.app.Activity.performCreate(Activity.java:6237) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) at android.app.ActivityThread.-wrap11(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5417) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 07-20 13:01:03.413 3353-12581/com.google.android.gms.persistent E/NetworkScheduler: Unrecognised action provided: android.intent.action.PACKAGE_REPLACED
Try to use.
locationManager = (LocationManager)getApplicationContext().getSystemService(LOCATION_SERVICE);
instead
locationManager = (LocationManager)getSystemService(LOCATION_SERVICE);