How can I use getSystemService in a non-activity class LocationManager

Question

I m having trouble offloading tasks from the main Activities OnCreate method onto another class to do the heavy lifting   When I try to call getSystemService from the non-Activity class an exception is thrown   Any help would be greatly appreciated     lmt java   package com atClass lmt  import android app Activity  import android os Bundle  import android widget TextView  import android location Location   public class lmt extends Activity        Override     public void onCreate Bundle savedInstanceState            super onCreate savedInstanceState           setContentView R layout main            fyl lfyl   new fyl            Location location   lfyl getLocation            String latLongString   lfyl updateWithNewLocation location            TextView myLocationText    TextView findViewById R id myLocationText           myLocationText setText  Your current position is  n    latLongString             fyl java  package com atClass lmt   import android app Activity  import android os Bundle  import android location Location  import android location LocationManager  import android os Bundle  import android widget TextView  import android content Context   public class fyl       public Location getLocation            LocationManager locationManager          String context   Context LOCATION SERVICE          locationManager    LocationManager getSystemService context            String provider   LocationManager GPS PROVIDER          Location location   locationManager getLastKnownLocation provider            return location             public String updateWithNewLocation Location location            String latLongString           if  location    null               double lat   location getLatitude                double lng   location getLongitude                latLongString    Lat     lat     nLong     lng           else              latLongString    No Location                      return latLongString

User · Answer

For some non-activity classes  like Worker  you re already given a Context object in the public constructor    Worker Context context  WorkerParameters workerParams    You can just use that  e g   save it to a private Context variable in the class  say  mContext   and then  for example  mContext getSystenService Context ACTIVITY SERVICE

User · Answer

I don t know if this will help  but I did this   LocationManager locationManager     LocationManager  context getSystemService context LOCATION SERVICE

User · Answer

You can go for this    getActivity   getSystemService Context CONNECTIVITY SERVICE

User · Answer

One way I have gotten around this is by create a static class for instances  I used it a lot in AS3 I has worked great for me in android development too   Config java  public final class Config       public static MyApp context   null      MyApp java  public class MyApp extends Activity        Override     public void onCreate Bundle savedInstanceState            super onCreate savedInstanceState            Config context   this                    You can then access the context or by using Config context  LocationManager locationManager  String context   Context LOCATION SERVICE  locationManager   Config context getSystemService context

User · Answer

You need to pass your context to your fyl class   One solution is make a constructor like this for your fyl class   public class fyl    Context mContext   public fyl Context mContext           this mContext   mContext       public Location getLocation            --        locationManager    LocationManager mContext getSystemService context           --        So in your activity class create the object of fyl in onCreate function like this   package com atClass lmt  import android app Activity  import android os Bundle  import android widget TextView  import android location Location   public class lmt extends Activity        Override     public void onCreate Bundle savedInstanceState            super onCreate savedInstanceState           setContentView R layout main            fyl lfyl   new fyl this     Here the context is passing           Location location   lfyl getLocation            String latLongString   lfyl updateWithNewLocation location            TextView myLocationText    TextView findViewById R id myLocationText           myLocationText setText  Your current position is  n    latLongString

User · Answer

Use this in Activity  private Context context   this            if Utils isInternetAvailable context   Utils showToast context   quot toast quot                  in Utils  public class Utils        public static boolean isInternetAvailable Context context            ConnectivityManager cm    ConnectivityManager  context getSystemService Context CONNECTIVITY SERVICE           return cm getActiveNetworkInfo      null  amp  amp  cm getActiveNetworkInfo   isConnected

[android] How can I use getSystemService in a non-activity class (LocationManager)?

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