android - Unable to create service java.lang.SecurityException: "gps" location provider requires ACCESS_FINE_LOCATION permission -

i'm working on android tutorial creates odometer service: https://github.com/dogriffiths/headfirstandroid/tree/master/chapter13/odometer

it appears need explicitly ask user permissions use location services. https://developer.android.com/training/permissions/requesting.html

but seems activities extending activitycompat. mainactivity extends activity.

does have example of how implement requestpermissions() when extending activity class? , go...in it's on class or in oncreate?

thanks

contextcompat public class derived android.support.v4 library , it's not related appcompatactivity. checking permission on android version 23 , this:

private void getpermission(string permission, integer requestcode) {     if (contextcompat.checkselfpermission(test_activity.this, permission) != packagemanager.permission_granted) {         activitycompat.requestpermissions(test_activity.this, new string[]{permission}, requestcode);     } else {         toast.maketext(this, "" + permission + " granted.", toast.length_short).show();     }  } 

than call method in oncreate:

getpermission(android.manifest.permission.access_fine_location, requestcode);

than override onrequestpermissionsresult , handle result:

@override public void onrequestpermissionsresult(int requestcode, string[] permissions, int[] grantresults) {     super.onrequestpermissionsresult(requestcode, permissions, grantresults); if(activitycompat.checkselfpermission(this, permissions[0]) == packagemanager.permission_granted){     switch (requestcode) {         //location         case 1:             //             break;     }   else  {  toast.maketext(this, "permission denied", toast.length_short).show();  } }