ios - beginReceivingRemoteControlEvents not triggering events for Apple Music -

i playing apple music application , apple music player code -

-(void) submitapplemusictrackwithproductid: (nsstring *) productid // productid in last numbers after i= in share url apple music {      [skcloudservicecontroller requestauthorization:^(skcloudserviceauthorizationstatus status) {         nslog(@"status %ld", (long)status);         skcloudservicecontroller *cloudservicecontroller;         cloudservicecontroller = [[skcloudservicecontroller alloc] init];         [cloudservicecontroller requestcapabilitieswithcompletionhandler:^(skcloudservicecapability capabilities, nserror * _nullable error) {             nslog(@"%lu %@", (unsigned long)capabilities, error);              if (capabilities >= skcloudservicecapabilityaddtocloudmusiclibrary || capabilities==skcloudservicecapabilitymusiccatalogplayback)             {                 nslog(@"you can add icloud!");                 [[mpmedialibrary defaultmedialibrary] additemwithproductid:productid completionhandler:^(nsarray<__kindof mpmediaentity *> * _nonnull           entities, nserror * _nullable error)                  {                      nslog(@"added id%@ entities: %@ , error %@", productid, entities, error);                      nsarray *trackstoplay = [nsarray arraywithobject:productid];                  [[mpmusicplayercontroller applicationmusicplayer] setqueuewithstoreids:trackstoplay];                     [[mpmusicplayercontroller applicationmusicplayer] stop];                  [[mpmusicplayercontroller applicationmusicplayer] play];                    self.istrackchangedbynextpreviousbutton = no;          [[nsnotificationcenter defaultcenter]removeobserver:self name:mpmusicplayercontrollernowplayingitemdidchangenotification object:nil];         [[nsnotificationcenter defaultcenter]removeobserver:self name:mpmusicplayercontrollerplaybackstatedidchangenotification object:nil];          [[nsnotificationcenter defaultcenter] addobserver:self                                                               selector:@selector(handletrackchanged:)                                                                   name:mpmusicplayercontrollernowplayingitemdidchangenotification                                                                 object:nil];         [[nsnotificationcenter defaultcenter] addobserver:self                                                               selector:@selector(handleplaybackstatechanged:)                                                                   name:mpmusicplayercontrollerplaybackstatedidchangenotification                                                                 object:nil];                        [[mpmusicplayercontroller applicationmusicplayer] begingeneratingplaybacknotifications];                      [[mpmusicplayercontroller applicationmusicplayer] setrepeatmode: mpmusicrepeatmodenone];                  }];               }             else             {                 nslog(@"blast! ability add apple music track not there. sigh.");             }          }];      }]; }  -(void)handletrackchanged:(id )notification {     if (!self.applemusicpreviuostrack)     {                 self.applemusicpreviuostrack = [[tracks alloc] init];     }     if (self.applemusicpreviuostrack.trackid == self.currenttrack.trackid && [mpmusicplayercontroller applicationmusicplayer].currentplaybackrate == 0 && !self.issongchangedmanually)     {         self.issongchangedmanually = yes;         [self filterartiststracks:@"next" :^(tracks *track, nserror *err)          {           }];      }     else     {      if ([[mpmusicplayercontroller applicationmusicplayer] currentplaybackrate]==1)      {     self.applemusicpreviuostrack.trackid = self.currenttrack.trackid;     [[nsnotificationcenter defaultcenter] postnotificationname:ktrackchanged object:nil];          //delay execution of block 20 seconds.  dispatch_after(dispatch_time(dispatch_time_now, 30 * nsec_per_sec), dispatch_get_main_queue(), ^{      self.issongchangedmanually = no;  });       }     } }  -(void)handleplaybackstatechanged:(id )notification {     nslog(@"handle_playbackstatechanged");      [[nsnotificationcenter defaultcenter] postnotificationname:kdidtrackplaybackstatus object:nil];     if ([mpmusicplayercontroller applicationmusicplayer].currentplaybackrate>0)     {         [self.playermenuview.playpausebutton setimage:[uiimage imagenamed:@"pause"] forstate:uicontrolstatenormal];     }     else     {         [self.playermenuview.playpausebutton setimage:[uiimage imagenamed:@"play"] forstate:uicontrolstatenormal];     }  } 

which working great . wants control track lock screen, did following code in viewwillappear

  [[uiapplication sharedapplication] beginreceivingremotecontrolevents];    [app_delegate becomefirstresponder]; 

and remotecontrolreceivedwithevent method written in appdelegate file follows -

-(void)remotecontrolreceivedwithevent:(uievent *)event {     switch (event.subtype)     {         case uieventsubtyperemotecontroltoggleplaypause:             [app_delegate playpausemusic:nil];             //[streamer pause];             break;         case uieventsubtyperemotecontrolplay:             [app_delegate playpausemusic:nil];             //[streamer start];             break;         case uieventsubtyperemotecontrolpause:             [app_delegate playpausemusic:nil];             //[streamer pause];             break;         case uieventsubtyperemotecontrolstop:             [app_delegate playpausemusic:nil];              //[streamer stop];             break;         case uieventsubtyperemotecontrolnexttrack:              [app_delegate next:nil];              break;         case uieventsubtyperemotecontrolprevioustrack:             [app_delegate previous:nil];               break;          default:             break;     } } 

note - remotecontrolreceivedwithevent triggered every time if itunes tracks playing avplayer or spotify tracks playing spotify ios sdk .

but same code not triggering while playing apple music tracks -

[mpmusicplayercontroller applicationmusicplayer]                         or   [mpmusicplayercontroller systemmusicplayer] 

any appreciated. thanks

instead of using -(void)remotecontrolreceivedwithevent:(uievent *)event track controls, use mpremotecommandcenter adding targets each 1 of controls:

note: it's important enable controls before assigning target.

[mpremotecommandcenter sharedcommandcenter].playcommand.enabled = yes; [[mpremotecommandcenter sharedcommandcenter].playcommand addtarget:self action:@selector(remoteplay)];  [mpremotecommandcenter sharedcommandcenter].pausecommand.enabled = yes; [[mpremotecommandcenter sharedcommandcenter].pausecommand addtarget:self action:@selector(remotestop)];  [mpremotecommandcenter sharedcommandcenter].previoustrackcommand.enabled = yes; [[mpremotecommandcenter sharedcommandcenter].previoustrackcommand addtarget:self action:@selector(loadprevioussong)];  [mpremotecommandcenter sharedcommandcenter].nexttrackcommand.enabled = yes; [[mpremotecommandcenter sharedcommandcenter].nexttrackcommand addtarget:self action:@selector(loadnextsong)]; 

selectors:

-(void) remoteplay {     [app_delegate playpausemusic:nil]; } -(void) remotestop {     [app_delegate playpausemusic:nil]; } -(void) loadnextsong {     [app_delegate next:nil]; } -(void) loadprevioussong {     [app_delegate previous:nil]; }