Swift: Remote control buttons for audio Session on lock screen

Make a file to subclass the UIApplication

make the class to respond to events

import UIKit

import Foundation

@objc(MyTest2) class MyTest2: UIApplication

{

    

    

   override func canBecomeFirstResponder() ->Bool{

        return true

    }

   override func remoteControlReceivedWithEvent(event: UIEvent) {

    }

    

}

and use the class in main.m

#import <UIKit/UIKit.h>

#import "AppDelegate.h"

#import "test3-swift.h"

int main(int argc, char * argv[]) {

    @autoreleasepool {

        return UIApplicationMain(argc, argv, NSStringFromClass([MyTest2 class]), NSStringFromClass([AppDelegate class]));

    }

}

and now activate the audioSession and use MPNowPlayingInfoCenter class. Make sure audioSession is not mixing with other.

I have used it in a view controller file

- (void)viewDidAppear:(BOOL)animated {

    [super viewDidAppear:animated];

    

    /*

     *  Without some sort of

     *  audio player, the remote

     *  remains unavailable to this

     *  app, and the previous app will

     *  maintain control over it.

     */

    if ([[UIApplication sharedApplication] respondsToSelector:@selector(beginReceivingRemoteControlEvents)]){

        [[UIApplication sharedApplication] beginReceivingRemoteControlEvents];

        [self becomeFirstResponder];

    }

    

    [[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error:nil];

    

    if(![[AVAudioSession sharedInstance] setActive:YES error:nil])

    {

        NSLog(@"Failed to set up a session.");

    }

    _player = [[AVPlayer alloc] initWithURL:[NSURL URLWithString:@"http://stream.jewishmusicstream.com:8000"]];

    

    /*  Kicking off playback takes over

     *  the software based remote control

     *  interface in the lock screen and

     *  in Control Center.

     */

    

    [_player play];

    

    

    Class playingInfoCenter = NSClassFromString(@"MPNowPlayingInfoCenter");

    

    if (playingInfoCenter) {

        

        

        NSMutableDictionary *songInfo = [[NSMutableDictionary alloc] init];

        

        

        MPMediaItemArtwork *albumArt = [[MPMediaItemArtwork alloc] initWithImage: [UIImage imageNamed:@"abc.jpg"]];

        

        [songInfo setObject:@"Audio Title" forKey:MPMediaItemPropertyTitle];

        [songInfo setObject:@"Audio Author" forKey:MPMediaItemPropertyArtist];

        [songInfo setObject:@"Audio Album" forKey:MPMediaItemPropertyAlbumTitle];

        [songInfo setObject:albumArt forKey:MPMediaItemPropertyArtwork];

        [[MPNowPlayingInfoCenter defaultCenter] setNowPlayingInfo:songInfo];

        

        

    }

    

    

}