How to detect the headphone key press?

Question

I am trying to detect if user press the headphone keys for that i am using 2 methods.

-(void)headsetMicrophoneDetection
{
    [[UIApplication sharedApplication] beginReceivingRemoteControlEvents];
    [[MPRemoteCommandCenter sharedCommandCenter].togglePlayPauseCommand addTarget:self action:@selector(onTooglePlayPause)];

    NSLog(@"calling headset method");
}
-(void)onTooglePlayPause
{
    NSLog(@"kishore");
}
- (void)remoteControlReceivedWithEvent:(UIEvent *)theEvent
{
    NSLog(@"callig method to :)");
    if (theEvent.type == UIEventTypeRemoteControl) {
        switch(theEvent.subtype) {
            case UIEventSubtypeRemoteControlTogglePlayPause:
                NSLog(@"Hello");
                break;
            case UIEventSubtypeRemoteControlPlay:
                NSLog(@"Hello 2");
                break;
            case UIEventSubtypeRemoteControlPause:
                NSLog(@"Hello 3");
                break;
            case UIEventSubtypeRemoteControlStop:
                NSLog(@"Hello 4");
                break;
            default:
                return;
        }
    }
}

But after calling this method i did't get ,whats wrong in my code and i enabled background service for audio check & i am using this all methods in NSObject class.

Are you missing : in your selector when defining selector for MPRemoteCommandCenter as the method expects a parameter? — ldindu, Jul 22 '16 at 09:06
I would also wonder. Have you found the solution since then? — Dombi Bence, Apr 09 '19 at 11:43

score 0 · Answer 1 · answered Jul 22 '16 at 08:43

0

Please check the below code.

- (BOOL)isHeadsetPluggedIn {
    AVAudioSessionRouteDescription* route = [[AVAudioSession sharedInstance] currentRoute];
    for (AVAudioSessionPortDescription* desc in [route outputs]) {
        if ([[desc portType]     isEqualToString:AVAudioSessionPortHeadphones])
           return YES;
    }
    return NO;}

answered Jul 22 '16 at 08:43

martinsaha

63
6

1

but i want to check is user pressed any of the button volume ,play/pause thanks for the post :) – Kishore Kumar Jul 22 '16 at 08:58

score 0 · Answer 2 · answered Apr 09 '19 at 12:42

Try including this in viewDidAppear

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

And this in viewDidDisappear

[[AVAudioSession sharedInstance] setActive:NO error:nil];

How to detect the headphone key press?

2 Answers2