how to disable proximity when AVPlayer stop playing - ios

Question

In my app i have to record audio and play this audio and add proximity when play this audio near your ear so for this i have to do this code when play button click:
- (IBAction)btnPlayPauseTapped:(id)sender {
UIDevice *device = [UIDevice currentDevice];
[device setProximityMonitoringEnabled: YES];
if (device.proximityMonitoringEnabled == YES) {
[[NSNotificationCenter defaultCenter] removeObserver:APP_DELEGATE name:#"UIDeviceProximityStateDidChangeNotification" object:nil];
[[NSNotificationCenter defaultCenter] addObserver:APP_DELEGATE selector:#selector(proximityChanged:) name:#"UIDeviceProximityStateDidChangeNotification" object:device];
//other code
}
Notification call this method when proximity enable:
- (void) proximityChanged:(NSNotification *)notification {
NSLog(#"proximity changed called");
UIDevice *device = [notification object];
AVAudioSession *audioSession = [AVAudioSession sharedInstance];
if(device.proximityState == 1){
[audioSession setCategory:AVAudioSessionCategoryPlayAndRecord error:nil];
[audioSession overrideOutputAudioPort:AVAudioSessionPortOverrideNone error:nil];
[audioSession setActive:YES error:nil];
}
else{
[audioSession setCategory:AVAudioSessionCategoryPlayback error:nil];
[audioSession overrideOutputAudioPort:AVAudioSessionPortOverrideSpeaker error:nil];
[audioSession setActive:YES error:nil];
}
}
when player stop playing or pause i add this:
UIDevice *device = [UIDevice currentDevice];
[device setProximityMonitoringEnabled: NO];
but when i again start playing audio and put device near ear that time it called notification method(proximityChanged) and at that time proximity state also get 1 and audio session category also set as playandrecord but it did not play this audio in ear speaker . it play audio in main speaker.
please help me in this.
Thank you in Advance.

Answer 1

I Solved my problem after 2 days in that when player stop player as I disable proximity is correct but I changed audiosession category in proximitychange method.
- (void) proximityChanged:(NSNotification *)notification {
UIDevice *device = [notification object];
AVAudioSession *audioSession = [AVAudioSession sharedInstance];
BOOL success;
success = [audioSession setCategory:AVAudioSessionCategoryPlayAndRecord error:nil];
if(device.proximityState == 1){
NSLog(#"bool %s", success ? "true" : "false");
[audioSession overrideOutputAudioPort:AVAudioSessionPortOverrideNone error:nil];
[audioSession setActive:YES error:nil];
}
else{
NSLog(#"bool %s", success ? "true" : "false");
[audioSession overrideOutputAudioPort:AVAudioSessionPortOverrideSpeaker error:nil];
[audioSession setActive:YES error:nil];
}