Get the iOS Headset wire-control event

-(BOOL) canbecomefirstresponder{
NSLog (@ "_____%s_____", __function__);
return YES;
}


Received remote event
-(void) Remotecontrolreceivedwithevent: (uievent *) event{
NSLog (@ "event tyipe:::%d subtype:::%d", Event.type,event.subtype);
type==2 subtype== Click Pause Key: 103, double-click Pause Key 104
if (Event.type = = Uieventtyperemotecontrol) {
Switch (event.subtype) {

Case uieventsubtyperemotecontrolplay:{
NSLog (@ "Play---------");
}break;
Case uieventsubtyperemotecontrolpause:{
NSLog (@ "Pause---------");
}break;
Case uieventsubtyperemotecontrolstop:{
NSLog (@ "Stop---------");
}break;
Case uieventsubtyperemotecontroltoggleplaypause:{
Click Pause Key: 103
NSLog (@ "Click Pause key: 103");
}break;
Case uieventsubtyperemotecontrolnexttrack:{
Double-click Pause key: 104
NSLog (@ "Double-click Pause key: 104");
}break;
Case uieventsubtyperemotecontrolprevioustrack:{
NSLog (@ "Three hit pause key: 105");
}break;
Case uieventsubtyperemotecontrolbeginseekingforward:{
NSLog (@ "Click, then press not put: 108");
}break;
Case uieventsubtyperemotecontrolendseekingforward:{
NSLog (@ "Click, then press not to put, loosen when: 109");
}break;
Default
Break
}
}
}

Add the above code to get the headset line control of each click event, tick the taxi before the version of a headset grab a single function, is so realized

====================================================================================================

Capture Headphone Plug event in iOS development

void Audioroutechangelistenercallback (
void *inuserdata,
Audiosessionpropertyid InID,
UInt32 Indatasize,
const void *indata)
{
UInt32 propertysize = sizeof (CFSTRINGREF);
Audiosessioninitialize (NULL, NULL, NULL, NULL);
Cfstringref state = nil;
Audiosessiongetproperty (Kaudiosessionproperty_audioroute
, &propertysize,&state);

NSLog (@ "%@", (NSString *) state);//return @ "headphone" or @ "Speaker" and "."
}
-(void) Viewdidload {
[Super Viewdidload];

Audiosessioninitialize (NULL, NULL, NULL, NULL);
Osstatus status = Audiosessionaddpropertylistener (
Kaudiosessionproperty_audioroutechange,
Audioroutechangelistenercallback,self);
if (status = = 0) {//ok}
}

====================================================================================================

First Import System class library

#import <AVFoundation/AVFoundation.h>

Monitor Headphone Events

[[Avaudiosessionsharedinstance] setdelegate:self];

Use this code instead to allow the app sound to continue to play when the ' screen ' is locked.

[[Avaudiosessionsharedinstance] setCategory:AVAudioSessionCategoryPlaybackerror:nil];

Registers the audio route Change listener callback function

Audiosessionaddpropertylistener (Kaudiosessionproperty_audioroutechange,audioroutechangelistenercallback, self);

Write this code where you need to listen.

I personally recommend to put

-(BOOL) Application: (UIApplication *) application didfinishlaunchingwithoptions: (nsdictionary *) launchOption

Because it's the big picture, where you can respond to it.

For example

-(BOOL) Application: (UIApplication *) application didfinishlaunchingwithoptions: (nsdictionary *) launchOptions

{

Self.window = [[[Uiwindowalloc] initwithframe:[[uiscreenmainscreen]bounds]]autorelease];

Landing VC

Loginviewcontroller *LOGINVC = [[Loginviewcontrolleralloc]init];

Uinavigationcontroller *NAVNV = [[UINAVIGATIONCONTROLLERALLOC]INITWITHROOTVIEWCONTROLLER:LOGINVC];

[Navnvsetnavigationbarhidden:yes];

[LOGINVC release];

Monitor Headphone Events

[[Avaudiosessionsharedinstance] setdelegate:self];

Use this code instead to allow the app sound to continue to play when the ' screen ' is locked.

[[Avaudiosessionsharedinstance] setCategory:AVAudioSessionCategoryPlaybackerror:nil];

Registers the audio route change listener