iOS 開啟擴音器以及插入耳機的操作
廢話不多說說一下現狀
網上好多關於擴音器的操作,但是問題多多,SDK7.X 和SDK7.X以上版本有點詫異
#import
#import
#import
@interface AudioManager : NSObject
{
AVAudioPlayer *m_audioPlayer;
}
@property (atomic, readonly)BOOL _isSpeakerOn;
@property (atomic, readonly)BOOL _isHeadsetOn;
+(AudioManager*)shared;
// 開啟擴音器
- (void)setSpeakerOn;
// 關閉擴音器
- (void)setSpeakerOff;
@end
//
// AudioManager.m
// AvconNetAndCallDemo
//
// Created by zjq on 14-7-21.
// Copyright (c) 2014年 zjq. All rights reserved.
//
#import AudioManager.h
#import
#define IOSVersion [[UIDevice currentDevice].systemVersion floatValue]
@implementation AudioManager
@synthesize _isSpeakerOn;
@synthesize _isHeadsetOn;
- (id)init
{
self = [super init];
if (self) {
_isSpeakerOn = NO;
AVAudioSession *audioSession = [AVAudioSession sharedInstance];
//預設情況下擴音器播放
[audioSession setCategory:AVAudioSessionCategoryPlayback withOptions:AVAudioSessionCategoryOptionMixWithOthers error:nil];
[audioSession setActive:YES error:nil];
UInt32 sessionCategory = kAudioSessionCategory_MediaPlayback;
AudioSessionSetProperty(kAudioSessionProperty_AudioCategory,
sizeof(sessionCategory),
&sessionCategory);
UInt32 audioRouteOverride = kAudioSessionOverrideAudioRoute_Speaker;
AudioSessionSetProperty (kAudioSessionProperty_OverrideAudioRoute,
sizeof (audioRouteOverride),
&audioRouteOverride);
AudioSessionAddPropertyListener (kAudioSessionProperty_AudioRouteChange,
audioRouteChangeListenerCallback, (__bridge void *)(self));
}
return self;
}
static AudioManager *_audioManager = NULL;
+(AudioManager*)shared
{
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
_audioManager = [[AudioManager alloc] init];
});
return _audioManager;
}
- (void)setSpeakerOn
{
NSLog(@setSpeakerOn:%d,[NSThread isMainThread]);
UInt32 doChangeDefaultRoute = kAudioSessionOverrideAudioRoute_Speaker;
AudioSessionSetProperty (kAudioSessionProperty_OverrideCategoryDefaultToSpeaker,
sizeof (doChangeDefaultRoute),
&doChangeDefaultRoute
);
_isSpeakerOn = [self checkSpeakerOn];
_isHeadsetOn = NO;
//[self resetOutputTarget];
}
- (void)setSpeakerOff
{
UInt32 doChangeDefaultRoute = kAudioSessionOverrideAudioRoute_None;
AudioSessionSetProperty (kAudioSessionProperty_OverrideCategoryDefaultToSpeaker,
sizeof (doChangeDefaultRoute),
&doChangeDefaultRoute
);
_isSpeakerOn = [self checkSpeakerOn];
}
- (BOOL)checkSpeakerOn
{
CFStringRef route;
UInt32 propertySize = sizeof(CFStringRef);
AudioSessionGetProperty(kAudioSessionProperty_AudioRoute, &propertySize, &route);
if((route == NULL) || (CFStringGetLength(route) == 0))
{
// Silent Mode
NSLog(@AudioRoute: SILENT, do nothing!);
}
else
{
NSString* routeStr = (__bridge NSString*)route;
NSRange speakerRange = [routeStr rangeOfString : @Speaker];
if (speakerRange.location != NSNotFound)
return YES;
}
return NO;
}
- (BOOL)hasHeadset
{
CFStringRef route;
UInt32 propertySize = sizeof(CFStringRef);
AudioSessionGetProperty(kAudioSessionProperty_AudioRoute, &propertySize, &route);
if((route == NULL) || (CFStringGetLength(route) == 0))
{
// Silent Mode
NSLog(@AudioRoute: SILENT, do nothing!);
}
else
{
NSString* routeStr = (__bridge NSString*)route;
NSLog(@AudioRoute: %@, routeStr);
if ([routeStr isEqualToString:@ReceiverAndMicrophone]) {
// static dispatch_once_t onceToken;
// dispatch_once(&onceToken, ^{
// [self setSpeakerOn];
// });
[self setSpeakerOn];
}
NSRange headphoneRange = [routeStr rangeOfString : @Headphone];
NSRange headsetRange = [routeStr rangeOfString : @Headset];
if (headphoneRange.location != NSNotFound)
{
return YES;
} else if(headsetRange.location != NSNotFound)
{
return YES;
}
}
return NO;
}
// 判斷麥克風是否有用
- (BOOL)hasMicphone
{
return [[AVAudioSession sharedInstance] isInputAvailable];
}
- (void)erjiOutPutTarget
{
BOOL hasHeadset = [self hasHeadset];
if (hasHeadset) {
_isHeadsetOn = YES;
}
NSLog (@Will Set output target is_headset = %@ ., hasHeadset?@YES:@NO);
UInt32 audioRouteOverride = kAudioSessionOverrideAudioRoute_None;
AudioSessionSetProperty(kAudioSessionProperty_OverrideAudioRoute, sizeof(audioRouteOverride), &audioRouteOverride);
}
- (void)resetOutputTarget
{
BOOL hasHeadset = [self hasHeadset];
NSLog (@Will Set output target is_headset = %@ ., hasHeadset?@YES:@NO);
UInt32 audioRouteOverride = kAudioSessionOverrideAudioRoute_Speaker;
AudioSessionSetProperty(kAudioSessionProperty_OverrideAudioRoute, sizeof(audioRouteOverride), &audioRouteOverride);
_isHeadsetOn = NO;
}
void audioRouteChangeListenerCallback (void *inUserData, AudioSessionPropertyID inPropertyID, UInt32 inPropertyValueS, const void *inPropertyValue)
{
if (inPropertyID != kAudioSessionProperty_AudioRouteChange)
return;
// Determines the reason for the route change, to ensure that it is not
// because of a category change.
CFDictionaryRef routeChangeDictionary = (CFDictionaryRef)inPropertyValue;
CFNumberRef routeChangeReasonRef = (CFNumberRef)CFDictionaryGetValue (routeChangeDictionary, CFSTR (kAudioSession_AudioRouteChangeKey_Reason));
SInt32 routeChangeReason;
CFNumberGetValue (routeChangeReasonRef, kCFNumberSInt32Type, &routeChangeReason);
NSLog(@<<
NSLog(@[=======%@,inUserData);
AudioManager *pMgr = (__bridge AudioManager *)inUserData;
//沒有耳機
if (routeChangeReason == kAudioSessionRouteChangeReason_OldDeviceUnavailable)
{
[pMgr setSpeakerOn];
[pMgr resetOutputTarget];
}
else if (routeChangeReason == kAudioSessionRouteChangeReason_NewDeviceAvailable)
{
[pMgr erjiOutPutTarget];
}else if (routeChangeReason == kAudioSessionRouteChangeReason_Override){
[pMgr setSpeakerOn];
[pMgr resetOutputTarget];
}
NSLog(@-------->%f,IOSVersion);
//if (IOSVersion >= 8.0) {
if (routeChangeReason==8) {
[pMgr hasHeadset];
}
//}
}
//- (BOOL)isAirplayActived
//{
// CFDictionaryRef currentRouteDescriptionDictionary = nil;
// UInt32 dataSize = sizeof(currentRouteDescriptionDictionary);
// AudioSessionGetProperty(kAudioSessionProperty_AudioRouteDescription, &dataSize, ¤tRouteDescriptionDictionary);
//
// BOOL airplayActived = NO;
// if (currentRouteDescriptionDictionary)
// {
// CFArrayRef outputs = CFDictionaryGetValue(currentRouteDescriptionDictionary, kAudioSession_AudioRouteKey_Outputs);
// if(outputs != NULL && CFArrayGetCount(outputs) > 0)
// {
// CFDictionaryRef currentOutput = CFArrayGetValueAtIndex(outputs, 0);
// //Get the output type (will show airplay / hdmi etc
// CFStringRef outputType = CFDictionaryGetValue(currentOutput, kAudioSession_AudioRouteKey_Type);
//
// airplayActived = (CFStringCompare(outputType, kAudioSessionOutputRoute_AirPlay, 0) == kCFCompareEqualTo);
// }
// CFRelease(currentRouteDescriptionDictionary);
// }
// return airplayActived;
//}
/*
- (void)openloudspeaker{
//初始化播放器的時候如下設定
UInt32 sessionCategory = kAudioSessionCategory_MediaPlayback;
AudioSessionSetProperty(kAudioSessionProperty_AudioCategory,
sizeof(sessionCategory),
&sessionCategory);
UInt32 audioRouteOverride = kAudioSessionOverrideAudioRoute_Speaker;
AudioSessionSetProperty (kAudioSessionProperty_OverrideAudioRoute,
sizeof (audioRouteOverride),
&audioRouteOverride);
AVAudioSession *audioSession = [AVAudioSession sharedInstance];
//預設情況下擴音器播放
[audioSession setCategory:AVAudioSessionCategoryPlayback error:nil];
[audioSession setActive:YES error:nil];
[self handleNotification:YES];
}
#pragma mark - 監聽耳機or擴音器
- (void) handleNotification:(BOOL)state
{
[[UIDevice currentDevice] setProximityMonitoringEnabled:state]; //建議在播放之前設定yes,播放結束設定NO,這個功能是開啟紅外感應
if(state)//添加監聽
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(sensorStateChange:) name:@UIDeviceProximityStateDidChangeNotification
object:nil];
else//移除監聽
[[NSNotificationCenter defaultCenter] removeObserver:self name:@UIDeviceProximityStateDidChangeNotification object:nil];
}
//處理監聽觸發事件
-(void)sensorStateChange:(NSNotificationCenter *)notification;
{
//如果此時手機靠近面部放在耳朵旁,那麼聲音將通過耳機輸出,並將螢幕變暗(省電啊)
if ([[UIDevice currentDevice] proximityState] == YES)
{
NSLog(@Device is close to user);
[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayAndRecord error:nil];
}
else
{
NSLog(@Device is not close to user);
[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error:nil];
}
}
*/
@end