作者:聪头丶_505 | 来源:互联网 | 2023-05-18 20:35
在我的项目中,我AVAudioSession
用来检测任何耳机已插入或拔出.但在这种情况下,我无法检测何时插入蓝牙设备.这是我的耳机状态代码.
- (void)audioRouteChangeListenerCallback:(NSNotification*)notification
{
NSDictionary *interuptiOnDict= notification.userInfo;
NSInteger routeChangeReason = [[interuptionDict valueForKey:AVAudioSessionRouteChangeReasonKey] integerValue];
switch (routeChangeReason) {
case AVAudioSessionRouteChangeReasonNewDeviceAvailable:
//NSLog(@"AVAudioSessionRouteChangeReasonNewDeviceAvailable");
NSLog(@"Headphone/Line plugged in");
[_soundButtonOutlet setImage:[UIImage imageNamed:@"sound-on.png"] forState:UIControlStateNormal];
_headSetState=YES;
break;
case AVAudioSessionRouteChangeReasonOldDeviceUnavailable:
NSLog(@"AVAudioSessionRouteChangeReasonOldDeviceUnavailable");
NSLog(@"Headphone/Line was pulled. Stopping player....");
[_soundButtonOutlet setImage:[UIImage imageNamed:@"sound-off.png"] forState:UIControlStateNormal];
if(_isPlaying==YES)
{
[self.player pause];
[_audioButtonOutlet setImage:[UIImage imageNamed:@"play.png"] forState:UIControlStateNormal];
_isPlaying=NO;
}
_headSetState=NO;
break;
case AVAudioSessionRouteChangeReasonCategoryChange:
// called at start - also when other audio wants to play
NSLog(@"AVAudioSessionRouteChangeReasonCategoryChange");
break;
}
- (BOOL)isHeadsetPluggedIn
{
AVAudioSessionRouteDescription* route = [[AVAudioSession sharedInstance] currentRoute];
for (AVAudioSessionPortDescription* desc in [route outputs]) {
if ([[desc portType] isEqualToString:AVAudioSessionPortHeadphones])
{
[_soundButtonOutlet setImage:[UIImage imageNamed:@"sound-on.png"] forState:UIControlStateNormal];
_headSetState=YES;
return YES;
}
else
{
[_soundButtonOutlet setImage:[UIImage imageNamed:@"sound-off.png"] forState:UIControlStateNormal];
_headSetState=NO;
return NO;
}
}
return NO;
}
}
- viewWillAppear {
[AVAudioSession sharedInstance];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(audioRouteChangeListenerCallback:) name:AVAudioSessionRouteChangeNotification object:nil];
[self isHeadsetPluggedIn];
}
那么如何检测蓝牙耳机是否插入iOS 8?
1> Gerrit Post..:
您可以检测当前活动的蓝牙输出设备(而不是输入设备)
SWIFT代码:
import AVFoundation
func bluetoothAudioConnected() -> Bool{
let outputs = AVAudioSession.sharedInstance().currentRoute.outputs
for output in outputs{
if output.portType == AVAudioSessionPortBluetoothA2DP || output.portType == AVAudioSessionPortBluetoothHFP || output.portType == AVAudioSessionPortBluetoothLE{
return true
}
}
return false
}
蓝牙设备基于以下问题:AVAudioSessionPortBluetoothHFP,A2DP和LE有什么区别?
我希望它对某人有帮助