界面样式
听书界面
简易听书的demo主要包含一下几部分内容
主要功能
开始
- (void)speakUtterance:(AVSpeechUtterance *)utterance;
停止
- (BOOL)stopSpeakingAtBoundary:(AVSpeechBoundary)boundary;
暂停
- (BOOL)pauseSpeakingAtBoundary:(AVSpeechBoundary)boundary;
继续
- (BOOL)continueSpeaking;
语速
@property(nonatomic) float rate;
音色
@property(nonatomic) float pitchMultiplier;
音量
@property(nonatomic) float volume;
代码
/**
* 开始
*/
- (void)speechStart2{
//要合成的文字内容
AVSpeechUtterance *utterance = [AVSpeechUtterance speechUtteranceWithString:[JeffinSpeechModel sharedSpeechPlayerModel].SpeechWords];
//合成的语言(有好多种语言,需要自己选择)
AVSpeechSynthesisVoice *voiceType = [AVSpeechSynthesisVoice voiceWithLanguage:@"zh-CN"];
utterance.voice = voiceType;
utterance.rate = 0.50;//语速
utterance.pitchMultiplier = 1;//音色
[self.synthesizer speakUtterance:utterance];//开始
}
/**
* 停止
*/
- (void)speechStop{
[self.synthesizer stopSpeakingAtBoundary:AVSpeechBoundaryImmediate];
}
/**
* 暂停/继续
*/
- (void)speechPauseOrContinue{
if (self.synthesizer.isPaused == YES) {
[self.synthesizer continueSpeaking];
}else{
[self.synthesizer pauseSpeakingAtBoundary:AVSpeechBoundaryImmediate];
}
}
锁屏信息
锁屏信息
先设置开始后台播放功能
后台播放设置
开启后台,代码实现
//开启后台
[[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error:nil];
//接受远程控制
[self becomeFirstResponder];
[[UIApplication sharedApplication] beginReceivingRemoteControlEvents];
锁屏界面,代码实现
- (void)speechScreenInfo{
UIImage *image = [UIImage imageNamed: [JeffinSpeechModel sharedSpeechPlayerModel].coverName];//
NSString *novelName = [JeffinSpeechModel sharedSpeechPlayerModel].novelName;
NSString *authorName = [JeffinSpeechModel sharedSpeechPlayerModel].authorName;
MPMediaItemArtwork *artWork = [[MPMediaItemArtwork alloc] initWithImage:image];
NSDictionary *dic = @{MPMediaItemPropertyTitle:novelName,
MPMediaItemPropertyArtist:authorName,
MPMediaItemPropertyArtwork:artWork
};
[[MPNowPlayingInfoCenter defaultCenter] setNowPlayingInfo:dic];
}
远程控制,代码实现
#pragma mark -远程响应控制
- (void)remoteControlReceivedWithEvent:(UIEvent *)receivedEvent {
if (receivedEvent.type == UIEventTypeRemoteControl) {
switch (receivedEvent.subtype) {
case UIEventSubtypeRemoteControlPlay://播放
[self SpeechViewPauseOrContinue];
break;
case UIEventSubtypeRemoteControlPause://暂停
[self SpeechViewPauseOrContinue];
break;
case UIEventSubtypeRemoteControlTogglePlayPause: //耳机暂停/继续(只适用于耳机)
[self SpeechViewPauseOrContinue];
break;
case UIEventSubtypeRemoteControlNextTrack://下一曲
[self SpeechViewSpeechNext];
break;
case UIEventSubtypeRemoteControlPreviousTrack://上一曲
[self SpeechViewSpeechLast];
break;
default:
break;
}
}
}
耳机控制也在上面代码里, 耳机插拔事件处理代码
//耳机监听通知
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(handleRouteChange:) name:AVAudioSessionRouteChangeNotification object:nil];
//耳机监听事件处理
- (void)handleRouteChange:(NSNotification *)notification{
/*
当耳机插入的时候，AVAudioSessionRouteChangeReason等于AVAudioSessionRouteChangeReasonNewDeviceAvailable
代表一个新外接设备可用，但是插入耳机，我们不需要处理。所以不做判断。
当耳机拔出的时候 AVAudioSessionRouteChangeReason等于AVAudioSessionRouteChangeReasonOldDeviceUnavailable
代表一个之前外的外接设备不可用了，此时我们需要处理，让他播放器静音 。
AVAudioSessionRouteChangePreviousRouteKey：当之前的线路改变的时候，
获取到线路的描述对象：AVAudioSessionRouteDescription，然后获取到输出设备，判断输出设备的类型是否是耳机,
如果是就暂停播放
*/
NSDictionary *info = notification.userInfo;
AVAudioSessionRouteChangeReason reason = [info[AVAudioSessionRouteChangeReasonKey] unsignedIntegerValue];
if (reason == AVAudioSessionRouteChangeReasonOldDeviceUnavailable) {
AVAudioSessionRouteDescription *previousRoute = info[AVAudioSessionRouteChangePreviousRouteKey];
AVAudioSessionPortDescription *previousOutput = previousRoute.outputs[0];
NSString *portType = previousOutput.portType;
if ([portType isEqualToString:AVAudioSessionPortHeadphones]) {
[self SpeechViewPauseOrContinue];
}
}
// NSLog(@"%@",info);
}
打断事件监听处理
//通知监听
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(handleInterruption:) name:AVAudioSessionInterruptionNotification object:nil];
//事件处理
- (void)handleInterruption:(NSNotification *) notification{
if (notification.name != AVAudioSessionInterruptionNotification || notification.userInfo == nil) {
return;
}
NSDictionary *info = notification.userInfo;
if ([notification.name isEqualToString:AVAudioSessionInterruptionNotification]) {
if ([[info valueForKey:AVAudioSessionInterruptionTypeKey] isEqualToNumber:[NSNumber numberWithInt:AVAudioSessionInterruptionTypeBegan]]) {
NSLog(@"InterruptionTypeBegan");
[self SpeechViewPauseOrContinue];
} else {
NSLog(@"InterruptionTypeEnded");
[self SpeechViewPauseOrContinue];
}
}
}
