iOS 集成语音播报

iOS7.0之后新添加了一些新的功能，里面就有系统自带的语音播报库， 需要 导入系统的AVFoundation 库

#import <AVFoundation/AVFoundation.h>

@interface ViewController ()<AVSpeechSynthesizerDelegate>

/** 播报的内容 */
@property (nonatomic, readwrite , strong) AVSpeechSynthesizer *synth;
/** 负责播放 */
@property (nonatomic, readwrite , strong) AVSpeechUtterance *utterance;

@end

基本使用

    NSString *str = @"支付宝 到账 100万 元";
    self.utterance = [AVSpeechUtterance speechUtteranceWithString:str];//成功集成语音播报
        
    //pitchMultiplier: 音高
    //
    //postUtteranceDelay: 读完一段后的停顿时间
    //
    //preUtteranceDelay: 读一段话之前的停顿
    //rate: 读地速度, 系统提供了三个速度: AVSpeechUtteranceMinimumSpeechRate, AVSpeechUtteranceMaximumSpeechRate, AVSpeechUtteranceDefaultSpeechRate
    self.utterance.rate = AVSpeechUtteranceDefaultSpeechRate;// 播报的语速

    //    中式发音
    AVSpeechSynthesisVoice *voice = [AVSpeechSynthesisVoice voiceWithLanguage:@"zh-CN"];
    //英式发音
//    AVSpeechSynthesisVoice *voice = [AVSpeechSynthesisVoice voiceWithLanguage:@"en-GB"];

    self.utterance.voice = voice;

    self.synth = [[AVSpeechSynthesizer alloc] init];
    self.synth.delegate = self;// 设置代理
    [self.synth speakUtterance:self.utterance];

代理方法

//已经开始
- (void)speechSynthesizer:(AVSpeechSynthesizer *)synthesizer didStartSpeechUtterance:(AVSpeechUtterance *)utterance API_AVAILABLE(ios(7.0), watchos(1.0), tvos(7.0), macos(10.14)) {
    
}
//已经说完
- (void)speechSynthesizer:(AVSpeechSynthesizer *)synthesizer didFinishSpeechUtterance:(AVSpeechUtterance *)utterance API_AVAILABLE(ios(7.0), watchos(1.0), tvos(7.0), macos(10.14)) {
 
}
//已经暂停
- (void)speechSynthesizer:(AVSpeechSynthesizer *)synthesizer didPauseSpeechUtterance:(AVSpeechUtterance *)utterance API_AVAILABLE(ios(7.0), watchos(1.0), tvos(7.0), macos(10.14)) {
 
}
//已经继续说话
- (void)speechSynthesizer:(AVSpeechSynthesizer *)synthesizer didContinueSpeechUtterance:(AVSpeechUtterance *)utterance API_AVAILABLE(ios(7.0), watchos(1.0), tvos(7.0), macos(10.14)) {
 
}
//已经取消说话
- (void)speechSynthesizer:(AVSpeechSynthesizer *)synthesizer didCancelSpeechUtterance:(AVSpeechUtterance *)utterance API_AVAILABLE(ios(7.0), watchos(1.0), tvos(7.0), macos(10.14)) {
 
}
//将要说某段话
- (void)speechSynthesizer:(AVSpeechSynthesizer *)synthesizer willSpeakRangeOfSpeechString:(NSRange)characterRange utterance:(AVSpeechUtterance *)utterance API_AVAILABLE(ios(7.0), watchos(1.0), tvos(7.0), macos(10.14)) {
    
}