iOS开发播放文本

iOS7以后AVSpeechSynthesizer苹果开放了这个类   它可以将文本转化成声音并播放；

下面的是我的封装使用起来特别简单；

//

//  TTSSpeak.h

//  SayLoveYou

//

//  Created by zyyt on 16/7/1.

//

//

/*

汉语：             zh-CN      (普通话)

粤语：             zh-HK

英语:                en-US

俄语：              ru-RU

日语：              ja-JP

泰语:                 th-TH

德语:                 de-DE

韩语:                  ko-KO

法语:                  fr-FR

希腊语:              gr-GR

意大利语:          it-IT

西班牙语：       es-ES

阿拉伯语：       ar-Ar

葡萄牙语：       pt-PT

*/

#import <Foundation/Foundation.h>

@interface TTSSpeak : NSObject

//所需的源语言

@property (nonatomic,copy)NSString * languageCode;

//播放的速度

@property (nonatomic,readonly)NSString * playRate;

//当前播放的源语言

@property (nonatomic,readonly)NSString * currentLanguageCode;

//声音大小

@property(nonatomic) NSString * volume;           // [0-1] Default = 1

+ (instancetype)shareInstance;

/*

* playText:播放的文本

*languageCode:播放的语言

*rate:播放的速度 默认为0.7

*/

- (void)playText:(NSString*)playText withNativeLanguage:(NSString*)languageCode rate:(NSString *)rate volume:(NSString*)volume ;

//停止播放

- (BOOL)stopSpeaking;

//暂停播放

- (BOOL)pauseSpeaking;

//继续播放

- (BOOL)continueSpeaking;

@end

//

//  TTSSpeak.m

//  SayLoveYou

//

//  Created by zyyt on 16/7/1.

//

//

#import "TTSSpeak.h"

#import <AVFoundation/AVFoundation.h>

@interface TTSSpeak ()

@property (nonatomic,copy)NSString * rate;

@property (nonatomic,strong)AVSpeechSynthesizer * speechSynthesizer;

@property (nonatomic,copy)NSString * LanguageCode;

@end

@implementation TTSSpeak

- (AVSpeechSynthesizer *)speechSynthesizer

{

if (_speechSynthesizer == nil) {

_speechSynthesizer = [[AVSpeechSynthesizer alloc] init];

}

return _speechSynthesizer;

}

+ (instancetype)shareInstance

{

static TTSSpeak * sharedAccountManagerInstance = nil;

static dispatch_once_t predicate;

dispatch_once(&predicate, ^{

sharedAccountManagerInstance = [[TTSSpeak alloc] init];

});

return sharedAccountManagerInstance;

}

- (void)playText:(NSString*)playText withNativeLanguage:(NSString*)languageCode rate:(NSString *)rate volume:(NSString*)volume {

self.rate = rate;

[self setLanguageCode:languageCode];

AVSpeechSynthesisVoice * voice = [AVSpeechSynthesisVoice voiceWithLanguage:languageCode];

AVSpeechUtterance *  utterance = [[AVSpeechUtterance alloc] initWithString:playText];

utterance.rate *= [rate floatValue];

utterance.volume = volume?[volume floatValue]:[self.volume floatValue];

self.volume = volume?volume:self.volume;

if (!rate) {

utterance.rate *= 0.7;

}

utterance.voice = voice;

[self.speechSynthesizer speakUtterance:utterance];

}

- (BOOL)stopSpeaking

{

return  [self.speechSynthesizer stopSpeakingAtBoundary:AVSpeechBoundaryImmediate];

}

- (BOOL)pauseSpeaking{

return     [self.speechSynthesizer pauseSpeakingAtBoundary:AVSpeechBoundaryImmediate];

}

- (BOOL)continueSpeaking

{

return    [self.speechSynthesizer continueSpeaking];

}

- (NSString *)playRate

{

if (!self.rate) {

return @"0.7";

}

return self.rate;

}

- (NSString *)currentLanguageCode

{

if (!self.languageCode) {

return @"没有设置源语言";

}

return self.languageCode;

}

@end