为textView添加语音输入功能的实例代码(集成讯飞语音识别)

libz.tbd
AVFoundation.framework
SystemConfiguration.framework
Foundation.framework
CoreTelephony.framework
AudioToolbox.framework
UIKit.framework
AddressBook.framework
CoreLocation.framework
CoreGraphics.framework

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
 //存储路径
 NSArray *paths = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES);
 NSString *cachePath = [paths objectAtIndex:0];
 [IFlySetting setLogFilePath:cachePath];
 //创建语音配置,appid必须要传入，仅执行一次则可
 NSString *initString = [[NSString alloc] initWithFormat:@"appid=%@",@"你的appid"];
 //所有服务启动前，需要确保执行createUtility
 [IFlySpeechUtility createUtility:initString];
}

#import "iflyMSC/IFlyMSC.h" 
 
#import "ISRDataHelper.h" 

//有界面
-(void)initRecognizer{
 //单例模式，UI的实例
 if (_iflyRecognizerView == nil) {
  //UI显示剧中
  _iflyRecognizerView= [[IFlyRecognizerView alloc] initWithCenter:self.view.center];
  [_iflyRecognizerView setParameter:@"" forKey:[IFlySpeechConstant PARAMS]];
  //设置听写模式
  [_iflyRecognizerView setParameter:@"iat" forKey:[IFlySpeechConstant IFLY_DOMAIN]];
 }
 _iflyRecognizerView.delegate = self;
 if (_iflyRecognizerView != nil) {
  //设置最长录音时间
  [_iflyRecognizerView setParameter:@"30000" forKey:[IFlySpeechConstant SPEECH_TIMEOUT]];
  //设置后端点 3000
  [_iflyRecognizerView setParameter:@"3000" forKey:[IFlySpeechConstant VAD_EOS]];
  //设置前端点 3000
  [_iflyRecognizerView setParameter:@"3000" forKey:[IFlySpeechConstant VAD_BOS]];
  //设置采样率，推荐使用16K 16000
  [_iflyRecognizerView setParameter:@"16000" forKey:[IFlySpeechConstant SAMPLE_RATE]];
  //  if ([instance.language isEqualToString:[IATConfig chinese]]) {
  //   //设置语言 zh_cn
  [_iflyRecognizerView setParameter:@"zh_cn" forKey:[IFlySpeechConstant LANGUAGE]];
  //   //设置方言 mandarin
  [_iflyRecognizerView setParameter:@"mandarin" forKey:[IFlySpeechConstant ACCENT]];
  //  }else if ([instance.language isEqualToString:[IATConfig english]]) {
  //   //设置语言
  //   [_iflyRecognizerView setParameter:instance.language forKey:[IFlySpeechConstant LANGUAGE]];
  //  }
  //  //设置是否返回标点符号 0
  [_iflyRecognizerView setParameter:@"1" forKey:[IFlySpeechConstant ASR_PTT]];
 }
}

-(void)startBtn{ 
 
 if (_iflyRecognizerView == nil) { 
 
  [self initRecognizer ]; 
 
 } 
 
 //设置音频来源为麦克风 
 
 [_iflyRecognizerView setParameter:IFLY_AUDIO_SOURCE_MIC forKey:@"audio_source"]; 
 
 //设置听写结果格式为json 
 
 [_iflyRecognizerView setParameter:@"plain" forKey:[IFlySpeechConstant RESULT_TYPE]]; 
 
 //保存录音文件，保存在sdk工作路径中，如未设置工作路径，则默认保存在library/cache下 
 
 [_iflyRecognizerView setParameter:@"asr.pcm" forKey:[IFlySpeechConstant ASR_AUDIO_PATH]]; 
 
 [_iflyRecognizerView start]; 
 
} 

- (void)onResult:(NSArray *)resultArray isLast:(BOOL)isLast
{
 NSMutableString *result = [[NSMutableString alloc] init];
 NSDictionary *dic = [resultArray objectAtIndex:0];
 for (NSString *key in dic) {
  [result appendFormat:@"%@",key];
 }
  self.textField.text =[NSString stringWithFormat:@"%@%@",_textField.text,result];
 [_iflyRecognizerView cancel];
}
- (void)onError: (IFlySpeechError *) error
{
 NSLog(@"识别出错");
}