iOS 10 Siri调用

iOS10 苹果开放SIri API，SiriKit的功能非常强大，支持音频、视频、消息发送接收、搜索照片、预订行程、管理锻炼等等。

#import <Speech/Speech.h>@interface ViewController () <SFSpeechRecognizerDelegate>/** * 1. 先导入Speech.framework的框架 * 2. 导入头文件设置代理 * 3. 声明语音识别器 * 4. 授权 */@property (strong, nonatomic) IBOutlet UIButton *siriBtn;//siri按钮@property (strong, nonatomic) IBOutlet UITextView *siriTextView;//显示语音转化成文字@property(nonatomic,strong)SFSpeechRecognitionTask *recongnitionTask;//语音识别任务@property(nonatomic,strong)SFSpeechRecognizer *speechRecognizer;//语音识别器@property(nonatomic,strong)SFSpeechAudioBufferRecognitionRequest *recongnitionRequest;//语音识别请求@property(nonatomic,strong)AVAudioEngine *audioEngine;//录音引擎@end@implementation ViewController- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view, typically from a nib.    //设备识别语言为中文    NSLocale *locale = [[NSLocale alloc]initWithLocaleIdentifier:@"zh-CN"];    self.speechRecognizer = [[SFSpeechRecognizer alloc]initWithLocale:locale];    self.siriBtn.enabled = false;        //设置语音识别代理    _speechRecognizer.delegate =self;        //发送语音认证请求(首先要判断设备是否支持语音识别功能)    [SFSpeechRecognizer requestAuthorization:^(SFSpeechRecognizerAuthorizationStatus status) {                bool isButtonEnaled =false;//初始值不允许        switch (status) {            case SFSpeechRecognizerAuthorizationStatusAuthorized:                isButtonEnaled = true;                NSLog(@"可以语音识别");                break;            case SFSpeechRecognizerAuthorizationStatusDenied:                isButtonEnaled = false;                NSLog(@"用户被拒绝访问语音识别");                break;            case SFSpeechRecognizerAuthorizationStatusRestricted:                isButtonEnaled = false;                NSLog(@"不能在该设备使用语音识别");                break;            case SFSpeechRecognizerAuthorizationStatusNotDetermined:                isButtonEnaled = false;                NSLog(@"没有授权语音识别");            default:                break;        }        self.siriBtn.enabled = isButtonEnaled;    }];    ///创建录音引擎    self.audioEngine = [[AVAudioEngine alloc]init];}//按钮的点击事件- (IBAction)microphoneTap:(UIButton *)sender {    if ([self.audioEngine isRunning]) {        [self.audioEngine stop];        [self.recongnitionRequest endAudio];        self.siriBtn.enabled =YES;        [self.siriBtn setTitle:@"开始录制" forState:UIControlStateNormal];            }else{        [self startRecording];        [self.siriBtn setTitle:@"停止录制" forState:UIControlStateNormal];    }}//开始录制语音，并将语音转换成文字-(void)startRecording{    if (self.recongnitionTask) {        [self.recongnitionTask cancel];        self.recongnitionTask = nil;    }    AVAudioSession *audioSession =[AVAudioSession sharedInstance];    bool audioBool = [audioSession setCategory:AVAudioSessionCategoryRecord error:nil];        bool audioBool1 = [audioSession setMode:AVAudioSessionModeMeasurement error:nil];        bool audioBool2 = [audioSession setActive:true withOptions:AVAudioSessionSetActiveOptionNotifyOthersOnDeactivation error:nil];        if (audioBool || audioBool1 || audioBool2) {        NSLog(@"可以使用");    }else{        NSLog(@"这里说明有的功能不支持");    }    self.recongnitionRequest = [[SFSpeechAudioBufferRecognitionRequest alloc]init];    AVAudioInputNode *inputmode = self.audioEngine.inputNode;    SFSpeechAudioBufferRecognitionRequest *recongnitionRequest;    self.recongnitionRequest.shouldReportPartialResults =true;        //开始识别任务    self.recongnitionTask = [self.speechRecognizer recognitionTaskWithRequest:self.recongnitionRequest resultHandler:^(SFSpeechRecognitionResult * _Nullable result, NSError * _Nullable error) {        bool isFinal = false;        if (result) {            self.siriTextView.text = [[result bestTranscription]formattedString];//语音转文本            isFinal = [result isFinal];        }        if (error || isFinal) {            [self.audioEngine stop];            [inputmode removeTapOnBus:0];            self.recongnitionRequest = nil;            self.recongnitionTask = nil;            self.siriBtn.enabled = true;        }    }];    AVAudioFormat *recodingFormat = [inputmode outputFormatForBus:0];    [inputmode installTapOnBus:0 bufferSize:1024 format:recodingFormat block:^(AVAudioPCMBuffer * _Nonnull buffer, AVAudioTime * _Nonnull when) {        [self.recongnitionRequest appendAudioPCMBuffer:buffer];    }];    [self.audioEngine prepare];    bool audioEngineBool = [self.audioEngine startAndReturnError:nil];    NSLog(@"%d",audioEngineBool);    self.siriTextView.text = @"我是 siri，你说我听";    }//实现代理，可以录音-(void)speechRecognizer:(SFSpeechRecognizer *)speechRecognizer availabilityDidChange:(BOOL)available{    if(available){        self.siriBtn.enabled = true;    }else{        self.siriBtn.enabled = false;    }}