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iOS 10 和Xcode8 一起創(chuàng)建 Siri 功能步驟詳解（OC寫的）

更新時間：2017年12月05日 14:56:29 作者：T0_JOIN

這篇文章主要介紹了iOS 10 和Xcode8 一起創(chuàng)建 Siri 功能（OC寫的）,本文分步驟給大家介紹的非常詳細(xì)，需要的朋友可以參考下

iOS 10 出來之后，我們開發(fā)者也可以使用類似Siri的功能。。讓我們來看看怎么使用吧，其實他是使用Siri里面的一個語音識別框架Speech framework。讓我們來看看一些主要的代碼吧。我們需要一個 UITextView 和 UIButton 就能體現(xiàn)了。

第一步：定義屬性

@interface ViewController () <SFSpeechRecognizerDelegate>
@property (strong, nonatomic) UIButton *siriBtu;
@property (strong, nonatomic) UITextView *siriTextView;
@property (strong, nonatomic) SFSpeechRecognitionTask *recognitionTask;
@property (strong, nonatomic)SFSpeechRecognizer *speechRecognizer;
@property (strong, nonatomic) SFSpeechAudioBufferRecognitionRequest *recognitionRequest;
@property (strong, nonatomic)AVAudioEngine *audioEngine;
@end

第二步：進(jìn)行語音識別檢測

- (void)viewDidLoad {
[super viewDidLoad];
NSLocale *cale = [[NSLocale alloc]initWithLocaleIdentifier:@"zh-CN"];
self.speechRecognizer = [[SFSpeechRecognizer alloc]initWithLocale:cale];
self.siriBtu.enabled = false;
_speechRecognizer.delegate = self;
[SFSpeechRecognizer requestAuthorization:^(SFSpeechRecognizerAuthorizationStatus status) {
bool isButtonEnabled = false;
switch (status) {
case SFSpeechRecognizerAuthorizationStatusAuthorized:
isButtonEnabled = true;
NSLog(@"可以語音識別");
break;
case SFSpeechRecognizerAuthorizationStatusDenied:
isButtonEnabled = false;
NSLog(@"用戶被拒絕訪問語音識別");
break;
case SFSpeechRecognizerAuthorizationStatusRestricted:
isButtonEnabled = false;
NSLog(@"不能在該設(shè)備上進(jìn)行語音識別");
break;
case SFSpeechRecognizerAuthorizationStatusNotDetermined:
isButtonEnabled = false;
NSLog(@"沒有授權(quán)語音識別");
break;
default:
break;
}
self.siriBtu.enabled = isButtonEnabled;
}];
self.audioEngine = [[AVAudioEngine alloc]init];
}

第三步：按鈕的點擊事件

- (void)microphoneTap:(UIButton *)sender {
if ([self.audioEngine isRunning]) {
[self.audioEngine stop];
[self.recognitionRequest endAudio];
self.siriBtu.enabled = YES;
[self.siriBtu setTitle:@"開始錄制" forState:UIControlStateNormal];
}else{
[self startRecording];
[self.siriBtu setTitle:@"停止錄制" forState:UIControlStateNormal];
}}

第四步：開始錄制語音，以及將語音轉(zhuǎn)為文字

-(void)startRecording{
if (self.recognitionTask) {
[self.recognitionTask cancel];
self.recognitionTask = 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(@"這里說明有的功能不支持");
}
self.recognitionRequest = [[SFSpeechAudioBufferRecognitionRequest alloc]init];
AVAudioInputNode *inputNode = self.audioEngine.inputNode;
SFSpeechAudioBufferRecognitionRequest *recognitionRequest;
self.recognitionRequest.shouldReportPartialResults = true;
self.recognitionTask = [self.speechRecognizer recognitionTaskWithRequest:self.recognitionRequest resultHandler:^(SFSpeechRecognitionResult * _Nullable result, NSError * _Nullable error) {
bool isFinal = false;
if (result) {
self.siriTextView.text = [[result bestTranscription] formattedString];
isFinal = [result isFinal];
}
if (error || isFinal) {
[self.audioEngine stop];
[inputNode removeTapOnBus:0];
self.recognitionRequest = nil;
self.recognitionTask = nil;
self.siriBtu.enabled = true;
}
}];
AVAudioFormat *recordingFormat = [inputNode outputFormatForBus:0];
[inputNode installTapOnBus:0 bufferSize:1024 format:recordingFormat block:^(AVAudioPCMBuffer * _Nonnull buffer, AVAudioTime * _Nonnull when) {
[self.recognitionRequest appendAudioPCMBuffer:buffer];
}];
[self.audioEngine prepare];
bool audioEngineBool = [self.audioEngine startAndReturnError:nil];
NSLog(@"%d",audioEngineBool);
self.siriTextView.text = @"我是小冰！😀Siri 冰，你說我聽";
}

最后一個代理方法：

-(void)speechRecognizer:(SFSpeechRecognizer *)speechRecognizer availabilityDidChange:(BOOL)available{
if(available){
self.siriBtu.enabled = true;
}else{
self.siriBtu.enabled = false;
}
}

這樣我們就可以實現(xiàn)Siri的功能了。

總結(jié)

以上所述是小編給大家介紹的iOS 10 和Xcode8 一起創(chuàng)建 Siri 功能步驟詳解（OC寫的），希望對大家有所幫助，如果大家有任何疑問請給我留言，小編會及時回復(fù)大家的。在此也非常感謝大家對腳本之家網(wǎng)站的支持！

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