如何在應用程序中使用iOS的內置文本語音功能？

Question

我正在構建一個幫助學生學習外語的應用程序。我注意到當我在設置的「輔助功能」菜單中打開「說話選擇」時，iPhone可以在Safari中閱讀外語文本。是否有可能以編程方式讓手機中的內置文本到語音軟件讀取正在UIView中顯示的外部單詞（NSString）？

Answer 1

我也試圖在我的應用程序中實現TTS，我試圖用一些SDK實現它，但我不能。現在我正在使用GOOGLE TRANSLATE API [「http://www.translate.google.com/translate_tts?tl=en&q=%@」，text「]。它會隱藏您的文本，併爲您提供一個音頻文件，您需要在將文件存儲在Document目錄中後運行該音頻文件[或按照自己的喜好] 。只要使用該代碼。希望這將有助於。

//Conversion using Google TTS API 
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
    NSString *documentsDirectory = [paths objectAtIndex:0]; 
    NSString *path = [documentsDirectory stringByAppendingPathComponent:@"file.mp3"]; 

    NSString *text = textToConvert.text; 
    NSString *urlString = [NSString stringWithFormat:@"http://www.translate.google.com/translate_tts?tl=en&q=%@",text]; 
    NSURL *url = [NSURL URLWithString:[urlString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]]; 
    NSMutableURLRequest* request = [[NSMutableURLRequest alloc] initWithURL:url]; 
    [request setValue:@"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0.1) Gecko/20100101 Firefox/4.0.1" forHTTPHeaderField:@"User-Agent"]; 
    NSURLResponse* response = nil; 
    NSError* error = nil; 
    NSData* data = [NSURLConnection sendSynchronousRequest:request 
             returningResponse:&response 
                error:&error]; 
    [data writeToFile:path atomically:YES]; 


    NSError  *err; 
    if ([[NSFileManager defaultManager] fileExistsAtPath:path]) 
    { 
//  player = [[AVAudioPlayer alloc] initWithContentsOfURL: 
//     [NSURL fileURLWithPath:path] error:&err]; 
////  player.volume = 0.4f; 
//  [player prepareToPlay]; 
////  [player setNumberOfLoops:0]; 
//  [player play]; 


     player = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:path] error:&err]; 
//  player.delegate = self; 

     [player prepareToPlay]; 
     [player play]; 
    }