Ios 等待AVSpeechSynthesiser完成讲话

我正在编写一个应用程序，允许用户在听到他们想要关注的web链接时按下按钮

问题是，我使用的for循环将所有文本添加到话语列表中，而不是等到话语完成后再继续，这意味着我无法说出他们想要遵循的链接

我有一门课叫

讲话

作为AvSpeechSynthesizer的代表，我尝试创建自己的方式来确定话语何时结束：

-(id)init {
self = [super init];
if (self) {
    _synthesiser = [[AVSpeechSynthesizer alloc]init];
    [self setSpeaking:NO];
}
return self; 
}

-(void)outputAsSpeech:(NSString *)text
{
[self setSpeaking:YES];
[[self synthesiser]speakUtterance:[[AVSpeechUtterance alloc]initWithString:text]];
}

-(BOOL)isSpeaking
{
return [self speaking];
}

-(void)speechSynthesizer:(AVSpeechSynthesizer *)synthesizer didFinishSpeechUtterance:(AVSpeechUtterance *)utterance
{
[self setSpeaking:NO];
}

在课堂上

视图控制器

-（无效）readBookmarks
{
[[自言自语]继续思考]；
[[self speech]输出语音：@“书签，”；
对于（[self bookmarksPointer]；[self bookmarksPointer]<[self bookmarks]count]；[u bookmarksPointer++）{
NSDictionary*dictionary=[[self bookmarks]objectAtIndex:[self bookmarksPointer]]；
[[self speech]outputAsSpeech:[dictionary objectForKey:@“title”]；
而（[[自言自语]在说话]{}
}
}

当时的想法是，应用程序应该等到发出声音后再继续。但现在它读出“Bookmarks”，然后停止，它甚至没有读出第一个书签，我还尝试将while循环放在for循环的开头

谁能帮帮我，我会非常感激的

---

谢谢

因此，在拼命寻找答案之后，我意识到我没有将合成器的委托设置为“self”。（我恨我自己！）

然而，这并没有解决我的问题，出于某种原因，这仍然不起作用。我发现语音合成器：didFinishSpeakingUtterance:从未被调用

因此，我给我的语音对象发送了一个字符串数组，我想让它说出并在该对象中跟踪它们，然后我添加了一个方法来返回合成器当前所说文本数组中的位置：

讲话

-（id）init
{
self=[super init]；
如果（自我）{
_合成器=[[AVSpeechSynthesizer alloc]init]；
[[self synthesiser]setDelegate:self]；
[自设置峰值：否]；
}
回归自我；
}
-（void）outputAsSpeech:（NSArray*）textary
{
[self-setTextToBeSpoken:textary]；
[自设置阵列指针：0]；
[[self-Synthesizer]SpeakOutstance:[[AvSpeechOutstance alloc]initWithString:[[self-TextToSpoken]objectAtIndex:[self-arrayPointer]]]；
}
-（void）speechSynthesizer:（AVSpeechSynthesizer*）合成器完成speechoutrance:（avspeechoutrance*）outrance
{
_arrayPointer++；
如果（[self arrayPointer]<[self textToBeSpoken]计数]）{
[[self-Synthesizer]SpeakOutstance:[[AvSpeechOutstance alloc]initWithString:[[self-TextToSpoken]objectAtIndex:[self-arrayPointer]]]；
}
}
-（int）正在讲话的字符串
{
返回[自阵列指针]；
}

视图控制器

-（无效）readBookmarks
{
[[自言自语]继续思考]；
NSMutableArray*textToSpeak=[[NSMutableArray alloc]init]；
对于（int i=0；i<[self bookmarks]count]；i++）{
NSDictionary*dictionary=[[self bookmarks]objectAtIndex:i]；
NSString*textToRead=[dictionary objectForKey:@“title”]；
[textToSpeak addObject:textToRead]；
}
[[self speech]outputAsSpeech:textToSpeak]；
}
-（无效）目前正在讲话
{
NSDictionary*dictionary=[[self bookmarks]objectAtIndex:[[self speech]stringbeingspeaked]]；
NSLog（[dictionary objectForKey:@“title”]）；
}

当您单步执行for循环时会发生什么？NSDictionary值是多少？objectForKey值呢？它们都得到了正确的结果，我知道它从每个NSDictionary中得到了正确的文本。

-(void)readBookmarks
{
[[self speech]continueSpeech];
[[self speech]outputAsSpeech:@"Bookmarks,"];
for ([self bookmarksPointer]; [self bookmarksPointer] < [[self bookmarks]count]; _bookmarksPointer++) {
    NSDictionary* dictionary = [[self bookmarks]objectAtIndex:[self bookmarksPointer]];
    [[self speech]outputAsSpeech:[dictionary objectForKey:@"title"]];
    while ([[self speech]isSpeaking]) {}
    }
}

-(id)init
{
self = [super init];

if (self) {
    _synthesiser = [[AVSpeechSynthesizer alloc]init];
    [[self synthesiser]setDelegate:self];
    [self setSpeaking:NO];
    }
return self;
}

-(void)outputAsSpeech:(NSArray*)textArray
{
[self setTextToBeSpoken:textArray];
[self setArrayPointer:0];
[[self synthesiser]speakUtterance:[[AVSpeechUtterance alloc]initWithString:[[self textToBeSpoken]objectAtIndex:[self arrayPointer]]]];
}

-(void)speechSynthesizer:(AVSpeechSynthesizer *)synthesizer didFinishSpeechUtterance:(AVSpeechUtterance *)utterance
{
_arrayPointer++;
if ([self arrayPointer] < [[self textToBeSpoken]count]) {
    [[self synthesiser]speakUtterance:[[AVSpeechUtterance alloc]initWithString:[[self textToBeSpoken]objectAtIndex:[self arrayPointer]]]];
    }
}

-(int)stringBeingSpoken
{
return [self arrayPointer];
}

-(void)readBookmarks
{
[[self speech]continueSpeech];
NSMutableArray* textToSpeak = [[NSMutableArray alloc]init];
for (int i = 0; i < [[self bookmarks]count]; i++) {
    NSDictionary* dictionary = [[self bookmarks]objectAtIndex:i];
    NSString* textToRead = [dictionary objectForKey:@"title"];
    [textToSpeak addObject:textToRead];
    }
[[self speech]outputAsSpeech:textToSpeak];
}

-(void)currentlyBeingSpoken
{
    NSDictionary* dictionary = [[self bookmarks]objectAtIndex:[[self speech]stringBeingSpoken]];
    NSLog([dictionary objectForKey:@"title"]);
}