我的代码用一种语言讲文本并切换到另一种语言（如有必要）。问题是，只说第一句话。我需要有可能用一种以上的语言说更多的句子。我需要不同的语言，这需要新的初始化。如果第一句话很短，它有时也会说第二句话。第三个从来没有说过。一个建议？
- (void) StartMyProgramm {
SpeakTextPrefix = @"This is the first Line";
SpeakTextTitle = @"De Titel van het boek is";
SpeakTextSuffix = @"Wie komme ich hier wieder raus";
if (![SpeakTextPrefix isEqual: @""]) {
[self speakText:SpeakTextPrefix];
} else if (![SpeakTextTitle isEqual: @""]) {
[self speakText:SpeakTextTitle];
} else if (![SpeakTextSuffix isEqual: @""]) {
[self speakText:SpeakTextSuffix];
}
}
- (void) speakText:(NSString *)textToSpeak {
if (![textToSpeak isEqual: @""]) {
//Recognize Language
NSArray *tagschemes = [NSArray arrayWithObjects:NSLinguisticTagSchemeLanguage, nil];
NSLinguisticTagger *tagger = [[NSLinguisticTagger alloc] initWithTagSchemes:tagschemes options:0];
[tagger setString:textToSpeak];
NSString *language = [tagger tagAtIndex:0 scheme:NSLinguisticTagSchemeLanguage tokenRange:NULL sentenceRange:NULL];
//Speak
AVSpeechSynthesisVoice *voice = nil;
AVSpeechUtterance *utterance = nil;
voice = [AVSpeechSynthesisVoice voiceWithLanguage:language];
utterance = [[AVSpeechUtterance alloc] initWithString:textToSpeak];
utterance.voice = voice;
utterance.rate = 0.3;
utterance.pitchMultiplier = 0.8;
[self.synthesizer speakUtterance:utterance];
}
}
- (void)speechSynthesizer:(AVSpeechSynthesizer *)synthesizer didFinishSpeechUtterance:(AVSpeechUtterance *)utterance {
if (![SpeakTextTitle isEqual: @""]) {
[self speakText:SpeakTextTitle];
SpeakTextTitle = @"";
} else if (![SpeakTextSuffix isEqual: @""]) {
[self speakText:SpeakTextSuffix];
SpeakTextSuffix = @"";
} else {
//do something else
}
}