发出 AVSpeechUtterance

Question

我试图让 AVSpeech 说出字符串 *combine 中的两个 NSString 并将其传递给 AVSpeech。但只有 *speekone 被传递给 *combine 字符串。所以我只说出第一个字符串。我是在以某种方式声明字符串错误还是需要更改方法？

- (IBAction)UIButtonPlayPressed:(UIButton *)sender{
NSString *speekone = _activity.activityName;
NSString *speektwo = _activity.activityDescription;
NSString *combined = [NSString stringWithFormat:speekone, speektwo];

if (speechPaused == NO) {
//Title for button    [self.UIButtonPlay setTitle:@"Pause" forState:UIControlStateNormal];
    [self.synthesizer continueSpeaking];
    speechPaused = YES;
    NSLog(@"playing");
} else {
//Titleforbutton    [self.UIButtonPlay setTitle:@"Play" forState:UIControlStateNormal];
    speechPaused = NO;
    [self.synthesizer pauseSpeakingAtBoundary:AVSpeechBoundaryImmediate];
    NSLog(@"paused");

}
if (self.synthesizer.speaking == NO) {
    AVSpeechUtterance *utterance = [[AVSpeechUtterance alloc] initWithString:combined];
[self.synthesizer speakUtterance:utterance];

Answer 1

stringWithFormat 的第一个参数不是格式说明符。

这一行：

NSString *combined = [NSString stringWithFormat:speekone, speektwo];

应该变成：

NSString *combined = [NSString stringWithFormat:@"%@ %@", speekone, speektwo];