问题AVSpeechUtterance

Question

我正在尝试让AVSpeech说出字符串*中的两个NSString并将其传递给AVSpeech。但它是唯一传递给*组合字符串的*speekone。所以我只说了第一个字符串。不知何故，我声明的字符串是错误的，还是我需要更改我的方法？

- (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];