如何检测两种不同的权限

Question

我有一个检测权限代码，首先是麦克风，然后是语音识别以打开新视图。但是下面的代码产生了错误，例如“从主线程访问引擎后，此应用程序正在从后台线程修改自动布局引擎。这可能导致引擎损坏和奇怪的崩溃。”

有谁知道吗？

 if (@available(iOS 10.0, *)) {
    [[AVAudioSession sharedInstance] requestRecordPermission:^(BOOL granted) {
        if (granted) {
         //   [self detechUserSpeechPermission];
       //     [self configureSpeechToTextView];
            [SFSpeechRecognizer requestAuthorization:^(SFSpeechRecognizerAuthorizationStatus status) {
                switch (status) {
                    case SFSpeechRecognizerAuthorizationStatusAuthorized:
                        [self configureSpeechToTextView];
                        break;
                    case SFSpeechRecognizerAuthorizationStatusDenied:
                        [self warnUserForSpeechPermission];
                        break;
                    case SFSpeechRecognizerAuthorizationStatusNotDetermined:
                        [self warnUserForSpeechPermission];
                        break;
                    case SFSpeechRecognizerAuthorizationStatusRestricted:
                        [self warnUserForSpeechPermission];
                        break;
                    default: break;
                } }];
        }
        else {
            [self warnUserForMicrophonePermission];
        }
    }];
} else {
    NSLog(@"low ios version");
}

Answer 1

尝试像下面的代码那样在主线程调用方法：

dispatch_async(dispatch_get_main_queue(), ^{
  [self configureSpeechToTextView];
});

如何检测两种不同的权限

How to detect two different kind permission

objective-c

ios

sfspeechrecognizer