iOS 設置錄音權限

1.問題描述：在首次進入控制器就彈出是否允許開啟麥克風的權限提示，如果選擇不允許，可在下次調用時提示用戶去“設置”頁面進行再次開啟；

2.代碼

+ (BOOL)checkPermission{
    
//    AVAudioSessionRecordPermission permission = [[AVAudioSession sharedInstance] recordPermission];
//    return permission == AVAudioSessionRecordPermissionGranted;
    __block BOOL bCanRecord = YES;
    if ([[[UIDevice currentDevice]systemVersion]floatValue] >= 7.0) {
        AVAuthorizationStatus videoAuthStatus = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeAudio];
         if (videoAuthStatus == AVAuthorizationStatusNotDetermined) {// 未詢問用戶是否授權
             AVAudioSession *audioSession = [AVAudioSession sharedInstance];
             if ([audioSession respondsToSelector:@selector(requestRecordPermission:)]) {
                 [audioSession performSelector:@selector(requestRecordPermission:) withObject:^(BOOL granted) {
                     if (granted) {
                         bCanRecord = YES;
                     } else {
                         bCanRecord = NO;
                     }
                 }];
             }
         } else if(videoAuthStatus == AVAuthorizationStatusRestricted || videoAuthStatus == AVAuthorizationStatusDenied) {
            // 未授權
            [self showSetAlertView];
        } else{
            // 已授權
            NSLog(@"已授權");
        }
    }
    return bCanRecord;
}

//提示用戶進行麥克風使用授權
+ (void)showSetAlertView {
    
    [LGAlert alertWithTitle:@"麥克風權限未開啟" message:@"麥克風權限未開啟,請進入系統【設置】>【隱私】>【麥克風】中打開開關,開啟麥克風功能" cancelTitle:@"取消" cancelBlock:^{
    } confirmTitle:@"去設置" confirmBlock:^{
        //跳入當前App設置界面
        [[UIApplication sharedApplication] openURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]];
    }];
};

 

3.參考的主要網址：https://www.jianshu.com/p/e952ef3e33bc