小编Max*_*aev的帖子

我有一个问题,通过IOBluetooth框架列出所有设备.有没有办法不仅可以获得经典设备,还可以获得BLE设备？

我的代码是

let ioBluetoothManager = IOBluetoothDeviceInquiry(delegate: self)
var ioDevices = [IOBluetoothDevice]()
...
ioBluetoothManager?.start()
...

func deviceInquiryStarted(_ sender: IOBluetoothDeviceInquiry!) {
    print("started")
}
///
//IOBluetoothDeviceInquiryDelegate
///

func deviceInquiryDeviceFound(_ sender: IOBluetoothDeviceInquiry!, device: IOBluetoothDevice!) {
    print("found device")
    ioDevices.append(device)
    scrubber.reloadData()
    tableView.reloadData()
}

func deviceInquiryComplete(_ sender: IOBluetoothDeviceInquiry!, error: IOReturn, aborted: Bool) {
    print("completed")
}

我知道我可以用CoreBluetooth做到这一点,但我还需要过滤设备以符合某个标准.

从这个答案我知道我可以做到这一点,但答案缺乏细节.现在我只是获得经典蓝牙设备列表.

有人可以帮忙吗？

UPD:

现在我找到了.searchType方法kIOBluetoothDeviceSearchClassic和kIOBluetoothDeviceSearchLE常量.在viewDidLoad中,我执行了以下操作:

ioBlutoothmanager.searchType = IOBluetoothDeviceSearchLE.rawValue 但它仍然只能找到经典的设备.

UPD:

这段时间它的工作正常我没想到.它过滤了我不需要的所有设备,我没有AirPods来检查.

我在9.3更新中遇到此崩溃,在9.2上一切正常.它能是什么？通过任何来源登录时出现错误(登录通行证,VK,谷歌)

class AppDelegate: UIResponder, UIApplicationDelegate, GIDSignInDelegate {

var window: UIWindow?

private let settingsManager = SettingsManager.manager

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {

//  Googole Map
    GMSServices.provideAPIKey("-k")

    UINavigationBar.appearance().tintColor = #colorLiteral(red: 1, green: 1, blue: 1, alpha: 1)
    UINavigationBar.appearance().barTintColor = #colorLiteral(red: 0.2069905996, green: 0.2386507988, blue: 0.3337202668, alpha: 1)

    UITabBar.appearance().tintColor = #colorLiteral(red: 0.2069905996, green: 0.2386507988, blue: 0.3337202668, alpha: 1)

    let barFont = UIFont.systemFont(ofSize: 20)
    UINavigationBar.appearance().titleTextAttributes =  [NSForegroundColorAttributeName: #colorLiteral(red: 1, green: 1, blue: 1, alpha: 1), NSFontAttributeName: barFont]


    if settingsManager.isFirstStartApp …

我对编程很新,所以我有一个简单的问题.实际上,写作可以帮助我更快地识别问题.

无论如何,我有一个多个异步调用的应用程序,它们嵌套如下:

InstagramUnoficialAPI.shared.getUserId(from: username, success: { (userId) in

    InstagramUnoficialAPI.shared.fetchRecentMedia(from: userId, success: { (data) in

        InstagramUnoficialAPI.shared.parseMediaJSON(from: data, success: { (media) in

                guard let items = media.items else { return }
                self.sortMediaToCategories(media: items, success: {

                    print("success")

          // Error Handlers

看起来很可怕,但那不是重点.一旦我开始工作,我将调查Promise Kit.

我需要sortMediaToCategories等待完成然后重新加载我的集合视图.但是,在sortMediaToCategories我有另一个嵌套函数,它也是异步并且具有for循环.

func sortMediaToCategories(media items: [StoryData.Items],
                           success: @escaping (() -> Swift.Void),
                           failure: @escaping (() -> Swift.Void)) {

    let group = DispatchGroup()
    group.enter()


    for item in items {


        if item.media_type == 1 {

            guard let url = URL(string: (item.image_versions2?.candidates?.first!.url)!) …

尝试重置实体的父代或删除实体的父代时发生此崩溃。

这是当机报告

    Crashed Thread:        0  Dispatch queue: com.apple.main-thread

Exception Type:        EXC_CRASH (SIGABRT)
Exception Codes:       0x0000000000000000, 0x0000000000000000
Exception Note:        EXC_CORPSE_NOTIFY

Application Specific Information:
ProductBuildVersion: 9E145
ASSERTION FAILURE in /Library/Caches/com.apple.xbs/Sources/IDEPlugins/IDEPlugins-14133/IDECoreDataModeler/ModelEditor/EditorShared/XDDiagram/XDDiagramStorage.m:364
Details:  (graphic) should not be nil.
Object:   <XDDiagramStorage: 0x7fa373ec1b50>
Method:   -removeGraphic:
Thread:   <NSThread: 0x7fa36a619650>{number = 1, name = main}

关于我做错了什么的任何想法，或者如果这是Xcode错误，如何避免崩溃？

我 在项目中使用滑动菜单控制器窗格，但遇到了一些问题。当导航堆栈中有控制器并且我想向左滑动时，会出现汉堡菜单，而不是弹出控制器。这怎么能改变呢？有人可以指导我吗？

所以我知道这是一个非常基本的功能，您可以免费获得，但它在这里被覆盖。

我尝试关闭幻灯片菜单的平移手势，但它关闭了整个机制。

SlideMenuOptions.panGesturesEnabled = false

我也找到了handleLeftPanGesture(_ panGesture: UIPanGestureRecognizer)方法，如下所示：

open func isTargetViewController() -> Bool {
    // Function to determine the target ViewController
    // Please to override it if necessary
    guard let navController = navigationController else { return true }
    return navController.viewControllers.isEmpty
}

@objc func handleLeftPanGesture(_ panGesture: UIPanGestureRecognizer) {

    if !isTargetViewController() {
        navigationController?.popViewController(animated: true)
    }

    if isRightOpen() {
        return
    }

    switch panGesture.state {
        case UIGestureRecognizerState.began:
            if LeftPanState.lastState != .ended &&  LeftPanState.lastState != .cancelled &&  LeftPanState.lastState != …