I am new in using Pedometer Function. I have this task wherein I need to create condition in this problem below. I am stuck for almost a week on how I will add condition if the device is iPad and if the Coremotion is not available for the os version of the...

我的React Native App的功能包括对文档照片进行透视校正。 它需要4个点，裁剪图像，透视校正它，然后应用CIFilter调整颜色并导出为Base64 String。 我们试图在iPhone 11模拟器上运行它 截至目前，我们一直收到此错误 attempt to insert nil object from objects[0] Assumption: It is probably happening because it can't read the image from file stora...

我对此感到沮丧。 即使在Simulator或Device上以调试模式运行时，这也是正常的。 然后，我试图管理它的释放模式，但它立即关闭，但在JS端没有给出任何错误。它可能在本机代码上，但我不了解如何处理它。 我从xcode中获取了日志>窗口>设备和模拟器>手机>查看日志>错误日志 这是日志： Date/Time: 2020-04-28 18:41:59.4120 +0700 Launch Time: 2020-04-28 18:41:58.1507 +0700 OS Ve...

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I'm using CardsCollectionViewLayout in my code via Swift Bridging for my CollectionView. Objective-C（无效） My issue is that IndexPath is returning wrong Item index. Here is the minimal code: - (void)viewDidLoad { [super viewDidLoad]; self.collectio...

我想结合语音和语音识别器功能。我进行了问卷调查，并提出了一些问题并为帮助用户选择选项，我添加了UIAccessibilityCustomAction，因此当用户准备选择时，他选择了此操作，这又激活了语音识别功能，他发音了所选选项，并在UI更新后发音。 - (void)startRecognizingProcess { __weak typeof(self) weakSelf = self; self.audioEngine = [[AVAudioEngine alloc] init]; ...

Detect and track faces from the selfie cam feed in real time. I could get that based on source :- https://developer.apple.com/documentation/vision/tracking_the_user_s_face_in_real_time. The following image show that rectangle will be placed in face, 如您所见，...

我试图通过创建appdelegate.swift（当然删除这些文件）将appdelegate.h .m和main.m（目标c文件）转换为swift，但是当我这样做时，该应用程序在启动时会出现黑屏 这是main.m代码 #import <UIKit/UIKit.h> #import "AppDelegate.m" int main(int argc, char * argv[]) { @autoreleasepool { return UIApplicationMain(argc, argv, nil,...