Simo, Author at Simon Technology Blog

iPhone – Test Memory Management in Objective-C (iOS)

I am a little new to Objective-C, although I think I have a good grasp of memory management, but I want to familiarize myself with the best way to test it (if possible). < p>

I know two optio

September 23, 2021By Simo iPhone IOS, iPhone, management, Medium, memory, Objective, testLeave a Comment

iPad – UIDeviceorientationDidChangeNotification

I added an observer for UIDeviceOrientationDidChangeNotification, and the observer’s selector is orientationChanged: My app only supports left and right landscapes. If you rotate the iPad like turn

September 23, 2021By Simo Ipad accident, call, iPad, UIDeviceorientationDidchangeNotificationLeave a Comment

IPAD accessory communication via UART

We made a new accessory for iPad/iPhone, which should transmit commands to the iPad. We like to use UART (via an Apple protocol called Lingo). My research Indicates that I can only use USB (30PIN c

September 23, 2021By Simo Ipad Accessories, By UART, communication, iPad, OPADLeave a Comment

iPhone – How do I detect Touch on UIMageView in UiImageView?

I have a UIScrollview in my application, and I fill it with a large number of UI ImageViews for about 900. They are all very small and contain only two different images again and again. < p>

September 23, 2021By Simo iPhone Of the iPhone, Touch, UIIMAGEVIEWLeave a Comment

Only numbers are entered as the iPad keyboard

The UIKeyboardTypeNumberPad of the ipad.setting keyboard type displays the numeric keyboard, but the user can switch back to letters, and I have to display a numeric keyboard as the keyboard for th

September 23, 2021By Simo Ipad As, input, iPad, keyboard, numbers, onlyLeave a Comment

UISPLITVIEWCONTROLLER is not a rootview controller

I am building my first iPad application. One of my requirements is to handle UISplitviewcontroller and UINavigationController. Our proposed view hierarchy is (LoginView) -> UINavigationView(Landing

September 23, 2021By Simo Ipad controller, not, one, rootview, UisplitViewControllerLeave a Comment

Possible error on the iPad on UidocumentInteractionController: PresentPreViewanimated is not pushed into the navigation stack

iPad only: UIDocumentInteractionController presentPreviewAnimated is not pushed into the navigation stack, even when returning to the navigation controller from documentInteractionControllerViewCon

September 23, 2021By Simo Ipad Of PRESENTPREVIEWANIMATED, PRESentpreViewanimatedLeave a Comment

Author: Simo