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Hi i get an error   [TableView] Warning once only: UITableView was told to layout its visible cells and other contents without being in the view hierarchy (the table view or one of its superviews has not been added to a window). This may cause bugs by forcing views inside the table view to load and perform layout without accurate information… (Show more)
in Cocoa Touch
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I am trying to develop the "Concentration" game following the Stanford Swift lessons on iTunes U. But I find that I can't make the card flip over. When I click the card, nothing just happens. But it's supposed to return a question mark "?". Could anybody help me out? Here are my codes:
in Swift
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Hello,   The app is in production/testfilght and I have seen this crash in Xcode Organizer. The highest percentage of such crashes.   It is happening on some of the devices that run iOS 13.0 ~ 13.3.   So I suppose it is happening while lunching the app.   One of the crash reports is on:… (Show more)
in Debugger
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Hi, I am implementing VPN using NEPacketTunnelProvider. When I a trying to make handshake with server I created NWUDPSession send UDP packet, server recived this packet and send response but I can't get this response as reader handler not called. It looks like some settings are wrong. I am creating UDP in next way (self.createUDPSession(to:… (Show more)
in Networking
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Hello, our mac app is developed based on the qt framework, and the software uses qwebkit technology internally. Before February 3rd, after our software was signed and notarized, it could run on mac 10.15 normally. After February 3rd, before the software is signed and notarized, the software can run normally on mac 10.15, but after the software is… (Show more)
in Mac Apps
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I've started to get this issue recently. As a part of the build process, my build script calls 'xcrun altool --notarize-app' command to upload application package (inside disk image - DMG) for notarization. But approximately only 1 of 3-4 attempts complete successfully, as expected. All others lead to this output:   [2020-02-07 14:30:48.602… (Show more)
in Mac Apps
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I am working on show weather project. I am listing the cities from database. When I click on a city, another viewcontroller should open. But when I click on a city, the didSelectRowAtIndexPath function does not work. Here is the my code: import UIKit… (Show more)
in Swift
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Hi all,   I have a java application based on the Eclipse RCP Mars. I am trying to sign my app:   codesign  -s 'Some Developer ID Application' MyApp.app  During notarization I am getting the next error: "statusSummary": "Archive contains critical validation errors",… (Show more)
in Mac Apps
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Hello,   I am using the secure enclave to generate an EC keypair. Now my question is, when are the keys deleted? Because when I uninstall my application and install it again, the key is still available. I can't find anything in the documentation that would explain how it should behave. Can I count on it, that once I have created a key-pair, that… (Show more)
in Security
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