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Hello,I am working on a time table app for students. It will get new data from a webserver and use Core Data to save data locally.Also I heard that you should use NSManagedContexts only from the thread where you created them.I will have two objects that access Core Data, the webclient and the UI. The webclient will download the data and save it into Core Data, the UI will only read the saved data. The save and write operations will happen asynchronously.My plan is the following:1. Create a class that superviews all Data relevant operations (DataManager).2. The DataManager has an own private concurrent queue.3. It also has one NSManagedContext instance.4. All CoreData related operations will be executed in the DataManager in dispatch_asyc, dispatch_sync (read-operations) and dispatch_barrier (write-operations) closures.Data downloading procedure:1. Download the data (background queue)2. in a dispatch_barrier block that runs on the DataManger queue:2a. create NSManagedObjects2b. save the NSManagedConte

Which Process runs by default as soon as user logs in ?

So, I downloaded Xcode 7 and installed it to be able to use free provisioning to test my app on an iPhone running iOS 8.3 before subscribing to the developer program. Connecting my iPhone, I see it in the toolbar and on the device list in Devices window.I also added my Apple ID in the Preferences' Accounts Tab and it shows Free under iOS and Mac next to my name. Nevertheless when hitting the play/build-and-run button Xcode at first starts building the app but before transferring, I guess, it stops and tells me it was Unable to find a team with the given Team ID '<My ID>' to which you belong. Please contact Apple Developer Program Support. https://developer.apple.com/support, any suggestions what to do?I removed and added my account several times, getting the same message all of the times.

After downloading the Pre-Release Beta of OSX El Capitan I started the installation process and went to the kitchen to take care of some dishes. When I got back to my computer it was in an infinite reboot loop. What to do?! It's a MacBook Air 13 Mid 2012 Cheers!

I've downloaded the .dmg, copied to Applications, waited for the verification - said 'open' once the verification is done then Xcode crashes. I'm running 10.10.3 which I think should work. I've tried uninstalling, re-downloading and re-doing the process with not luck. Has anyone else encountered this problem? Thanks.This is the error:Process: Xcode [396]Path: /Applications/Xcode-beta.app/Contents/MacOS/XcodeIdentifier: com.apple.dt.XcodeVersion: 7.0 (8123.26)Build Info: IDEFrameworks-8123026000000000~7Code Type: X86-64 (Native)Parent Process: ??? [1]Responsible: Xcode [396]User ID: 501Date/Time: 2015-06-10 17:25:29.684 -0400OS Version: Mac OS X 10.10.3 (14D136)Report Version: 11Anonymous UUID: A4A041F0-414B-EB94-4B70-43B0C8715464Time Awake Since Boot: 320 secondsCrashed Thread: 0 Dispatch queue: com.apple.main-threadException Type: EXC_CRASH (SIGABRT)Exception Codes: 0x0000000000000000, 0x0000000000000000Application Specific Information:ProductBuildVersion: 7A120fASSERTION FAILURE in /Librar

Whenever I try and quickly do any of these tasks it takes literally forever going through forums. Absolute rubbish!! Why do I have to enter a Place for goodness sake?? Utter nonsense and a complete waste of time. Here's a revolutionary new idea for Apple. When I purchase a piece of music I can browse for a ringtone on my phone and find!! wow how easy would that be?? eh all that technology and you can't make it happen? why not??

Hi,After upgrading from Yosemite to El Capitan Beta, I tried to edit in /System/Library/LaunchDaemons/ssh.plist to change the default SSH port to a custom one. This is the process I've been using for a couple of years.The problem is that El Capitan doesn't allow me to change anything in this folder (not even with sudo). The folder and its files are marked as restricted' when I list the contents with ls -lO. The same folder listing in previous versions of OS X does not show restricted.Is this something new to OS X El Capitan? How can I edit files/folders that are restricted?Regards,Spencer

Hi, I'm using Xcode6 and created a test app for ipad. It compiles and runs fine in simulator. My next step is to distribute it using adhoc distribution mechanism. Here is what I've done1. Using Keychain Access to create a public/private key pair.2. Load it up into Developer Center to create a certificate, then download it.3. Add my ipad UUID under Devices.4. Create a adhoc provisioning profile by including my ipad in it, I only have one device in Member Center. Let's call the provision MyProv.5. Run the .cer file by double clicking it.6. Download the .mobileprovision file from Member Center to desktop. Then double click it.Now, in Xcode, under Build Setting, I change Provisioning Profile Debug and Release entry to point to MyProv, then run Product->Archive. When archiving the app, Xcode as me if I want to use my key created in step 1 above to sign the bundle. I allow it. I also choose to Save for ad hoc distribution when asked. In the summary page, I can see the Provisioning Profile column shows 'MyProv, t

NSString *phoneNumberString = @tel:1234567891;NSURL *phoneURL = [NSURL URLWithString:phoneNumberString];[[WKExtension sharedExtension]openSystemURL:phoneURL];This is the code I'm using to try to generate a phone call on the watch. I am unable to debug when using the device and It's not possible to generate a call on the simulator, but I do hit the breakpoint on the simulator. I don't see what is wrong. Can anyone see a problem or help? Thanks.