SwiftUI List performance

That's now how the whitelist will work, if you have say 20 GPS apps listed in your whitelist but the user only has 1 installed then your canOpenURL call would only return True for the 1 that they have installed.Apple wants to lock this down completely, they say this is to stop things like being able to log how many and what apps users have installed but the real recipients of this crackdown are services that use the canOpenURL for targeting ads based on what apps a user has installed.

I think you should check the KeyChain Access app again. The entry you're looking for won't be LaCie, but will likely contain the name that you gave to the drive - which may be the name that appears in Finder when it's plugged in. Either way, you can select All Items in the sidebar for each of the Keychains listed in the top left and then, each time you select a new keychain, scroll down the list looking for something that might be it.

Well, after I called SetupAssistantSpringboard a second time it allowed me to login into keychain. Nice. So there is only Messages and the App Store Login missing in my login journey. I realized that Messages in't even listed in Internet Accounts under iCloud. iCloud now is listed in Messages itsself, but deactivated. I can't activate because it wants me to log in (which won't work).

But actually it is, it displays in Keychain access caertificates list. Xcode doesn't allow me to import any profile files and something like this. I' ve tried all standart solutions: revoked certificates, provisioning files reinstalled it and all this. How to fix it?

But actually it is, it displays in Keychain access caertificates list. Xcode doesn't allow me to import any profile files and something like this. I' ve tried all standart solutions: revoked certificates, provisioning files reinstalled it and all this. How to fix it?

In addition to the information above, you might want to check out NSJSONSerialization in case you need interoperability with JSON-friendly components or services. A few pieces of documentation you might be interested in:Reading and Writing Property-List Data in the Property List Programming GuideCollections Programming TopicsArchives and Serializations Programming Guide

First time I needed to use NSBrowser. Pretty confusing API. The documentation in the NSBrowserDelegate protocol lists a bunch of methods that are incompatiable with eachother.Would probably be nicer if they just deprecated NSBrowser and replaced it with something new. I don't really like chicken dancing with delegate methods like this.I get Must implement browser:willDisplayCell:atRow:column: and either browser:numberOfRowsInColumn: or browser:createRowsForColumn:inMatrix:But there is the item API too, which draws double arrow indicators for branches, for some reason.

It seems like it would push the whole conformance-checking system further into runtime/dynamic territory. Protocol conformance is now dynamically checkable, but it can be relatively efficient because all objects of type X either will or will not be Y-compliant.Consider:Code region A: protocol Tweakable {} let a = [Int]() ... if a is Tweakable { ... } Code region B: extension Aray where T: Hashable: Tweakable {}The existence of region B makes [Int] tweakable and so should change A's behavior, even if they are in separate modules. To preserve correctness, the compiled code for A would have to run through some kind of runtime list of possible conformances and their type constraints in order to answer the is question.As it is now, you can in fact doextension Array: Tweakable {}But that information probably only has to be recorded in one place and is true for all Arrays, so the dynamic check is relatively efficient.I suppose the compiler or linker could generate some kind of cartesian product of all types

ArmySo on your iOS 9 beta 2 when you click on the Radio tab in Music are you seeing anything listed at all or a blank screen like I am ?Thanks

You could try using NSView in your toolbar and Auto Layout to center the control. That will give you much finer control than those flexible space items. If you open your main nib or storyboard and double-click on the toolbar to access the list of toolbar items, you can drop a view in there and use NSToolbarItem to host it in the toolbar. I've had trouble with the view failing to appear when placed directly in IB, so I'd recommend that you just place a container view in your toolbar item, create an outlet to it, place your segmented control in a separate top-level view in your nib or scene with another outlet, and insert the real view programmatically into the container you put in the toolbar. (Don't forget to set up your constraints and translatesAutoresizingMaskIntoConstraints property!)