SwiftUI List performance

In 10.11 (15A178w) in Mail, I'm trying to add an SMTP server in Mail > Preferences > [account] > ...SMTP > Edit SMTP server list. But the +/- buttons at the bottom are greyed out.Does anyone know of a workaround? Even a command-line hack?

My app contains images and videos, is there any regulation or license limit to publish it to China?

We got a problem that some iPhone can't make or receive calls after MDM profile installation.Proceeds in the following order:1. Call to this iPhone from another phone and connection established.2. Send MDM Push and mdmd started.3. We can see the Springboard warning. (which is not shown in normal iPhone (marked bold in the Logs below))4. MDM handshaking finished and mdmd stopped.5. Disconnect phone call.6. Try to make a phone call or receive a phone call again. but outgoing or receiving screen is not appeared.This problem disappears after reboot the device.Anyone seeing similar issue please comment, thank you.Logs:-----------------------------------------------------------------------------------------------------------------------------Jun 15 11:11:01 ChoiHo mdmd[1188] <Notice>: (Note ) MDM: mdmd starting...Jun 15 11:11:01 ChoiHo mdmd[1188] <Notice>: (Note ) MDM: Network reachability has changed.Jun 15 11:11:01 ChoiHo mdmd[1188] <Notice>: (Note ) MDM: Network reachability has changed.Jun 15

It's listed in the WWDC 2015 app but isn't actually available from the site.

I am experiencing frustration.I have posted a couple of times on the Swift forum.Every now and again I go back to the forum to see whether there is any new related activity. But the forum receives over a page of posts in a day, so it quickly becomes awkward to find my original posts.Is there some way I can list my posts chronologically? And maybe even see whether any of them has received new activity?On Stack Overflow I just click on my username and can instantly view all of my posts. It makes it extremely easy to subsequently retrieve information -- even a year later!π

Consider a protocol P with an associated type Q,protocol P { typealias Q init(_ q: Q) func flatMap(f: Q -> Self) -> Self // Composeable from init and flatMap func map(f: Q -> Self.Q) -> Self // ... There are many others }and a conforming generic type C<T>, where T is constrained to Qstruct C<T> : P { typealias Q = T private let t: T init(_ q: T) { self.t = q } func flatMap<A>(f: Q -> C<A>) -> C<A> { return f(t) } // Compose from init and flatMap func map<A>(f: T -> A) -> C<A> { return flatMap { C<A>(f($0)) } } }This workslet c1: C<Int> = C(42) // t = 42 let c2: C<String> = c1.map { ($0) is the answer } // t = 42 is the answerWith Swift 2.0, I'd expect to be able to use a protocol extension to share all combinators that can be composed from init and flatMapextension P { func map(f: Q -> Self.Q) -> Self { return flatMap { Self(f($0)) } } }But, on removing the implementation of map in C—to expose the shared version in the e

So I switched over my old EAGLView based code to use a GLKView.When I run the profiler with OpenGL ES Analysis, I get a warning about 'Logical Buffer Store.' 0 libglInterpose.dylib 0x100e88190 1 GLKit -[GLKView _resolveAndDiscard] 2 GLKit -[GLKView _display:] 3 GLKit -[GLKViewController _updateAndDraw] 4 libglInterpose.dylib 0x100f587fc 5 QuartzCore CA::Display::DisplayLinkItem::dispatch() 6 QuartzCore CA::Display::DisplayLink::dispatch_items(unsigned long long, unsigned long long, unsigned long long) 7 IOKit IODispatchCalloutFromCFMessage 8 CoreFoundation __CFMachPortPerform 9 CoreFoundation __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ 10 CoreFoundation __CFRunLoopDoSource1 11 CoreFoundation __CFRunLoopRun 12 CoreFoundation CFRunLoopRunSpecific 13 GraphicsServices GSEventRunModal 14 UIKit UIApplicationMain 15 dig main /Users/bram/apps/Proto/Dig/iOS/main.m:14 16 libdyld.dylib startOpenGL ES performed a logical buffer store operation. This is typically caused by switching framebuffer or

As a long-time emacs user, I love that OS X supports many basic emacs commands including Control-O (open-line). In almost all apps it works the same as emacs - inserting a newline at the cursor position and not moving the cursor. In XCode, Control-O is handled strangely - it behaves like the return key, then inserts a space after the cursor, which is inconsistent and not useful to me at least. There are several Insert Newline... choices in Key Bindings, but none of them perform the same operation as Control-O does in other Apple apps - Insert Newline without moving the cursor.Is there any way to get Control-O to behave the same in XCode as it does in every other app?Thanks,Dean

Hi,Is there a way for me to get GPU data such as current memory available vs total. % usage or characteristics that may indicate why on some devices rendering may end up being performed in software instead of in GPU.

When embedding the AVPlayerViewController in a container view in iOS9 beta 1 and start playing an audio track, I get this with latest beta. Anyone else able to reproduce?:2015-06-15 22:11:56.266 SampleRadio[860:521233] Unable to simultaneously satisfy constraints. Probably at least one of the constraints in the following list is one you don't want. Try this: (1) look at each constraint and try to figure out which you don't expect; (2) find the code that added the unwanted constraint or constraints and fix it. (Note: If you're seeing NSAutoresizingMaskLayoutConstraints that you don't understand, refer to the documentation for the UIView property translatesAutoresizingMaskIntoConstraints)( <NSLayoutConstraint:0x15cd8eb20 UIView:0x15cf58fc0.centerY == AVPictureInPictureIndicatorView:0x15cf58a10.centerY + 10>, <NSLayoutConstraint:0x15cd8ed50 V:[UIView:0x15cf58fc0]-(>=10)-| (Names: '|':AVPictureInPictureIndicatorView:0x15cf58a10 )>, <NSLayoutConstraint:0x15cd8efa0 V:|-(0)-[UIImageView:0x