Apple Development: iOS, macOS, Swift, Dylan

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haveblue: Aug 15, 2005; Toilet Rascal

I'm trying to enable accessibility labels for a tableview that's a child of a second tableview and there doesn't seem to be any way to do this. The built-in traversal doesn't seem to see the child at all, and attempting to use UIAccessibilityContainer to manually expose the second table not only doesn't work but breaks the accessibility of other non-table child views.

Is there any way at all to do this? I know table views are not supposed to be children of each other but I was able to find workarounds for the other issues that came up.

# ? May 28, 2014 20:13

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# ? May 17, 2024 14:04

pokeyman: Nov 26, 2006; That elephant ate my entire platoon.

haveblue posted:

I'm trying to enable accessibility labels for a tableview that's a child of a second tableview and there doesn't seem to be any way to do this. The built-in traversal doesn't seem to see the child at all, and attempting to use UIAccessibilityContainer to manually expose the second table not only doesn't work but breaks the accessibility of other non-table child views.

Is there any way at all to do this? I know table views are not supposed to be children of each other but I was able to find workarounds for the other issues that came up.

I'm guessing UITableView implements UIAccessibilityContainer to expose cells (and deal with cell reuse etc.) and that implementation is probably messing you up. Implementing UIAccessibilityContainer yourself is probably the right way to go, but then you're responsible for replicating everything that UIView and UITableView do themselves.

# ? May 28, 2014 20:16

haveblue: Aug 15, 2005; Toilet Rascal

I thought that as well, but it doesn't seem to be that simple. I can see it querying for the accessibility elements related to the table, and that it stops its search when it locates the correct one that was tapped on, but once the accessibility element is returned it doesn't do anything it with- there's no response from the UI or the inspector.

# ? May 28, 2014 21:02

LP0 ON FIRE: Jan 25, 2006; _{beep boop}

I can across a leak in my app that I'm working on, and I realized I could be doing something very fundamentally wrong. I'm creating an instance of a subclass in another class and allocating an object from the instance that's unique to that subclass and not it's super. I'm not entirely sure what the leak is being caused by, because I might have a misunderstanding about how it can be allocated (and where), and how it can deallocated. I've been using Obj-C for a while and it kind of freaks me out that I may have been doing this wrong.

I'm not using ARC because it's pre-ARC and fairly large, depends on stuff that doesn't use it, etc.

I have a pretty detailed explanation on StackOverflow: http://stackoverflow.com/questions/23938669/obj-c-allocating-a-subclassed-object-from-another-object-and-releasing

# ? May 29, 2014 19:02

Doctor w-rw-rw-: Jun 24, 2008

LP0 ON FIRE posted:

I can across a leak in my app that I'm working on, and I realized I could be doing something very fundamentally wrong. I'm creating an instance of a subclass in another class and allocating an object from the instance that's unique to that subclass and not it's super. I'm not entirely sure what the leak is being caused by, because I might have a misunderstanding about how it can be allocated (and where), and how it can deallocated. I've been using Obj-C for a while and it kind of freaks me out that I may have been doing this wrong.

I'm not using ARC because it's pre-ARC and fairly large, depends on stuff that doesn't use it, etc.

I have a pretty detailed explanation on StackOverflow: http://stackoverflow.com/questions/23938669/obj-c-allocating-a-subclassed-object-from-another-object-and-releasing

Objective-C code:

[[NSArray alloc] initWithArray:finalArray];

I know of no reason this should not be [finalArray copy]. Same essential meaning but saves memory when your NSArray is already immutable.

StackOverflow question posted:

NSArray instance variable

Uh, tempClassB.myNSArray looks like a property access, not an ivar. What does your property declaration look like?

---

Anyways, the usual rule is that the retain-release pairs should always match within the same class. If Class M +1's an NSArray, it should -1 it in class M. Likewise for Class B. So assuming your property is well-behaved, when you do "tempClassB.myNSArray = [finalArray copy];" or "tempClassB.myNSArray = [[NSArray alloc] initWithArray:finalArray];", you're +1'ing it in M, and your property setter is +1'ing it in B. Without a matching autorelease in M, you do indeed have a leak.

Make your myNSArray use @property (nonatomic, copy, ...etc,whatever) NSArray *myArray;, then just change it to tempClassB.myNSArray = finalArray. Or if you really need to copy/re-allocate an array, autorelease it in M.

# ? May 29, 2014 19:20

LP0 ON FIRE: Jan 25, 2006; _{beep boop}

Thanks Doctor. I totally used the wrong terminology there, and I need to get better at that. I don't know what I was thinking of allocating it there (M) and somehow have it allocate in B. Allocating it in B, works fine now.

# ? May 29, 2014 19:49

Doctor w-rw-rw-: Jun 24, 2008

LP0 ON FIRE posted:

Thanks Doctor. I totally used the wrong terminology there, and I need to get better at that. I don't know what I was thinking of allocating it there (M) and somehow have it allocate in B. Allocating it in B, works fine now.

That's vague enough that I'm not totally sure you're doing it The Right Way�, but I hope that you are. You shouldn't need to allocate an array in B at all. If your property in B has the 'copy' attribute it should just retain an NSArray (and copy it when it's an NSMutableArray, leaving the original alone).

# ? May 29, 2014 20:11

LP0 ON FIRE: Jan 25, 2006; _{beep boop}

Doctor w-rw-rw- posted:

That's vague enough that I'm not totally sure you're doing it The Right Way�, but I hope that you are. You shouldn't need to allocate an array in B at all. If your property in B has the 'copy' attribute it should just retain an NSArray (and copy it when it's an NSMutableArray, leaving the original alone).

Thanks, because I still wasn't doing it right.

So I was eventually trying the right way, and it kept reporting a leak on a commented out line. I had to close the Instruments window, Profile, and click leaks again. I guess this is normal protocol because it analyzes the code once when it profiles, and never after you make changes in the code, until you go up to the menu and click Profile again.

# ? May 29, 2014 20:30

Doctor w-rw-rw-: Jun 24, 2008

LP0 ON FIRE posted:

Thanks, because I still wasn't doing it right.

So I was eventually trying the right way, and it kept reporting a leak on a commented out line. I had to close the Instruments window, Profile, and click leaks again. I guess this is normal protocol because it analyzes the code once when it profiles, and never after you make changes in the code, until you go up to the menu and click Profile again.

I suggest installing DerivedData Exterminator via Alcatraz and clicking that button often and with extreme prejudice.

# ? May 29, 2014 21:14

LP0 ON FIRE: Jan 25, 2006; _{beep boop}

Doctor w-rw-rw- posted:

I suggest installing DerivedData Exterminator via Alcatraz and clicking that button often and with extreme prejudice.

Will do. Thank you!

I've also had problems with building and still reporting errors/warnings, even though there aren't any, so hopefully it will help that too.

# ? May 29, 2014 21:21

Hughlander: May 11, 2005

Who's up for WWDC goon meet? PM me with contact details.

# ? May 30, 2014 02:31

Doctor w-rw-rw-: Jun 24, 2008

Hughlander posted:

Who's up for WWDC goon meet? PM me with contact details.

I am! PM'd.

# ? May 30, 2014 03:05

Doctor w-rw-rw-: Jun 24, 2008

I feel like I'm missing something obvious, but setting scroll insets don't seem to have any effect.

How do have a (non-sticky) section header in a UICollectionView (with a flow layout) which starts offscreen, i.e. on initial display, the header is hidden?

# ? May 30, 2014 19:12

Echo Video: Jan 17, 2004

Doctor w-rw-rw- posted:

I feel like I'm missing something obvious, but setting scroll insets don't seem to have any effect.

How do have a (non-sticky) section header in a UICollectionView (with a flow layout) which starts offscreen, i.e. on initial display, the header is hidden?

Assuming this is the first section, can you set contentOffset to have the collection view scrolled down a bit initially?

also: some of you dinguses work at facebook, right? I'm interviewing there sometime next month.

# ? May 30, 2014 19:21

pokeyman: Nov 26, 2006; That elephant ate my entire platoon.

Doctor w-rw-rw- posted:

I feel like I'm missing something obvious, but setting scroll insets don't seem to have any effect.

How do have a (non-sticky) section header in a UICollectionView (with a flow layout) which starts offscreen, i.e. on initial display, the header is hidden?

After loading the collection view, set its contentOffset.y to the height of the header.

If the collection view is shorter than its bounds's height you can pad out the difference with a bottom contentInset. You'll want to recalculate that inset whenever the contents change or the bounds change, otherwise someone could scroll the whole contents off the screen.

# ? May 30, 2014 19:24

Doctor w-rw-rw-: Jun 24, 2008

Okay, so I'm not insane, and I was doing it the right way, I just forgot that I'm resetting the scrollView's contentInsets externally since I'm doing some scrollview gesture recognizer hacking mixed with a contained UINavigationController, mixed with using Pop for animations.

# ? May 30, 2014 19:32

pokeyman: Nov 26, 2006; That elephant ate my entire platoon.

Doctor w-rw-rw- posted:

Okay, so I'm not insane, and I was doing it the right way, I just forgot that I'm resetting the scrollView's contentInsets externally since I'm doing some scrollview gesture recognizer hacking mixed with a contained UINavigationController, mixed with using Pop for animations.

I've set more than a few breakpoints on -[UIScrollView setContentOffset:animated:] to see what the hell was going on.

# ? May 30, 2014 19:44

Axiem: Oct 19, 2005; I want to leave my mind blank, but I'm terrified of what will happen if I do

Quiet in this thread today...I guess we're all on pilgrimage to WWDC?

# ? Jun 1, 2014 19:26

Simulated: Sep 28, 2001; Lowtax giveth, and Lowtax taketh away.; College Slice

Axiem posted:

Quiet in this thread today...I guess we're all on pilgrimage to WWDC?

Or wallowing in self-pity; this is my third or fourth attempt to get tickets that failed.

# ? Jun 2, 2014 04:16

ManicJason: Oct 27, 2003; He doesn't really stop the puck, but he scares the hell out of the other team.

Or preparing for a first job interview in three years. Good thing I'm not sold on moving to SF for this job or even doing full time work, so it's not stressful. Contract work looks pretty appealing short term. It's nice having that as a baseline to which to compare any job opportunity.

Who am I kidding? I'm also wallowing in self pity.

# ? Jun 2, 2014 04:35

Doctor w-rw-rw-: Jun 24, 2008

I'm using my boss's ticket, so my self-pity will be conditional on being able to get in the building. I forget - do they check IDs? Or just badges?

# ? Jun 2, 2014 04:50

Subjunctive: Sep 12, 2006; ✨sparkle and shine✨

I'm pretty sure Apple has advised us to share badges in the past. I know we've done so, certainly.

# ? Jun 2, 2014 05:23

HiriseSoftware: Dec 3, 2004; Two tips for the wise:
1. Buy an AK-97 assault rifle.
2. If there's someone hanging around your neighborhood you don't know, shoot him.

Edit: Wrong thread!

HiriseSoftware fucked around with this message at 06:27 on Jun 2, 2014

# ? Jun 2, 2014 06:20

Hughlander: May 11, 2005

Doctor w-rw-rw- posted:

I'm using my boss's ticket, so my self-pity will be conditional on being able to get in the building. I forget - do they check IDs? Or just badges?

You need id to pick up the badge after that it's just that you have one.

# ? Jun 2, 2014 06:25

Doh004: Apr 22, 2007; Mmmmm Donuts...

Ender.uNF posted:

Or wallowing in self-pity; this is my third or fourth attempt to get tickets that failed.

Ding ding ding ding ding!

:saddowns:

# ? Jun 2, 2014 14:11

lord funk: Feb 16, 2004

Yeah I'm waiting for the relentless despair to let up, but that's not happening. Stupid lottery. :/

# ? Jun 2, 2014 15:48

kitten smoothie: Dec 29, 2001

https://github.com/WebKit/webkit/blob/master/Source/WebKit2/UIProcess/API/Cocoa/WKWebView.h

A UIWebView replacement in 10.10 and iOS 8?

code:

#if TARGET_OS_IPHONE
WK_CLASS_AVAILABLE(10_10, 8_0)
@interface WKWebView : UIView
#else
WK_CLASS_AVAILABLE(10_10, 8_0)
@interface WKWebView : NSView
#endif

# ? Jun 2, 2014 17:20

Simulated: Sep 28, 2001; Lowtax giveth, and Lowtax taketh away.; College Slice

ManicJason posted:

Or preparing for a first job interview in three years. Good thing I'm not sold on moving to SF for this job or even doing full time work, so it's not stressful. Contract work looks pretty appealing short term. It's nice having that as a baseline to which to compare any job opportunity.

Who am I kidding? I'm also wallowing in self pity.

Haven't heard anything from Apple; they must not be hurting for people that badly.

# ? Jun 2, 2014 17:25

pokeyman: Nov 26, 2006; That elephant ate my entire platoon.

kitten smoothie posted:

https://github.com/WebKit/webkit/blob/master/Source/WebKit2/UIProcess/API/Cocoa/WKWebView.h

A UIWebView replacement in 10.10 and iOS 8?
code:
#if TARGET_OS_IPHONE
WK_CLASS_AVAILABLE(10_10, 8_0)
@interface WKWebView : UIView
#else
WK_CLASS_AVAILABLE(10_10, 8_0)
@interface WKWebView : NSView
#endif

Looks like the NSURLSession treatment, modernizing a crusty old API. Hopefully it isn't relegated to private API for a year.

# ? Jun 2, 2014 17:42

Fate Accomplice: Nov 30, 2006

New dev tools?!

EDIT: Oh yeah, following the thread there, I just posted here cause holy poo poo that was unexpected.

Fate Accomplice fucked around with this message at 18:14 on Jun 2, 2014

# ? Jun 2, 2014 18:10

pokeyman: Nov 26, 2006; That elephant ate my entire platoon.

Malloreon posted:

New dev tools?!

There's a TVIV thread in SH/SC, though obviously dev tool chat is on point here too!

# ? Jun 2, 2014 18:13

rjmccall: Sep 7, 2007; no worries friend; Fun Shoe

I made a thread for talking about Swift, if you're interested.

# ? Jun 2, 2014 19:58

Simulated: Sep 28, 2001; Lowtax giveth, and Lowtax taketh away.; College Slice

rjmccall posted:

I made a thread for talking about Swift, if you're interested.

It's like someone decided to fulfill the John Siracusa wish list, then struck a new filesystem from it so they'd still have something to troll him with.

# ? Jun 2, 2014 20:12

Fate Accomplice: Nov 30, 2006

Ender.uNF posted:

It's like someone decided to fulfill the John Siracusa wish list, then struck a new filesystem from it so they'd still have something to troll him with.

Siracusa with nothing to complain about would wither and die.

Note: I love Siracusa and still mourn the end of Hypercritical. ATP is great but not the same.

# ? Jun 2, 2014 20:14

kitten smoothie: Dec 29, 2001

Open the new xcode release notes and search for radar #17022386.

# ? Jun 2, 2014 20:46

ultramiraculous: Nov 12, 2003; "No..."; Grimey Drawer

kitten smoothie posted:

Open the new xcode release notes and search for radar #17022386.

Oh poo poo!

Edit: Oh hmm, it looks like it's not even a secret. Look at your Simulator list. I suspect the Tools State of the Union is gonna be pretty drat interesting this year.

Edit2: Also the new XCode icon's hammer looks like it has a wasting disorder.

Edit3: I think the aforementioned thing is related to the share-card/activities stuff, at least in part.

ultramiraculous fucked around with this message at 20:58 on Jun 2, 2014

# ? Jun 2, 2014 20:48