Re: Static TableView Leaks...

> > leak: > Malloc 48 bytes per incident > libsystem_c.dylib > studup > I've seen this in our project continually, and we're not using ARC. I don't remember exactly where this arises at the moment, but strdup leaks seem to be widely seen but not all that serious (it didn't seem that much memory w

Re: Why so many public properties all up in my grizzle?

On Mon, Mar 19, 2012 at 1:35 PM, Sebastian Celis wrote: > 1) Embrace @properties...Exposing _ivars in header files is > gross. You never want people to access them directly, so don't make > those declarations public at all. > > 2) Technically, nothing is truly private in Objective-C, so let's st

Re: further confusion regarding the release of controls loaded from a nib

Well, my code doesn't show things being allocated and assigned to the IBOutlets, but it shows a bunch of releases of the associated members. As far as I can gather, the code is now correct. It is this asymmetry that strikes me as messy and error-prone.

Re: further confusion regarding the release of controls loaded from a nib

I'm doing an iPhone app. I'm not doing any Mac app. I should simply have said "the nib-loading behavior". ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderator

Re: further confusion regarding the release of controls loaded from a nib

I went through and removed all the IBOutlet notation from the members and reconnected everything to the properties in IB. Also added release calls for all the controls in dealloc. The app appears to be quite solid, with no leaks or analyzer issues detected. I'm calling it done! Needless to say,

Re: further confusion regarding the release of controls loaded from a nib

OK, I think I know why there weren't any leaks. Per (possibly old) examples, I have "IBOutlet" in both the member-variable declarations and the property declarations. Now I'm realizing that IB will show two outlets: one for the member variable itself, and one for the property when you have this:

Re: further confusion regarding the release of controls loaded from a nib

Thanks. I didn't know whether they meant weak as a keyword necessarily, or simply the concept of a weak reference. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the m

further confusion regarding the release of controls loaded from a nib

The Apple doc for iOS says: "From a practical perspective, in iOS and OS X outlets should be defined as declared properties. Outlets should generally be weak, except for those from File’s Owner to top-level objects in a nib file (or, in iOS, a storyboard scene) which should be strong. Outlets that

Re: How is this an "incorrect decrement of a reference count"?

OK, thanks for the info and reference material. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/U

Re: The use of UIActionSheet mysteriously disables our app with a white screen after memory warning.

> > My UIAlertView version has exactly the same problem. Are you sure it > worked for you? > Yep. For some reason my business partner's iPhone 4S gets hammered with an outrageous number of memory warnings, whereas my iPhone 4 rarely does. He doesn't seem to be running anything extra in the backg

Re: How is this an "incorrect decrement of a reference count"?

> > I think most of this is in the NIB loading guide and the template code for > UIViewController subclases (and the code auto-generated when you add > outlets in Xcode using the mouse) does this. > > Thanks. I'm not using ARC and won't be for this release of my app. The posted link was for the M

Re: How is this an "incorrect decrement of a reference count"?

> > Are you using NSViewController or NSWindowController? UIViewController and derivatives. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev

Re: How is this an "incorrect decrement of a reference count"?

Yep, thanks. Someone pointed that out. I went through my whole project and audited every file for memory management, reinstating properties for everything. After forgetting not to use properties in the init and dealloc methods and having to correct that, the app is running great and there's not

Re: How is this an "incorrect decrement of a reference count"?

On Mon, Mar 19, 2012 at 3:47 PM, Roland King wrote: > And do you now understand why you are releasing the wrong thing? > Well, I understand why my code just happens to be releasing the right thing, but easily couldn't. Obviously the getter might be coded to return anything, including a wholly d

Re: How is this an "incorrect decrement of a reference count"?

On Mon, Mar 19, 2012 at 6:18 AM, Roland King wrote: > No, the analyzer is right and your code is somewhat confused. I'm trying > to figure out how you ended up with code like that, did you find you had an > extra retain somewhere and need to get rid of it? Yes. The allocated object has a retai

Re: The use of UIActionSheet mysteriously disables our app with a white screen after memory warning.

On Mon, Mar 19, 2012 at 9:29 AM, Rhythmic Fistman wrote: > I have this problem too. I have a small non-storyboard project that > reproduces it & a TSI in progress. > > Woah, finally, someone else emerges! Please let us know what you discover! Does your scenario have anything in common with the o

How is this an "incorrect decrement of a reference count"?

I have this in my header file: * ** @property (nonatomic, retain) UIImagePickerController* imagePicker; ** * The analyzer is complaining about lines like this (but not always): * self.imagePicker = [[UIImagePickerController alloc] init]; [self.imagePicker release]; * I do this in many place

How often are you guys checking isViewLoaded?

With my recent battles against memory warnings and deleted views, I'm auditing my code to make sure that nothing tries to access controls while the view is unloaded. Is it typical to enclose a lot of screen-validation routines and control access in a if([self isViewLoaded])statement? _

Re: There's obviously something I don't understand about NSDate.

On Sat, Mar 17, 2012 at 5:19 PM, Eeyore wrote: > I believe you were also on the discussion of properties vs. direct ivar > access. This ties into that discussion. Yep. That's why I mentioned that I see new merit to properties. You would still need to release the object in dealloc > > [_first

Re: There's obviously something I don't understand about autorelease.

On Sat, Mar 17, 2012 at 4:55 PM, Roland King wrote: > Hmm - with respect - autorelease is an implementation detail. Nothing says > that objects created through the convenience constructors like [ NSDate > date ] have to be autoreleased, they just have to be valid for long enough > to be useful, t

Re: There's obviously something I don't understand about NSDate.

BTW, thanks for all the answers. I appreciate it! Gavin ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Uns

Re: There's obviously something I don't understand about NSDate.

I did read the memory-management docs a long time ago, and I've run my app through both Leaks and the analyzer. I avoid using properties because I carefully manage my allocations. I think the hole in my knowledge was limited to autorelease. I never use autorelease in my code, so my exposure to i

Re: There's obviously something I don't understand about NSDate.

> > I create another NSDate, on the stack, to hold "now" for use within that > function. Do I need to retain that too? > > > Yes. > > Hm, Apple's doc says: "Cocoa’s ownership policy specifies that received objects should typically remain valid throughout the scope of the calling method." This le

Re: There's obviously something I don't understand about NSDate.

> > If a Cocoa method name doesn't begin with “alloc”, “new”, “copy”, or > “mutableCopy”, then the returned object is autoreleased. > > Thanks, Dave. That's what I thought. But I don't understand why I need to retain it then; it's assigned to a member pointer. Why does it get released, and when?

There's obviously something I don't understand about NSDate.

I have a member variable to hold an NSDate: NSDate* _firstBadAccuracyTime; At some point, something happens and I set this value to "now": _firstBadAccuracyTime = [NSDate date]; On my next trip through this function, I calculate how long it has been since I set this date: NSDate* n

Re: Why so many public properties all up in my grizzle?

> > How do you think that (NS)|(UI)Nib — an unrelated class that shouldn’t > have access to your private ivars — sets the outlet variables to your nib > objects? It does it via runtime hackery. If you declare a property, on the > other hand, it just calls the setter. Much cleaner and more OO, if yo

Re: Why so many public properties all up in my grizzle?

> > This pattern is pretty questionable though in terms of OO — you have one > class (NSNib, UINib, etc.) directly setting instance variables in another > class (your view controller) and using runtime functions to hack around > things like @private. > How do you figure? I'm not doing any manipul

Re: The use of UIActionSheet mysteriously disables our app with a white screen after memory warning.

> > just use isViewLoaded, it's a property of the UIViewController, don't need > to track it yourself. BAH! I looked for this sort of thing under the properties of UIViewController, not methods. Thanks. ___ Cocoa-dev mailing list (Cocoa-dev@lists.app

Re: The use of UIActionSheet mysteriously disables our app with a white screen after memory warning.

On Fri, Mar 16, 2012 at 9:45 PM, Roland King wrote: > I think chances are you are still somehow calling a method on a view > controller or similar which has been evicted. > I took a hard look at the two underlying controllers to make sure that they are not referring to controls when the views ar

Re: The use of UIActionSheet mysteriously disables our app with a white screen after memory warning.

On Fri, Mar 16, 2012 at 7:53 PM, Roland King wrote: > You've sure had a lot of problems with this! > Yeah, this is ridiculous. Researching it, I found that Instagram had the same white-screen problem for a while. Unfortunately, I've found no way to contact them. There's clearly something wron

Re: Why so many public properties all up in my grizzle?

Thanks for asking this, Brian. I've wondered the same thing, and in fact I went through my code and removed almost all property declarations from my view controllers. Since most properties are declared as "retain", you're just increasing your bookkeeping to avoid leaks. Not to mention the sheer

The use of UIActionSheet mysteriously disables our app with a white screen after memory warning.

The situation is pretty simple: a view controller at the top of our navigation controller's stack presents a modal view controller. When the user's done with the modal view, he makes one of several choices that call the modal controller's delegate and cause the delegate to dismiss the modal view.

How do we know if iCloud actually contains a key/value pair?

When our iPhone app is launched for the first time, it checks the user's iCloud account to see if he has installed our app on another device. If so, he'll have a unique ID that we've stored in his iCloud account, which is a database key that we use to manage his online content. We grab it and sto

Re: How are views supposed to reload after being nillified by memory warnings?

Well, at any rate, I have no such subview property. I've also found that among my series of modal presentations, there's a view that's displayed modally, whose user interaction works just fine, but whose viewWillAppear and viewWillDisappear methods are never called. As far as I know, it could be

Re: How are views supposed to reload after being nillified by memory warnings?

> > No. But if you've presented a modal view controller, your entire view > hierarchy (self.view) has been ripped out of the window, and if a memory > warning arrives, then self.view will be set to nil. What happens next > depends on if you implemented -viewDidUnload properly or if your view > refe

Re: How are views supposed to reload after being nillified by memory warnings?

Thanks for the feedback, Roland. On Sun, Mar 4, 2012 at 6:07 PM, Roland King wrote: > I would suspect that and change it so that either > > 1 the new view controller is pushed by the viewDidDisappear of the > dismissed modal one or > This would require excessive knowledge of the delegate contro

Re: How are views supposed to reload after being nillified by memory warnings?

> > In the vast majority of cases where I've seen this behavior, it is because > in your delegate handler for the UIImagePickerController, you assign the > returned image directly to a UIImageView that you have in your view > hierarchy. If you've recently gotten a memory warning, then this image vi

Re: How are views supposed to reload after being nillified by memory warnings?

> > How do you know the white view is screen-sized and has no superview? > Actually a UIView which you can see and yet has no superview is probably > just the UIWindow itself. > I write info about it to a log, in viewDidLoad. How about the view which has just been loaded? Does it have a superview

Re: How are views supposed to reload after being nillified by memory warnings?

OK, after our controller's view gets blown away on the memory warning, it does appear to be reloaded from the nib when it's time for redisplay. At least the IBOutlet members are non-nil in viewDidLoad (I nilled them on viewDidUnload). So it appears that the controller's view is reloaded from the

Re: How are views supposed to reload after being nillified by memory warnings?

Well, I've verified that the view controller has the correct name of the nib when it tries to reload the view after a memory warning. So this seems like a pretty big Cocoa bug, which unfortunately only one (remote) person on our team can reproduce reliably. I know Instagram encountered this same

Re: How are views supposed to reload after being nillified by memory warnings?

Thanks guys. The problem happens with no override of loadView. I only overrode it to verify that it was being called after the memory warning, and to verify that nibName was set. In viewDidLoad, I just instantiate a data collection and progress indicator. _

Re: How are views supposed to reload after being nillified by memory warnings?

The Apple doc says, "If the view controller has an associated nib file, this method loads the view from the nib file. A view controller has an associated nib file if the nibName

How are views supposed to reload after being nillified by memory warnings?

Hi all. View controllers that are buried in the navigation stack (or otherwise have their views obscured) set their views to nil when they receive a memory warning. This makes sense temporarily, because the views aren't visible. But when the overlapping views are dismissed, how is the nillified

Instruments won't symbolicate the call tree. What now?

Hi all. I'm looking for leaks in my iPhone app and apparently finding some. Unfortunately, Instruments will not show my app's symbols, making it pretty worthless. I've tried "Re-Symbolicate Document", but this does nothing. When I navigate to the location of the app and dSYM files (which do exi

Re: Can I somehow encourage the deallocation of a dismissed view controller?

Made an interesting discovery. If I invoke a screen modally over the problematic one, simulate a low-memory warning, and then dismiss the modal screen... the control gets deallocated. After several attempts it will crash with a bad access (apparently at calling [super dealloc]). Anyway, this is

Re: Can I somehow encourage the deallocation of a dismissed view controller?

I have a breakpoint in the problematic object's dealloc method, and it is never called when I'm testing it, even when I know that the parent has been deallocated. Conveniently, the deallocation of the control only occurs when the phone is running untethered (not under the debugger). It's possible

Re: Can I somehow encourage the deallocation of a dismissed view controller?

Thanks again, Conrad. > Are there *any* connections to your control (other than the > superview/subview relationship)? I see a _NSSetObjectValueForKeyInIvar > in your retain trace, which just be doing something internal, but it > makes me wonder. > There is an IBOutlet for it, but that's it. I

Re: Can I somehow encourage the deallocation of a dismissed view controller?

> > AH. > > There you go. You gotta realize that if you release an object more than > once, that WILL end up crashing, though not necessarily when you expect. > Hm. I didn't say this (because I thought it was obvious) , but I released it three times in succession *as an experiment to force t

Re: Can I somehow encourage the deallocation of a dismissed view controller?

On Wed, Feb 8, 2012 at 6:41 PM, Alex Zavatone wrote: > I'd check to see if it's already been deallocated. > > Thanks Alex. I don't know which item you mean (the control or its parent view), but I have breakpoints set in both of their dealloc methods and those breakpoints do work. So I know the

Can I somehow encourage the deallocation of a dismissed view controller?

> > > It's just a crash in the control's dealloc method: > > 0x0019f56e -[ThumbStripView dealloc] > > But what is the crash? EXC_BAD_ACCESS? > Don't know. The above is all that appears in the crash log, and it's so hard to reproduce that I've never seen it while running under the debugger. If s

Re: Can I somehow encourage the deallocation of a dismissed view controller?

Thanks for the response. > Even *if* deallocation occurs later, that shouldn't cause a crash. > I'm not suggesting that this is what's causing the crash. It's simply preventing me from debugging the problem, because I can't reproduce it on demand. It's just a crash in the control's dealloc met

Can I somehow encourage the deallocation of a dismissed view controller?

Hi all. Our app is crashing on the deallocation of a custom control, which resides on a view that's pushed onto the navigation controller's stack. The problem is that this view is almost never deallocated, even long after the user dismisses it with the Back button. It's not a leak, so I guess th

Re: How do you run an app on the device with Instruments?

Thanks guys, but you can't attach to a process with Leaks. This turned out to be a bug in Xcode 4.2, apparently. The app simply never ran. Someone mentioned that Xcode 4.2.1 existed (I must've missed the notification somehow), so I downloaded it and installed it. Instruments and Leaks now work,

Re: How do you run an app on the device with Instruments?

So... no one knows how to launch an app on the device with Instruments? Thanks anyway. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admin

How do you run an app on the device with Instruments?

Hi all. After finding an alleged answer on the Web (since the Apple documentation refers to the nonexistent Run > Start with Performance Tool menu in Xcode), I still can't get my app running in Instruments. Choosing Profile from the Product menu does cause Instruments to prompt for a template, but

Anybody know what com.apple.locationd.registration.xpcq is?

Our app has suddenly started exhibiting a strange delay when resuming from the background; it gradually takes longer and longer to reactivate the UI. Eventually, the app takes several seconds to resume, and crashes for failure to resume in time. I looked at the crash log, and found four threads w

Re: While running our iPhone app, the screen sometimes goes white and locks up. Any idea why?

Did the crash-log-generation procedure and got this after our screen went totally white: Unknown thread crashed with unknown flavor: 5, state_count: 1 Then we have these, which apparently result from force-quitting the app during the white screen: Exception Type: 0020 Exception Codes: 0xdea

Re: While running our iPhone app, the screen sometimes goes white and locks up. Any idea why?

Good info. Thanks, guys! ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription

While running our iPhone app, the screen sometimes goes white and locks up. Any idea why?

This just started happening recently, but then again I've made lots of changes to our app. It's not very frequent, and so far there's no discernible pattern. But every once in a while, the entire phone screen will turn white and there's no way to get rid of it in the app. There's no status bar,

Re: Adding an observer to an NSOperation crashes my app. RESOLVED

Thanks to all who answered. It was a simple boneheaded maneuver: Failing to call [super init] in the initialization method of my derived class. DUH. Works fine now! ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requ

Re: Adding an observer to an NSOperation crashes my app.

Thanks, Mike. There's nothing in the console.  The whole call stack at the time of the crash is this (when I create the operation on the main thread): #0 0x00396336 in -[NSOperation observationInfo] () #1 0x0036823a in _NSKeyValueRetainedObservationInfoForObject () #2 0x00379c98 in -[NSObject(NSK

Adding an observer to an NSOperation crashes my app.

Hi all. Working on an iPhone app and encountered a stumper. I have various kinds of operations (derived from NSOperation) to do async queries over the Internet. As is the norm, I determine when they're finished by observing their isFinished property, and getting the results in observeValueForKeyP

Our app can't store a simple key/value pair in iCloud. Any idea why?

Hi all. I've configured our app for iCloud usage and push notifications with the appropriate entitlements, under a provisioning profile that is set up for these, and a developer profile that's associated with this provisioning profile. The application identifier matches what's specified in the pr

Re: Why does my app suddenly return nil for the version string?

Turns out there's an Xcode bug behind this. Hard to imagine, I know. We don't use build numbers; just version numbers. I noticed that the target summary's Version field was blank, but the Build field wasn't. Swapping those states led Xcode to inexplicably remove the version from the plist entire

Why does my app suddenly return nil for the version string?

Hi all. My app just started crashing on launch, and I traced it to this call returning nil: NSString* versionString = [[NSBundle mainBundle] objectForInfoDictionaryKey:(NSString*)kCFBundleVersionKey]; Anyone know why this would suddenly start happening? Looking in the app's plist, there

Re: Is MKMapView just kinda messy?

> "Examples of weak references in Cocoa include, but are not restricted to, > table data sources, outline view items, notification observers, and > miscellaneous targets and delegates.  [. . .] Likewise, when a delegate > object is deallocated, you need to remove the delegate link by sending a

Re: Is MKMapView just kinda messy?

A list member was kind enough to point this out: "Before releasing an MKMapView object for which you have set a delegate, remember to set that object’s delegate property to nil. One place you can do this is in the dealloc method where you dispose of the map view." Unfortunately that's not in the

Is MKMapView just kinda messy?

Hi all. I've been wrestling with a crash in our app for a while now. It occurs when an MKMapView calls its delegate to get an annotation view. The problem is, there shouldn't be any MKMapView in existence. The view containing it has long since been popped. The MapView was part of a view loaded f

Re: How do we get rid of "application downloaded from the internet" warnings?

All of the items were PNGs. I viewed them all in Adobe Bridge after Preview wouldn't open them. And changing that attribute in fact did NOT work; I'm still getting the warning. On PNGs. Ridiculous. Thanks for the insight though, guys. ___ Cocoa-dev

Re: How do we get rid of "application downloaded from the internet" warnings?

> xattr -d com.apple.quarantine file... At least that one still works! Thanks, Ron. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(

How do we get rid of "application downloaded from the internet" warnings?

Hi all. Posting this here because I don't know where else to ask, and it's vaguely development-related because I was simply trying to browse icon files for my app. I downloaded a set of icons. If I select all the PNGs in Finder, right-click, and say Open, I get this asinine warning and then two

Re: How do you enable a view controller to be instantiated programmatically or from a XIB?

I should add that I've subclassed the grid controller to handle the additional controls I'm adding to the view. The controller will not be stored in the XIB. I had to change the parent grid controller class to handle initialization from a XIB, which included getting rid of loadView. Now it can't

Re: How do you enable a view controller to be instantiated programmatically or from a XIB?

I'm using an open-source controller that presents a grid of thumbnails. It is designed to be full-screen, so there was no XIB involved. Now I want to make it partial-screen and add some other controls with IB. ___ Cocoa-dev mailing list (Cocoa-dev@list

How do you enable a view controller to be instantiated programmatically or from a XIB?

As a follow-up to my question about objects not being loaded from a XIB: The view controller class I was using was not designed to be stored in a XIB; it had no initWithNibName method and did have a loadView method. The Apple doc makes it clear that these can't coexist in the same class. So is i

Re: What is the likely reason why objects aren't being loaded from a XIB?

Thanks for the responses. The problem turned out to be that my view controller's parent class had defined loadView, which didn't call the base (UIViewController) loadView (and indeed, the documentation says that a loadView method should NOT call the base). Thus the XIB-loading mechanism was never

What is the likely reason why objects aren't being loaded from a XIB?

Hi all. I have a pretty simple iPhone XIB with of course the main view, then a toolbar, a UITableView, and a custom grid view. The controller (owner of this file) handles an initWithNibName and calls up through one superclass to UIViewController's initWithNibName. I've verified that this is bein

Re: Does an iOS app's UI freeze when going into background?

> UIKit takes a snapshot of the view hierarchy as it was when your application > goes into the background and uses that when it comes back to the foreground. > It remains until your UI has had a chance to redraw itself. Thanks, David. I suspected as much. Looks like there's nothing to be done

Is anyone else noticing more duplicate keypresses (bad debounce) in Lion?

Hi all. I'm seeing lots of duplicated keypresses on Lion. On my laptop, they're often (but not always) coincident with a little blip of disk activity; it's as if the system queues the keypress while it's momentarily busy, and then issues it twice when the disk blip is over. If I press a key duri

Re: Why won't iOS app using MKMapView compile?

Good grief. Anyway, thanks for all the help and time it took. I really appreciate it! For now, my workaround was to paste #define isinf(x)\ (sizeof (x) == sizeof(float )?__inline_isinff((float)(x))\ :sizeof (x) == sizeof(double)?__inline_isinfd((double)(x))\

Re: Why won't iOS app using MKMapView compile?

> If you preprocess your source file, the output will show every include and > where it came from. Not easy to interpret, but it's all there. How do you do that? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests

Re: Why won't iOS app using MKMapView compile?

> You should file a bug report anyway, because MapKit's headers should be > compatible with Objective-C++. I will. The problem is that they're just going to bounce it back to me with "please provide a project that demonstrates this", and since I don't know where cmath is coming in, I don't know

Re: Why won't iOS app using MKMapView compile?

Thanks very much for that analysis, Kyle. This blows. All of our business logic is written in C++, which I'd think is a common scenario (the paucity of "business" logic in the app store notwithstanding). This problem is occurring in a UI controller that needs to show information from a C++ object.

Re: Why won't iOS app using MKMapView compile?

> Are you compiling this file as Objective-C++? Yes, the implementation is an mm file. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admin

Re: Why won't iOS app using MKMapView compile?

A search reveals that there are 29 math.h files on my system. Of those, these don't clearly include isinf: /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.3.sdk/usr/include/c++/4.2.1/tr1 /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator4.0.sdk/usr/includ

Re: Why won't iOS app using MKMapView compile?

First of all, thanks a lot for the responses. I have compiled a couple of examples, and they do build. That makes this all the more perplexing. The MapCallouts tutorial is one that I tried. In their file that uses MKMapView, these are the import statements: #import #import Now the import state

Re: Why won't iOS app using MKMapView compile?

This is ridiculous. The whole project is at a standstill because of this nonsense. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at

Re: Why won't iOS app using MKMapView compile?

> The man page for "isinf" says you will need to #include and link > with -lm. Thanks, but this is in Apple's code (MKGeometry.h). If I right-click on isinf in the flagged line and jump to the definition, it finds it in math.h. ___ Cocoa-dev mailing

Why won't iOS app using MKMapView compile?

Hi all. I put an MKMapView in my UI and tried to declare an IBOutlet for it, but compilation fails with this error, in MKGeometry.h: "'isinf' was not declared in this scope" The line it's griping about is UIKIT_STATIC_INLINE BOOL MKMapRectIsNull(MKMapRect rect) { return isinf(rect.origin.x)

So... we can't use UIWebView (with a delegate) on a page that's pushed onto a UINavigationController stack?

My app is crashing after the user presses the Back button in the navbar to dismiss a page that has a UIWebView on it, before the Web view has finished loading. The Web view subsequently tries call its delegate to say that the content has finished loading. In the Apple docs I see this: "Important

Why is my app generating warnings about "Deregistering for sleep notifications"?

Hi all. Looking over some logs from my phone, I'm seeing lots of : [Warning] Deregistering for sleep notifications when we have not registered and also Warning>: [Warning] IORegisterForSystemPower failed I'm also getting "deny iokit-open RootDomainUserClient." It's pretty much the combo that

Re: What is the point of a host-reachability test that doesn't test the reachability of the host?

Thanks for the response, Greg. > There are circumstances where a subset of the Internet's hosts may be > reachable. For example, you may be able to reach link-local names without a > broader Internet connection. Or you may be able to reach a host behind a VPN > only when the VPN is active. (I d

What is the point of a host-reachability test that doesn't test the reachability of the host?

Hi all. I'm trying to implement some robust network-failure handling in my iPhone app. The test of whether my host is reachable returns YES even when connected to a router that has no Internet connection. Apple's docs say, "A remote host is considered reachable when a data packet, sent by an app

Re: Why do things wind up under the nav bar after rotation?

>> Kinda seems like the framework would call that, but I guess not. > > It should and this shouldn't be necessary. A bug report would be good here. Yes, I'm going to file one. While this workaround straightens the layout after rotation, it's a little janky because things snap into place after the

Re: Why do things wind up under the nav bar after rotation?

Resolved. Turns out that doing this after rotation will re-align everything: [self.navigationController.view layoutSubviews]; Kinda seems like the framework would call that, but I guess not. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com

Why do things wind up under the nav bar after rotation?

Hi all. I'm having a layout problem on all my screens after they're rotated. It seems as though the view loses all knowledge of the navigation bar at the top after a rotation, so subviews are shoved up under it. Check it out: http://i.stack.imgur.com/mFALa.png It's not just this view. It also

Re: What state does an iOS app retain after being quit that causes it to crash on relaunch?

Ah, that sounds vagely familiar now. Thanks for the pointer, Conrad. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.c

What state does an iOS app retain after being quit that causes it to crash on relaunch?

We have a network-dependent app that will suffer from lengthy delays if connectivity is poor. We've found that if the user quits the app during a long network activity, the app will often crash upon its next launch. Why? It shouldn't be retaining any state between launches. Thanks for any insig

Still have to use a lock to protect the data backing a UITableView?

Hi all. I have a tableview that displays data from a collection of C++ objects. In the background, I download an updated collection occasionally, then reconcile it with the one being shown by the tableview. I coded it so the list reconciliation occurs on the main thread, but is that enough to pr

Re: Not sure about autorelease pools in NSOperations

Thanks for that thorough explanation, Wim. In most of my operations I'm just calling C++ objects, so I doubted that I need the pool. So far I'm pleased with operations and queues. Pretty cool and not hard to use. Not too portable though, I guess... Gavin ___

Not sure about autorelease pools in NSOperations

Hi all. I haven't really managed autorelease pools explicitly before, but the NSOperation doc says to use one in your NSOperation derivatives. My question is where to put it. The example shows the pool being created and released in the main() function, but I don't really allocate anything there.

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