On Apr 29, 2012, at 9:22 AM, Koen van der Drift koenvanderdr...@gmail.com
wrote:
So for future reference, my data model is an NSMutableArray. Instead of
adding objects by calling addObject, I need to call it as follows:
- (void)addMyObject:(MyObject *)obj
{
NSMutableArray *temp =
On Dec 17, 2010, at 1:24 pm, Flavio Donadio wrote:
Lesson learnt, but I took that code directly from Apple. Check Movie 11 on
this page:
http://developer.apple.com/cocoa/coredatatutorial/index.html
That's an overview tutorial from several years ago, prior to the introduction
of
On Dec 16, 2010, at 3:45 pm, Flavio Donadio wrote:
[self setValue:[NSDate date] forKey:@datePurchased];
Don't use KVC to set managed object properties unless you have a good reason
(dynamic code). Core Data generates accessor methods for you that are much more
efficient to use:
On Oct 30, 2010, at 4:46 pm, Paul Johnson wrote:
I have 2 tableviews (A and B) in a window. Both use Core Data. A 3rd
tableview (in a drawer) has a complete list of items that I can selectively
Drag and Drop to tableview B. I have almost implemented the Drag and Drop,
but one step is
On Oct 30, 2010, at 12:12 pm, Dave Carrigan wrote:
All initialized objects have at some point called super; they aren't fully
initialized otherwise. In the implementation, the non-designated initializers
typically chain to the designated initializer, which in turn chains to
super's
On Oct 27, 2010, at 8:38 pm, Paul Johnson wrote:
I took your suggestion to archive the array to a NSData object. I needed to
implement encodeWithCoder for the object that defines the data for a row
(containing 3 columns with an NSString in each column). I used the Data
Modeler to define the
On Oct 28, 2010, at 2:20 pm, Paul Johnson wrote:
The model for the data in the destination tableview is essentially the same
as for the source tableview. The only difference is that the data model for
the destination tableview has an additional entity and a relationship.
Then it's not the
the
dictionary.
Per previous reply:
On Oct 28, 2010, at 9:25 am, mmalc Crawford wrote:
What you do to support drag and drop depends on the functionality you want.
If you want to copy the objects, then you need to create representations that
are not managed objects -- for example a dictionary
On Sep 21, 2010, at 2:49 pm, Steve Wetzel wrote:
Then [self.view addSubView:viewController2.view]; brings up the subview.
You should [almost certainly] not be doing this.
If you want to display another view controller's view, you should use an
appropriate technique to present the view
On Aug 30, 2010, at 6:37 PM, Dave Geering wrote:
// 1)
self.serialIDs = [[IRMSerialDetailsDO alloc] init];
The alloc method allocates an instance with a retain count of 1, and
assigning it to the serialIDs property bumps it up to 2. In your
dealloc method, you will [hopefully] send it a
On Jul 22, 2010, at 2:05 am, Amy Gibbs wrote:
Some things I want to do though need to be actually coded, but how do I
reference the Arrays/Array controllers in the code? Do I need to declare
them? They aren't at the moment that I can see, but somehow it's using them.
All the tutorials I
On Jul 19, 2010, at 12:19 am, Andrea Mattiuz wrote:
I can't manage the change of a navigation controller on the right side of a
split view application (iPad) after a tap on the left side.
The behavior of this app would be similar to the 'settings' app in the iPad
simulator.
any
On Jul 18, 2010, at 1:20 pm, Gordon Apple wrote:
I have a series of questions about using CoreData (iPad). Although CoreData
is supposedly easy to use, I have found it anything but.
Per Keary's reply, the documentation makes it abundantly clear that it's not a
beginner's tool. It comes
On Jul 10, 2010, at 7:31 am, Matt James wrote:
That's absolutely right, though I'm glad Joanna chimed in since I didn't
know that was the common way to generate those classes to begin with (as I
said, I'm completely new to the workings of Core Data).
This technique is described in the
On May 19, 2010, at 4:38 am, Sherm Pendley wrote:
If you set the ivars directly, as above, the synthesized setters will
NOT be called. For that to happen, you need to use dot-syntax, like
this:
- (void) dealloc {
self.beginButton = nil;
self.endButton = nil;
// etc...
On May 19, 2010, at 1:48 am, Sai wrote:
1. Look at the awakeFromNib method of Controller, my output of the retain
count to the console are
myModel retain count: 5
controller retain count: 17
both number are very surprised me, why is that? I suppose they should be 2
or 1?
Can anyone
On May 20, 2010, at 7:40 am, Thomas Davie wrote:
However, you should typically not invoke accessor methods in init or dealloc
methods.
Can I ask why you shouldn't use them in init? It makes a lot of sense to not
use them in alloc/dealloc, but I'm not using them in init... after all,
On Mar 28, 2010, at 10:27 am, Michael Davey wrote:
That would be gut for the fact that my fields are released and set to nil
whenever a new SELECT query is executed - however, I think I can do this by
emptying the array when a new query is done and just counting the size of the
array in
On Mar 28, 2010, at 11:03 am, Philip Mobley wrote:
When calling setFields, you are then responsible for releasing the
newFields NSMutableArray you created in your sample code, because
[newFields mutableCopy] increments the ref counter.
This is not correct.
[newFields mutableCopy] returns
On Mar 15, 2010, at 5:33 pm, Damien Cooke wrote:
[self.myTableView deleteRowsAtIndexPaths:[NSArray
arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
Why are you doing this rather than (in addition to? which if so would probably
be the cause of the problem)
On Mar 14, 2010, at 7:21 pm, Dave Fernandes wrote:
So my question is - how do you detect this before loading the file? I'm aware
of the sqlite3 PRAGMA integrity_check, but there does not seem to be a C API
for this. Any pointers?
On Feb 24, 2010, at 12:04 pm, Rick Mann wrote:
I'd like to take an NSDate and get a relative day-of-week name. For example,
if today is 2/24, and the NSDate is some time on 2/23, it would be
Yesterday. If the NSDate were 2/22, it would be Monday.
Is there an existing format specifier for
On Feb 22, 2010, at 2:59 pm, Ken Tabb wrote:
Distilling my problem down into the Department Employees example, both are
custom NSManagedObject subclasses, each with an inverse to-many / to-one
relationship as you'd expect. My problem is that Department's custom
-awakeFromInsert gets
On Feb 11, 2010, at 12:08 pm, Gordon Apple wrote:
My point was that if you could count on init being called internally and
all you needed was to initialize some ivars, you could override init and
not have to override the (sometimes more involved) designated initializer
and possibly other
On Feb 10, 2010, at 7:07 pm, Jerry Krinock wrote:
Yes, basically. There is only going to be one in-memory object at a time
that represents the same managed object.
It certainly seems to be sensible, but I just wish someone could find such
documentation. I can't.
Uniquing:
On Jan 28, 2010, at 9:17 pm, Jonathan Chacón wrote:
Could you tell me any example project where I examine the source code?
If you want to do iPhone development, I suspect the most useful for you will be
UICatalog:
On Jan 29, 2010, at 10:32 am, B.J. Buchalter wrote:
On Jan 29, 2010, at 1:05 PM, mmalc Crawford wrote:
If you want to do iPhone development, I suspect the most useful for you will
be UICatalog:
http://developer.apple.com/iphone/library/samplecode/UICatalog/index.html
[...]
I
On Jan 28, 2010, at 9:42 am, vincent habchi wrote:
Check the continuous checkbox in IB (or set the object property of the
same name) and your target will get called while the user drags, as soon as
the position changes.
Do not forget there are some pitfalls. For example, I bound a slider
On Jan 24, 2010, at 10:27 am, Chunk 1978 wrote:
refactoring code so one method for the same button can handle a small
if/else statement could easily be considered more ideal than having
two separate methods.
No, it couldn't. If you have different actions that should happen in response
to
On Jan 19, 2010, at 5:50 pm, Jeff Laing wrote:
Yes, and it autoreleases it too. :-o That means it'll conveniently be
released later on, which is exactly what you're running into. If you
want to keep a reference to the dictionary, you should call alloc and
init yourself.
No, you should
On Jan 19, 2010, at 8:47 pm, Jeff Laing wrote:
I wrote:
No, you should just *retain* the result of dictionaryWithCapacity.
mmalc wrote:
No, you shouldn't.
With all due respect, why not?
Because it's difficult to imagine a common situation in which your advice will
be valid, for
On Jan 16, 2010, at 12:17 am, Roland King wrote:
Cast to the actual type before calling the method.
Instead of [ managedObject method1 ]
do
[ (Employee*)managedObject method1 ]
No; the OP stated, I don't use custom classes, so this won't work.
Follow the pattern described in the
On Jan 15, 2010, at 8:52 pm, Jenny M wrote:
but I don't know about the code...
Modifying to-many relationships is described here:
http://developer.apple.com/mac/library/documentation/Cocoa/Conceptual/CoreData/Articles/cdUsingMOs.html#//apple_ref/doc/uid/TP40001803
What did you try
On Jan 15, 2010, at 10:00 pm, Jenny M wrote:
I guess my question is also, was there any easier way to do it?? Is that how
it's normally done?
It's not clear exactly what you're referring to.
Do you mean, is the typical pattern that which you described earlier, namely:
I've been setting it
On Jan 15, 2010, at 10:57 pm, Jenny M wrote:
The objects do load, I ran the program regardless of warnings and it
did set the categories and references. So, how would I get it to build
without those warnings?
All of this is covered in the documentation:
On Jan 14, 2010, at 3:11 pm, Carter R. Harrison wrote:
In the addValueToSet: method I have the following code:
- (IBAction)addValueToSet:(id)sender
See
On Jan 11, 2010, at 9:01 am, Jerry Krinock wrote:
I wonder why bindings was not as an extension of KVO, instead of as a
separate sideshow. The effect is the same as KVO,
It's not at all. Bindings uses KVO to ensure that things are kept
synchronised; KVO is a general mechanism that allows
On Jan 10, 2010, at 4:57 am, Quincey Morris wrote:
I'm not sure where to go next with this ...
I would strongly recommend dispensing with bindings for the moment: it's not an
entry-level technology; it depends on an understanding of the fundamentals of
Cocoa development including object
On Jan 10, 2010, at 8:18 pm, Dave Fernandes wrote:
Look for Cocoa Bindings Guide in the docs. It would be nice if it were
cross-referenced in every class description. SelectedIndex should work for a
segmented control. Haven't tried it myself though.
No; the Cocoa Bindings Reference
On Jan 9, 2010, at 1:50 pm, Russell Gray wrote:
On 10/01/2010, at 8:18 AM, Quincey Morris wrote:
How about if you register your own KVO observer of the subscriptions
property? Does it get notified when the property changes? Did you check the
log for exception error messages?
So, I added an
On Jan 9, 2010, at 2:15 pm, Russell Gray wrote:
[subscriptionsArray addObject:output];
You haven't shown where you're modifying 'subscriptions' (apart from in the
init method).
Do you have two arrays that mirror each other, subscriptions and
subscriptionsArray?
Otherwise, if this is a
On Jan 9, 2010, at 6:34 pm, Graham Cox wrote:
'string' does not contain 'new', 'alloc' or 'copy' therefore you do not own
it.
That summary is just very subtly wrong(*), which is why people are generally
discouraged from paraphrasing the rules.
That said, there is indeed really very little
On Jan 8, 2010, at 1:10 pm, Russell Gray wrote:
I am having trouble trying to get a tableView to update its contents, when
bound to an NSArrayController - but only when new objects are added. removal,
and updating of current objects works fine.
On Jan 5, 2010, at 12:40 pm, Robert Claeson wrote:
(Greenwich, the G in GMT, is in North London)
Well, if we're being pedantic, South East of London, actually...
On Jan 5, 2010, at 1:35 pm, Kyle Sluder wrote:
On Tue, Jan 5, 2010 at 1:23 PM, mmalc Crawford mmalc_li...@me.com wrote:
An NSDate object represent a single point in time -- you can think of it
basically as a wrapper for an NSTimeInterval from the reference date. If
you want to create
On Dec 30, 2009, at 12:54 pm, Rick Mann wrote:
In my app I have a situation where I have two (Core Data) documents open, and
I need to merge all the changes made in one doc1 to the changes in doc2. I've
been reading the section on Change Management in the Core Data Programming
Guide, but
On Dec 30, 2009, at 1:58 pm, Rick Mann wrote:
Is that operation discussed in the docs somewhere?
Yes.
http://developer.apple.com/mac/library/documentation/Cocoa/Conceptual/CoreData/cdProgrammingGuide.html#//apple_ref/doc/uid/TP30001200
mmalc
___
On Dec 30, 2009, at 2:24 pm, Rick Mann wrote:
It's pretty much the same as any other operation on with a MOC. You cannot
copy or move a managed object from one MOC to another in a simple fashion.
Instead, you have got to create new, corresponding objects in the second
MOC, and then (if
On Dec 30, 2009, at 2:08 pm, Mike Abdullah wrote:
It's pretty much the same as any other operation on with a MOC. You cannot
copy or move a managed object from one MOC to another in a simple fashion.
Instead, you have got to create new, corresponding objects in the second MOC,
and then
On Dec 27, 2009, at 9:07 pm, Jim Correia wrote:
On Dec 27, 2009, at 11:52 PM, Brian Bruinewoud wrote:
If I've generated core data classes from my model, how do I use them to
create new values?
Currently I'm doing this:
CDClass *cdObject = (CDClass *)[ NSEntityDescription
On Dec 22, 2009, at 9:40 pm, Michael Craig wrote:
At the point where the tutorial discusses garbage collection (end of ch. 5),
I decided to implement the deallocation of the Converter objects created by
ConverterController's convert: method. I want the deallocation to happen
inside convert:.
On Dec 22, 2009, at 3:37 pm, Matt Neuburg wrote:
This sounds like a good time for the view to post an NSNotification. The
subview can then respond to it. m.
Sounds like overkill --- swatting mosquitoes with sledgehammers.
An NSNotification is not a sledgehammer. And letting interested
On Dec 22, 2009, at 5:09 pm, Eric E. Dolecki wrote:
I already stated (I believe) that I needed to redo the way this application
is being constructed. In this way I'll have more direct access to subviews. I
originally created another view controller with it's own nib and I was indeed
On Dec 20, 2009, at 11:40 pm, Chaitanya Pandit wrote:
One weird thing that is happening is that just after the
configurePersistentStoreCoordinatorForURL... call, the contents of my
document on the disk are changed, even if i didn't save the document
It's not clear in what sense this is
On Dec 11, 2009, at 1:06 pm, Alex Kac wrote:
if (timeSpanPicker)
{
//remove it
[timeSpanPicker removeFromSuperview];
[timeSpanPicker release];
//now add it again
[self
On Dec 9, 2009, at 5:47 am, Christian Ziegler wrote:
Sorry I got to correct myself, it's not Cocoa Bindings, but direct
target/action. So I connected the takeIntegerValue action of both views to
each other in contrast to connecting it to a controller.
Don't do that.
Both should invoke an
On Dec 7, 2009, at 7:08 pm, Chunk 1978 wrote:
is this suppose to work for multiple touches where one touch is
already present, then another touches the screen?
Yes, it does; tested in a working application.
it's not working for me. each time i touch the screen and add an object to
the
On Dec 8, 2009, at 12:38 am, mmalc Crawford wrote:
is this suppose to work for multiple touches where one touch is
already present, then another touches the screen?
Yes, it does; tested in a working application.
it's not working for me. each time i touch the screen and add an object
On Dec 8, 2009, at 3:49 am, Chunk 1978 wrote:
i meant that i find it complicated compared to basic single touches or
gestures.
It's not clear what's complicated.
You typically want to know when touches began, moved, and ended, and there are
methods to inform you when each of these things
On Dec 8, 2009, at 8:59 am, Chunk 1978 wrote:
this is what i have so far, but i have no idea how to write the
touchesEnded method so that the appropriate label will clear. so if 3
fingers are touching the screen and displaying their different
coordinates, if the 2nd finger that was pressed
On Dec 8, 2009, at 12:33 pm, mmalc Crawford wrote:
Get the logic right...
- (void)setUpTouchHandling {
touchToLabelMapping = CFDictionaryCreateMutable (kCFAllocatorDefault, 5,
kCFTypeDictionaryKeyCallBacks, kCFTypeDictionaryValueCallBacks);
availableLabels = [[NSMutableArray alloc
On Dec 8, 2009, at 2:17 am, Gerriet M. Denkmann wrote:
- (void)windowWillClose:(NSNotification *)notification
{
id f = [ ikView observationInfo ];
NSString *oi = [ f description ];
BOOL ok;
NSString *obs = @Observer:;
NSString *kpa = @Key path:;
On Dec 7, 2009, at 4:12 pm, Chunk 1978 wrote:
if ([[[event allTouches] anyObject] view] == self)
{
for (UITouch *touch in touches)
{
CGPoint touchPoint = [[touches anyObject]
locationInView:self];
On Nov 23, 2009, at 8:54 am, Jens Alfke wrote:
The Cocoa Pasteboard API has the annoying limitation that there is no
standard, public data type for multiple URLs.
This is no longer true with Mac OS X v10.6 and later -- you can write and read
multiple URLs to and from to the pasteboard.
On Nov 23, 2009, at 1:04 pm, Jens Alfke wrote:
[url pasteboardPropertyListForType:(NSString *)kUTTypeURL]
But that still only writes a single NSURL, right? How do you write multiple
using that API?
On Mac OS X v10.6 and later, you can write multiple items to a pasteboard, so
you
On Nov 4, 2009, at 5:20 pm, Rob Keniger wrote:
See mmalc’s Graphics Bindings sample:
http://homepage.mac.com/mmalc/CocoaExamples/controllers.html
Sometimes Cocoa can be overwhelming. This will help. Thank you so much. :)
You might also find this blog post very helpful:
On Oct 28, 2009, at 6:26 am, Martin Cote wrote:
That said, the situation in this sample project is quite different.
When they add an object, they actually add an empty object in an array
controller.
This is precisely what the example does not do.
On Oct 26, 2009, at 9:00 am, Fritz Anderson wrote:
I'm about to unleash a Core Data-based application, and I'm sure the schema
will change in later versions. The Core Data Model Versioning and Data
Migration Programming Guide seems to say that migrating a store from one
version to
On Oct 23, 2009, at 5:27 pm, Ken Thomases wrote:
Indeed, there are no dealloc methods in the entire sample, which makes it
buggy. There should be one for the MyDocument and Bookmark classes.
The bug is actually that, for some reason, the projects aren't marked as using
garbage collection.
On Oct 22, 2009, at 9:54 am, Jeff Johnson wrote:
Ignore bbum. We hereby promise never to break == for SEL. (But SEL is not
char*. We will break that.)
And now that it's on the mailing lists, it can be considered part of Apple's
official documentation. ;-)
It already is:
On Oct 22, 2009, at 4:09 am, Matthew Lindfield Seager wrote:
A reducing search is more commonly referred to as filtering. A
google search should help you very quickly as this is very easy with
core data bindings.
The question is related to iPhone and NSFetchedRestultsController, therefore
On Oct 15, 2009, at 10:41 pm, Nathan Vander Wilt wrote:
Ouch. So the following pattern is incorrect?
NSError* internalError = nil;
(void)[foo somethingReturningBool:bar error:internalError];
if (internalError) {
// ...
}
On Oct 14, 2009, at 5:21 PM, Rick Mann wrote:
NSMutableData* data = [NSMutableData data];
[data appendBytes: self length: sizeof (self)];
Try using an NSValue:
+ (NSValue *)valueWithPointer:(const void *)aPointer
archive
then
unarchive
- (void *)pointerValue
mmalc
On Oct 9, 2009, at 3:17 PM, A B wrote:
I have a situation in which I would like a column in a table that is bound to
an NSArrayController to display information that isn't actually in the
objects being represented, but is instead the result of an operation that
involves a bit of data in
On Sep 16, 2009, at 3:56 PM, Leon Starr wrote:
I have been creating my models programmatically and am wondering how
to treat the min/max length fields for string attributes. I can't
seem to find any corresponding programatic settings. (Also
wondering if there is any effect to these
On Sep 13, 2009, at 9:14 AM, Milen Dzhumerov wrote:
-(void)awakeFromFetch
{
for(id base in [self relationship])
Log(@%@, base);
...
}
awakeFromFetch
[...]
Important: Subclasses must invoke super’s implementation before
performing their own initialization.
On Sep 6, 2009, at 10:00 AM, Steven Degutis wrote:
For instance, if you have 2 genuine properties on your Person
entity called firstName and lastName then you can create a fullName
property
on your Person class, and when firstName or lastName change, call
-willChangeValueForKey: and
On Sep 3, 2009, at 7:56 AM, Scott Andrew wrote:
As Cocoa documentation states all items returned from a message are
autoreleased unless otherwise stated in the documentation for the
API call.
The documentation emphatically does not state that.
The basic rules are given here:
On Aug 6, 2009, at 10:37 AM, Matteo Manferdini wrote:
What I discovered is that in the first case the hashes are the same
for the model and the store, while in the second case the model has
lost a lot of metadata in the versioning process. Along with my
entities there are also other entities
On Aug 4, 2009, at 11:20 PM, Matteo Manferdini wrote:
I'm trying to run core data migration on the store of my app but it
seems to be unable to find the source object model no matter what.
What happens if you don't try to perform migration and instead simply
open the existing store with the
On Aug 1, 2009, at 5:11 AM, Squ Aire wrote:
1) In awakeFromNib, call either [[self managedObjectContext]
setUndoManager:nil]; or [[[self managedObjectContext]
undoManager] disableUndoRegistration]; This certainly works, but
the problem with this is that the
On Jul 22, 2009, at 7:22 AM, Squ Aire wrote:
How can I do some custom stuff before my NSManagedObjectContext saves?
Register for NSManagedObjectContextWillSaveNotification.
mmalc
___
Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
Please do
On Jul 22, 2009, at 8:05 AM, Squ Aire wrote:
On Jul 22, 2009, at 7:22 AM, Squ Aire wrote:
How can I do some custom stuff before my NSManagedObjectContext
saves?
Register for NSManagedObjectContextWillSaveNotification.
I see no such thing in my docs. Only DidSave. Not WillSave.
Sorry, I've
On Jul 19, 2009, at 3:15 PM, Jerry Krinock wrote:
The case in point here is that -[NSManagedObjectContext
executeFetchRequest:error:] returns an NSError if something goes
wrong.
This is misleading.
The fundamental behaviour is that method returns NO if something goes
wrong. In
On Jul 19, 2009, at 1:59 PM, Squ Aire wrote:
* Finally an unrelated and basic Core Data question: Where do you
paste the code you copy using the Copy Method Declarations/
Implementations feature in the data modeling tool? I really want to
use those things because it is, according to docs,
On Jul 19, 2009, at 5:05 PM, mmalc Crawford wrote:
The fundamental behaviour is that method returns NO if something
goes wrong.
As Jerry kindly pointed out off-list, this method of course returns
nil -- not NO -- if something goes wrong. The important issue (and
one which has given
On Jul 16, 2009, at 12:51 PM, tmow...@talktalk.net wrote:
I have removed it completely and just called the longer winded
[[NSApp delegate] managedObjectContext] when I need it. I suppose I
could have set the ivar in the awakeFromNib when all NIB objects are
guaranteed to have been
On Jul 6, 2009, at 11:38 AM, DKJ wrote:
I want to terminate my UIApplication under some specific error
conditions. I'm used to doing this kind of thing using:
[[NSApplication sharedApplication] terminate];
But docs don't show a terminate method for UIApplication. Apparently
it will
On Jul 6, 2009, at 8:20 PM, Bright wrote:
And I find there are several sample code about Core Data, such as
DepartmentAndEmployee and CoreRecipe
But I don't know how these code were implemented step by step.
Is there any document to show/explain the process
to implement them
On Jul 4, 2009, at 5:39 PM, Ian Havelock wrote:
For future reference, in many cases EXC_BAD_ACCESS can be indicative
of a memory management problem. Here, however, you are asking NSLog
to print int values as objects ('%@' is the format specifier for an
object):
NSLog(@Number of Sides:
On Jul 4, 2009, at 11:43 PM, Andrew Farmer wrote:
- (int)numberOfSides {
return numberOfSides;
}
- (void)setNumberOfSides:(int)value {
numberOfSides = value;
}
Let me guess: does your stack trace (type tb in the gdb console)
indicate infinite recursion? Either
On Jul 5, 2009, at 12:21 AM, Jacob Rhoden wrote:
I am probably overlooking something obvious (I hope) but what is the
proper way to convert. either the Date or Time part of an NSDate to
a localised string? I know I can do the following but its not
exactly localised :(
NSDate *now =
On Jul 5, 2009, at 8:23 AM, Michael Ash wrote:
It's the same benefit as anywhere else. You have two places,
viewDidUnload and dealloc, which perform the exact same action.
They do not perform the exact same action.
In dealloc, you obviously relinquish ownership of all objects you own
(and
On Jul 4, 2009, at 8:11 PM, WT wrote:
The following is ok, though, assuming that you have appropriately
declared myObject in your class (for example, as an instance
variable):
- (void)viewDidLoad
{
myObject = [[NSObject alloc] init];
}
In general, this is not recommended.
If you
On Jul 4, 2009, at 9:31 PM, DKJ wrote:
On 4-Jul-09, at 21:10 , mmalc Crawford wrote:
you should use accessor methods rather than direct variable
manipulation
Would declaring all the variables as properties, and then
synthesising them, take care of this?
Strictly, this is an orthogonal
On Jul 4, 2009, at 9:40 PM, WT wrote:
In general, this is not recommended.
If you manipulate an instance variable anywhere other than in an
initialiser or a dealloc method, you should use a suitable accessor
method.
- (void)viewDidLoad
{
id anObject = [[NSObject alloc] init];
[self
On Jul 3, 2009, at 11:54 AM, Brian Slick wrote:
So, if TaggedLocations was flying while mine was sucking, I'd
probably concede that what I was doing was wrong (and would probably
need more custom cells). But since neither one is performing very
well, and I can't find any significant
On Jul 3, 2009, at 2:45 PM, Brian Slick wrote:
So now I either need to figure out how to make my scenarios all work
with a single identifier, or I may just go ahead with the code-only
cell I just built in response to the performance issue. If would be
nice if there was some kind of
On Jul 3, 2009, at 2:15 PM, colo wrote:
I am seeking a bare bones beginner source or tutorial for building
painting apps on the iphone.
This one uses OpenGL:
http://developer.apple.com/iphone/library/samplecode/GLPaint/
index.html
You could use a similar technique to create CGPaths to
On Jun 30, 2009, at 3:29 PM, Trygve Inda wrote:
NSString* myDateFormat = @%a %b %e %H:%M:%S %Z %Y;
NSDate*myDate = nil;
// myDateString is Tue Jun 30 15:53:24 UTC 2009
myFormatter = [[NSDateFormatter alloc]
initWithDateFormat:imageDateFormat
allowNaturalLanguage:NO];
myDate =
1 - 100 of 342 matches
Mail list logo
