Search Results

Search found 3457 results on 139 pages for 'cocoa'.

Page 77/139 | < Previous Page | 73 74 75 76 77 78 79 80 81 82 83 84  | Next Page >

  • How can I fix this clang warning: "Object with +0 retain counts returned to caller where +1 (owning)

    - by mipadi
    I have a piece of Objective-C code that looks like the following: - (NSString *)copyData:(NSData *)data { NSString *path = [[[self outputDirectory] stringByAppendingPathComponent:@"archive"] stringByAppendingPathExtension:@"zip"]; NSLog(@"Copying data to %@", path); [data writeToFile:path atomically:NO]; return path; } The code is called from an initializer that looks like this: - (id)initWithData:(NSData *)data { if ((self = [super init]) != nil) { NSString *path = [self copyData:data]; // Line 41 (referenced in warning, shown below) return [self initWithContentsOfFile:path]; } return self; } When running the clang static analyzer, I get the following warnings for the path variable: Potential leak of an object allocated on line 41 and stored into 'path' Object with +0 retain counts returned to caller where +1 (owning) retain count is expected I'm confused. My understanding is that stringByAppendingPathComponent should not return an autoreleased string, so it should have a net retain count of 0. (Obviously I don't want to retain it.) I've tried altering copyData: to return the following, but it didn't get rid of the warning: return [[path retain] autorelease]; So what's the deal with this warning?

    Read the article

  • Refreshing a UITableView

    - by MihaiD
    I have a UITableView subclass and a UITableViewCell sublass that I'm using for cells. I'm bulding all my cells in advance and store them in an array from where I use them in cellForRowAtIndexPath. Aside from this I have a thread that loads some images in each cell, in the background. The problem is that the cells don't get refreshed as fast as the images are loaded. For example, if I don't scroll my table view, the first cells only get refreshed when all cells have been modified and the thread has exited. Any ideas on how I can effectively refresh my tableview/cell?

    Read the article

  • Does different iVar name change retain count when used with property

    - by russell
    Here is 2 code snapshot- Class A:NSObject { NSMutableArray *a; } @property (retain) NSMutableArray *a; @implementation @synthesize a; -(id)init { if(self=[super init]) { a=[[NSMutableArray alloc] init]; } } @end Class A:NSObject { NSMutableArray *_a; } @property (retain) NSMutableArray *a; @implementation @synthesize a=_a; -(id)init { if(self=[super init]) { _a=[[NSMutableArray alloc] init]; } } @end Now what i need to know, is in both code instance variable assigned value directly rather than using accessor and retain count is 1? Or there is difference between them. Thanks. And one more things, apple recommended not to use accessor in init/dealloc, but at the same time ask not to directly set iVar. So what is the best way to assign value of ivar in init()??

    Read the article

  • How to display a person record just after saving his data to iPhone Address Book?

    - by camelCase
    this is my code and it works flawless, where my_value is a string with separator ','. everythign works fin but i'd like to display the person record from the address book after i saved it, so in the function if(isSaved) { // **** code here *** } here the complete function - (void) addToAgenda: (NSString*) my_value{ //NSArray *strings = [my_value componentsSeparatedByString: @","]; NSArray *dati=[[NSArray alloc] initWithArray:[my_value componentsSeparatedByString:@","]]; NSString *userwebsite = [dati objectAtIndex:0]; NSString *fname = [dati objectAtIndex:1]; NSString *lname = [dati objectAtIndex:2]; NSString *useremail = [dati objectAtIndex:3];; NSString *usermobile = [dati objectAtIndex:4]; NSString *usercompany = @"xxx"; ABRecordRef aRecord = ABPersonCreate(); CFErrorRef anError = NULL; // fisrst name ABRecordSetValue(aRecord, kABPersonFirstNameProperty, fname, &anError); // last name ABRecordSetValue(aRecord, kABPersonLastNameProperty, lname, &anError); // Phone Number. ABMutableMultiValueRef multi = ABMultiValueCreateMutable(kABMultiStringPropertyType); ABMultiValueAddValueAndLabel(multi, (CFStringRef)usermobile, kABWorkLabel, NULL); ABRecordSetValue(aRecord, kABPersonPhoneProperty, multi, &anError); CFRelease(multi); // Company ABRecordSetValue(aRecord, kABPersonDepartmentProperty, usercompany, &anError); // email NSLog(@"%@", useremail); ABMutableMultiValueRef multiemail = ABMultiValueCreateMutable(kABMultiStringPropertyType); ABMultiValueAddValueAndLabel(multiemail, (CFStringRef)useremail, kABWorkLabel, NULL); ABRecordSetValue(aRecord, kABPersonEmailProperty, multiemail, &anError); CFRelease(multiemail); // website NSLog(@"%@", userwebsite); ABMutableMultiValueRef multiweb = ABMultiValueCreateMutable(kABMultiStringPropertyType); ABMultiValueAddValueAndLabel(multiweb, (CFStringRef)userwebsite, kABWorkLabel, NULL); ABRecordSetValue(aRecord, kABPersonURLProperty, multiweb, &anError); CFRelease(multiemail); if (anError != NULL) NSLog(@"error while creating.."); CFStringRef personname, personlname, personcompind, personemail, personwebsite, personcontact; personname = ABRecordCopyValue(aRecord, kABPersonFirstNameProperty); personlname = ABRecordCopyValue(aRecord, kABPersonLastNameProperty); personcompind = ABRecordCopyValue(aRecord, kABPersonDepartmentProperty); personemail = ABRecordCopyValue(aRecord, kABPersonEmailProperty); personwebsite = ABRecordCopyValue(aRecord, kABPersonURLProperty); personcontact = ABRecordCopyValue(aRecord, kABPersonPhoneProperty); ABAddressBookRef addressBook; CFErrorRef error = NULL; addressBook = ABAddressBookCreate(); BOOL isAdded = ABAddressBookAddRecord (addressBook, aRecord, &error); if(isAdded){ NSLog(@"added.."); } if (error != NULL) { NSLog(@"ABAddressBookAddRecord %@", error); } error = NULL; BOOL isSaved = ABAddressBookSave (addressBook, &error); if(isSaved) { // **** code here *** } if (error != NULL) { NSLog(@"ABAddressBookSave %@", error); UIAlertView *alertOnChoose = [[UIAlertView alloc] initWithTitle:@"Unable to save this time" message:nil delegate:self cancelButtonTitle:nil otherButtonTitles:@"Ok", nil]; [alertOnChoose show]; [alertOnChoose release]; } CFRelease(aRecord); CFRelease(personname); CFRelease(personlname); CFRelease(personcompind); CFRelease(personcontact); CFRelease(personemail); CFRelease(personwebsite); CFRelease(addressBook); }

    Read the article

  • How do I make an NSView move to the front of all NSViews

    - by Dhanaraj
    Hi, I have a super view, which has 2 subviews. These subviews are overlapped. Whenever i choose a view from a menu, corresponding view should become the front view. i.e., it should be the font most subview. acceptsFirswtResponder, resigns all work fine. But the mouse down events are sent to the topmost sub view which was set. Regards, Dhana

    Read the article

  • Free iPhone weather API for the UK?

    - by user157733
    I am wanting to create a very simple weather app which only gives the current weather but in the UK. I have done a bit of searching but have yet to find a free API that I can use which works specifically for the UK. Does anyone have any experience of this or any suggestions?

    Read the article

  • NSTextField and hidden property

    - by jasonbogd
    Hi, I have an NSTextField that I hide when the user presses a button. I hide the text field using [textField setHidden:YES]; The problem is that is the user is typing in the text field (i.e. the text field is first responder) and the user presses the return key (which is the key equivalent for the button that hides the text field) the user can keep typing in the text field even though its not visible. How do I correctly remove a text field without actually deallocating it? Thanks.

    Read the article

  • UITableView via NSFetchedResultsControllerDelegate, select first record by default?

    - by deafgreatdane
    I have a UITableView that gets populated from CoreData via a controller that implements NSFetchedResultsControllerDelegate. How can I have it automatically select the first row (and fire the tableView:didSelectRowAtIndexPath message)? The tableview is used for a variety of predicate queries, so I'm suspicious of solutions that work on the UIViewController lifecycle (viewDidLoad, etc), but I'm new to the platform, so I'm open. I've tried a variety of things, but I'm not sure where in the call stack to put it. I've tried calling cell.selected = true inside tableView:cellForRowAtIndex: method, but that just ends up turning the cell black (and doesn't fire the selected callback method) A tagent question, with all the delegating and core data protocols, does it imply asynchronous data fetch (multiple threads)? Or is the NSFetchedResultsController calling all its related methods in the same thread? Maybe I'm just scared that if it is async, there would be race conditions that would be tough to troubleshoot later.

    Read the article

  • App dies on startup but not crash report

    - by brettr
    I've given an ad hoc version of my app to some users. Two of them have the app die on start up while one user has no issues. I can also install the ad hoc without issue...but that is always the case for me. One user sent the info below from the Xcode Organizer Console. They didn't find any crash logs. I don't know what to make of the info below. The one thing that stands out is "Permission denied". I place the provisioning and myapp.app files in a dropbox folder. The user then retrieves the files from the same location. I've run codesign against the .app file in the dropbox and get valid output: codesign -vvvv myapp.app myapp.app: valid on disk myapp.app: satisfies its Designated Requirement Any one have some ideas how I can figure out why the app doesn't work for this user? Here is the Console output from one user. They couldn't find any associated crash logs: Stats totalMLSITDBPostProcessing=5.31s commands=0.01 misc=0.45s icuSort=4.41s (MLS_icu_data=0.23s, MLS_icu_sec_data=0.13, dropIdx=0.04, normalize=0.13, update_orders=1.31, tStatsICUOther1=0.02, createIndex=2.50) Sun Dec 13 12:35:04 unknown com.apple.launchd[1] <Error>: (UIKitApplication:com.cygen.myapp[0x8cb6]) posix_spawn("/var/mobile/Applications/4B036396-3294-4E0A-BBCC-4118E72846D4/myapp.app/myapp", ...): Permission denied Sun Dec 13 12:35:04 unknown com.apple.launchd[1] <Warning>: (UIKitApplication:com.cygen.myapp[0x8cb6]) Exited with exit code: 1 Sun Dec 13 12:35:04 unknown SpringBoard[24] <Warning>: Failed to spawn myapp. Unable to obtain a task name port right for pid 179: (os/kern) failure Sun Dec 13 12:35:04 unknown com.apple.launchd[1] <Warning>: (UIKitApplication:com.cygen.myapp[0x8cb6]) Throttling respawn: Will start in 2147483647 seconds Sun Dec 13 12:35:04 unknown SpringBoard[24] <Warning>: Application 'myapp' exited abnormally with exit status 1 Sun Dec 13 12:35:10 unknown springboardservicesrelay[155] <Warning>: Unable to parse property list data of length: 0 Sun Dec 13 12:35:13 unknown com.apple.launchd[1] <Error>: (UIKitApplication:com.cygen.myapp[0x3ce5]) posix_spawn("/var/mobile/Applications/4B036396-3294-4E0A-BBCC-4118E72846D4/myapp.app/myapp", ...): Permission denied Sun Dec 13 12:35:13 unknown com.apple.launchd[1] <Warning>: (UIKitApplication:com.cygen.myapp[0x3ce5]) Exited with exit code: 1 Sun Dec 13 12:35:13 unknown SpringBoard[24] <Warning>: Failed to spawn myapp. Unable to obtain a task name port right for pid 182: (os/kern) failure Sun Dec 13 12:35:13 unknown com.apple.launchd[1] <Warning>: (UIKitApplication:com.cygen.myapp[0x3ce5]) Throttling respawn: Will start in 2147483647 seconds Sun Dec 13 12:35:13 unknown SpringBoard[24] <Warning>: Application 'myapp' exited abnormally with exit status 1

    Read the article

  • Do I need to release a copied NSObjects - Objective-c

    - by ncohen
    Hi everyone, I was wondering if I need to release a copied NSObject? For example, I create only one dictionary that I copy into an array: Code: for (int num = 0; num < [object count]; num++) { [dictionary setObject:[object objectAtIndex:num] forKey:@"x"]; [array addObject:[dictionary copy]]; } Do I have to release the dictionary? If yes, when? Thanks

    Read the article

  • iPhone/iPad : Check for invalid characters in a textbox made for Integers only

    - by JustinXXVII
    I noticed that the iPhone OS is pretty good about picking out Integer values when asked to. Specifically, if you use NSString *stringName = @"6("; int number = [stringName intValue]; the iPhone OS will pick out the 6 and turn the variable number into 6. However, in more complex mistypes, this also makes the int variable 6: NSString *stringName = @"6(5"; int number = [stringName intValue]; The iPhone OS misses the other digit, when what could have possibly been the user trying to enter the number 65, the OS only gets the number 6 out of it. I need a solution to check a string for invalid characters and return NO if there is anything other than an unsigned integer in a textbox. This is for iPad, and currently there is no numeric keyboard like the iPhone has, and I'm instead limited to the standard 123 keyboard. I was thinking that I need to use NSRange and somehow loop through the entire string in the textbox, and checking to see if the current character in the iteration is a number. I'm lost as far as that goes. I can think of testing it against zero, but zero is a valid integer. Can anyone help?

    Read the article

  • Where'd my sounds go?

    - by Dane Man
    In my Row class I have the initWithCoder method and everything restored in that method works fine, but only within the method. After the method is called I loose an array of sounds that is in my Row class. The sounds class also has the initWithCoder method, and the sound plays fine but only in the Row class initWithCoder method. After decoding the Row object, the sound array disappears completely and is unable to be called. Here's my source for the initWithCoder: - (id) initWithCoder:(NSCoder *)coder { ... soundArray = [coder decodeObjectForKey:@"soundArray"]; NSLog(@"%d",[soundArray count]); return self; } the log shows the count as 8 like it should (this is while unarchiving). Then the row object I create gets assigned. And the resulting row object no longer has a soundArray. [NSKeyedArchiver archiveRootObject:row toFile:@"DefaultRow"]; ... row = [NSKeyedUnarchiver unarchiveObjectWithFile:@"DefaultRow"]; So now whenever I call the soundArray it crashes. //ERROR IS HERE NSLog(@"%d",[[row soundArray] count]); Help please (soundArray is an NSMutableArray).

    Read the article

  • Override System Preference Pane?

    - by DisappointedIdealist
    Is there a way to override / disable a system preference pane? I'm wanting to put an application together that would disable or override the Energy Saver preference pane, and would put it's own rules in place for putting a machine into standby, turning off the monitor, or other various energy saving activities.

    Read the article

  • Loading from archive?

    - by fuzzygoat
    Can anyone point me in the right direction, I have two sets of load/save methods below that I am playing with to save an array of objects out to disk and then load them back in. I am getting a little confused after calling "saveMoons" how I should go about loading that data back in ... any pointers would be great. -(void)saveMoons:(NSString *)savePath { NSMutableData *data = [[NSMutableData alloc] init]; NSKeyedArchiver *archiver = [[NSKeyedArchiver alloc] initForWritingWithMutableData:data]; [moons encodeWithCoder:archiver]; [archiver finishEncoding]; [data writeToFile:savePath atomically:YES]; [data release]; [archiver release]; } -(void)loadMoons:(NSString *)loadPath { NSMutableData *data = [[NSMutableData alloc] initWithContentsOfFile:loadPath]; NSKeyedUnarchiver *unarchiver = [[NSKeyedUnarchiver alloc] initForReadingWithData:data]; // [self setMoons:[unarchiver ??????]]; } . // ------------------------------------------------------------------- ** // SIMPLER // ------------------------------------------------------------------- ** -(void)saveMoons_SIMPLE:(NSString *)savePath { NSData *data = [NSKeyedArchiver archivedDataWithRootObject:moons]; [data writeToFile:savePath atomically:YES]; } -(void)loadMoons_SIMPLE:(NSString *)loadPath { [self setMoons:[NSKeyedUnarchiver unarchiveObjectWithFile:loadPath]]; } // ------------------------------------------------------------------- ** // // ------------------------------------------------------------------- ** gary

    Read the article

  • How to debug 'no entities specified' when working with ZSync and CoreData Syncing

    - by monotreme
    I'm trying to get ZSync to work between a desktop and iPhone app. I've got my schemas set up and all info matches between my MOM and my schema so I should be good to go. When I initiate my sync, however, I get this error. |Miscellaneous|Error| SyncServices precondition failure in [ISyncSession _validateClient:entityNames:beforeDate:clientHasTruthForEntityNames:target:selector:]: no entities specified Anyone know what this means, and how to debug it? I'm a novice with this SyncServices stuff. Cheers!

    Read the article

  • Debugging unexpected error message - possible memory management problem?

    - by Ben Packard
    I am trying to debug an application that is throwing up strange (to my untutored eyed) errors. When I try to simply log the count of an array... NSLog(@"Array has %i items", [[self startingPlayers] count]); ...I sometimes get an error: -[NSCFString count]: unrecognized selector sent to instance 0x1002af600 or other times -[NSConcreteNotification count]: unrecognized selector sent to instance 0x1002af600 I am not sending 'count' to any NSString or NSNotification, and this line of code works fine normally. A Theory... Although the error varies, the crash happens at predictable times, immediately after I have run through some other code where I'm thinking I might have a memory management issue. Is it possible that the object reference is still pointing to something that is meant to be destroyed? Sorry if my terms are off, but perhaps it's expecting the array at the address it calls 'count' on, but finds another previous object that shouldn't still be there (eg an NSString)? Would this cause the problem? If so, what is the most efficient way to debug and find out what is that address? Most of my debugging up until now involves inserting NSLogs, so this would be a good opportunity to learn how to use the debugger.

    Read the article

  • NSArrayController not working with NSMutableDictionary for NSTableView

    - by Miraaj
    Hi all, I am trying to display content in NSTableView using NSMutableArrayController of NSMutableDictionary records. I followed steps written below: In application delegate class, I created an NSMutableArray object with name 'geniuses' and stored some NSMutableDictionary objects with keys: 'geniusName' and 'domain'. I took an NSArrayController object in IB, binded its controller content property to application delegate class, and set its model key path to 'geniuses'. In attribute inspector pane set mode as class and class name as NSMutableDictionary. Added keys: 'geniusName' and 'domain' to it. In IB I took a table view object. Binded its content property to array controller, controller key path set as arranged objects. Binded value property of its first column to array controller, controller key path set as arranged objects, model key path set as 'geniusName'. Binded value property of its second column to array controller, controller key path set as arranged objects, model key path set as 'geniusName'. After following these steps when I tried to build and run the project I found un-populated table view. You can find my code here. Can anyone suggest me where I may be wrong? Thanks, Miraaj

    Read the article

  • How can I break from a method prematurely that's being called by NSTimer

    - by jammur
    Basically I'm writing a metronome app, but I'm using a sound file that, depending on the BPM, might not be finished playing when the "play" method is called again. For example, if the sound file is 0.5 seconds long, but the BPM is 200, the "play" method needs to be called every 0.3 seconds. I'm not overly familiar with NSTimer, but it appears that if it is supposed to fire before the previous invocation has completed, it doesn't, and just waits for the next time around. I could be completely wrong about that though. What I need to do is have the previous invocation end prematurely, and have the "play" method called again when the time is supposed to fire. Any help would be appreciated!

    Read the article

  • Can AppleScript Do This?

    - by Garry
    I need to be able to send text from the clipboard to an application I'm writing (in Objective-C) via AppleScript. Obviously I need to make my application scriptable (I'm currently reading the Apple Docs about this) but is this possible/easy-to-implement?

    Read the article

  • Preload *.wav with SystemSoundID?

    - by fuzzygoat
    I am playing a wav file to give a little audio feedback when a button in my UI is pressed. My question is when you first press the button there is a delay (about 1.5secs) whilst the sound file "sound.wav" is loaded and cached. Is there a way to pre-cache this file (maybe in my viewDidLoad)? I guess I could do it by just playing it a viewDidLoad, but would really need to disable the audio so it does not "beeb" each time the app starts. many thanks for and help. gary EDIT: Looks like my question is a duplicate of this post unless anyone has any new info? Maybe a way to turn the play volume down temporarily, unless the audio is cleared each time through the run loop.

    Read the article

  • Using a UITableViewController with a small-sized table?

    - by rpj
    When using a UITableViewController, the initWithStyle: method automatically creates the underlying UITableView with - according to the documentation - "the correct dimensions". My problem is that these "correct dimensions" seem 320x460 (the iPhone's screen size), but I'm pushing this TableView/Controller pair into a UINavigationController which is itself contained in a UIView, which itself is about half the height of the screen. No frame or bounds wrangling I can come up with seems to correctly reset the table's size, and as such it's "too long", meaning there are a collection of rows that are pushed off the bottom of the screen and are not visible nor reachable by scrolling. So my question comes down to: what is the proper way to tell a UITableViewController to resize its component UITableView to a specified rectangle? Thanks! Update I've tried all the techniques suggested here to no avail, but I did find one interesting thing: if I eschew the UINavigationController altogether (which I'm not yet willing to do for production, but as an experiment), and add the table view as a direct subview of the enclosing view I mentioned, the frame size given is respected. The very moment I re-introduce the UINavigationController into the mix, no matter if it is added as a subview before or after the table view, and no matter if alloc/init it before or after the table view is added as a subview, the result is the same as it was before. I'm beginning to suspect UINavigationController isn't much of a team player... Update 2 The suggestion to check frame size after the table view on screen was a good one: turns out that the navigation controller is in fact resizing it some time in between load and display. My solution, hacky at best, has been to cache the frame given on load and to reset it if changed at the beginning of tableView:cellForRowAtIndexPath:. Why there you ask? Because it's the one place I found that worked, that's why! I don't consider this a solution as it's obviously improper, but for the benefit of anyone else reading, it does seem to work.

    Read the article

  • [[NSURL alloc] initFileURLWithPath:(NSString)] returns null

    - by Ajay Pandey
    NSString *soundFilePath = [[NSBundle mainBundle] pathForResource:@"Opening" ofType:@"wav"]; NSURL *fileURL = [[NSURL alloc] initFileURLWithPath: soundFilePath]; NSLog(@"@ajay"); AVAudioPlayer *audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:fileURL error:nil]; [fileURL release]; [audioPlayer play]; i have inserted a wav file in my project.But NSURL *fileURL = [[NSURL alloc] initFileURLWithPath: soundFilePath]; returns NULL and console prints following: and application KILLS... Can someone help me?

    Read the article

  • Resizing a UIButton programmatically by maintaining a margin

    - by Oscar Del Ben
    Hello, I'm adding a UIButton to a tableView footer programmatically. This button has a left and right margin that is equal to the tableView margin: UIButton *deleteButton = [UIButton buttonWithType:UIButtonTypeRoundedRect]; deleteButton.frame = CGRectMake(10, 60, 300, 34); deleteButton.autoresizingMask = UIViewAutoresizingFlexibleWidth I'm adding autoresizingMask because I want to support rotation. However, it does not work as I want, as the button stretches all the way down to the right, as shown by the image below. Any idea how to fix it? If I remove the autosizing property then the margin is correct.

    Read the article

< Previous Page | 73 74 75 76 77 78 79 80 81 82 83 84  | Next Page >