Search Results

Search found 12101 results on 485 pages for 'objective c runtime'.

Page 135/485 | < Previous Page | 131 132 133 134 135 136 137 138 139 140 141 142  | Next Page >

  • Is release without prior retain dangerous?

    - by BankStrong
    I have some code which I think has extra release statements. Is the code incorrect? What is the end result? I don't understand memory management well yet - even after reading lots of articles and stackoverflow answers. Thanks for straightening me out. NSMutableArray *points = [NSMutableArray new]; for (Segment *s in currentWorkout.segments) { [points addObjectsFromArray:[s.track locationPoints]]; } [routeMap update:points]; [points release];

    Read the article

  • Strange iPhone memory leak in xml parser

    - by Chris
    Update: I edited the code, but the problem persists... Hi everyone, this is my first post here - I found this place a great ressource for solving many of my questions. Normally I try my best to fix anything on my own but this time I really have no idea what goes wrong, so I hope someone can help me out. I am building an iPhone app that parses a couple of xml files using TouchXML. I have a class XMLParser, which takes care of downloading and parsing the results. I am getting memory leaks when I parse an xml file more than once with the same instance of XMLParser. Here is one of the parsing snippets (just the relevant part): for(int counter = 0; counter < [item childCount]; counter++) { CXMLNode *child = [item childAtIndex:counter]; if([[child name] isEqualToString:@"PRODUCT"]) { NSMutableDictionary *product = [[NSMutableDictionary alloc] init]; for(int j = 0; j < [child childCount]; j++) { CXMLNode *grandchild = [child childAtIndex:j]; if([[grandchild stringValue] length] > 1) { NSString *trimmedString = [[grandchild stringValue] stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]; [product setObject:trimmedString forKey:[grandchild name]]; } } // Add product to current category array switch (categoryId) { case 0: [self.mobil addObject: product]; break; case 1: [self.allgemein addObject: product]; break; case 2: [self.besitzeIch addObject: product]; break; case 3: [self.willIch addObject: product]; break; default: break; } [product release]; } } The first time, I parse the xml no leak shows up in instruments, the next time I do so, I got a lot of leaks (NSCFString / NSCFDictionary). Instruments points me to this part inside CXMLNode.m, when I dig into a leaked object: theStringValue = [NSString stringWithUTF8String:(const char *)theXMLString]; if ( _node->type != CXMLTextKind ) xmlFree(theXMLString); } return(theStringValue); I really spent a long time and tried multiple approaches to fix this, but to no avail so far, maybe I am missing something essential? Any help is highly appreciated, thank you!

    Read the article

  • adding options to IKSaveOptions?

    - by Brian Postow
    I have an ImageKit program that needs to be able to save images, so I'm using the IKSaveOptions accessory view, to allow the user to choose a file type, etc. However, I want to remove some of the options, and add a checkbox to the panel for TIFFs. Alternatively, I want to add a type of file. However I can't figure out how to do this. I assume I'm going to have to subclass off of IKSaveOptions and over-ride something, but I can't find any sample code or documentation that tells me how to do this. ETA: In particular, I need to be able to allow the user to distinguish between multi-page tiff, and a bunch of single-page tiffs with a page-number appended.

    Read the article

  • Foundation framework. No NSString.h file

    - by pawelini1
    Hello I'm getting a few errors just after I updated my working copy via SVN. /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator3.2.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSCharacterSet.h:8:0 /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator3.2.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSCharacterSet.h:8:32: error: Foundation/NSString.h: No such file or directory /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator3.2.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSCharacterSet.h:45:0 /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator3.2.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSCharacterSet.h:45: error: expected ')' before 'unichar' /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator3.2.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSPathUtilities.h:10:0 /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator3.2.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSPathUtilities.h:10: error: cannot find interface declaration for 'NSString' All that errors tell that compiler is unable to find NSString.h file in Foundation framework and I have opened the Foundation framework in Xcode/Frameworks/Foundation.framework/Headers and noticed that there is no NSString header file there. Could anyone tell me what happened? I tried to delete the framework and add it again but it failed to. Still I don't have NSString header file.

    Read the article

  • NSScrollView jumping to bottom on scroll

    - by Nick Locking
    I have an NSScrollView containing an NSImageView, which resizes based on various factors. When it resizes I have generally changed the image, so I scroll the NSScrollView to the top. This works fine. However, when I start to scroll the NSScrollView again, it moves a few pixels and then (most of the time) jumps to the bottom of the scroll. After it jumps once, it works as normal until I move the scroller to the top again. This is driving me insane. All I'm really doing is this: [_imageView setImage: anNSImage]; NSRect frame; NSSize imageSize = [anNSImage] size]; frame.size = imageSize; frame.origin = NSZeroPoint; [_imageView setFrame: frame]; [[_mainScrollview contentView] scrollToPoint: NSMakePoint(0, [_imageView frame].size.height - [_mainScrollview frame].size.height)];

    Read the article

  • Xcode acting strange

    - by Moshe
    I am typing code from Head First iPhone Development (O'reilly) and Xcode will build and run fine once and then, without any modification to the code, the second build will fail. Why?(I'm using command+R)

    Read the article

  • What is the difference between moveBackward: and moveLeft: when using NSResponder -interpretKeyEvent

    - by nciagra
    I'm implementing a custom text box using -interpretKeyEvents: and am trying to figure out what the difference is between moveBackward: vs moveLeft: and moveForward: vs moveRight:. moveLeft: is bound to the left arrow and moveBackward: is bound to Ctrl + B. The documentation describes them almost identically and they seem to behave identically in practice. I'm assuming this is just a holdover from Vim? Does anyone know what the real difference is? Should moveBackward: just call my moveLeft: implementation? Thanks a lot, Nick

    Read the article

  • Parent class issue - UITableViewController doesn't work

    - by Darko Hebrang
    When I access my Search View from my tab bar, the view gets loaded when SearchViewController interface is set like this: @interface SearchViewController : UIViewController but it crashes when I set it like this (although it doesn't crash when it is not accessed through the tab bar): @interface SearchViewController : UITableViewController Why? I need the UITableViewController as I have a table view that I access from the tab bar.

    Read the article

  • How to store javascript variables in iPhone application

    - by sugar
    <script type="text/javascript"> function getSelectionRange() { var sel; if (window.getSelection) { sel = window.getSelection(); if (sel.rangeCount) { return sel.getRangeAt(0); } } else if (document.selection) { return document.selection.createRange(); } return null; } var range; </script> whatShouldBeHere=[wvText stringByEvaluatingJavaScriptFromString:@"getSelectionRange();"]; Here, method getSelectionRange is returning JavaScript Object of Range type. How can I catch & store in plist file in iPhone application ? Thanks in advance for sharing your knowledge. Sagar

    Read the article

  • As-You-Type-Searching with Core Data / NSFetchedResultsController

    - by Snej
    I implemented an as-you-type-searching (text search on single attribute) by fetching with performFetch: after each given character by the user. The performFetch: is running in a background thread to avoid keyboard freezes. But while typing many useless fetches are started. A NSOperationQueue might be an option, but I wonder if there are other approaches for this quite usual search behavior. What's best practice to notice when fetching is done and the table view is updated with the previous fetch to start a new fetch?

    Read the article

  • How to convert an NSString to an unsigned int in Cocoa?

    - by Dave Gallagher
    My application gets handed an NSString containing an unsigned int. NSString doesn't have an [myString unsignedIntegerValue]; method. I'd like to be able to take the value out of the string without mangling it, and then place it inside an NSNumber. I'm trying to do it like so: NSString *myUnsignedIntString = [self someMethodReturningAString]; NSInteger myInteger = [myUnsignedIntString integerValue]; NSNumber *myNSNumber = [NSNumber numberWithInteger:myInteger]; // ...put |myNumber| in an NSDictionary, time passes, pull it out later on... unsigned int myUnsignedInt = [myNSNumber unsignedIntValue]; Will the above potentially "cut off" the end of a large unsigned int since I had to convert it to NSInteger first? Or does it look OK to use? If it'll cut off the end of it, how about the following (a bit of a kludge I think)? NSString *myUnsignedIntString = [self someMethodReturningAString]; long long myLongLong = [myUnsignedIntString longLongValue]; NSNumber *myNSNumber = [NSNumber numberWithLongLong:myLongLong]; // ...put |myNumber| in an NSDictionary, time passes, pull it out later on... unsigned int myUnsignedInt = [myNSNumber unsignedIntValue]; Thanks for any help you can offer! :)

    Read the article

  • Best way to figure out why didReceiveMemoryWarning is always getting called on a UIViewController

    - by wgpubs
    I have a UIViewController and I'm noticing that I've done something to where the didReceiveMemoryWarning method is getting called every time I run it on an actual device. I've run the project with Run Run With Performance Tool Object Allocations (and Leaks also). There are no leaks but I have no idea how to read or understand the "Object Allocations" data that is displayed. So ... How do I read this information and what is/are the best ways to figure out (and resolve) why this is happening? Thanks

    Read the article

  • Calculate NSString size to adjust UITextField frame

    - by Bernd Plontsch
    I have issues calculating the accurate size of a NSString displayed in a UITextField. My goal is to update the textfield frame size according to the string size programmatically (without using sizeToFit). I am using the sizeWithFont function. -(void)resizeTextFieldAccordingToText:(NSString*)textFieldString { CGPoint originalCenter = self.textField.center; UIFont* currentFont = [textField font]; CGSize newSize = [textFieldString sizeWithFont:currentFont]; //Same incorrect results with the extended version of sizeWithFont, e.g. //[textFieldString sizeWithFont:currentFont constrainedToSize:CGSizeMake(300.0, 100.0) lineBreakMode:NSLineBreakByClipping]; [self.textField setFrame:(CGRectMake(self.textField.frame.origin.x, self.textField.frame.origin.y, newSize.width, newSize.height))]; [self.textField setCenter:originalCenter]; } Problem: While this return correct size results at first its becomes more and more unprecise by adding characters therefore finally starts clipping the string (as seen in the right screenshot). How do I get the accurate size of the textField string for correctly adjusting its size?

    Read the article

  • Layering Cocoa WebView - Drawing on top?

    - by Josh
    http://stackoverflow.com/questions/1618498/webview-in-core-animation-layer The only other thread I can find is the above which doesn't necessarily fit my needs. Is there a reliable way to simply draw a view on top of a webview? I've tried to layer a regular NSView on top of WebView, and it draws right at first, but any movement in the webview (scrolling the page etc) appears to invalidate the view and produces visual artifacts. I've tried: [[[NSApp mainWindow] contentView] addSubview:view positioned:NSWindowAbove relativeTo:webView]; No luck there, same problems -- z-ordering doesn't seem to work unless I'm missing something. Is this just a limitation of webviews? I also tried implementing the view above as a window, which worked much better (just controlled the location of the window programmatically). However, the desired behavior is for the user to enter some text into this window, but for it not to steal "focus" -- ie the main window goes inactive (the x - + go gray) when the user clicks on the text field in the new window. Any way to avoid that? I've tried subclassing NSWindow and overriding canBecomeKey (return YES) and canBecomeMain (return NO) but the window still steals focus. Josh

    Read the article

  • Apple Push Notifications With Foreign Accent Characters Not Receiving

    - by confeng
    I'm sending push notifications and when the message contains foreign characters (Turkish in my case) like I, s, ç, g... The message does not arrive to devices. Here's my code: $message = 'THIS is push'; $passphrase = 'mypass'; $ctx = stream_context_create(); stream_context_set_option($ctx, 'ssl', 'local_cert', 'MyPemFile.pem'); stream_context_set_option($ctx, 'ssl', 'passphrase', $passphrase); // Open a connection to the APNS server $fp = stream_socket_client( 'ssl://gateway.push.apple.com:2195', $err, $errstr, 60, STREAM_CLIENT_CONNECT|STREAM_CLIENT_PERSISTENT, $ctx); if (!$fp) exit("Failed to connect: $err $errstr" . PHP_EOL); echo 'Connected to Apple service. ' . PHP_EOL; // Encode the payload as JSON $body['aps'] = array( 'alert' => $message, 'sound' => 'default' ); $payload = json_encode($body); $result = 'Start'.PHP_EOL; $tokenArray = array('mytoken'); foreach ($tokenArray as $item) { // Build the binary notification $msg = chr(0) . pack('n', 32) . pack('H*', $item) . pack('n', strlen($payload)) . $payload; // Send it to the server $result = fwrite($fp, $msg, strlen($msg)); if (!$result) echo 'Failed message'.PHP_EOL; else echo 'Successful message'.PHP_EOL; } // Close the connection to the server fclose($fp); I have tried encoding $message variable with utf8_encode() but the message received as "THÝS is push". And other ways like iconv() didn't work for me, some of them cropped Turkish characters, some didn't receive at all. I also have header('content-type: text/html; charset: utf-8'); and <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> in my page. I don't think the problem appears while I set the value but maybe with pack() function. Any ideas to solve this without replacing characters with English?

    Read the article

  • Crashing the OS X Pasteboard

    - by Ben Packard
    I have an application that reads in text by emulating CMD-C copy commands and reading the pasteboard - unfortunately this the only way to achieve what I need. Occasionally, something goes wrong in execution (not sure yet if it's related to the copy command or not) and the app crashes. Once in a while, this has a knock on effect on the system-wide pasteboard - any other application that is running will crash if I attempt a copy, cut, or paste. Is there a robust way to handle this - something I should be doing with the NSPasteboard before exiting? Any information on what might be happening is appreciated. For completeness, here are the only snippets of code that access the pasteboard: Reading from the pasteboard: NSString *pBoardText = [[NSPasteboard generalPasteboard]stringForType:NSStringPboardType]; Initially clearing the pasteboard (I run this only once, at launch): [[NSPasteboard generalPasteboard] declareTypes: [NSArray arrayWithObject:NSStringPboardType] owner: self]; [[NSPasteboard generalPasteboard] setString: @"" forType: NSStringPboardType];

    Read the article

  • iPhone SDK: How to generate a random time of day

    - by bigdave
    Hello all, I am having some problems trying to figure out the best way of generating a random time of day. For instance, if I want to choose a random time between the hours of 9am and 5pm, what would be the best way with the least amount of overhead on the device? I guess I need someone to point me in the right direction. Thanks!

    Read the article

  • Navigation Items in UITableViewController are not appearing?

    - by Sheehan Alam
    I am displaying a UITableViewController inside of a UITabBarController that is being presented modally: -(IBAction)arButtonClicked:(id)sender{ //this is a uitableviewcontroller ARViewController* arViewController = [[[ARViewController alloc] initWithNibName:@"ARViewController" bundle:nil]autorelease]; LeaderBoardTableViewController* lbViewController = [[[LeaderBoardTableViewController alloc] initWithNibName:@"LeaderBoardTableViewController" bundle:nil]autorelease]; lbViewController.title = @"Leaderboard"; arTabBarController = [[UITabBarController alloc] initWithNibName:nil bundle:nil]; arTabBarController.viewControllers = [NSArray arrayWithObjects:arViewController, lbViewController, nil]; arTabBarController.selectedViewController = arViewController; [self presentModalViewController:arTabBarController animated:YES]; } In my viewDidLoad for arViewController method I am setting the navigation items: - (void)viewDidLoad { [super viewDidLoad]; // Uncomment the following line to preserve selection between presentations. self.clearsSelectionOnViewWillAppear = NO; self.title = @"AR"; leaderBoardButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemOrganize target:self action:@selector(leaderBoardButtonClicked:)]; self.navigationItem.rightBarButtonItem = leaderBoardButton; } My navigation bar doesn't appear when it is inside of the UITabBarController, but when I push the view itself I am able to see it. What am I missing?

    Read the article

  • NavigationBar from UINavigationController not positioned correctly

    - by David Liu
    So, my iPad program has a pseudo-split view controller (one that I implemented, not base SDK one), and was working correctly a while ago. It has the basic layout (UINavController for master, content view controller for detail on right), but I have it so the master view doesn't disappear when rotated into portrait view. Recently, I added in a UITabBarController to contain the entire split view, which has made the navigation bar go wonky, while all the other views are positioned fine. In addition, the navigation bar only gets mispositioned when the program starts up while the iPad is in landscape, or upside-down portrait. If it starts out in portrait, everything is fine. Relevant Code: RootViewController.m: - (void)loadView { navController = [[NavigationBreadcrumbsController_Pad alloc] init]; ABTableViewController_Pad * tableViewController = [[ABTableViewController_Pad alloc] initWithNibName:@"ABTableView"]; master = [[UINavigationController_Pad alloc] initWithRootViewController:tableViewController]; [tableViewController release]; // Dummy blank UIViewcontroller detail = [[UIViewController alloc] init]; detail.view = [[[UIView alloc] init] autorelease]; [detail.view setBackgroundColor:[UIColor grayColor]]; self.view = [[[UIView alloc] init] autorelease]; self.view.backgroundColor = [UIColor blackColor]; [self positionViews]; [self.view addSubview:navToolbarController.view]; [self.view addSubview:master.view]; [self.view addSubview:detail.view]; } // Handles the respositioning of view into it's current orientation -(void)positionViews{ CGFloat tabBarOffset = 0; if(self.tabBarController){ tabBarOffset = self.tabBarController.tabBar.frame.size.height; } if(self.interfaceOrientation == UIInterfaceOrientationPortrait || self.interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown) { self.view.frame = CGRectMake(0, 0, 768, 1004); navController.view.frame = CGRectMake(0,0,768,44); //adjust master view [master.view setFrame:CGRectMake(0, 44, 320, 1024 - 44 - 20 - tabBarOffset)]; //adjust detail view [detail.view setFrame:CGRectMake(321,44, 448, 1024 - 44 - 20 - tabBarOffset)]; } // Landscape Layout else{ self.view.frame = CGRectMake(0, 0, 748, 1024); navToolbarController.view.frame = CGRectMake(0,0,1024,44); //adjust master view [master.view setFrame:CGRectMake(0, 44, 320, 768 - 44 - 20 - tabBarOffset)]; //adjust detail view [detail.view setFrame:CGRectMake(321,44, 1024 - 320, 768 - 44 - 20 - tabBarOffset)]; } }

    Read the article

  • NSMutableArray can't be added to

    - by Dan Ray
    I've had this sort of problem before, and it didn't get a satisfactory answer. I have a viewcontroller with a property called "counties" that is an NSMutableArray. I'm going to drill down a navigation screen to a view that is about selecting the counties for a geographical search. So the search page drills down to the "select counties" page. I pass NSMutableArray *counties to the second controller as I push the second one on the navigation stack. I actually set that second controller's "selectedCounties" property (also an NSMutableArray) with a pointer to my first controller's "counties", as you'll see below. When I go to addObject to that, though, I get this: *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: '*** -[NSCFArray insertObject:atIndex:]: mutating method sent to immutable object' Here's my code: in SearchViewController.h: @interface SearchViewController : UIViewController { .... NSMutableArray *counties; } .... @property (nonatomic, retain) NSMutableArray *counties; in SearchViewController.m: - (void)getLocationsView { [keywordField resignFirstResponder]; SearchLocationsViewController *locationsController = [[SearchLocationsViewController alloc] initWithNibName:@"SearchLocationsView" bundle:nil]; [self.navigationController pushViewController:locationsController animated:YES]; [locationsController setSelectedCounties:self.counties]; [locationsController release]; } in SearchLocationsViewController.h: @interface EventsSearchLocationsViewController : UIViewController <UITableViewDelegate, UITableViewDataSource> { ... NSMutableArray *selectedCounties; } ... @property (nonatomic, retain) NSMutableArray *selectedCounties; in SearchLocationsViewController.m (the point here is, we're toggling each element of a table being active or not in the list of selected counties): -(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath]; if ([self.selectedCounties containsObject:[self.counties objectAtIndex:indexPath.row]]) { //we're deselcting! [self.selectedCounties removeObject:[self.counties objectAtIndex:indexPath.row]]; cell.accessoryView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"red_check_inactive.png"]]; } else { [self.selectedCounties addObject:[self.counties objectAtIndex:indexPath.row]]; cell.accessoryView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"red_check_active.png"]]; } [tableView deselectRowAtIndexPath:indexPath animated:YES]; } We die at [self.selectedCounties addObject.... there. Now, when I NSLog myself [self.selectedCounties class], it tells me it's an NSCFArray. How does this happen? I understand about class bundles (or I THINK I do anyway), but this is explicitly a specific type, and it's losing it subclassing at some point in a way that kills the whole thing. I just completely don't understand why that would happen.

    Read the article

  • Elegant Algorithm for Parsing Data Stream Into Record

    - by Matt Long
    I am interfacing with a hardware device that streams data to my app over Wifi. The data is streaming in just fine. The data contains a character header (DATA:) that indicates a new record has begun. The issues is that the data I receive doesn't necessarily fall on the header boundary, so I have to capture the data until what I've captured contains the header. Then, everything that precedes the header goes into the previous record and everything that comes after it goes into a new record. I have this working, but wondered if anyone has done this before and has a good computer-sciencey way to solve the problem. Here's what I do: Convert the NSData of the current read to an NSString Append the NSString to a placeholder string Check placeholder string for the header (DATA:). If the header is not there, just wait for the next read. If the header exists, append whatever precedes it to a previous record placeholder and hand that placeholder off to an array as a complete record that I can further parse into fields. Take whatever shows up after the header and place it in the record placeholder so that it can be appended to in the next read. Repeat steps 3 - 5. Let me know if you see any flaws with this or have a suggestion for a better way. Seems there should be some design pattern for this, but I can't think of one. Thanks.

    Read the article

  • iPhone: UITableView not Displaying New Data After Call to reloadData

    - by donnib
    My problem is that the cell.textLabel does not display the new data following a reload. I can see the cellForRowAtIndexPath being called so I know the reloadData call goes thru. If I log the rowString I see the correct value so the string I set label text to is correct. What am I doing wrong? I have following code : - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { NSUInteger row = [indexPath row]; static NSString *RowListCellIdentifier = @"RowListCellIdentifier"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:RowListCellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:RowListCellIdentifier]autorelease]; } NSMutableString *rowString = [[NSMutableString alloc] init]; [rowString appendString:[[[rows objectAtIndex:row] firstNumber]stringValue]]; [rowString appendString:@" : "]; [rowString appendString:[[[rows objectAtIndex:row] secondNumber]stringValue]]; [rowString appendString:@" : "]; [[cell textLabel] setText:rowString]; [rowString release]; return cell; } - (void)viewWillAppear:(BOOL)animated { [self.tableView reloadData]; [super viewWillAppear:animated]; }

    Read the article

  • Alarm Clock settings proble,

    - by Viral
    Hello Friends, when i change 24/12 setting from my application at that time as soon as change iphone setting also change which i select from my application... Is it possible....? if yes than say me it's urgent...

    Read the article

< Previous Page | 131 132 133 134 135 136 137 138 139 140 141 142  | Next Page >