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  • EXC_BAD_ACCESS signal received

    - by Hector Ramos
    When deploying the application to the device, the program will quit after a few cycles with the following error: Program received signal: "EXC_BAD_ACCESS". The program runs without any issue on the iPhone simulator, it will also debug and run as long as I step through the instructions one at a time. As soon as I let it run again, I will hit the EXC_BAD_ACCESS signal. In this particular case, it happened to be an error in the accelerometer code. It would not execute within the simulator, which is why it did not throw any errors. However, it would execute once deployed to the device. Most of the answers to this question deal with the general EXC_BAD_ACCESS error, so I will leave this open as a catch-all for the dreaded Bad Access error. EXC_BAD_ACCESS is typically thrown as the result of an illegal memory access. You can find more information in the answers below. Have you encountered the EXC_BAD_ACCESS signal before, and how did you deal with it?

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  • Some problem with MPMoviePlayerController using in ipad application

    - by Miraaj
    Hi all I am using MPMoviePlayerController in Ipad application. Video is not showing but audio comes, same code working well for Iphone NSBundle *bundle = [NSBundle mainBundle]; NSString *moviePath = [bundle pathForResource:@"video" ofType:@"mp4"]; movieURL = [NSURL fileURLWithPath:moviePath]; MPMoviePlayerController *IntroMovie = [[MPMoviePlayerController alloc] initWithContentURL:movieURL]; [IntroMovie play]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(moviePlaybackDidFinish:) name:MPMoviePlayerPlaybackDidFinishNotification object:nil]; Please suggest me Thanks Miraaj

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  • All my UIButtons and UITableRowViews are now gray

    - by Greg Maletic
    Not sure how this happened, but all of the UITableRowViews and roundrect-style UIButtons in my app—spanning a dozen or so views—are now all gray instead of white. Unfortunately, I have no idea how this happened. (In fact, I had no idea it was possible to do this.) Explicitly setting the button's or tableRowView's background color to white gets it back to normal. But it'll be a lot of work to do that to every one of my views...and I'd rather not have to do it since there's obviously something simple that caused it in the first place. How did I break this? Thanks very much.

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  • disable javascript in a UIWebView

    - by adrien Coye
    Hi, Is there a way to disable the Javascript in a UIwebView ? I have memory consumption problem, and I'm looking for a trick here because it seems to not be be possible with the official stuff. Maybe a call with javascript can stop javascript itself, i don't know. Thanks in advance for any help, Adrian C

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  • How to clip the contents of a custom NSView?

    - by Paperflyer
    I have a custom NSView that displays a nice scale/ruler. I am drawing text labels that are partly outside the actual drawing area so they get clipped by the view (looks nice). Now, I want to introduce empty side margins into the view and need to clip its content manually. How can I set up a custom clipping rectangle?

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  • How to open a document using an application launched via NSTask?

    - by zneak
    Hello world, I've grown tired of the built-in open Mac OS X command, mostly because it runs programs with your actual user ID instead of the effective user ID; this results in the fact sudo open Foo opens Foo with its associated application with your account instead of the root account, and it annoys me. So I decided to make some kind of replacement. So far I've been successful: I can open any program under the open -a or open -b fashion, and support optionally waiting. I'm using NSTask for that purpose. However, I'd like to be able to open documents too. As far as I can see, you need to use NSWorkspace for that, but using NSWorkspace to launch programs results in them being launched with your account's credentials instead of your command line program's credentials. Which is precisely what the default open tool does, and precisely what I don't want. So, how can I have a program request that another program opens a document without using NSWorkspace? From the NSTask object, I can have the process ID, but that's about it.

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  • Getting Custom NSCell with NSButtonCell instance to handle mouse click/mouse events

    - by sidha
    OK I'm really stumped on this one. I want to make a checkbox with a NSTextFieldCell combined together. It's important that the checkbox goes ON if the mouse hits the box, NOT the text. I've accomplished this, more or less, but the issue is receiving the mouse event because I click one checkbox in a row, but ALL of them turn to NSOnState. I will show what I've done and my various failed attempts in order to get this to work. So this is how I've done it so far: header: @interface MyCheckboxCellToo : NSTextFieldCell { NSButtonCell *_checkboxCell; } implementation: - (NSUInteger)hitTestForEvent:(NSEvent *)event inRect:(NSRect)cellFrame ofView:(NSView *)controlView { NSPoint point = [controlView convertPoint:[event locationInWindow] fromView:nil]; NSLog(@"%@", NSStringFromPoint(point)); NSRect checkFrame; NSDivideRect(cellFrame, &checkFrame, &cellFrame, cellFrame.size.height/*3 + [[_checkboxCell image] size].width*/, NSMinXEdge); if (NSMouseInRect(point, checkFrame, [controlView isFlipped])) { // the checkbox, or the small region around it, was hit. so let's flip the state NSCellStateValue checkState = ([_checkboxCell state] == NSOnState) ? NSOffState:NSOnState; [self setState:checkState]; [_checkboxCell setState:checkState]; [controlView setNeedsDisplay:YES]; return NSCellHitTrackableArea; } return [super hitTestForEvent:event inRect:cellFrame ofView:controlView]; } I know I probably shouldn't be doing: [self setState:checkState]; [_checkboxCell setState:checkState]; [controlView setNeedsDisplay:YES]; in there... because the result is that EVERY checkbox in every goes to NSOnState. Is this because cells are re-used? How come the ImageAndTextCell can have different images in the same tableview? How do I handle the mouse event? I have tried: - (BOOL)trackMouse:(NSEvent *)theEvent inRect:(NSRect)cellFrame ofView:(NSView *)controlView untilMouseUp:(BOOL)untilMouseUp { NSLog(@"%s %@", _cmd, theEvent); return [_checkboxCell trackMouse:theEvent inRect:cellFrame ofView:controlView untilMouseUp:untilMouseUp]; // return YES; // return [super trackMouse:theEvent inRect:cellFrame ofView:controlView untilMouseUp:untilMouseUp]; } - (BOOL)startTrackingAt:(NSPoint)startPoint inView:(NSView *)controlView { NSLog(@"%s %@", _cmd, NSStringFromPoint(startPoint)); return [super startTrackingAt:startPoint inView:controlView]; } - (BOOL)continueTracking:(NSPoint)lastPoint at:(NSPoint)currentPoint inView:(NSView *)controlView { NSLog(@"%s %@", _cmd, NSStringFromPoint(currentPoint)); return [super continueTracking:lastPoint at:currentPoint inView:controlView]; } - (void)stopTracking:(NSPoint)lastPoint at:(NSPoint)stopPoint inView:(NSView *)controlView mouseIsUp:(BOOL)flag { NSLog(@"%s %d %@", _cmd, flag, NSStringFromPoint(stopPoint)); } trackMouse: ... DOES gets called but startTrackingAt:..., continueTracking:..., and stopTracking:.... DO NOT get called when I click on the checkbox "hit area" in trackMouse:... I have tried return [_checkboxCell trackMouse:theEvent inRect:cellFrame ofView:controlView untilMouseUp:untilMouseUp]; and return [super trackMouse:theEvent inRect:cellFrame ofView:controlView untilMouseUp:untilMouseUp]; and neither seems to result in the mouse event being handled by the checkbox. How do I get that single checkbox to go NSOnState? I know I'm pretty close but after a lot of doc reading and google searching I haven't been successful at solving this. suggestions and comments welcome.. OK here is a bit more to show creation and destruction of the object.. - (id)init { if ((self = [super init])) { _checkboxCell = [[NSButtonCell alloc] init]; [_checkboxCell setButtonType:NSSwitchButton]; [_checkboxCell setTitle:@""]; [_checkboxCell setTarget:self]; [_checkboxCell setImagePosition:NSImageLeft]; [_checkboxCell setControlSize:NSRegularControlSize]; } return self; } - copyWithZone:(NSZone *)zone { MyCheckboxCellToo *cell = (MyCheckboxCellToo *)[super copyWithZone:zone]; cell->_checkboxCell = [_checkboxCell copyWithZone:zone]; return cell; } - (void)dealloc { [_checkboxCell release]; [super dealloc]; }

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  • Declaring CustomViewController?

    - by fuzzygoat
    I have noticed in some of my older apps that in situations where I have added a custom View Controller I have not changed the View Controller class in the application delegate. For example, below I have created a CustomViewController class but have declared viewController as UIViewController. @interface ApplicationAppDelegate: NSObject <UIApplicationDelegate> { UIWindow *window; UIViewController *viewController; } My question is, both work, but for correctness should I be writing this as follows: @class CustomViewController; @interface ApplicationAppDelegate: NSObject <UIApplicationDelegate> { UIWindow *window; CustomViewController *viewController; } gary

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  • How can I test Xcode Project on iPhone ?

    - by Khawar
    I have developed a view based project in XCode. It is successfully running in iPhone Simulator. But I want to test this project on real iPhone device to check the behavior of application. Is there any way I can test my application on iPhone device without buying Apple Developer's License? Thanks in advance.

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  • Add new language to existing Xcode project localization

    - by leolobato
    Hey guys, I'm working on an existing Xcode 3.2.2 Universal iPhone OS project which is already localized for 4 languages (EN, IT, DE and FR). We are now adding a new language (JA) into this project. Each existing .lproj folder (en.lproj, it.lproj, de.lproj and fr.lproj) has almost 60 files - including PNGs, HTMLs and the Localizable.strings file. Each one of those files appear as localized groups inside Groups & Files in Xcode. They're spread all over the tree. If I right-click one of those groups (say, Localizable.strings) inside Xcode, Get Info, click on "Add Localization" and type "ja" - as the Xcode docs suggest, nothing happens. From what I read in this newgroup, it's possibly because of the way those folders are named. If they were named like English.lproj and Italian.lproj, this was supposed to work. So, for me to actually import a new language localized file into the existing group, I have to: Right-click the localized group file. Choose "Add Existing File". Select the corresponding file inside the ja.lproj folder. I'm about to get a new ja.lproj folder with those 60 localized files and would love to import them in the project in a way that doesn't involve searching for every single file in Groups & Trees and performing those steps... for every one of those 60 files. Is that possible? Is there a right (or better) way to import a new language into this Xcode project?

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  • How to add data from an NSTextField to a Core Data Attribute without having to press Return or Tab a

    - by roy-fleming
    I use a sheet with 3 NSTextFields and a Cancel- and OK-Button to edit the attributes of a Core Data Entity. The text entered in the NSTextFields is only updated in the Core Data Entity if i press Tab or Return after writing in the NSTextField or if i focus another NSTextField with the mouse. If i just enter text in an NSTextField and press the OK-Button the entered text is lost. Is there some attribute i can set in Interface Builder to change this NSTextField behaviour?

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  • how to delete contents from plist programmatically ?

    - by srikanth rongali
    I have a plist file. I want to delete the data from the plist. How can I do it programmatically ? My Plist have an array cells. cells is filled by dictionaries . Each dictionary is filled by string. I used the following way. NSString* plistPath1 = [[NSBundle mainBundle] pathForResource:@"details" ofType:@"plist"]; [cells removeObjectAtIndex:[clickedButtonPath row]]; NSMutableArray *array1 = [[NSMutableArray alloc] initWithCapacity:4]; array1 = cells; [array1 writeToFile:plistPath1 atomically: YES]; But the plist is not taking the changes. Thank you.

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  • Is NSXMLParser's parse method asynchronous

    - by Ben Guest
    Is NSXMLParser's parse method asynchronous? in other words if i have an NSXMLParse object and i call [someParseObject parse] from the main thread, will it block the main thread while it does it's thing? -Thanks for answering this seemingly noob question. -Ben

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  • NSScrollView - pattern background - how to start from top-left corner?

    - by dzolanta
    To fill NSScrollview with pattern image I use - (void)setBackgroundColor:(NSColor *)aColor method where aColor is created with + (NSColor *)colorWithPatternImage:(NSImage *)image method. Despite of what isFlipped returns for NSScrollView and its content view, pattern start repeat from bottom-left corner while I want it to start from top-left corner. How can I achieve that?

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  • How can I pop a view from a UINavigationController and replace it with another in one operation?

    - by Matt Brandt
    I have an application where I need to remove one view from the stack of a UINavigationController and replace it with another. The situation is that the first view creates an editable item and then replaces itself with an editor for the item. When I do the obvious solution within the first view: MyEditViewController *mevc = [[MYEditViewController alloc] initWithGizmo: gizmo]; [self retain]; [self.navigationController popViewControllerAnimated: NO]; [self.navigationController pushViewController: mevc animated: YES]; [self release]; I get very strange behavior. Usually the editor view will appear, but if I try to use the back button on the nav bar I get extra screens, some blank, and some just screwed up. The title becomes random too. It is like the nav stack is completely hosed. What would be a better approach to this problem? Thanks, Matt

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  • How we should load the MFMailViewController in cocos2d ?

    - by srikanth rongali
    I am writing an app in using cocos2d. This method I have written for the selector goToFirstScreen: . The view is in landscape mode. I need to send an email. So, I need to launch the MFMailComposeViewController. I need it in portrait mode. But, the control is not entering in to viewDidLoad of the mailMe class. The problem is in goToScreen: method. But, I do not get where I am wrong ? -(void)goToFirstScreen:(id)sender { NSLog(@"goToFirstScreen: "); CCScene *Scene = [CCScene node]; CCLayer *Layer = [mailME node]; [Scene addChild:Layer]; [[CCDirector sharedDirector] setAnimationInterval:1.0/60]; [[CCDirector sharedDirector] pushScene: Scene]; } This is my mailMe class to launch mail controller #import <UIKit/UIKit.h> #import <MessageUI/MessageUI.h> #import <MessageUI/MFMailComposeViewController.h> #import "cocos2d.h" @interface mailME : CCLayer <MFMailComposeViewControllerDelegate> { UIViewController *mailComposer; } -(void)displayComposerSheet; -(void)launchMailAppOnDevice; @end #import "mailME.h" @implementation mailME -(void)viewDidLoad { NSLog(@"Enetrd in to mail"); Class mailClass = (NSClassFromString(@"MFMailComposeViewController")); if (mailClass != nil) { if ([mailClass canSendMail]) { [self displayComposerSheet]; } else { [self launchMailAppOnDevice]; } } else { [self launchMailAppOnDevice]; } } -(void)displayComposerSheet { CCDirector *director = [CCDirector sharedDirector]; [director pause]; [director stopAnimation]; [director.openGLView setUserInteractionEnabled:NO]; mailComposer = [[UIViewController alloc] init]; [mailComposer setView:[[CCDirector sharedDirector]openGLView]]; [mailComposer setModalTransitionStyle:UIModalTransitionStyleCoverVertical]; MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init]; picker.mailComposeDelegate = self; [picker setSubject:@"Hello!"]; NSArray *toRecipients = [NSArray arrayWithObject:@"[email protected]"]; [picker setToRecipients:toRecipients]; NSString *emailBody = @"It is not working!"; [picker setMessageBody:emailBody isHTML:YES]; [mailComposer presentModalViewController:picker animated:NO]; [picker release]; } - (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error { switch (result) { case MFMailComposeResultCancelled: break; case MFMailComposeResultSaved: break; case MFMailComposeResultSent: break; case MFMailComposeResultFailed: break; default: break; } [mailComposer dismissModalViewControllerAnimated:NO]; [[UIApplication sharedApplication] setStatusBarOrientation:CCDeviceOrientationLandscapeLeft animated:NO]; CCDirector *director = [CCDirector sharedDirector]; [director.openGLView setUserInteractionEnabled:YES]; [director startAnimation]; [director resume]; [mailComposer.view.superview removeFromSuperview]; } -(void)launchMailAppOnDevice { NSString *recipients = @"mailto:[email protected]?&subject=Hello!"; NSString *body = @"&body=It is not working"; NSString *email = [NSString stringWithFormat:@"%@%@", recipients, body]; email = [email stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; [[UIApplication sharedApplication] openURL:[NSURL URLWithString:email]]; } - (void)dealloc { [super dealloc]; } @end

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  • NSOutlineview - strange behavior after reloading data

    - by matei
    I have a NSOutlineView which loads data from a data source. The table is displayed in a panel. The items shown in the table are items which belong to an object (the relation is one-to many between the object and the items). I have a list of objects in a combo box (in fact a NSPopupButton), and when I select another object in the combo box, I want it's items to be shown in the table (the NSOutlineView). I managed to do all this , however when I select another object from the combo box, not all of it's items are displayed. I have put some logging messages in the data source and it seems that there are some items that are being returned from the data source , but are not shown in the table (and are not queried for children). Now the strange part is that when I click the main window (as I said, all that I described here is in a NSPanel loaded on top of the window) , all the data is displayed correctly. It seems as if clicking the main window triggers something in the NSOutlineView that makes it display the missing items, but I can't tell what it is.

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  • Using Apple autorelease pools without Objective-C

    - by PierreBdR
    I am developing an application that needs to work on Linux, Windows and Mac OS X. To that purpose, I am using C++ with Qt. For many reasons, on Mac OS X, I need to use CoreFoundation functions (such as CFBundleCopyBundleURL) that creates core objects that need to be released with CFRelease. But doing so generate a lots of these warnings: *** __NSAutoreleaseNoPool(): Object 0x224f7e0 of class NSURL autoreleased with no pool in place - just leaking All the code I've seen concerning these autorelease pools are written in Objective-C. Does anybody know how to create/use autorelease pools in C or C++?

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  • Change UIButton Background Image more than once per second

    - by beta.services
    I am currently working with the iPhone SDK. I have a NSTimer that changes the background image of a UIButton. Once this is complete, it will trigger the same action again (reset the NSTimer) for a predetermined number of times. My problem is that if my NSTimer is set to execute more than once per second. (0.75, say) The background image wont change. I am using NSLog to check that the event fires. But the button image will just remain in its original state. Is there any way to change the background image more often than once per second? This is my timer : [NSTimer scheduledTimerWithTimeInterval: tmpLvlSpeed target: self selector: @selector(simPressRed:) userInfo: nil repeats: NO]; And the code to change the image: [btnRed setImage:[UIImage imageNamed:@"btn_red.png"] forState:UIControlStateNormal]; if tmpLvlSpeed is less than 1.0, the button image will never change. Even though the simPressRed function will still fire. Any clues? Is there an update cycle I can modify?

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  • Proper way to copy a readonly NSMutableArray

    - by Jon Hull
    I have an object with a readonly property that I am trying to implement NSCopying for. It has a mutableArray called "subConditions" (which holds "SubCondition" objects). I have made it readonly because I want callers to be able to change the data in the array, but not the array itself. This worked really well until it was time to write the -copyWithZone: method. After fumbling around a bit, I managed to get something that seems to work. I am not sure if it is the best practice though. Here is a simplified version of my -copyWithZone: method: -(id)copyWithZone:(NSZone*)zone { Condition *copy = [[[self class]allocWithZone:zone]init]; NSArray *copiedArray = [[NSArray alloc]initWithArray:self.subConditions copyItems:YES]; [copy.subConditions setArray:copiedArray]; [copiedArray release]; return copy; } Is this the correct/best way to copy a readonly mutableArray?

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  • problem with reload data from table view after come back from another view

    - by user129677
    I have a problem in my application. Any help will be greatly appreciated. Basically it is from view A to view B, and then come back from view B. In the view A, it has dynamic data loaded in from the database, and display on the table view. In this page, it also has the edit button, not on the navigation bar. When user tabs the edit button, it goes to the view B, which shows the pick view. And user can make any changes in here. Once that is done, user tabs the back button on the navigation bar, it saves the changes into the NSUserDefaults, goes back to the view A by pop the view B. When coming back to the view A, it should get the new data from the UIUserDefaults, and it did. I user NSLog to print out to the console and it shows the correct data. Also it should invoke the viewWillAppear: method to get the new data for the table view, but it didn't. It even did not call the tableView:numberOfRowsInSection: method. I place a NSLog statement inside this method but didn't print out in the console. as the result, the view A still has the old data. the only way to get the new data in the view A is to stop and start the application. both view A and view B are the subclass of UIViewController, with UITableViewDelegate and UITableViewDataSource. here is my code in the view A : - (void)viewWillAppear:(BOOL)animated { NSLog(@"enter in Schedule2ViewController ..."); // load in data from database, and store into NSArray object //[self.theTableView reloadData]; [self.theTableView setNeedsDisplay]; //[self.theTableView setNeedsLayout]; } in here, the "theTableView" is a UITableView variable. And I try all three cases of "reloadData", "setNeedsDisplay", and "setNeedsLayout", but didn't seem to work. in the view B, here is the method corresponding to the back button on the navigation bar. - (void)viewDidLoad { UIBarButtonItem *saveButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemSave target:self action:@selector(savePreference)]; self.navigationItem.leftBarButtonItem = saveButton; [saveButton release]; } - (IBAction) savePreference { NSLog(@"save preference."); // save data into the NSUSerDefaults [self.navigationController popViewControllerAnimated:YES]; } Am I doing in the right way? Or is there anything that I missed? Many thanks.

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  • Core Data - NSPredicate to filter to-many relationship

    - by Macatomy
    I have 2 entities, Task and List. Each task has a to-one relationship to a List object called "list", and there is an inverse relationship with List, which has a to-many relationship with Task called "tasks". I'm trying to use a fetch request with an NSPredicate to get all the Task objects that belong to a specified List: NSPredicate *predicate = [NSPredicate predicateWithFormat:@"list=%@", theList]; [fetchRequest setPredicate:predicate]; (where "theParent" is a reference to a List object). However this returns no fetched objects. If I take out the predicate, then the objects are returned (so I do know they exist, and by NSLogging theList I know it has Task objects associated with it). Thanks

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  • Go back to main window once secondView is loaded

    - by Ruthy
    Hi, I have a Tableview on AppDelegate That calls a SecondView (dvController) when DidSelectRowAtIndexPath using: [self.window addSubview:[dvController view]]; On SecondView I defined a button linked to IBAction that should go back to previous view. It works great but when row selected but, How could then go back to previous view if main one is AppDelegate? self.window addSubview:[?? view]]; Should be basic concept but I am quite new and unable to get the solution. Thanx :)

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  • Break NSString using an NSString, get everything after the string that was used to break/separate.

    - by Cole
    I'm trying to get the DOE,JOHN from the below NSString: IDCHK9898960101DL00300171DL1ZADOE,JOHN I was trying to split the string on 1ZA, as that will be constant. Here's what I've tried so far, but it's giving me the opposite of what I'm looking for: NSString *getTheNameOuttaHere = @"IDCHK9898960101DL00300171DL1ZADOE,JOHN"; // scan for "1ZA" NSString *separatorString = @"1ZA"; NSScanner *aScanner = [NSScanner scannerWithString:getTheNameOuttaHere]; NSString *thingsScanned; [aScanner scanUpToString:separatorString intoString:&thingsScanned]; NSLog(@"container: %@", thingsScanned); Output: container: IDCHK9898960101DL00300171DL Any help would be great! Thanks!

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