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  • I need a way to not rotate a subview when the parent view rotates

    - by jmurphy
    Hello, I have a situation where I have a view, and several subviews, and the view and all but one of its subviews are expected to rotate. The one subview that I don't want to rotate is a UIImageView and the image gets distorted when I rotate so I need it to simply not rotate when the rest of the views components rotate. Does anybody know of a way to achieve this? Is there some excludeFromRotating property I've overlooked? Thanks!

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  • I want close a CFSocket

    - by zp26
    Hi, I have create a socket with CFSocket. My program is correct but now i wanna close the socket (client side). There is a istruction? Thanks and sorry for my English XP My code: CFSocketRef s; s = CFSocketCreate( NULL, PF_INET, SOCK_STREAM, IPPROTO_TCP, kCFSocketDataCallBack, AcceptDataCallback, &context); ... CFSocketConnectToAddress(s, address, 0); ... //here i wanna close the socket

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  • Setting the UIImagePickerController delegate throws a warning about UINavigationControllerDelegate

    - by synic
    The code: UIImagePickerController *picker = [[UIImagePickerController alloc] init]; picker.delegate = self; picker.sourceType = UIImagePickerControllerSourceTypeCamera; [self.navigationController presentModalViewController:picker animated:YES]; [picker release]; The warning, which shows up on the picker.delegate = self; line: Class 'CardEditor' does not implement the 'UINavigationControllerDelegate' protocol Why does the UIImagePickerController care if my class implements the UINavigationControllerDelegate protocol?

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  • How to stop the targets generated by schedule:@selector(target:) interval:timeInterval ?

    - by srikanth rongali
    I am using [self schedule:@selector(target:) interval:timeInterval]; for generating bullets in shooting game in cocos2d. In target: I called method targetGenerate to generate for bullet. The enemy generates these bullets. After the player won or enemy won the game the bullets should stop. But, I could not make them stop. I used flags for this. But they did either work. If I set flag1 = 1; for game won. I am using [self schedule:@selector(update:)]; for updating the bullet position to know it hits the player or not ? And I tried like this -(id)init { if( (self = [super init]) ) { //code for enemy [self schedule:@selector(target:) interval:timeInterval]; [self schedule:@selector(update:)]; }return self; } -(void)target:(ccTime)dt { if(flag != 1) [self targetGenerate]; } -(void)targetGenerate { //code for the bullet to generate; CCSprite *bullet = … } -(void)update:(ccTime)dt { //code for to know intersection of bullet and player } But it was not working. How can I make the bullets to disappear after player won the game or enemy won the game ? Thank you.

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  • Extract attributes from NSManagedObject array.

    - by Pavel Peroutka
    NSFetchRequest *req = [NSFetchRequest init]; NSEntityDescription *descr = [NSEntityDescription entityForName:@"City" inManagedObjectContext:context]; [req setEntity:descr]; NSSortDescriptor *sort = [[NSSortDescriptor alloc] initWithKey:@"streetName" ascending:YES]; [req setSortDescriptors:[NSArray arrayWithObject:sort]]; [sort release]; //fetch NSError *error; NSArray *result = [context executeFetchRequest:req error:&error]; //extract names NSMutableArray *streets = [[NSMutableArray alloc] init]; for () { ??? = [array objectAtIndex:i]; [streets addObject:name]; } I expected Core Data to be little more intuitive. I am new in it and I could use some help. I fetched all objects(rows) from the entity (table) City. Now I have an array of objects. From the array I need to extract the attribute “streetName” to an array which will feed the picker. I figured I need to do it in the loop but I could not figure out the way to do it. Please help. I have a background with SQL but Core Data is still a big mystery to me. Is there any publication which would take a SQL statement and show comparable Core Data syntax? Thanks.

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  • "Don't Allow" in LocationManager keeps logging errors

    - by stephanie.moreau
    I have an app that checked for location. It asks the user to use location and if the user says no on the menu there is an issue when i load the mapview. Once i select the mapView it asks for the user location again. If the user says no again my console keeps displaying errors/warning as well as my NSLog from the "didFailWithError" of my location Manager class. Is there a way of stopping the LocationManage:didFailWithErrors if the user has already said no? I don't think Apple would accept my app if the Log file gets filled up my the LocationManager Here is an example of what gets repeated in the console ERROR,Time,290362745.002,Function,"void CLClientHandleDaemonDataRegistration(__CLClient*, const CLDaemonCommToClientRegistration*, const __CFDictionary*)",server did not accept client registration 1 WARNING,Time,290362745.005,Function,"void CLClientHandleDaemonInvalidation(__CFMessagePort*, void*)",client 1035.0 has been disconnected from daemon 2010-03-15 12:19:05.002 SAQ[1035:207] LocationManager Error Denied by user

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  • NSString: EOL and rangeOfString issues

    - by carloe
    Could someone please tell me if I am missing something here... I am trying to parse individual JSON objects out of a data stream. The data stream is buffered in a regular NSString, and the individual JSON objects are delineated by a EOL marker. if([dataBuffer rangeOfString:@"\n"].location != NSNotFound) { NSString *tmp = [dataBuffer stringByReplacingOccurrencesOfString:@"\n" withString:@"NEWLINE"]; NSLog(@"%@", tmp); } The code above outputs "...}NEWLINE{..." as expected. But if I change the @"\n" in the if-statement above to @"}\n", I get nothing.

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  • How to auto-increment reference number persistently when NSManagedObjects created in core-data.

    - by KayKay
    In my application i am using core-data to store information and saving these data to the server using web-connectivity i have to use MySql. Basically what i want to do is to keep track of number of NSManagedObject already created and Whenever i am adding new NSManagedObject, based on that counting it will assign the class a Int_value which will act as primary_key in MySql. For examaple, there are already 10 NSManagedobjects, and when i will add new one it will assign it "11" as primary_key. these value will have to be increasing because there is no deleting of NSManagedObject. From my approach its about static member in applicationDelegate whose initial value can be any integer but should be incremented by one(like auto-increment) everytime new NSManagedObject is created and also it should be persistent. I am not clear how to do this, please give me suggestions. Thanks in advance.

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  • How do I hook up a custom tab bar build in IB to a UINavigationController Object instanced in XCODE?

    - by David Hsu
    What I did to create the custom NAV BAR: 1. Created an empty XIB and added a view with class UINavigationController. 2. Under the view I added the navigation bar and a left and right button onto the nav bar. 3. Control drag from "File Owner" to "View" Inside my class where I call the modal view navigation controller: SignupViewController *addController = [[SignupViewController alloc] initWithNibName:@"SignupViewController" bundle:nil]; // Create the navigation controller and present it modally. UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:addController]; navigationController.navigationBar = ///WHAT SHOULD GO HERE? [self presentModalViewController:navigationController animated:YES]; Thank in advance!

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  • drawRect is not executing

    - by coure06
    I have ClockViewController.h and ClockViewController.m inherited from UIViewController. Also 2 other files ClockView.h and ClockView.m inherited from UIView. In Interface builder i have selected Class "ClockView" for the clock, but my drawRect is not executing. I am calling it via setNeedsDisplay from a timer function. even the timer function is not calling.

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  • What exactly is a no-parameter method name?

    - by mystify
    From the Core Data docs: A property name cannot be the same as any no-parameter method name of NSObject or NSManagedObject—for example, you cannot give a property the name “description” Ok, so -description is blocked for property names. I guess it's because of KVC. But what exactly does "no-parameter" mean? Is that any method which does not take a parameter? So in other words: Any property of NSObject or NSManagedObject ANY method name of NSObject or NSManagedObject, which does not take a parameter Did I get that right?

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  • Extend TTPhotoViewController with custom TTPhotoView

    - by ggould75
    I have successfully integrated the three20 framework in my project, and I have extended the TTPhotoViewController to add some further functionality. Now I need to add some subviews to the TTPhotoView loaded by the TTPhotoViewController. In particular I would like to add that subviews after every TTPhotoView as been loaded. These subviews represents sensible area over the image so they should scale proportionally with the image. The user can tap a subview to get extra info about the image. I don't know how to implement this behavior. Should I extend the TTPhotoView and make sure that the TTPhotoViewController use this extended version instead of its TTPhotoView? Could someone point me to the right direction? Thank you

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  • How to make a big switch control structure with variable check values?

    - by mystify
    For example, I have a huge switch control structure with a few hundred checks. They're an animation sequence, which is numbered from 0 to n. Someone said I can't use variables with switch. What I need is something like: NSInteger step = 0; NSInteger i = 0; switch (step) { case i++: // do stuff break; case i++: // do stuff break; case i++: // do stuff break; case i++: // do stuff break; } The point of this is, that the animation system calls a method with this big switch structure, giving it a step number. I want to be able to simply cut-copy-paste large blocks and put them in a different position inside the switch. for example, the first 50 blocks to the end. I could do that easily with a huge if-else structure, but it would look ugly and something tells me switch is much faster. How to?

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  • how and where should I set and load NSUserDefaults in a utility app?

    - by Greywolf210
    I have followed directions in several books and suggestions on some forums but I have issues with my app crashing when I try and set user preferences. I have the following lines on my "done" method in my flipscreenViewController: - (IBAction)done { NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults]; [userDefaults setBool:musicOnOff.on forKey:kMusicPreference]; [userDefaults setObject:trackSelection forKey:kTrackPreference]; [self.delegate flipsideViewControllerDidFinish:self];} and the following 2 methods in my mainViewController: -(void)initialDefaults{ NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults]; [userDefaults setBool:YES forKey:kMusicPreference]; [userDefaults setObject:@"Infinity" forKey:kTrackPreference];} -(void) setvaluesFromPreferences { NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults]; BOOL musicSelection = [userDefaults boolForKey:kMusicPreference]; NSString *trackSelection = [userDefaults objectForKey:kTrackPreference]; if(musicSelection == YES) { if([trackSelection isEqualToString:@"Infinity"]) song = [[BGMusic alloc]initWithPath:[[NSBundle mainBundle] pathForResource:@"Infinity" ofType:@"m4a"]]; else if([trackSelection isEqualToString:@"Energy"]) song = [[BGMusic alloc]initWithPath:[[NSBundle mainBundle] pathForResource:@"Energy" ofType:@"m4a"]]; else if([trackSelection isEqualToString: @"Enforcer"]) song = [[BGMusic alloc]initWithPath:[[NSBundle mainBundle] pathForResource:@"Enforcer" ofType:@"m4a"]]; else if([trackSelection isEqualToString: @"Continuum"]) song = [[BGMusic alloc]initWithPath:[[NSBundle mainBundle] pathForResource:@"Continuum" ofType:@"m4a"]]; else if([trackSelection isEqualToString: @"Pursuit"]) song = [[BGMusic alloc]initWithPath:[[NSBundle mainBundle] pathForResource:@"Pursuit" ofType:@"m4a"]]; [song setRepeat:YES]; counter = 0; } else [song close];} Anyone willing to help out? Thanks a bunch, Chuck

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  • Cocoa for the non-techinical

    - by annoyed
    How would you describe and explain Cocoa in non-technical terms, with lots of analogies to common, everyday things. For example, imagine you are describing it to a 5-year-old who keeps asking why? at the end if each explanation. This would invariable delve into the theory of OO so it could get lengthy, but the concept is important to the 'why' of Cocoa.

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