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  • Completely uninstalling both versions of XCode

    - by Mugunth Kumar
    As usual I typed sudo Library/uninstall-devtools --mode=all It uninstalled the first version (Beta) properly. Tried the same thing on the older Stable Version which I have installed to "XCode Stable" Getting this error Use of uninitialized value $dir_name in substitution (s///) at Library/uninstall-devtools line 153. Use of uninitialized value $developer_dir in concatenation (.) or string at Library/uninstall-devtools line 120 Anyone else facing this problem? Can I just trash the installation folder?

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  • Why Is Bottom Half of Custom UIActionSheet with UIDatePicker Disabled?

    - by Gorgando
    Everything seems to be working great with my UIActionSheet that contains a UIDatePicker except that the bottom half of the DatePicker is disabled. Visually there is a shadow that makes the bottom half of the picker darker than the top half. Everything in the bottom half is disabled and I can't for the life of me figure out how to enable it. I also noticed in my other "normal" UIActionSheets that just contain buttons, the bottom half of the cancel buttons are disabled. This is the code for my custom UIActionSheet: self.datePickerView = [[UIDatePicker alloc] init]; self.datePickerView.datePickerMode = UIDatePickerModeDate; self.actionSheet = [[UIActionSheet alloc] initWithTitle:@"Choose a Follow-up Date" delegate:self cancelButtonTitle:nil destructiveButtonTitle:nil otherButtonTitles:@"Done", nil]; [self.actionSheet showInView:self.view]; [self.actionSheet addSubview:self.datePickerView]; [self.actionSheet sendSubviewToBack:self.datePickerView]; [self.actionSheet setBounds:CGRectMake(0,0,320, 500)]; CGRect pickerRect = self.datePickerView.bounds; pickerRect.origin.y = -95; self.datePickerView.bounds = pickerRect; I've tried several things including sendSubviewToBack, BringSubviewToFront, etc but I have not had any luck. I appreciate your help!

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  • conceptual question : what do performSelectorOnMainThread do?

    - by hib
    Hello all, I just come across this strange situation . I was using the technique of lazy image loading from apple examples . when I was used the class in my application it gave me topic to learn but don't what was actually happening there . So here goes the scenario : I think everybody has seen the apple lazytableimagesloading . I was reloading my table on finishing the parsing of data : - (void)didFinishParsing:(NSMutableArray *)appList { self.upcomingArray = [NSMutableArray arrayWithArray:loadedApps]; // we are finished with the queue and our ParseOperation [self.upcomingTableView reloadData]; self.queue = nil; // we are finished with the queue and our ParseOperation } but as a result the the connection was not starting and images were not loading . when I completely copy the lazyimageloading and I replaced the above code with the following code it works fine - (void)didFinishParsing:(NSMutableArray *)appList { [self performSelectorOnMainThread:@selector(handleLoadedApps:) withObject:appList waitUntilDone:NO]; self.queue = nil; // we are finished with the queue and our ParseOperation } So I want to know what is the concept behind this . Please let me know if you can not understand the question or details are not enough because I desperately want to know why it is like this ?

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  • Opening popup links in UIWebView, possible?

    - by Jasarien
    Hey guys, I have a UIWebView which I'm using as an embedded browser within my app. I've noticed that links in webpages that open new windows are ignored without any call into my code. I've tried breakpointing on - (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType and then selecting a link that would open a popup window, and the breakpoint is never hit. Is there anything I can do to intercept that selection of the popup link and get the URL and just load it normally? I'm not interested in displaying a popup window in the app itself, I just want the URL of whatever is going to be loaded in the popup window to load in the main webview itself. Is this possible? Thanks!

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  • Issue with CAAnimation and CALayer Transforms

    - by Brian
    I have a CALayer that I want to animate across the screen. I have created two methods: one slide open the layer and one to slide close. These both work by assigning a property to the layer's transform property. Now I want to use a CAKeyFrameAnimation to slide open the layer. I got this working so the layer slides open, but now I can't slide the layer close using my old method. I am trying to figure out why this is. Any help would be great. Code: - (id)init { if( self = [super init] ) { bIsOpen = NO; closeTransform = self.transform; openTransform = CATransform3DMakeTranslation(-235.0, 0.0, 0.0); } return self; } - (void)closeMenu { if( bIsOpen ) { self.transform = closeTransform; bIsOpen = !bIsOpen; } } - (void)openMenu { if( !bIsOpen ) { CAKeyframeAnimation *closeAnimation = [CAKeyframeAnimation animationWithKeyPath:@"transform"]; closeAnimation.duration = 1.0; closeAnimation.removedOnCompletion = NO; closeAnimation.fillMode = kCAFillModeForwards; closeAnimation.values = [NSArray arrayWithObjects:[NSValue valueWithCATransform3D:closeTransform],[NSValue valueWithCATransform3D:openTransform],nil]; closeAnimation.timingFunctions = [NSArray arrayWithObject:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear]]; [self addAnimation:closeAnimation forKey:@"transform"]; bIsOpen = !bIsOpen; } }

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  • Why does my UITableView change from UITableViewStyleGrouped to UITableViewStylePlain

    - by casper
    My application has a view controller that extends UITableViewController. The initialization method looks like this: - (id)initWithCoder:(NSCoder*)coder { if (self = [super initWithCoder:coder]) { self.tableView = [[UITableView alloc] initWithFrame:self.tableView.frame style:UITableViewStyleGrouped]; } return self; } When the view is initially loaded, it's displayed as UITableViewStyleGrouped. However, if my app ever receives a low memory warning, the above view changes to UITableViewStylePlain. There is no associated xib file with the View/Controller. The viewDidUnload and didReceiveMemoryWarning methods are straightforward: - (void)didReceiveMemoryWarning { // Releases the view if it doesn't have a superview. [super didReceiveMemoryWarning]; // Release any cached data, images, etc that aren't in use. } - (void)viewDidUnload { // Release any retained subviews of the main view. // e.g. self.myOutlet = nil; } My question is, why does the table style change when I receive a memory warning?

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  • Trying to compile MobileSubstrate addon - Undefined symbol

    - by eWolf
    Hi! I went through this tutorial to create a MobileSubstrate addon. I could compile the example hook without errors. But as soon as I add #import <SpringBoard/SBAwayController.h> in ExampleHookProtocol.h and SBAwayController *awayController = [SBAwayController sharedAwayController]; in ExampleHookLibrary.mm (as the first line of the __$ExampleHook_AppIcon_Launch function) I get the following error message when attempting to make (triggered by the latter change): Undefined symbols: "_OBJC_CLASS_$_SBAwayController", referenced from: __objc_classrefs__DATA@0 in ExampleHookLibrary.o ld: symbol(s) not found collect2: ld returned 1 exit status make: *** [ExampleHook.dylib] Error 1. The header file for SBAwayController is located in /var/toolchain/sys30/usr/include/SpringBoard, just like SBApplicationIcon.h, which is used by the ExampleHook. I'm compiling on my iPod touch 2G. Can anyone help me? Thanks in advance, Eric

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  • can not set the bool value of app setting

    - by user262325
    Hello everyone I use the codes below to read and write a bool value from my application: -(void)SaveAppSetting; {     NSUserDefaults *defaults=[NSUserDefaults standardUserDefaults];     bool b=true;     [defaults setBool:b forKey:@"AnyKey"]; [defaults synchronize]; } -(void)LoadAppSetting; {     NSUserDefaults *defaults=[NSUserDefaults standardUserDefaults];     bool b=[defaults boolForKey: @"AnyKey"] ; } I found that "LoadAppSetting" worked well, it could get the correct value of item with key "AnyKey". The function "SaveAppSetting" looked like no function, it reported no error, but it can not change value of the item with key "AnyKey". "AnyKey" setting in Setting bundle is item Dictionary Type String PSToggleSwitchSpecifier Title String AnyKey's Title Key String AnyKey DefaultValue Boolean Checked Is there any person met the same problem? Thanks interdev

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  • Objective - C, fastest way to show sequence of images in UIImageView

    - by Almas Adilbek
    I have hundreds of images, which are frame images of one animation (24 images per second). Each image size is 1024x690. My problem is, I need to make smooth animation iterating each image frame in UIImageView. I know I can use animationImages of UIImageView. But it crashes, because of memory problem. Also, I can use imageView.image = [UIImage imageNamed:@""] that would cache each image, so that the next repeat animation will be smooth. But, caching a lot of images crashed app. Now I use imageView.image = [UIImage imageWithContentsOfFile:@""], which does not crash app, but doesn't make animation so smooth. Maybe there is a better way to make good animation of frame images? Maybe I need to make some preparations, in order to somehow achieve better result. I need your advices. Thank you!

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  • New CATransform3DMakeRotation deletes old transformation?!

    - by david
    I added a CATransform3DMakeRotation to a layer. When I add another one it deletes the old one? The first one: [UIView beginAnimations:@"rotaty" context:nil]; [UIView setAnimationDuration:0.5]; [UIView setAnimationDelegate:self]; CGAffineTransform transform = CGAffineTransformMakeRotation(-3.14); kuvert.transform = CGAffineTransformRotate(transform, DegreesToRadians(134)); kuvert.center = CGPointMake(kuvert.center.x-70, kuvert.center.y+100); [UIView commitAnimations]; and the second one: CABasicAnimation *topAnim = [CABasicAnimation animationWithKeyPath:@"transform"]; topAnim.duration=1; topAnim.repeatCount=0; topAnim.fromValue = [NSValue valueWithCATransform3D:CATransform3DMakeRotation(0.0, 0, 0, 0)]; float f = DegreesToRadians(180); // -M_PI/1; topAnim.toValue=[NSValue valueWithCATransform3D:CATransform3DMakeRotation(f, 0,1, 0)]; topAnim.delegate = self; topAnim.removedOnCompletion = NO; topAnim.fillMode = kCAFillModeBoth; [topAnim setValue:@"flippy" forKey:@"AnimationName"]; [[KuvertLasche layer] addAnimation:topAnim forKey:@"flippy"]; The second one resets the view and applies itself after that. How do I fix this??

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  • how to get the http header in asynchronous request mode using ASIHHTTP

    - by user262325
    Hello everyone I hope to display the download file size by reading http header. I know there is way do this: ASIHTTPRequest request = [ASIHTTPRequest requestWithURL:url]; [request startSynchronous]; NSString poweredBy = [[request responseHeaders] objectForKey:@"X-Powered-By"]; NSString *contentType = [[request responseHeaders] objectForKey:@"Content-Type"]; but this is Synchronous mode, in Asynchronous mode it can be done as below: (void)requestFinished:(ASIHTTPRequest *)request { unsigned long long contentLength = [request contentLength]; } but 'requestFinished' is at the end of download. Is there an event to get the http header info at the beginning of download? Thank interdev

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  • NSUserDefaults not saving properly

    - by BWC
    Hey Guys I'm having issues with NSUserDefaults and I don't quite understand what's going on My App has 5 levels and each level does the exact same thing with NSUserDefaults (Retrieves the levels defaults, changes the value as the user plays the level and then sets the defaults and syncronizes at the end of the level) the first 4 levels...work without a hitch but the last level doesn't save the values. The app doesn't crash and the last level isn't the very last thing that happens, And I even have the defaults synchronized when the application terminates. Is there a max size on the NSUserDefaults or is there anything anyone can think of that I haven't, I'll post the code below but like I said the first four levels work perfectly //header NSUserDefaults *userData; @property(nonatomic,retain) NSUserDefaults *userData; //class file //Sets the boolean variables for the class to use userData = [NSUserDefaults standardUserDefaults]; boolOne = [userData boolForKey:@"LevelFiveBoolOne"]; boolTwo = [userData boolForKey:@"LevelFiveBoolTwo"]; boolThree = [userData boolForKey:@"LevelFiveBoolThree"]; boolFour = [userData boolForKey:@"LevelFiveBoolFour"]; boolFive = [userData boolForKey:@"LevelFiveBoolFive"]; boolSix = [userData boolForKey:@"LevelFiveBoolSix"]; boolSeven = [userData boolForKey:@"LevelFiveBoolSeven"]; //End Of Level [userData setBool:boolOne forKey:@"LevelFiveBoolOne"]; [userData setBool:boolTwo forKey:@"LevelFiveBoolTwo"]; [userData setBool:boolThree forKey:@"LevelFiveBoolThree"]; [userData setBool:boolFour forKey:@"LevelFiveBoolFour"]; [userData setBool:boolFive forKey:@"LevelFiveBoolFive"]; [userData setBool:boolSix forKey:@"LevelFiveBoolSix"]; [userData setBool:boolSeven forKey:@"LevelFiveBoolSeven"]; [userData synchronize]; When when I switch to the view that uses these defaults they values are correct but when I terminate the application and restart it, these values aren't saved, every other level does the exact same process this is the only level that doesn't work. I've stared at this for quite awhile and I'm hoping someone out there has run into the same problem and can give me some insight on how they resolved it. Thank you in Advance BWC

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  • Best way to store date/time into core data

    - by Dave
    Hi, For each course I am storing the day of the week the class the user has...and the start and end time and room no. What would be the best approach in terms of data type, Like for storing time?? so that when I pull it out I can display it e.g 1:00 PM. Thanks!

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  • How to serialize object containing NSData?

    - by AO
    I'm trying to serialize an object containing a number of data fields...where one of the fields is of datatype NSData which won't serialize. I've followed instructions at http://www.isolated.se but my code (see below) results in the error "[NSConcreteData data]: unrecognized selector sent to instance...". How do I serialize my object? Header file: @interface Donkey : NSObject<NSCoding> { NSString* s; NSData* d; } @property (nonatomic, retain) NSString* s; @property (nonatomic, retain) NSData* d; - (NSData*) serialize; @end Implementation file: @implementation Donkey @synthesize s, d; static NSString* const KEY_S = @"string"; static NSString* const KEY_D = @"data"; - (void) encodeWithCoder:(NSCoder*)coder { [coder encodeObject:self.s forKey:KEY_S]; [coder encodeObject:self.d forKey:KEY_D]; } - (id) initWithCoder:(NSCoder*)coder; { if(self = [super init]) { self.s = [coder decodeObjectForKey:KEY_STRING]; self.d [coder decodeObjectForKey:KEY_DATA]; } return self; } - (NSData*) serialize { return [NSKeyedArchiver archivedDataWithRootObject:self]; } @end

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  • XCode 3.2 does not mark unit test assert failures in the editor

    - by Cliff
    I've been off in Java land for about a month or so and now, upon returning to XCode I feel lost. I've upgraded 1st to 3.1.2 then recently to 3.2 and also got a new Mac with Snow Leopard so I'm not exactly sure when the problem surfaced. I just know that I used to get little red bubbles in my unit test next to the failing asserts and that no longer seems to happen. Is there a way to restore this? I've been trying to use Apple's own SenTesting framework instead of GoogleTools for mac like I used to. Should I revert to Google Tools? Does anyone have an answer?

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  • Trying to parse twitter trends

    - by timothy5216
    Im trying to parse twitter trends but i keep getting a parser error at "as_of". anyone know why this is happening? EDIT: Here is the code im using NSMutableArray *tweets; tweets = [[NSMutableArray alloc] init]; NSURL *url = [NSURL URLWithString:@"http://search.twitter.com/trends/current.json"]; trendsArray = [[NSMutableArray alloc] initWithArray:[CCJSONParser objectFromJSON:[NSString stringWithContentsOfURL:url encoding:4 error:nil]]]; NSMutableDictionary *dict = [[NSMutableDictionary alloc] init]; for (int i = 0; i < [trendsArray count]; i++) { dict = [[NSMutableDictionary alloc] init]; //[post setObject: [[currentArray objectAtIndex:i] objectForKey:@"query"]]; [dict setObject:[trendsArray objectAtIndex:i] forKey:@"trends"]; //[dict setObject:[trendsArray objectAtIndex:i] forKey:@"query"]; //[post setObject:[trendsArray objectAtIndex:i] forKey:@"as_of"]; [tweets addObject:dict]; //post = nil; }

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  • UIDatePicker - Problem Localizing

    - by Smorpheus
    Hello, I've created a UIDatePicker in my app and I also have support for several languages. My UIDatePicker is created in Interface Builder, and I have created a seperate localization XIB so I can customize my UIDatePicker. Setting the "Locale" option in IB appears to do nothing. Attempting to change my DatePicker programatically with Locale and NSCalender also do nothing via the following code: NSLocale * locale = [[NSLocale alloc] initWithLocaleIdentifier:@"es_ES"]; datePicker.locale = locale; datePicker.calender = [locale objectForKey:NSLocaleCalender]; This results in an english picker. Here's the really weird thing though. The word for "Today" is translated. As seen in the attached screenshot. (OK I'm not allowed to post images. But imagine a Date & Time picker with "May" in English and "Today" written "Ajourd'hui". Based on what I've read, adding the UIDatePicker programatically doesn't seem to help much.

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  • Best way to change XIB files based on rotation?

    - by Graeme
    Hi, My app has so far just been a portrait-based application. However, I am adding landscape mode to a new version, but have found that my XIB files look shocking when rotated from portrait to landscape. Apparently I need to make a landscape version of each XIB and use some code to change with XIB launches based on what rotation occurs. Am I right? If so, where do I go from here? Are there any Apple sample apps utilising this code? FYI - My XIB files just have text in them. Thanks.

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  • Problem with migrating from Texture2D to CCTexture2D (Setting CCSprite texture)

    - by marie
    My problem is that whenever I change the texture of a sprite, the new texture will retain the size of the original sprite's texture. I have this code: mySprite = [CCSprite spriteWithFile:@"mySprite.png"]]; ... // change current stage here CCTexture2D *newTexture=[[[CCTexture2D alloc]initWithImage:[UIImage imageNamed:[NSString stringWithFormat:@"stage number %d.png",currentStageNumber]]]autorelease]; [mySprite setTexture:newTexture]; The new sprite is stretched or compressed depending on the size of the original sprite. If the original sprite is larger, the new texture is stretched. I didn't have this problem when I was using cocos2d v0.8 What am I doing wrong?

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  • ASIHTTPRequest - PostData but GET Method

    - by RyanJM
    Is there a way to see what request ASIHTTPRequest is making? My code is: ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url]; [request appendPostData:[data dataUsingEncoding:NSUTF8StringEncoding]]; [request setRequestMethod:@"GET"]; [request addRequestHeader:@"Content-Type" value:@"application/json"]; And I'm trying to duplicate: curl -X GET "http://www.myurl.com/_api/my/url" -H "Content-Type: application/json" -d {"api_key":"my_special_api_key_123"} The curl works fine, but I can't get the ASIHTTPRequest to work properly. Any ideas?

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  • localization with core data

    - by Tristan
    Hi there, Does anyone have any recommendations with localization of core data? My application will have information that will sometimes be the same in both langauges, such as a person's photo, or different such as the person's biography. From what I understand, it's possible to localize the field names (http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/CoreData/Articles/cdUsingMOM.html#//apple_ref/doc/uid/TP40005190-SW13), but what's the best course of action for field values? Thanks! Tristan

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