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  • Is a tab bar configuration view can be customized ?

    - by Dirty Henry
    I have an application with 8 tabbar items in the tabbar controller. Is there a way I can customize the layout of the "... (more)" view in which you can configure which tab bar items should appear in the main tab bar. It seems to be a table view controller but i'd like to use custom cell views and a background image.

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  • Get tableView:heightForRowAtIndexPath: to happen after tableView:cellForRowAtIndexPath:?

    - by Triz
    I've got some UITableViewCells that need to change their height depending on the length of the strings inside. I'm calculating the necessary height inside tableView:cellForRowAtIndexPath:, and then storing it in a variable (self.specialRowHeight). Then I've got: - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath { if (indexPath.section == SPECIAL_SECTION) { return self.specialRowHeight; } else { return 44; } } Except that seems to be getting called before the tableView:cellForRowAtIndexPath: bit, so it's always zero. Is there a way around this, or perhaps a different way to do it? Thanks!

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  • UIWebView - remote html loading local images

    - by AragornSG
    I'm trying to develop an application using UIWebView. The app is loading remote URL's, so in order to make it quick I want it to use the images included in the application bundle. I was wondering if there is a way to do it without forcing the application to manually replace the address of each image to point into local resources?

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  • When I select any segment in segmentControll it doesnot show highlighted

    - by rathodrc
    NSArray *itemArray = [NSArray arrayWithObjects:@"one", @"Two", @"Three", nil]; segmentControl = [[UISegmentedControl alloc] initWithItems:itemArray]; segmentControl.frame = CGRectMake(5, 5, 325, 35); segmentControl.segmentedControlStyle = UISegmentedControlStyleBar; segmentControl.tintColor = [UIColor blackColor]; [self changeUISegmentFont:segmentControl]; //[self.view addSubview:segmentControl]; self.navigationItem.titleView = segmentControl; [segmentControl addTarget:self action:@selector(segmentAction:) forControlEvents:UIControlEventValueChanged]; This is my code of segment control and my problem is .. When I select any segment it does not show me that that segment is selected.. I mean it is not shown highlighted.. can Anyone tell me what the problem is??

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  • View Loading Problem

    - by riteshkumar1905
    Hello I Using a tab bar with navigation bar with navigation bar.We have a list of songs in song list no navigation bar and no tab bar. when i select a song and then load xib with (tab bar+navigation bar) in this xib i creat a segment for going to list. - (void)segmentAction:(id)sender{ if([sender selectedSegmentIndex] == 0) { [MainController1 release]; songs *mainController=[[songs alloc]init]; [self.navigationController pushViewController:mainController animated:NO]; [mainController release]; } } this code load list of song but navigation bar and tab bar is still there. so, how i load our list.

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  • How do you check to see if a variable has changed every second or less in objective c?

    - by James
    I am using an if statement to check the value of a BOOLEAN when i click on a button. When the button is clicked if the value is false i want to display a UIActivityIndicator and if the value is true i want to push the new view. I can do this fine but i want the view to change automatically when the BOOLEAN Becomes true if the user has already clicked the button. So my question is how do you check to see if a value has changed everysecond or less?

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  • Images appear in simulator but not when uploading to ipod touch (3.0)

    - by user139190
    I created a simple test app with an image (as well as a button with an image) and it runs fine in the simulator. But when uploading to the iPod, none of the images appear. The button appears but with no image. A few things worth mentioning: - Today's massive achievement was making it beyond the code signing errors and so I have not had any applications uploaded to the device until now. IOW, it's not a sudden change. - The png image is about 100 x 200. - I also set an icon image (png 24 x 24) that does not appear either. Thanks in advance for any advice.

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  • Why am I getting a EXC_BAD_ACCESS in a NSTimer selector?

    - by AngeDeLaMort
    I've got quite a weird problem. To make it short, i'll write some pseudo-code: init: create a dictionary and insert n elements. create a "repeat timer" and add it to the currentRunLoop using the timerRefresh selector. timerRefresh: using a list of keys, find the items in the dictionary if the item exists -> call a function So, for an unknown reason, I get an EXC_BAD_ACCESS when I do: [item function]; But I traced the address I got from the dictionary items and it's ok. The ref count of the items in the dictionary is still 1. The {release, dealloc} of the items in the dictionary aren't called. Everything seems fine. Also, to make it worst, it works for some items. So, I'm wondering if there is a threading problem? or something else obscure? The callstack is quite simple: #0 0x93e0604b in objc_msgSend_fpret #1 0x00f3e6b0 in ?? #2 0x0001cfca in -[myObject functionm:] at myObject.m:000 #3 0x305355cd in __NSFireTimer #4 0x302454a0 in CFRunLoopRunSpecific #5 0x30244628 in CFRunLoopRunInMode #6 0x32044c31 in GSEventRunModal #7 0x32044cf6 in GSEventRun #8 0x309021ee in UIApplicationMain #9 0x000027e0 in main at main.m:14 So, any suggestion where to look would be appreciated.

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  • How to resize a UISwitch?

    - by mshsayem
    I have made a custom UISwitch (from this post). But the problem is, my custom texts are a bit long. Is there any way to resize the switch? [I tried setBounds, did not work] Edit: Here is the code I used: @interface CustomUISwitch : UISwitch - (void) setLeftLabelText: (NSString *) labelText; - (void) setRightLabelText: (NSString *) labelText; @end @implementation CustomUISwitch - (UIView *) slider { return [[self subviews] lastObject]; } - (UIView *) textHolder { return [[[self slider] subviews] objectAtIndex:2]; } - (UILabel *) leftLabel { return [[[self textHolder] subviews] objectAtIndex:0]; } - (UILabel *) rightLabel { return [[[self textHolder] subviews] objectAtIndex:1]; } - (void) setLeftLabelText: (NSString *) labelText { [[self leftLabel] setText:labelText]; } - (void) setRightLabelText: (NSString *) labelText { [[self rightLabel] setText:labelText]; } @end mySwitch = [[CustomUISwitch alloc] initWithFrame:CGRectZero]; //Tried these, but did not work //CGRect aFrame = mySwitch.frame; //aFrame.size.width = 200; //aFrame.size.height = 100; //mySwitch.frame = aFrame; [mySwitch setLeftLabelText: @"longValue1"]; [mySwitch setRightLabelText: @"longValue2"];

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  • Autorelease and properties

    - by ganuke
    I have few questions to ask about the following class #import <Cocoa/Cocoa.h> @interface SomeObject { NSString *title; } @property (retain) NSString *title; @end implementation SomeObject @synthesize title; -(id)init { if (self=[super init]) { self.title=[NSString stringWithFormat:@"allyouneed"]; } return self; } -(void)testMethod{ self.title=[[NSString alloc] init] ; } -(void)dealloc { self.title=nil; [super dealloc]; } In the .h file do we need to declare the title and sub when we add the property. is it not enough to add the @property (retain) NSString *title; line. 2.Do i need to autorelease both assignment to title in the init and testMethod. if So why? Can some one explain these things to me.

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  • App closes after facebook login in IOS 5

    - by Aromal Sasidharan
    I am using facebook sdk 3.1 framework for my application. The login process works successfully and returns to the app after facebook login both in simulator(iOS 6.0 and 5.0) and in iPad(iOS 6). But When the same is deployed in IPad with IOS 5, after login, it does not return back to my application and shows a blank white Screen or sometimes my application closes. I dont know what went wrong in iOS 5 and facebook sdk 3.1 framework, also i am not getting any logs to debug... Please help Iam using this code for login NSArray *permissions = [[NSArray alloc] initWithObjects: //@"user_likes", //@"read_stream", @"publish_stream", @"user_events", @"read_friendlists", @"user_birthday", @"email", nil]; [FBSession openActiveSessionWithPermissions:permissions allowLoginUI:YES completionHandler: ^(FBSession *session, FBSessionState state, NSError *error) { NSLog(@"state %d", state); [self sessionStateChanged:session state:state error:error]; }];

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  • Retrieving a unique result set with Core Data

    - by randombits
    I have a core data based app that manages a bunch of entities. I'm looking to be able to do the following. I have an entity "SomeEntity" with the attributes: name, type, rank, foo1, foo2. Now, SomeEntity has several rows if when we're speaking strictly in SQL terms. What I'm trying to accomplish is to retrieve only available types, even though each instance can have duplicate types. I also need them returned in order according to rank. So in SQL, what I'm looking for is the following: SELECT DISTINCT(type) ORDER BY rank ASC Here is the code I have so far that's breaking: NSError *error = NULL; NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init]; [fetchRequest setReturnsDistinctResults:YES]; [fetchRequest setPropertiesToFetch:[NSArray arrayWithObjects:@"type", @"rank", nil]]; NSEntityDescription *entity = [NSEntityDescription entityForName:@"SomeEntity" inManagedObjectContext:managedObjectContext]; [fetchRequest setEntity:entity]; // sort by rank NSSortDescriptor *rankDescriptor = [[NSSortDescriptor alloc] initWithKey:@"rank" ascending:YES]; NSArray *sortDescriptors = [[NSArray alloc] initWithObjects:rankDescriptor,nil]; [fetchRequest setSortDescriptors:sortDescriptors]; [sortDescriptors release]; [rankDescriptor release]; NSArray *fetchResults = [managedObjectContext executeFetchRequest:fetchRequest error:&error]; [fetchRequest release]; return fetchResults; Right now that is crashing with the following: Invalid keypath section passed to setPropertiesToFetch:

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  • How to save state of the app when app terminates?

    - by user164589
    Hi guys. I am trying to save the app state by encoding when the app terminates. I've found the solution related this issue. But I don't know how to use. I am really trying to make encoding and decoding like this: http://cocoaheads.byu.edu/wiki/nscoding in CustomObject.h @interface CustomObject : NSObject <NSCoding> { NSArray *someArray; } in CustomObject.m @implementation CustomObject // Other method implementations here - (void) encodeWithCoder:(NSCoder*)encoder { [encoder encodeObject:someArray forKey:@"someArray"]; } - (id) initWithCoder:(NSCoder*)decoder { if (self = [super init]) { someArray = [[decoder decodeObjectForKey:@"someArray"] retain]; } return self; } @end My object to save is another NSArray. Not "someArray" in CustomObject. We call it that "MySaveObject". I want to pass "MySaveObject" to "someArray" in CustomObject. Actually I don't know how to encode "MySaveObject" and to pass to "someArray" in CustomObject. Thanks in advance.

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  • UIImagePNGRepresentation issues?

    - by disorderdev
    I want to load images from UIImagePickerController, then save the selected photo to my app's document directory. UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage]; NSData *data1 = UIImagePNGRepresentation(image); NSString *fileName = "1.png"; NSString *path = //get Document path, then add fileName BOOL succ = [data1 writeToFile:path atomically:YES]; but after I save the image to my document, I found that, the image was rotated 90 degree, then I change the method UIImagePNGRepresentation to UIImageJPEGRepresentation, this time it's fine, anyone know what's the problem?

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  • Will it use more and more memory if I keep drawing on the UIView?

    - by Tattat
    This is my drawRect: CGContextRef context = UIGraphicsGetCurrentContext(); CGContextSetLineWidth(context, 2.0); CGContextSetStrokeColorWithColor(context, [UIColor redColor].CGColor); CGContextMoveToPoint(context, x1, y1); CGContextAddLineToPoint(context, x2, y2); CGContextStrokePath(context); If I run this code thousand times or more. My UIView will have many lines on that. Will it use more memory than only just one line on it? Er... ...I mean, will the program remember the line I draw or after it draw the lines, it won't have any information in the memory. thz .

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  • Duplicate Method Names - Objective-c

    - by evanchri
    Why does this compile with out any errors or warnings? @interface ObjectTest : NSObject { } -(void)iAmADoubleMethod; -(void)iAmADoubleMethod; @end @implementation ObjectTest -(void)iAmADoubleMethod { NSLog(@"IAmADoubleMethod"); } @end I came across this in a project I am working on. I come from a C++ background, so I figure I would get at least a warning for this. Not only would I like to know why it complies but could this code cause any problems? Thanks.

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  • Interface Builder layout ViewController with its own nib

    - by Sean Clark Hess
    I would like to be able to decide where a sub view is placed, when that view is controlled by its own view controller. This happens frequently on the iPad when you have a semi-complicated view that doesn't fill the entire screen. So, imagine that I want the sub view controller's nib to decide its own width, components, connections, etc, while the parent nib would decide where that view/nib would be placed. I'd really like to lay it out visually instead of programatically. How can I?

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  • Are @property's necessary for Interface Builder?

    - by Rits
    In my UIViewController subclass, I have 3 UIView's with each a @property as an IBOutlet. I do not use these properties at all in my code. The views get instantiated as soon as the view controller is created and they are deallocated when the view controller is deallocated. I was thinking; can't I just remove the @property's? I did, and I could still connect my instance variables (with IBOutlet) in Interface Builder. So my question now is; is there any use for properties in combination with Interface Builder, or is it OK to leave them out? Is it required for some memory management or something? Or are they really just for use in your own code? And if I do leave them out, do I still need to release them in dealloc?

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