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  • Non-deprecated replacement for NSCalibratedBlackColorSpace?

    - by uliwitness
    I'm implementing my own NSBitmapImageRep (to draw PBM image files). To draw them, I'm using NSDrawBitmap() and passing it the NSCalibratedBlackColorSpace (as the bits are 1 for black, 0 for white). Trouble is, I get the following warning: warning: 'NSCalibratedBlackColorSpace' is deprecated However, I couldn't find a good replacement for it. NSCalibratedWhiteColorSpace gives me an inverted image, and there seems to be no way to get NSDrawBitmap() to use a CGColorSpaceRef or NSColorSpace that I could create as a custom equivalent to NSCalibratedBlackColorSpace. I've found a (hacky) way to shut up the warning (so I can still build warning-free until a replacement becomes available) by just passing @"NSCalibratedBlackColorSpace" instead of the symbolic constant, but I'd rather apply a correct fix. Anybody have an idea?

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  • How to calculate a point with an given center, angle and radius?

    - by mystify
    In this SO question, someone asked for calculating an angle from three points. I need to do the opposite thing. I want to draw a clock, and I have tiny tick images. An art dude made 60 of them, each with an individual and accurate shadow. So there are 60 distinct images at 10x10 points in size, already correctly rotated in the center of that square. So every 6 degrees one tick image has to be placed. I would just need to calculate the x/y coordinate based on a center point, an radius and an angle. So I have: an center point an radius an angle Is there an easy way to calculate the x/y coordinate with this? Maybe cocoa-touch already has a useful function or method for this?

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  • Removing Objects From NSMutableArray

    - by Garry
    Hi, I have a NSMutableArray that contains all the calendars on my system (as CalCalendar objects): NSMutableArray *calendars = [[CalCalendarStore defaultCalendarStore] calendars]; I want to remove from calendars any CalCalendar objects whose title does not include the string @"work". I've tried this: for (CalCalendar *cal in calendars) { // Look to see if this calendar's title contains "work". If not - remove it if ([[cal title] rangeOfString:@"work"].location == NSNotFound) { [calendars removeObject:cal]; } } The console is complaining that: *** Collection <NSCFArray: 0x11660ccb0> was mutated while being enumerated. And things go bad. Obviously it would seem you can't do what I want to do this way so can anyone suggest the best way to go about it? Thanks,

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  • "'Objects' may not respond to 'functions'" warnings.

    - by Andrew
    Hello all, for the last couple of weeks I've finally gotten into Obj-C from regular C and have started my first app. I've watched tutorials and read through a book along with a lot of webpages, but I know I've only just begun. Anyway, for most of the night and this morning, I've been trying to get this code to work, and now that it will compile, I have a few warnings. I've searched and found similar problems with solutions, but still no dice. What I'm trying to do is put an array made from a txt document into the popup list in a combo box. AwesomeBoxList.h: #import <Cocoa/Cocoa.h> @interface AwesomeBoxList : NSObject { IBOutlet NSComboBox *ComboBoz; } -(NSArray *) getStringzFromTxtz; - (void) awesomeBoxList; @end AwesomeBoxList.m: #import "AwesomeBoxList.h" @implementation AwesomeBoxList -(NSArray *)getStringzFromTxtz { ... return combind; } - (void) awesomeBoxList { [ComboBoz setUsesDataSource:YES]; [ComboBoz setDataSource: [ComboBoz getStringzFromTxtz]: //'NSComboBox' may not respond to 'getStringzFromTxtz' [ComboBoz comboBox:(NSComboBox *)ComboBoz objectValueForItemAtIndex: [ComboBoz numberOfItemsInComboBox:(NSComboBox *)ComboBoz]]]; /*'NSComboBox' may not respond to '-numberOfItemsInComboBox:' 'NSComboBox' may not respond to '-comboBox:objectValueForItemAtIndex:' 'NSComboBox' may not respond to '-setDataSource:' */ } @end So, with all of these errors and my still shallow knowledge of Obj-C, I must be making some sort of n00b mistake. Thanks for the help.

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  • Xcode 4: nib files not loading when run, can't find UI elements

    - by Jordan
    So, I just downloaded Xcode 4 and installed it. I was actually quite looking forward to the single window and integrated IB... - However, when I open and run one of my projects, the nib files that the project uses don't seem to load. Instead I'm left looking at a blank white screen (iPhone). This project ran well and fine on Xcode 3.2. So I thought... this can't be that hard to fix. So I opened up a nib file, thinking that maybe editing or creating a new one from scratch could point me in the right direction. But I can't find the old resources panel from interface builder anywhere. How am I meant to create a new view or add buttons? I know I'm probably just missing something obvious :s Did anyone else have the same nib file problems - is there a fix (or something stupidly simple that I'm forgetting about)? - EDIT: Ok. If I background and un-background the app, the view loads fine. But this happens every time I build, on both iPhone and iOS simulator, i.e. the app doesn't work properly until it's been backgrounded. All the code for loading the view follows from - (void)applicationDidFinishLaunching:(UIApplication *)application. Now I am really confused. - Thanks :)

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  • Custom URL for the Birdhouse app

    - by bryanjclark
    I'd like to figure out the custom URL scheme for the Birdhouse iPhone app, but there doesn't seem to be any documentation. Birdhouse is an app to store drafts for Twitter. I'd like to send it a string of text, and I know that it's possible: Birdhouse responds to the URL birdhouse:/// The Twitter app sends drafts to Birdhouse if it's installed on your phone. I've figured out the birdhouse:/// part, but how do I send the text?

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  • Calling popToRootViewControllerAnimated causing crash. How should I be doing this?

    - by Lewis42
    The app is for taking body measurements. The user can say I want to measure: legs, arms and neck, in the settings tab and in the main tab there is a view which loops round to take each measurement. This is achieved like so: i have tab controller the first tab has a navigation controller the first view controller on the storyboard and has one segue to itself the board loops round until it has all the measurements then it segues to a different controller the problem is: if the user changes which measurements they are taking in the settings tab, the first tab needs to completely reload, as if the app was just starting up, clearing down the whole nav stack etc. at the moment the tab controller calls popToRootViewControllerAnimated on the navigation controller in the measurements tab, but this is causing a crash. Each screen has a slider control and a call to titleForRow:forComponent: is being called on a deleted view causing it to crash. What am I doing wrong?! Here's the tab bar controller code // TabBarController.m // #import "TabBarController.h" #import "TodaysMeasurementObject.h" #import "AppDelegateProtocol.h" #import "AddMeasurementViewController.h" #import "ReadPerson.h" #import "AppDelegate.h" @interface TabBarController () <UITabBarControllerDelegate> @end @implementation TabBarController bool resetWizardView = false; - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { } return self; } - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view. self.delegate = self; [[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(orientationChanged:) name:UIDeviceOrientationDidChangeNotification object:nil]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(measurementsSettingsUpdated:) name:@"MeasurementsSettingsUpdated" object:nil]; } - (void) measurementsSettingsUpdated:(NSNotification *) notification { // UINavigationController *navigationController = [self.viewControllers objectAtIndex:0]; // AddMeasurementViewController *addMeasurement = [[AddMeasurementViewController alloc] init]; // [navigationController setViewControllers: [[NSArray alloc] initWithObjects:addMeasurement, nil]]; resetWizardView = YES; } - (void) viewDidAppear:(BOOL)animated { if (![ReadPerson userHasRecords]) { [self setSelectedIndex:3]; } } - (void)orientationChanged:(NSNotification *)notification { // We must add a delay here, otherwise we'll swap in the new view // too quickly and we'll get an animation glitch [self performSelector:@selector(showGraphs) withObject:nil afterDelay:0]; } - (void)showGraphs { UIDeviceOrientation deviceOrientation = [UIDevice currentDevice].orientation; if (deviceOrientation == UIDeviceOrientationLandscapeLeft && !isShowingLandscapeView) { [self performSegueWithIdentifier: @"toGraph" sender: self]; isShowingLandscapeView = YES; } else if (deviceOrientation != UIDeviceOrientationLandscapeLeft && isShowingLandscapeView) { [self dismissModalViewControllerAnimated:YES]; isShowingLandscapeView = NO; } } - (void)viewDidUnload { [super viewDidUnload]; // Release any retained subviews of the main view. } - (void)dealloc { [[NSNotificationCenter defaultCenter] removeObserver:self]; [[UIDevice currentDevice] endGeneratingDeviceOrientationNotifications]; } - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { if(interfaceOrientation == UIInterfaceOrientationLandscapeRight) { [self performSegueWithIdentifier: @"toGraph" sender: self]; } return false; } - (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController { int tbi = tabBarController.selectedIndex; if (tbi == 0) { [[viewController view] setNeedsDisplay]; if (resetWizardView) { [(UINavigationController*)[self.viewControllers objectAtIndex:0] popToRootViewControllerAnimated: NO]; // ******* POP CALLED HERE ****** resetWizardView = false; } } } - (TodaysMeasurementObject*) theAppDataObject { id<AppDelegateProtocol> theDelegate = (id<AppDelegateProtocol>) [UIApplication sharedApplication].delegate; TodaysMeasurementObject* theDataObject; theDataObject = (TodaysMeasurementObject*) theDelegate.theAppDataObject; return theDataObject; } - (BOOL)shouldAutorotate { return NO; } - (NSUInteger)supportedInterfaceOrientations { return UIInterfaceOrientationMaskPortrait; } @end UPDATED - (void) measurementsSettingsUpdated:(NSNotification *) notification { NSMutableArray *viewControllers = [[NSMutableArray alloc] initWithArray: self.viewControllers]; UINavigationController *navigationController = [viewControllers objectAtIndex:0]; AddMeasurementViewController *addMeasurement = [[AddMeasurementViewController alloc] init]; [navigationController setViewControllers: [[NSArray alloc] initWithObjects:addMeasurement, nil]]; [viewControllers setObject:navigationController atIndexedSubscript:0]; self.viewControllers = viewControllers; } and removed the code from - tabBarController:didSelectViewController: but still the same error. I think the problem is that it's trying to get a value for the slide control after the view has been deleted. But some part of the view must still be alive...? Anyway to kill that off? Or leave it all alive??

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  • iphone float vs integer rounding?

    - by Rob
    Okay, from what I understand, an integer that is a fraction will be rounded one way or the other so that if a formula comes up with say 5/6 - it will automatically round it to 1. I have a calculation: xyz = ((1300 - [abc intValue])/6) + 100; xyz is defined as an NSInteger, abc is an NSString that is chosen via a UIPicker. I want the calculation (1300 - [abc intValue]) to add 1 to 100 for each 6 units below 1300. For example, 1255 should result in xyz having a value of 100 and 1254 should result in a value of 101. Now, I understand that my formula above is wrong because of the rounding principles, but I am getting some CRAZY results from the program itself. When I punched in 1259 - I got 106. When I punched in 1255 - I got 107. Why would it behave that way?

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  • release viewcontroller after presenting modally

    - by Jonathan
    I was watching CS193P Stanford course on Itunes, and in one of the lectures a demo was given and There it was said you could present the viewcontroller modally and then release it. Roughly like this (I know this isn't perfect but I'm on my PC atm) [self.view presentcontentmodally:myVC] [myVC release]; However this seems to produce problems. If I put a NSLog(@"%d", [myVC retainCount]) between those two lines then it returns 2 implying it is ok to release. However when I dismiss the myVC the app crashes. Nothing in the NSlog and the debugger won't show where it stopped. But I used malloc-history or something that some blog said would help. And found that it was the myVC. So should I be releasing myVC? (also when the modalVC has been dissmissed should the app's memory usuage go back to before the modalVC was presented?)

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  • Why are controls (null) in awakeFromNib?

    - by fuzzygoat
    This is a follow on from another question regarding why I could not set UIControls in awakeFromNib. The answer to that is that as you can see below the controls are nil in the awakeFromNib, although they are initialised to the correct objects by the time we get to viewDidLoad. I setup the view the same as I always do, should I be doing something different to access them here, the xib(nib) was designed and saved with the current version of Image Builder. CODE: @interface iPhone_TEST_AwakeFromNibViewController : UIViewController { UILabel *myLabel; UIImageView *myView; } @property(nonatomic, retain)IBOutlet UILabel *myLabel; @property(nonatomic, retain)IBOutlet UIImageView *myView; @end . @synthesize myLabel; @synthesize myView; -(void)awakeFromNib { NSLog(@"awakeFromNib ..."); NSLog(@"myLabel: %@", [myLabel class]); NSLog(@"myView : %@", [myView class]); //[myLabel setText:@"AWAKE"]; [super awakeFromNib]; } -(void)viewDidLoad { NSLog(@"viewDidLoad ..."); NSLog(@"myLabel: %@", [myLabel class]); NSLog(@"myView : %@", [myView class]); //[myLabel setText:@"VIEW"]; [super viewDidLoad]; } OUTPUT: awakeFromNib ... myLabel: (null) myView : (null) viewDidLoad ... myLabel: UILabel myLabel: UIImageView Much appreciated ... gary

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  • Object pointer value as key into dictionary

    - by Ranking Stackingblocks
    I want to use the object's reference value as a key into a dictionary, as opposed to a copy of value of the object. So, I essentially want to store an object associated with a particular instance of another object in a dictionary and retrieve that value later. Is this possible? Is it completely against the idea of NSDictionary? I can tell that I am probably approaching this the wrong way because the dictionary wants me to implement NSCopying on the object itself, which doesn't really make sense in terms of what I'm doing. I can see that what I should really be doing is wrapping the pointer value, but that seems a little mad. Advice would be appreciated.

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  • "Single NSMutableArray" vs. "Multiple C-arrays" --Which is more Efficient/Practical?

    - by RexOnRoids
    Situation: I have a DAY structure. The DAY structure has three variables or attributes: a Date (NSString*), a Temperature (float), and a Rainfall (float). Problem: I will be iterating through an array of about 5000 DAY structures and graphing a portion of these onto the screen using OpenGL. Question: As far as drawing performance, which is better? I could simply create an NSMutableArray of DAY structures (NSObjects) and iterate on the array on each draw call -- which I think would be hard on the CPU. Or, I could instead manually manage three different C-Arrays -- One for the Date String (2-Dimensional), One for the temperature (1-Dimensional) and One for the Rainfall (1-Dimensional). I could keep track of the current Day by referencing the current index of the iterated C-Arrays.

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  • How can I link in both remote and local assets into a webview?

    - by Greg
    I'm loading HTML-formatted content into my app from a web service, then plugging that into a local HTML template that lives within the app. Now, I need to set the UIWebView's BaseURL to point at the remote server so that all relative image links will load. However, I'm also trying to link in some local assets (CSS, JavaScript). Thus far, I have not found any documentation on how to link in local assets without relying on the UIWebView's baseURL. I've tried injecting the absolute file path of my CSS and JS into my HTML template, but it hasn't worked... I don't know if that means that it doesn't work, or if I'm just doing it wrong. Has anyone ever run into this scenario, and if so, how did you address it? Thanks in advance, I really appreciate any tips!

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  • Replace an Array with an Array

    - by Dane Man
    I have and NSMutableArray and I want to replace it with another, but if I try to do it like this... firstArray = secondArray; ...then it seems to erase the entire firstArray and I get this error message.. Terminating app due to uncaught exception 'NSRangeException', reason: '*** -[NSCFArray objectAtIndex:]: index (0) beyond bounds (0)' ...and the bounds should be (6) not (0). Is there a correct way to replace the array? PS: I already checked the secondArray and it functions fine.

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  • UISearchbar issue

    - by hmthur
    I am trying to add a UISearchbar to table header view. I have the icon in nib and have connected the outlets. Now in viewDidLoad, I am writing self.tableView.tableHeaderView = searchbar If i create a local var inside viewDidLoad, it shows up. But not the outlet or ivar one. But for some reason, the UISearchbar does not get displayed in the table. I am not sure what the issue is. Can a UISearchbar not be set in viewDidLoad OR is it something else? Please help.

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  • Should we point to an NSManagedObject entity with weak instead of strong pointer?

    - by Jim Thio
    I think because NSManagedObject is managed by the managedObject context the pointer should be weak. Yet it often goes back to 0 in my cases. for (CategoryNearby * CN in sorted) { //[arrayOfItems addObject:[NSString stringWithFormat:@"%@ - %d",CN.name,[CN.order intValue]]]; NearbyShortcutTVC * tvc=[[NearbyShortcutTVC alloc]init]; tvc.categoryNearby =CN; // tvc.titleString=[NSString stringWithFormat:@"%@",CN.name]; // tvc.displayed=CN.displayed; [arrayOfItemsLocal addObject:tvc]; //CN PO(tvc); PO(tvc.categoryNearby); while (false); } self.arrayOfItems = arrayOfItemsLocal; PO(self.categoriesNearbyInArrayOfItems); [self.tableViewa reloadData]; ... Yet somewhere down the line: tvc.categoryNearby becomes nil. I do not know how or when or where it become nil. How do I debug this? Or should the reference be strong instead? This is the interface of NearbyShortcutTVC by the way @interface NearbyShortcutTVC : BGBaseTableViewCell{ } @property (weak, nonatomic) CategoryNearby * categoryNearby; @end To make sure that we're talking about the same object I print all the memory addresses of the NSArray They're both the exact same object. But somehow the categoryNearby property of the object is magically set to null somewhere. self.categoriesNearbyInArrayOfItems: ( 0x883bfe0, 0x8b6d420, 0x8b6f9f0, 0x8b71de0, 0xb073f90, 0xb061a10, 0xb06a880, 0x8b74940, 0x8b77110, 0x8b794e0, 0x8b7bf40, 0x8b7cef0, 0x8b7f4b0, 0x8b81a30, 0x88622d0, 0x8864e60, 0xb05c9a0 ) self.categoriesNearbyInArrayOfItems: ( 0x883bfe0, 0x8b6d420, 0x8b6f9f0, 0x8b71de0, 0xb073f90, 0xb061a10, 0xb06a880, 0x8b74940, 0x8b77110, 0x8b794e0, 0x8b7bf40, 0x8b7cef0, 0x8b7f4b0, 0x8b81a30, 0x88622d0, 0x8864e60, 0xb05c9a0 )

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  • RestKit loadObjects

    - by Peter Lapisu
    iam using restKit, to send and receive data from server... iam getting back { "request":"globalUpdate", "updateRevision":2, "updatedObjects":{ "users":[ { id:"someid1", name:"somename" }, { id:"someid2", name:"somename2", } ] } } i want to use [[RKObjectManager sharedManager] loadObjectsAtResourcePath:nil usingBlock:^(RKObjectLoader * loader){)]; to load only objects inside updatedObjects into CoreData and request, updateRevision into NSDictionary so in loader.onDidLoadObjects = ^(NSArray *objects) { } the first object is the Dictionary and the later one are CoreData

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  • want to go to next view from rightbarbutton item.

    - by uttam
    I am using this code to get the three button on the right side of the navigationbar ,button are visible but next to this I want to go to the next view from this three button image, text ,vedio. NSArray *segmentTextContent = [NSArray arrayWithObjects:@"Image",@"Text",@"Video",nil]; UISegmentedControl *segmentedControl = [[UISegmentedControl alloc] initWithItems:segmentTextContent]; segmentedControl.frame = CGRectMake(13, 20, 150, kCustomButtonHeight); segmentedControl.segmentedControlStyle = UISegmentedControlStyleBar; segmentedControl.momentary = YES; defaultTintColor = [segmentedControl.tintColor retain]; // keep track of this for later UIBarButtonItem *segmentBarItem = [[UIBarButtonItem alloc] initWithCustomView:segmentedControl]; self.navigationItem.rightBarButtonItem = segmentBarItem; if(segmentedControl.selectedSegmentIndex=0) { [segmentedControl addTarget:self action:@selector(segmentAction:) forControlEvents:UIControlEventValueChanged]; } else if(segmentedControl.selectedSegmentIndex==1) { [segmentedControl addTarget:self action:@selector(segmentAction1:) forControlEvents:UIControlEventValueChanged]; } else if(segmentedControl.selectedSegmentIndex==2) { [segmentedControl addTarget:self action:@selector(segmentAction2:) forControlEvents:UIControlEventValueChanged]; } [segmentBarItem release]; //[modalBarButtonItem release]; } return self; }

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  • Pattern for iPhone background loading during init?

    - by Rob S.
    Hi everyone, I'm currently kicking off a background thread to do some REST queries in my app delegate's didFinishLaunchingWithOptions. This thread creates some objects and populates the model as the rest of the app continues to load (because I don't block, and didFinishLaunchingWithOptions returns YES). I also put up a loading UIViewController 'on top' of the main view that I tear down after the background initialization is complete. My problem is that I need to notify the first view (call it the Home view) that the model is ready, and that it should populate itself. The trick is that the background download could have finished before Home.viewDidAppear is called, or any of the other Home.initX methods. I'm having difficulty synchronizing all of this and I've thought about it long enough that it feels like I'm barking up the wrong tree. Are there any patterns here for this sort of thing? I'm sure other apps start by performing lengthy operations with loading screens :) Thanks!

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  • UITableViewRowAnimationBottom doesn't work for last row

    - by GendoIkari
    I've come across a very similar question here: Inserting row to end of table with UITableViewRowAnimationBottom doesn't animate., though no answers have been given. His code was also a little different than mine. I have an extremely simple example, built from the Navigation application template. NSMutableArray *items; - (void)viewDidLoad { [super viewDidLoad]; items = [[NSMutableArray array] retain]; self.navigationItem.rightBarButtonItem = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(addItem)] autorelease]; } - (void)addItem{ [items insertObject:@"new" atIndex:0]; [self.tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:[NSIndexPath indexPathForRow:0 inSection:0]] withRowAnimation:UITableViewRowAnimationBottom]; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return items.count; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease]; } cell.textLabel.text = [items objectAtIndex:indexPath.row]; return cell; } - (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath { if (editingStyle == UITableViewCellEditingStyleDelete) { [items removeObjectAtIndex:indexPath.row]; [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationBottom]; } } The problem is, when I either insert or delete the very last row in the table, the animation doesn't work at all; the row just appears or disappears instantly. This only happens with UITableViewRowAnimationBottom, but that's the animation that makes the most sense for creating or deleting table cells in this way. Is this a bug in Apple's framework? Or does it do this on purpose? Would it make sense to add an extra cell to the count, and then setup this cell so that it looks like it's not there at all, just to get around this behavior?

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  • UITableViewController setting delegates and datasource

    - by the_great_monkey
    Hi iOS gurus, I'm a little bit confused about UITableViewController... As far as I concern they are typically the delegate and datasource of the UITableView (although it can be made such that they are different). However in some cases, like when embedding a UITableViewController in a UITabBarViewController in Interface Builder, we initiate our table view controller in IB. Therefore in my understanding, the default initialiser is being called. But in this case, I have this piece of code: @interface Settings : UITableViewController { } And in the IB I see that the delegate and datasource of the UITableView is hooked up to this class. My question is, why is it that we don't need to explicitly say that it is following: @interface Settings : UITableViewController <UITableViewDelegate, UITableViewDataSource> { } And in the .m file: - (void)viewDidLoad { [super viewDidLoad]; [tableView setDelegate:self]; [tableView setDataSource:self]; } I have indeed stumbled upon some cases where I have to explicitly code the above a few times to make something work. Although it is still a mystery for me as of why it is needed...

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