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• Facebook API friends_get is extremely slow

  - by IkimashoZ

  I have a PHP application running in iFrame mode. I am rendering an <fb:multi-friend-selector condensed="true"> inside of <fb:serverfbml> tags. This is inside a PHP file that calls a function that gets a list of user IDs using $facebook->api_client->friends_get();. The multi-friend selector renders just fine, but, when I leave the friend_get() call uncommented, the page takes between 15-20 seconds to load (confirmed with Firebug)! The goal is to limit the number of users displayed in the selector by building a list of user ids not to display, for use in the friend selector's exclude_ids parameter. And since it's "exclude_ids" and not "include_ids", I can't think of a way of getting around this api call. It seems to me there must be something I can do to make the api call faster, because I've seen friend selectors that load much more quickly.

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• To call SelectMany dynamically in the way of System.Linq.Dynamic

  - by user341127

  In System.Linq.Dynamic, there are a few methods to form Select, Where and other Linq statements dynamically. But there is no for SelectMany. The method for Select is as the following: public static IQueryable Select(this IQueryable source, string selector, params object[] values) { if (source == null) throw new ArgumentNullException("source"); if (selector == null) throw new ArgumentNullException("selector"); LambdaExpression lambda = DynamicExpression.ParseLambda(source.ElementType, null, selector, values); IQueryable result = source.Provider.CreateQuery( Expression.Call( typeof(Queryable), "Select", new Type[] { source.ElementType, lambda.Body.Type }, source.Expression, Expression.Quote(lambda))); return result; } I tried to modify the above code, after hours working, I couldn't find a way out. Any suggestions are welcome. Ying

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• jQuery: Checking for length of ul and removing an li element?

  - by Legend

  I am trying to remove the last <li> element from a <ul> element only if it exceeds a particular length. For this, I am doing something like this: var selector = "#ulelement" if($(selector).children().length > threshold) { $(selector + " >:last").remove(); } I don't like the fact that I have to use the selector twice. Is there a shorter way to do this? Something like a "remove-if-length-greater-than-threshold" idea. I was thinking that maybe there is a way to do this using the live() function but I have no idea how.

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• NSThread vs. NSOperationQueue vs. ??? on the iPhone

  - by kubi

  Currently I'm using NSThread to cache images in another thread. [NSThread detachNewThreadSelector:@selector(cacheImage:) toTarget:self withObject:image]; Alternatively: [self performSelectorInBackground:@selector(cacheImage:) withObject:image]; Alternatively, I can use an NSOperationQueue NSInvocationOperation *invOperation = [[NSInvocationOperation alloc] initWithTarget:self selector:@selector(cacheImage:) object:image]; NSOperationQueue *opQueue = [[NSOperationQueue alloc] init]; [opQueue addOperation:invOperation]; Is there any reason to switch away from NSThread? GCD is a 4th option when it's released for the iPhone, but unless there's a significant performance gain, I'd rather stick with methods that work in most platforms.

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• can you explain this jquery method from jquery.js

  - by mrblah

  Trying to understand how jquery works under the covers, what's the difference between: jQuery.fn and jQuery.prototype jQuery = window.jQuery = window.$ = function( selector, context ) { // The jQuery object is actually just the init constructor 'enhanced' return new jQuery.fn.init( selector, context ); }, and then: jQuery.fn = jQuery.prototype = { init: function( selector, context ) {

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• JavaScript: How to get text from all descendents of an element, disregarding scripts?

  - by Bungle

  My current project involves gathering text content from an element and all of its descendents, based on a provided selector. For example, when supplied the selector #content and run against this HTML: <div id="content"> <p>This is some text.</p> <script type="text/javascript"> var test = true; </script> <p>This is some more text.</p> </div> my script would return (after a little whitespace cleanup): This is some text. var test = true; This is some more text. However, I need to disregard text nodes that occur within <script> elements. This is an excerpt of my current code: // get text content of all matching elements for (x = 0; x < selectors.length; x++) { matches = Sizzle(selectors[x], document); for (y = 0; y < matches.length; y++) { match = matches[y]; if (match.innerText) { // IE content += match.innerText + ' '; } else if (match.textContent) { // other browsers content += match.textContent + ' '; } } } It's a bit overly simplistic in that it just returns all text nodes within the element (and its descendants) that matches the provided selector. The solution I'm looking for would return all text nodes except for those that fall within script elements. It doesn't need to be especially high-performance, but I do need it to ultimately be cross-browser compatible. I'm assuming that I'll need to somehow loop through all children of the element that matches the selector and accumulate all text nodes other than ones within <script> elements; it doesn't look like there's any way to identify JavaScript once it's already rolled into the string accumulated from all of the text nodes. I can't use jQuery (for performance/bandwidth reasons), although you may have noticed that I do use its Sizzle selector engine, so jQuery's selector logic is available. Thanks in advance for any help!

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• C# WPF Slider Issue with IsMoveToPointEnabled

  - by Kirk

  I have IsMoveToPointEnabled on for my Slider, so when I click anywhere on the component the selector moves to my mouse. The problem is if I have this option on and click and hold the mouse down to drag the selector the selector doesn't move. Anyone know how to fix this?

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• How can I launch QuickTime from my app?

  - by Sheehan Alam

  I am trying to load a video from the web, but am having trouble getting it to appear in QuickTime. I can only hear the audio. I would like it to launch QuickTime. - (void)loadView { NSURL *movieURL = [NSURL URLWithString:@"http://movies.apple.com/media/us/mac/getamac/2009/apple-mvp-biohazard_suit-us-20090419_480x272.mov"]; if (movieURL != nil) { moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:movieURL]; moviePlayer.initialPlaybackTime = -1.0; // Register to receive a notification when the movie has finished playing. [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(moviePlayBackDidFinish:) name:MPMoviePlayerScalingModeDidChangeNotification object:moviePlayer]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(endPlay:) name:MPMoviePlayerPlaybackDidFinishNotification object:moviePlayer]; moviePlayer.scalingMode = MPMovieScalingModeAspectFit; moviePlayer.movieControlMode = MPMovieControlModeDefault; moviePlayer.backgroundColor = [UIColor blackColor]; [moviePlayer play]; } }

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• PLCameraController is not adding in viewcontroller

  - by sujyanarayan

  Hi, I've declared PLCameraContoller instance in my AppDelegate class as:- self.cameraController = [PLCameraController performSelector:@selector(sharedInstance)];[cameraController setDelegate:self]; And I'm accessing it in one of my viewcontroller class as:- del = [[UIApplication sharedApplication] delegate]; UIView previewView = [del.cameraController performSelector:@selector(previewView)]; previewView.frame = CGRectMake(0,0, 320, 480); self.view = previewView; [del.cameraController performSelector:@selector(startPreview)]; [del.cameraController performSelector:@selector(setCameraMode:) withObject:(NSNumber)1]; Where "del" is an instance of my AppDelegate class. But i can see only black background in my viewcontroller view in iphone device. Also if i remove "self" from the appdelegate.m code of cameracontroller it also showing blank. How can i get camera in my view controller? I'm pretty much struggling with it. Thanks in Adv.

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• jQuery bind efficiency

  - by chelfers

  I'm having issue with load speed using multiple jQuery binds on a couple thousands elements and inputs, is there a more efficient way of doing this? The site has the ability to switch between product lists via ajax calls, the page cannot refresh. Some lists have 10 items, some 100, some over 2000. The issue of speed arises when I start flipping between the lists; each time the 2000+ item list is loaded the system drags for about 10 seconds. Before I rebuild the list I am setting the target element's html to '', and unbinding the two bindings below. I'm sure it has something to do with all the parent, next, and child calls I am doing in the callbacks. Any help is much appreciated. loop 2500 times <ul> <li><input type="text" class="product-code" /></li> <li>PROD-CODE</li> ... <li>PRICE</li> </ul> end loop $('li.product-code').bind( 'click', function(event){ selector = '#p-'+ $(this).prev('li').children('input').attr('lm'); $(selector).val( ( $(selector).val() == '' ? 1 : ( parseFloat( $(selector).val() ) + 1 ) ) ); Remote.Cart.lastProduct = selector; Remote.Cart.Products.Push( Remote.Cart.customerKey, { code : $(this).prev('li').children('input').attr('code'), title : $(this).next('li').html(), quantity : $('#p-'+ $(this).prev('li').children('input').attr('lm') ).val(), price : $(this).prev('li').children('input').attr('price'), weight : $(this).prev('li').children('input').attr('weight'), taxable : $(this).prev('li').children('input').attr('taxable'), productId : $(this).prev('li').children('input').attr('productId'), links : $(this).prev('li').children('input').attr('productLinks') }, '#p-'+ $(this).prev('li').children('input').attr('lm'), false, ( parseFloat($(selector).val()) - 1 ) ); return false; }); $('input.product-qty').bind( 'keyup', function(){ Remote.Cart.lastProduct = '#p-'+ $(this).attr('lm'); Remote.Cart.Products.Push( Remote.Cart.customerKey, { code : $(this).attr('code') , title : $(this).parent().next('li').next('li').html(), quantity : $(this).val(), price : $(this).attr('price'), weight : $(this).attr('weight'), taxable : $(this).attr('taxable'), productId : $(this).attr('productId'), links : $(this).attr('productLinks') }, '#p-'+ $(this).attr('lm'), false, previousValue ); });

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• Androd ListView style

  - by xger86x

  Hi, i have a question about list views. I hope anyone knows the solution because i have been trying to solve this problem all the weekend. Well, i have a custom list view in which every row have a custom .xml (item_row.xml) with a set color background for the row item. <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="70dip" android:orientation="vertical" android:background="@drawable/list_bg"> The problem is when i try to make a selector for the list. I want two things: When the item is focused, appears the typical orange rectangle over him. When the item is pressed the same. I have proved with a selector and a custom style but all i get is or the selector doesn't appear or the selector covering the item so i can't see it. If anyone can give me the right code i will be very grateful. Thanks

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• jQuery detect visible but hidden elements

  - by IP

  This seems like it should be fairly easy - but I can't find the right selector for it According to the docs (http://api.jquery.com/hidden-selector/ and http://api.jquery.com/visible-selector/)... Elements can be considered hidden for several reasons: An ancestor element is hidden, so the element is not shown on the page. What I want to detect is "this element is visible, but is contained in a hidden parent". Ie, if I made the parent visible, this element would also be visible.

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• How to position a UIToolbar at the top of the screen?

  - by Mr_Nizzle

  I've figured out how to hide the navigation bar and then show the toolbar it has built-in but the toolbar appears at the bottom os the screen how can i position the toolbar on the top of the scren? here's some of my code UIBarButtonItem *yesterday = [[UIBarButtonItem alloc]initWithTitle:@"Yesterday" style:UIBarButtonItemStyleBordered target:self action:@selector(yesterday:)]; UIBarButtonItem *today = [[UIBarButtonItem alloc]initWithTitle:@"Today" style:UIBarButtonItemStyleDone target:self action:@selector(today:)]; UIBarButtonItem *tomorrow = [[UIBarButtonItem alloc]initWithTitle:@"Tomorrow" style:UIBarButtonItemStyleBordered target:self action:@selector(tomorrow:)]; UIBarButtonItem *month = [[UIBarButtonItem alloc]initWithTitle:@"Month" style:UIBarButtonItemStyleBordered target:self action:@selector(month:)]; NSArray *items = [NSArray arrayWithObjects:yesterday,today,tomorrow,month, nil]; [yesterday release]; [today release]; [tomorrow release]; [month release]; [self setToolbarItems:items]; [[self navigationController] setNavigationBarHidden:YES animated:NO]; [[self navigationController] setToolbarHidden:NO animated:YES]; Thanks.

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• iPhone check for a constant at runtime in universal app

  - by joshue

  I'm making a universal iPad/iPhone app which can use the iPad's VGA out connector to mirror the content of the app on an external screen. However, the iPhone does not have this functionality. given the following code, [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(screenInfoNotificationReceieved:) name:UIScreenDidConnectNotification object:nil]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(screenInfoNotificationReceieved:) name:UIScreenDidDisconnectNotification object:nil]; I get this error on the phone at launch (works fine in ipad) "dyld: Symbol not found: _UIScreenDidConnectNotification" presumably because UIScreenDidConnectNotification doesnt' exist yet in 3.13. How do I check for this at runtime?

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• How to use UISwipeGestureRecognizer on UIButton?

  - by Ashutosh

  I have a UIbutton which i want to work as a joystick. So i am trying to add some gesture recognizer on the same button. I have this in my code right now: UISwipeGestureRecognizer *recognizer; recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeFrom:)]; [recognizer setDirection:(UISwipeGestureRecognizerDirectionUp)]; [self.gestureRecieverButton addGestureRecognizer:recognizer]; [recognizer release]; recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipeFrom:)]; [recognizer setDirection:(UISwipeGestureRecognizerDirectionDown)]; [self.gestureRecieverButton addGestureRecognizer:recognizer]; [recognizer release]; -(void)handleSwipeFrom:(UISwipeGestureRecognizer *)recognizer { NSLog(@"Swipe received.%@",recognizer); } This is the error i am getting now: -[CUETutorialSixteenClusterRootController handleSwipeFrom:]: unrecognized selector sent to instance 0x79b71b0 2012-03-28 13:25:55.724 CUETrainer[1788:11f03] * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[CUETutorialSixteenClusterRootController handleSwipeFrom:]: unrecognized selector sent to instance 0x79b71b0' But its not actually doing anything. Please help!!!!

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• How can I consolidate deferred/delayed calls in Objective-C ?

  - by thrusty

  I'd like to ensure that certain maintenance tasks are executed "eventually". For example, after I detect that some resources might no longer be used in a cache, I might call: [self performSelector:@selector(cleanupCache) withObject:nil afterDelay:0.5]; However, there might be numerous places where I detect this, and I don't want to be calling cleanupCache continuously. I'd like to consolidate multiple calls to cleanupCache so that we only periodically get ONE call to cleanupCache. Here's what I've come up with do to this-- is this the best way? [NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(cleanupCache) object:nil]; [self performSelector:@selector(cleanupCache) withObject:nil afterDelay:0.5];

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• Javascript style objects in Objective-C

  - by awolf

  Background: I use a ton of NSDictionary objects in my iPhone and iPad code. I'm sick of the verbose way of getting/setting keys to these state dictionaries. So a little bit of an experiment: I just created a class I call Remap. Remap will take any arbitrary set[VariableName]:(NSObject *) obj selector and forward that message to a function that will insert obj into an internal NSMutableDictionary under the key [vairableName]. Remap will also take any (zero argument) arbitrary [variableName] selector and return the NSObject mapped in the NSMutableDictionary under the key [variableName]. e.g. Remap * remap = [[Remap alloc] init]; NSNumber * testNumber = [NSNumber numberWithInt:46]; [remap setTestNumber:testNumber]; testNumber = [remap testNumber]; [remap setTestString:@"test string"]; NSString * testString = [remap testString]; NSMutableDictionary * testDict = [NSMutableDictionary dictionaryWithObject:testNumber forKey:@"testNumber"]; [remap setTestDict:testDict]; testDict = [remap testDict]; where none of the properties testNumber, testString, or testDict are actually defined in Remap. The crazy thing? It works... My only question is how can I disable the "may not respond to " warnings for JUST accesses to Remap? P.S. : I'll probably end up scrapping this and going with macros since message forwarding is quite inefficient... but aside from that does anyone see other problems with Remap? Here's Remap's .m for those who are curious: #import "Remap.h" @interface Remap () @property (nonatomic, retain) NSMutableDictionary * _data; @end @implementation Remap @synthesize _data; - (void) dealloc { relnil(_data); [super dealloc]; } - (id) init { self = [super init]; if (self != nil) { NSMutableDictionary * dict = [[NSMutableDictionary alloc] init]; [self set_data:dict]; relnil(dict); } return self; } - (void)forwardInvocation:(NSInvocation *)anInvocation { NSString * selectorName = [NSString stringWithUTF8String: sel_getName([anInvocation selector])]; NSRange range = [selectorName rangeOfString:@"set"]; NSInteger numArguments = [[anInvocation methodSignature] numberOfArguments]; if (range.location == 0 && numArguments == 4) { //setter [anInvocation setSelector:@selector(setData:withKey:)]; [anInvocation setArgument:&selectorName atIndex:3]; [anInvocation invokeWithTarget:self]; } else if (numArguments == 3) { [anInvocation setSelector:@selector(getDataWithKey:)]; [anInvocation setArgument:&selectorName atIndex:2]; [anInvocation invokeWithTarget:self]; } } - (NSMethodSignature *) methodSignatureForSelector:(SEL) aSelector { NSString * selectorName = [NSString stringWithUTF8String: sel_getName(aSelector)]; NSMethodSignature * sig = [super methodSignatureForSelector:aSelector]; if (sig == nil) { NSRange range = [selectorName rangeOfString:@"set"]; if (range.location == 0) { sig = [self methodSignatureForSelector:@selector(setData:withKey:)]; } else { sig = [self methodSignatureForSelector:@selector(getDataWithKey:)]; } } return sig; } - (NSObject *) getDataWithKey: (NSString *) key { NSObject * returnValue = [[self _data] objectForKey:key]; return returnValue; } - (void) setData: (NSObject *) data withKey:(NSString *)key { if (key && [key length] >= 5 && data) { NSRange range; range.length = 1; range.location = 3; NSString * firstChar = [key substringWithRange:range]; firstChar = [firstChar lowercaseString]; range.length = [key length] - 5; // the 4 we have processed plus the training : range.location = 4; NSString * adjustedKey = [NSString stringWithFormat:@"%@%@", firstChar, [key substringWithRange:range]]; [[self _data] setObject:data forKey:adjustedKey]; } else { //assert? } } @end

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• Show transparent color filter on a View after clicking it

  - by Maarten

  So. You know how when you click a post in the Google+ app, the entire View becomes blue. I want to do that as well, but with an ImageView. I have the following code snippet, setting the actual image as the background and the selector as the main resource. This looks good, but doesn't respect scaleType for the background image: <ImageView android:id="@+id/painting_image" android:layout_width="match_parent" android:layout_height="200dp" android:background="@drawable/img" android:src="@drawable/selector" android:scaleType="centerCrop" /> By the way, @drawable/selector is just a selector that shows a tranparent color for state_pressed: <item android:state_pressed="true"> <shape xmlns:android="http://schemas.android.com/apk/res/android"> <solid android:color="#44521400" /> </shape></item> How can I make this work while respecting the scaleType?

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• Attach GestureRecogniser to multiple imageviews

  - by AppleDeveloper

  Something strange I encountered today while attaching same gesture recogniser to multiple image views. It gets attached to only the last one, in other words, it can be attached to only one view! I had to create multiple gesture recognisers to meet my requirements. Following is what I have done. Am I doing correct? Is that's the only way to attach recognisers to the multiple imageviews? Please note that I don't want to use UITableView or UIVIew and put all imageviews in it and attach gesture recogniser to only UITableView or UIVIew. I have all image scattered and I have to detect which image is being dragged. Thanks. [imgView1 setUserInteractionEnabled:YES]; [imgView1 setMultipleTouchEnabled:YES]; [imgView2 setUserInteractionEnabled:YES]; [imgView2 setMultipleTouchEnabled:YES]; [imgView3 setUserInteractionEnabled:YES]; [imgView3 setMultipleTouchEnabled:YES]; [imgView4 setUserInteractionEnabled:YES]; [imgView4 setMultipleTouchEnabled:YES]; [imgView5 setUserInteractionEnabled:YES]; [imgView5 setMultipleTouchEnabled:YES]; [imgView6 setUserInteractionEnabled:YES]; [imgView6 setMultipleTouchEnabled:YES]; //Attach gesture recognizer to each imagviews gestureRecognizer1 = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(gestureHandler:)]; gestureRecognizer1.delegate = self; gestureRecognizer2 = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(gestureHandler:)]; gestureRecognizer2.delegate = self; gestureRecognizer3 = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(gestureHandler:)]; gestureRecognizer3.delegate = self; gestureRecognizer4 = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(gestureHandler:)]; gestureRecognizer4.delegate = self; gestureRecognizer5 = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(gestureHandler:)]; gestureRecognizer5.delegate = self; gestureRecognizer6 = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(gestureHandler:)]; gestureRecognizer6.delegate = self; [imgView1 addGestureRecognizer:gestureRecognizer1]; [imgView2 addGestureRecognizer:gestureRecognizer2]; [imgView3 addGestureRecognizer:gestureRecognizer3]; [imgView4 addGestureRecognizer:gestureRecognizer4]; [imgView5 addGestureRecognizer:gestureRecognizer5]; [imgView6 addGestureRecognizer:gestureRecognizer6];

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• How to find out if a method exists in Obj-C when given an NSString

  - by Justin

  I have a method as an NSString *. If it exists, I want to call it, and if not, do nothing. SEL eventSelector = NSSelectorFromString(eventSelectorStr); if ([delegate respondsToSelector:eventSelector]) { [delegate performSelector:eventSelector]; [delegate adapterDidFinishAdRequest:self]; } else { // Does not implement selector } This code does not work, since NSSelectorFromString will register the string as a selector, so respondsToSelector:eventSelector will cause a crash because the selector is actually invalid.

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• Why need to call NSTimer again in this code?

  - by Tattat

  - (void) applicationDidFinishLaunching:(UIApplication *)application { //set up main loop [NSTimer scheduledTimerWithTimeInterval:0.033 target:self selector:@selector(gameLoop:) userInfo:nil repeats:NO]; //create instance of the first GameState [self doStateChange:[gsMain class]]; } - (void) gameLoop: (id) sender { [((GameState*)viewController.view) Update]; [((GameState*)viewController.view) Render]; [NSTimer scheduledTimerWithTimeInterval:0.033 target:self selector:@selector(gameLoop:) userInfo:nil repeats:NO]; } This code is from a iPhone game development book. I don't know why the gameLoop method need to call the NSTimer again? in the applicationDidFinishLaunching, it set the NSTimer to do, why don't let it do every 0.033s, why add the same NSTimer code in the gameLoop method? thz.

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• Checking for length of ul and removing an li element

  - by Legend

  I am trying to remove the last <li> element from a <ul> element only if it exceeds a particular length. For this, I am doing something like this: var selector = "#ulelement" if($(selector).children().length > threshold) { $(selector + " >:last").remove(); } I don't like the fact that I have to use the selector twice. Is there a shorter way to do this? Something like a "remove-if-length-greater-than-threshold" idea. I was thinking that maybe there is a way to do this using the live() function but I have no idea how.

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• Can we use (id) in if- else condition ?

  - by srikanth rongali

  I have written my code in following way in cocos2d. id actionTo = [CCFadeOut actionWithDuration:4.0f]; id actionTo0 = [CCSequence actionWithDuration:2.0f]; if (m < enemyNumber) id actionTo1 = [CCCallFunc actionWithTarget:self selector:@selector(goToNextScene)]; else id actionTo1 = [CCCallFunc actionWithTarget:self selector:@selector(goToEndScene)]; id actionSeq = [CCSequence actions:actionTo, actionTo0, actionTo1, nil]; [targetE runAction: [CCSequence actions:actionSeq, nil]]; error: expected expression before 'id' I am getting the above error. Should not we use (id) in if condition ? I want to get called two selectors by using the if- else condition. How can I make it ? Thank You.

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• jQuery size() method vs length attribute

  - by Ghommey

  Is there any difference between $(".selector").size() and $(".selector").length ?

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• Timer (NSTimer) won't work...why?

  - by eco_bach

  Hi I have the following, can anyone familiar with NSTimer tell me why it isn't working?? I've tried various values for an interval but no luck. self.timer = [NSTimer scheduledTimerWithTimeInterval:.5 target:self selector:@selector(update:) userInfo:nil repeats:YES]; And then my selector method - (void)update:(NSTimer*)timer { //DOESN"T TRACE OUT! NSLog(@" update:theTimer and userInfo = %@",timer.userInfo); }

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