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  • Generate vCard from AddressBook.framework

    - by Oliver
    I'm utilising the AddressBook.framework in my iPhone app, and I'd like to replicate something along the lines of the share feature in Contacts.app. This basically attach's a specific contacts vCard to an email. As far as I know, there is nothing in the documentation that mentions generating a vCard. Is this a case of generating one myself? Or is there something available that can help me?

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  • Resources check

    - by Chris
    hey I am frequently uploading my XCode iPhone projects to an svn repository to be build on another machine. My problem is that when I add resources to my project sometimes I forget to add the resource as relative to the project. I know one answer is to be more careful (not easy when your tired!) but if there was a way to run a script to check my resource paths are relative when I build and warn me if they are not it would be a great time saver for me. How would I go about doing this? Thanks Chris

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  • Subclassing UIButton but can't access my properties

    - by Ross Ellerington
    Hi, I've created a sub class of UIButton: // // DetailButton.h #import <Foundation/Foundation.h> #import <MapKit/MapKit.h> @interface MyDetailButton : UIButton { NSObject *annotation; } @property (nonatomic, retain) NSObject *annotation; @end // // DetailButton.m // #import "MyDetailButton.h" @implementation MyDetailButton @synthesize annotation; @end I figured that I can then create this object and set the annotation object by doing the following: MyDetailButton* rightButton = [MyDetailButton buttonWithType:UIButtonTypeDetailDisclosure]; rightButton.annotation = localAnnotation; localAnnotation is an NSObject but it is really an MKAnnotation. I can't see why this doesn't work but at runtime I get this error: 2010-05-27 10:37:29.214 DonorMapProto1[5241:207] *** -[UIButton annotation]: unrecognized selector sent to instance 0x445a190 2010-05-27 10:37:29.215 DonorMapProto1[5241:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[UIButton annotation]: unrecognized selector sent to instance 0x445a190' ' I can't see why it's even looking at UIButton because I've subclassed that so it should be looking at the MyDetailButton class to set that annotation property. Have I missed something really obvious. It feels like it :) Thanks in advance for any help you can provide Ross

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  • plist vs static array

    - by morticae
    Generally, I use static arrays and dictionaries for containing lookup tables in my classes. However, with the number of classes creeping quickly into the hundreds, I'm hesitant to continue using this pattern. Even if these static collections are initialized lazily, I've essentially got a bounded memory leak going on as someone uses my app. Most of these are arrays of strings so I can convert strings into NSInteger constants that can be used with switch statements, etc. I could just recreate the array/dictionary on every call, but many of these functions are used heavily and/or in tight loops. So I'm trying to come up with a pattern that is both performant and not persistent. If I store the information in a plist, does the iphoneOS do anything intelligent about caching those when loaded? Do you have another method that might be related?

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  • NSNumberFormatter to display custom labels for 10^n (10000 -> 10k)

    - by Michele Colombo
    I need to display numbers on a plot axis. The values could change but I want to avoid too long numbers that will ruin the readability of the graph. My thought was to group every 3 characters and substitute them with K, M and so on (or a custom character). So: 1 - 1, 999 - 999, 1.000 - 1k, 1.200 - 1.2k, 1.280 - 1.2k, 12.800 - 12.8k, 999.999 - 999.9k, 1.000.000 - 1M, ... Note that probably I'll only need to format round numbers (1, 10, 1000, 1500, 2000, 10000, 20000, 30000, 100000, ...). Is that possibile with NSNumberFormatter? I saw that it has a setFormat method but I don't know how much customizable it is. I'm using NSNumberFormatter cause the graph object I use wants it to set label format and I want to avoid changing my data to set the label.

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  • Releasing NSData causes exception...

    - by badmanj
    Hi, Can someone please explain why the following code causes my app to bomb? NSData *myImage = UIImagePNGRepresentation(imageView.image); : [myImage release]; If I comment out the 'release' line, the app runs... but a few times calling the function containing this code and I get a crash - I guess caused by a memory leak. Even if I comment EVERYTHING else in the function out and just leave those two lines, when the release executes, the app crashes. I'm sure this must be a newbie "you don't know how to clean up your mess properly" kind of thing ;-) Cheers, Jamie.

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  • how to send push JSON to urban airship server using api

    - by Viswa
    I am using urban airship for sending push notification, i finished all configuration in my app and i can send notification from urban airship website. Now i have to request urban airship api for sending push notification (using this " https://go.urbanairship.com/api/push/") URL and i have send json like this { "apids": [ "some APID", "another APID" ], "aliases": ["my_alias"], "tags": ["tag1", "tag2"], "android": { "alert": "Hello from Urban Airship!", "extra": {"a_key":"a_value"} } } i want to send push notification for single device, i think i have to do this using APID, isn't it?.

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  • Finding text's bounding rect in Core Text

    - by Mo
    I'm trying to find the boundaries of a line of text in Core Text. For simplicity, assume it has a single character. At the moment I'm using the following method: line = CTLineCreateWithAttributedString(attrString); rect = CTLineGetImageBounds(line, context); It works most of the times, but for some characters, like math italic d (Unicode: 0x1D451) or math italic q (Unicode: 0x1D45E), the width is a bit short. I tried using CTLineGetTypographicBounds() or CTFramesetterSuggestFrameSizeWithConstraints, but they didn't help either (I think they use glyph's advance to find the width, not its graphical width.) As the font itself isn't italic, I also can't use slant angle to correct this. I tried accessing the glyphs directly and using CTFontCreatePathForGlyph(), but failed as CGGlyph and UniChar are both 16-bits and I need 32-bit characters. Does anyone know if I'm doing anything wrong? If so, what's the right way?

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  • Refreshing a UITableView

    - by MihaiD
    I have a UITableView subclass and a UITableViewCell sublass that I'm using for cells. I'm bulding all my cells in advance and store them in an array from where I use them in cellForRowAtIndexPath. Aside from this I have a thread that loads some images in each cell, in the background. The problem is that the cells don't get refreshed as fast as the images are loaded. For example, if I don't scroll my table view, the first cells only get refreshed when all cells have been modified and the thread has exited. Any ideas on how I can effectively refresh my tableview/cell?

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  • How to hide the label (CCLabel) after a certain time in cocos2d ?

    - by srikanth rongali
    I added a label by using CCLabel to my layer. Now I want it do disappear after some time like (2sec). How can I make it to disappear? CCLabel *labelPerfectDraw = [CCLabel labelWithString:@"Perfect Draw" fontName:@"Marker Felt" fontSize:30 ]; labelPerfectDraw.color = ccc3(0x00, 0x00, 0xff); labelPerfectDraw.position = ccp(windowSize.width/2, windowSize.height/2+80); [self addChild:labelPerfectDraw]; I added label in above way. Please give me the idea how can I work on it?

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  • Invoke method in another class

    - by Sam
    I have two view controllers (viewControllerA and viewControllerB) with their own views. When the user touches a button in the view of viewControllerA, I am able to load the view of the viewControllerB. However, I don't know how to invoke a method in viewControllerB's class!

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  • Free iPhone weather API for the UK?

    - by user157733
    I am wanting to create a very simple weather app which only gives the current weather but in the UK. I have done a bit of searching but have yet to find a free API that I can use which works specifically for the UK. Does anyone have any experience of this or any suggestions?

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  • NSNumberFormatter customize?

    - by Frederick C. Lee
    I wish to use NSNumberFormatter to merely attached a percent ('%') to the supplied number WITHOUT having it multiplied by 100. The canned kCFNumberFormatterPercentStyle automatically x100 which I don't want. For example, converting 5.0 to 5.0% versus 500%. Using the following: NSNumberFormatter *percentFormatter = [[NSNumberFormatter alloc] init]; [percentFormatter setNumberFormat:@"##0.00%;-##0.00%"]; But 'setNumberFormat' doesn't exist in NSNumberFomatter. I need to use this NSNumberFormatter for my Core-Plot label. How can I customize NSNumberFormat? Ric.

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  • How can I render a custom view in a UIScrollView at varying zoom levels without distorting the view?

    - by eczarny
    The scenario: I have a custom view (a subclass of UIView) that draws a game board. To enable the ability to zoom into, and pan around, the board I added my view as a subview of UIScrollView. This kind of works, but the game board is being rendered incorrectly. Everything is kind of fuzzy, and nothing looks right. The question: How can I force my view to be redrawn correctly ay varying scales? I'm providing my view with the current scale and sending it a setNeedsDisplay message after the scroll view is done zooming in/out, but the game board is still being rendered incorrectly. My view should be redrawing the game board depending on the zoom level, but this isn't happening. Does the scroll view perform a generic transformation on subviews? Is there a way to disable this behavior?

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  • Problem streaming video on iPhone, only audio is playing

    - by Sheehan Alam
    I am trying to stream a video using MPMoviePlayerController but only audio is working. How can I get the video to appear? - (void)loadView { NSString *url = @"http://d1xt8xjto3lfs9.cloudfront.net/060810/afternoonupdate060810.mov"; MPMoviePlayerController *moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:[NSURL URLWithString:url]]; [moviePlayer play]; }

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  • Call method with parameters after animation completion

    - by Jean
    I want to call a method with certain parameters once an animation is done. The flow is something like this: -(void) myMethod:(int)val { [self performAnimation]; [self doSomethingElse:val]; // This should be done after animation completion } I presume the 'doSomethingElse' method needs to be called from the method defined in 'setAnimationDidStopSelector' - or is there a way to have the animation block until done? What is the best way to let the method called on 'setAnimationDidStopSelector' know about the method it needs to call and its parameter? Can this be done with selectors? Or is the only way of doing this by storing the methods and its params in class temp variables and access them when needed?

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  • How to extract the data from data.store to an array?

    - by Prateek Raj
    Hi everyone, i have the class var prstore = new Ext.data.Store({ url: 'xmlformat.xml', autoLoad: true, reader: new Ext.data.XmlReader({ record: 'price' }, [{name: 'Pri', mapping: '@rate'}]) }); the data which is stored in the "prstore",i want it to copy it into an array. something like var hello = []; hello = prstore.getrange(); but it's not working for me please help thank you

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  • Why doesn't Apple make private APIs inaccessible?

    - by Howiecamp
    If Apple doesn't want developers using private APIs in the iPhone SDK, why don't they do something like mark the classes and/or methods with whatever the Objective-C equivalent of C#'s "internal" keyword? If the APIs are spread amongst multiple binaries, Apple could refactor them into dedicated private-API-only binaries to make this easier for them.

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  • Countdown timer using NSTimer in "0:00" format

    - by Joey Pennacchio
    I have been researching for days on how to do this and nobody has an answer. I am creating an app with 5 timers on the same view. I need to create a timer that counts down from "15:00" (minutes and seconds), and, another that counts down from "2:58" (minutes and seconds). The 15 minute timer should not repeat, but it should stop all other timers when it reaches "00:00." The "2:58" timer should repeat until the "15:00" or "Game Clock" reaches 0. Right now, I have scrapped almost all of my code and I'm working on the "2:58" repeating timer, or "rocketTimer." Does anyone know how to do this? Here is my code: #import <UIKit/UIKit.h> @interface FirstViewController : UIViewController { //Rocket Timer int totalSeconds; bool timerActive; NSTimer *rocketTimer; IBOutlet UILabel *rocketCount; int newTotalSeconds; int totalRocketSeconds; int minutes; int seconds; } - (IBAction)Start; @end and my .m #import "FirstViewController.h" @implementation FirstViewController - (NSString *)timeFormatted:(int)newTotalSeconds { int seconds = totalSeconds % 60; int minutes = (totalSeconds / 60) % 60; return [NSString stringWithFormat:@"%i:%02d"], minutes, seconds; } -(IBAction)Start { newTotalSeconds = 178; //for 2:58 newTotalSeconds = newTotalSeconds-1; rocketCount.text = [self timeFormatted:newTotalSeconds]; if(timerActive == NO){ timerActive = YES; newTotalSeconds = 178; [rocketTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(timerLoop) userInfo:nil repeats:YES]; } else{ timerActive = NO; [rocketTimer invalidate]; rocketTimer = nil; } } -(void)timerLoop:(id)sender { totalSeconds = totalSeconds-1; rocketCount.text = [self timeFormatted:totalSeconds]; } - (void)dealloc { [super dealloc]; [rocketTimer release]; } - (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)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view from its nib. timerActive = NO; } - (void)viewDidUnload { [super viewDidUnload]; // Release any retained subviews of the main view. // e.g. self.myOutlet = nil; } - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { // Return YES for supported orientations return (interfaceOrientation == UIInterfaceOrientationPortrait); } @end

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