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• How Do I Save What I have Drawn In A CGContext

  - by sylvanaar

  I have drawn into a CGContext of a UIView. - (void)drawRect:(CGRect)rect { [self drawInContext:UIGraphicsGetCurrentContext()] } I would like to save what I have drawn to a png file. Is there a simple solution?

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• Avoid hardcoding iPhone screen size with programmatic view creation

  - by miorel

  Hi, I was looking up how to create a view programmatically and found the following example code: self.view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 480)]; This works great, except I don't like that it hardcodes the size of the screen. Is there a way to look up the size of the screen? An important point someone brought up is that if…

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• Core Data passing context between methods on secondary threads

  - by JK

  My app spawns a secondary thread for some core data store maintenance. In the secondary thread, I set up a context which I then pass to other methods e.g. [self editEntriesInContext:context]. However, this causes objects fetched from the context to become invalidated in editEntries... Why does this occur? I thought the only requirements were for…

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• Create a screen like the iPhone home screen with Scrollview and Buttons

  - by Anthony Chan

  Hi, I'm working on a project and need to create a screen similar to the iPhone home screen: A scrollview with multiple pages A bunch of icons When not in edit mode, swipe through different pages (even I started the touch on an icon) When not in edit mode, tap an icon to do something When in edit mode, drag the icon to swap places, and even swap…

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• UITextView inside UIScrollView is not First Responder

  - by Sheehan Alam

  I have a UITextView on a View that becomes the first responder. When I embed the UITextView inside of a UIScrollView in Interface Builder the UITextView is no longer the first responder. I am not sure what has changed? - (void)viewDidLoad { [super viewDidLoad]; [scrollView setContentSize:CGSizeMake(540,620)]; …

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• popViewControllerAnimated from back buttton

  - by Goods

  How can I popview from back button pressed, i passed the below code from previous view controller. Thanks self.navigationItem.backBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"Back" style:UIBarButtonItemStyleBordered target:nil action:nil];

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• Perl Moose::Util::TypeConstraints bug ? what is this error about the name has invalid chars ?

  - by alex8657

  That has been hours i am tracking a Moose::Util::TypeConstraints exceptions, i don't understand where it gets to check a type and tells me that the name is incorrect. I tracked the error to a reduced example to try to locate the problem, and it just shows me that i do not get it. Did i get to a…

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• iPhone JSON Object

  - by Cosizzle

  Hello, I'm trying to create a application that will retrieve JSON data from an HTTP request, send it to a the application main controller as a JSON object then from there do further processing with it. Where I'm stick is actually creating a class that will serve as a JSON class in which will…

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• NSPredicate and simple Regular Expression problem

  - by rjstelling

  I'm having problems with simple NSPredicates and regular expressions: NSString *mystring = @"file://questions/123456789/desc-text-here"; NSString *regex = @"file://questions+"; NSPredicate *regextest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex]; BOOL isMatch = [regextest…

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• Getting results in a result set from dynamic SQL in Oracle

  - by msorens

  This question is similar to a couple others I have found on StackOverflow, but the differences are signficant enough to me to warrant a new question, so here it is: I want to obtain a result set from dynamic SQL in Oracle and then display it as a result set in a SqlDeveloper-like tool,…

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• motionEnded methong not working with TabBarController iPhone

  - by harekam_taj

  Hello Guys, I can I make motionEnded work in one of my viewController inside the tabbarcontroller. -(BOOL)canBecomeFirstResponder { return YES; } In viewDidLoad I got [self becomeFirstResponder]; - (void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent *)event { if…

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• Call child's method or cast parent to child in Rails

  - by Brian

  I have some STI structure like following: class Box has_many :part,:class_name = "Part" end class Part def self.dosomething() end end class TypeA class TypeB assuming we have some codes like boxtypeA = Box.new. I am wondering if there is a way to make…

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• django: Display image in admin interface

  - by Oleg Tarasenko

  Hi, I've defined a model which contains a link an image. Is there a way to display the image in the model items list. (e.g. if I defined an article this way: class Article(models.Model): url = models.CharField(max_length = 200, unique = True,…

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• Some problem with MPMoviePlayerController using in ipad application

  - by Miraaj

  Hi all I am using MPMoviePlayerController in Ipad application. Video is not showing but audio comes, same code working well for Iphone NSBundle *bundle = [NSBundle mainBundle]; NSString *moviePath = [bundle pathForResource:@"video"…

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• Recommended Math textbooks for programmers

  - by Tony

  I learned math in a non-English environment, I recently read some books about algorithm analysis, I found some math concepts were confusing, and seemed not the same as what I've learned. What math textbooks would you recommend that…

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• ASIHttpRequest problems. "unrecognized selector sent to instance"

  - by Paul Peelen

  Hi, I am experiencing problems using ASIHttpRequst. This is the error I get: 2010-04-11 20:47:08.176 citybikesPlus[5885:207] *** -[CALayer rackDone:]: unrecognized selector sent to instance 0x464a890 2010-04-11 20:47:08.176…

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• How do I create a partial function with generics in scala?

  - by Matteo Caprari

  Hello. I'm trying to write a performance measurements library for Scala. My idea is to transparently 'mark' sections so that the execution time can be collected. Unfortunately I wasn't able to bend the compiler to my will. …

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• PHP Form POST to external URL with Redirect to another URL

  - by Marlon

  So, what I am trying to accomplish is have a self-posting PHP form, POST to an external page (using CURL) which in turn redirects to another page. Currently, what is happening is that once I click "Submit" on the form (in…

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• Justifying UIVIews on the iPhone: Algorithm Help

  - by coneybeare

  I have been messing around with a way to justify align a collection of UIView subclasses within a containing view. I am having a little bit of trouble with the algorithm and was hoping someone could help spot my errors. …

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• Animate an image view in Cocoa Touch

  - by happyCoding25

  Hello, I need to make an image view animate it's self on and off of the screen. I want it to be when the user taps the screen the image slides up. Is there a relatively easy way to smoothly move the image view? Thanks…

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• 'object' undeclared <first use in this function>

  - by Mohit Deshpande

  I am using Winchain to develop on my Windows 7 machine. Here is my code: iPhoneTest.h #import <Foundation/Foundation.h> #import <UIKit/UIKit.h> @interface iPhoneTest : UIApplication { UITextView…

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• How to make a transparent NSScroller?

  - by aquaibm

  This is my application screenshot.There is only one NSScrollView on the window.I try to make all the scrollview elements transparent,and obviously parts of my code work, but the scroller doesn't. Here is my draw…

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• sage pay testing error

  - by Phil Jackson

  Hi, im trying to test my sage pay integration but to no avail. Here is my code: private function init_sagepay(){ extract( static::$post ); $settings = global_data::get_settings(); $strConnectTo =…

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• Count warnings in Python 2.4

  - by l0b0

  I've got some tests that need to count the number of warnings raised by a function. In Python 2.6 this is simple, using with warnings.catch_warnings(record=True) as warn: ... …

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• Python-Requests close http connection

  - by James Eggers

  I was wondering, how do you close a connection with Requests (python-requests.org)? With httplib it's HTTPConnection.close(), but how do I do the same with Requests? Code is…

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