Replace all NSNull objects in an NSDictionary
I'm curious, I currently have an NSDictionary where some values are set to an NSNull object thanks to the help of json-framework. The aim is to strip all NSNull values and replace it with an empty string. I'm sure someone has done this somewhere? No doubt it is probably a four liner and is simple, I am just far too burnt out to figure this out on my own.
What are the details of "Objective-C Literals" mentioned in the Xcode 4.4 release notes?
I was going through the release notes for Xcode 4.4 and noticed this: LLVM 4.0 Compiler Xcode now includes the Apple LLVM Compiler version 4.0, including the following newObjective-C language features: [...] - Objective-C literals: create literals for NSArray, NSDictionary, and NSNumber, just the same as the literals for NSString I'm intrigued about this feature. It's not entirely clear to me just
UPSERT *not* INSERT or REPLACE
http://en.wikipedia.org/wiki/Upsert Insert Update stored proc on SQL Server Is there some clever way to do this in SQLite that I have not thought of? Basically I want to update three out of four columns if the record exists. If it does not exist, I want to INSERT the record with the default (NULL) value for the fourth column. The ID is a primary key, so there will only ever be one record to UPSERT
Verifying a Receipt with the App Store
Retrieve the receipt data from the transaction’s transactionReceipt property and encode it using base64 encoding. How can I encode NSData using base64 encoding? Please give the code for that. EDIT I did it. but now the response is {exception = "java.lang.NullPointerException"; status = 21002;} my recipt verification method is this -(BOOL)verifyReceipt:(SKPaymentTransaction *)transaction { NSString
Xcode 4: Creating a UIView xib, not properly connecting
I'm trying to create a nib that contains a view that will be embedded in a TableViewCell. I've created the interface and implementation files, ResultCell.h and ResultCell.m. They're stock, out-of-the-box, no code changes. I then create an empty XIB file, and drag a UIView onto it. Then I click File's Owner, and set the type to ResultCell. I click the view, and set its class to also be ResultCell.
How do you add multi-line text to a UIButton?
I have the following code... UILabel *buttonLabel = [[UILabel alloc] initWithFrame:targetButton.bounds]; buttonLabel.text = @"Long text string"; [targetButton addSubview:buttonLabel]; [targetButton bringSubviewToFront:buttonLabel]; ...the idea being that I can have multi-line text for the button, but the text is always obscured by the backgroundImage of the UIButton. A logging call to show the sub
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UIViewControllerHierarchyInconsistency Exception with MonoTouch
LibXML2.dylib and Xcode4
How can I "add existing frameworks" in Xcode 4?
Customize 'Copy' text popup (UIWebView)?
OpenGL Game Template found in xcode 4.2 (What is going on in this code?!!)
Forcing UIInterfaceOrientation changes on iPhone
How to incorporate WebSockets into a Cocoa application
iPhone Proximity Sensor
AVAudioRecorder & AVAudioPlayer - Sound output on internal speaker, how to change?
AudioStreamer playback from ear-speaker instead of bottom speaker on iPhone
Different behaviour for allocations instruments (with and without zombie-mode)
Can't find .js file in my mainBundle?
iPhone - Get Position of UIView within entire UIWindow
Checking the size of an object in Objective-C