Jim Roepcke JimRoepcke

Computer Scientist. Lead iOS Developer.

JimRoepcke / gist:4536602

Created January 15, 2013 06:13

Putting a category on model classes to specialize UI/layout code for each model type

	// In MyViewController.m

	@interface BaseModelClass (MyViewControllerLayout)

	// If your model classes don't have a common superclass, put
	// this category on NSObject instead

	- (void)layoutForMyViewController:(MyViewController *)controller;

	@end

JimRoepcke / gist:3065296

Created July 7, 2012 07:46

@synchronized doesn't retain monitored object under MRC

	__block id foo = [MyObject new];
	dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
	NSLog(@"block entering synchronized");
	@synchronized(foo) {
	NSLog(@"running in synchronized");
	sleep(10);
	NSLog(@"running [foo self]");
	[foo self];
	NSLog(@"ran [foo self]");
	}

JimRoepcke / gist:3016633

Created June 29, 2012 08:21

My chat with MobileMe Express Lane support about iCloud Mail and iPhone 3G

	Chat Transcript

	Friday, June 29, 2012 12:41 AM
	Duration: 19 minutes 56 seconds

	Shante:
	Hi, welcome to Apple! My name is Shante with MobileMe support. Please give me a moment to look over the information you provided.

	Shante:
	I understand that you would like to confirm that you can move your accounts in any order that you want to and once the accounts are moved to iCloud they will be individual accounts?

JimRoepcke / gist:918268

Created April 13, 2011 19:50

Make an Automator service that receives text with a Run Applescript command

	-- select @"foo", activate this service
	-- @"foo" is replaced with kFoo and
	-- the clipboard contains the variable
	-- declaration for your .h/.m files

	-- http://discussions.apple.com/message.jspa?messageID=2900758
	on getString(testChar, theString, searchList, replaceList)
	set {oldDelims, AppleScript's text item delimiters} to ¬
	{AppleScript's text item delimiters, {testChar}}
	set charOffset to (length of (text item 1 of searchList)) + 1

JimRoepcke / gist:732885

Created December 8, 2010 04:31

Program received signal: “EXC_BAD_ACCESS”. (gdb) p/x $eax $1 = 0xfe15980

	Happens while randomly scrolling a table view in the simulator. Both alloc and free are not in my code. Is this a bug in Apple's code or am I missing something?

	ALLOC 0xfe15980-0xfe15997 [size=24]: thread_a001a500 \|start \| main \| UIApplicationMain \| GSEventRun \| GSEventRunModal \| CFRunLoopRunInMode \| CFRunLoopRunSpecific \| __CFRunLoopRun \| __CFRunLoopDoSource1 \| __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ \| mshMIGPerform \| _XCopyParameterizedAttributeValue \| _AXXMIGCopyParameterizedAttributeValue \| _copyParameterizedAttributeValueCallback \| _createAXUIElementsFromUIElements \| _appendVendedAXElementsFromUIElements \| _addAXElementsToArrayFromObject \| _appendChildrenToArrayStartingAtIndex \| -[UITableViewCellAccessibilityElement isAccessibilityElement] \| -[UITableViewCellAccessibilityElement tableViewCell] \| -[UITableViewCellAccessibility(SafeCategory) _accessibilityReuseChildren:forMockParent:] \| -[UITableViewCellAccessibility(SafeCategory) _accessibilityInternalData] \| -[_AXTableViewCellInternal