2014/10/15 下午 10:13:31

iphone Programming Glossary: routine

Optimizing CLLocationManager/CoreLocation to retrieve data points faster on the iPhone

http://stackoverflow.com/questions/1081219/optimizing-cllocationmanager-corelocation-to-retrieve-data-points-faster-on-the

this forces locationManager to do it's thing and it should try and get you a new value. 4 The core location delegate routine is tricky to get accurate updates out of. When your App first initializes you can be off in accuracy by 1000 meters or more..

How to launch iPhone Camera on viewDidLoad?

http://stackoverflow.com/questions/1355798/how-to-launch-iphone-camera-on-viewdidload

viewDidAppear BOOL animated allowed the camera to be launched but the app crashed immediately afterward with the last routine being UIWindowController transitionViewDidComplete fromView toView as cited by Debugger iphone uikit uiviewcontroller camera..

Drag UIView around Shape Comprised of CGMutablePaths

http://stackoverflow.com/questions/13664615/drag-uiview-around-shape-comprised-of-cgmutablepaths

YES path_ closePath Next we're going to want to compute the array of points along that path. We'll need a helper routine to pick out the endpoint of each path element static CGPoint lastPointOfPathElement CGPathElement const element int index..

cocoa - I've discovered what I think is a bug with NSDecimalNumber

http://stackoverflow.com/questions/2479100/cocoa-ive-discovered-what-i-think-is-a-bug-with-nsdecimalnumber

is not delivering a correct conversion. Although I cannot find documentation that claims that this conversion routine is correctly rounded there is no good reason for it not to be. This is a real bug please report it . I note that the string..

Is there a better way to determine the right size for a UITableViewCell?

http://stackoverflow.com/questions/272584/is-there-a-better-way-to-determine-the-right-size-for-a-uitableviewcell

logic wise. Just make a call to your self prepLayoutForCellAtIndex index within your heightForRowAtIndexPath routine. If the data is static you can create a height table and cache the info. if 0 heightTable index heightTable index self prepLayoutForCellAtIndex..

UIImage created from CMSampleBufferRef not displayed in UIImageView?

http://stackoverflow.com/questions/3305862/uiimage-created-from-cmsamplebufferref-not-displayed-in-uiimageview

works http forum.unity3d.com viewtopic.php p 300819 Here's a working sample app has a member UIImage theImage Delegate routine that is called when a sample buffer was written void captureOutput AVCaptureOutput captureOutput didOutputSampleBuffer CMSampleBufferRef..

Why is my CLLocationmanager delegate not getting called?

http://stackoverflow.com/questions/3731881/why-is-my-cllocationmanager-delegate-not-getting-called

not fire off location callbacks is to do all the set up in not the main thread. When I moved my setup routine to a performSelectorOnMainThread all worked exactly as expected. What a nightmare Hope this answer helps others... Edit..

Find the tangent of a point on a cubic bezier curve (on an iPhone)

http://stackoverflow.com/questions/4089443/find-the-tangent-of-a-point-on-a-cubic-bezier-curve-on-an-iphone

alternate version of Michal's answer which is more explanatory . To repeat bezierInterpolation finds the points. The routine altBezierInterpolation finds exactly the same points using the same math. But it is written in a simpler way which is easier.. same points using the same math. But it is written in a simpler way which is easier to understand. You can use either routine bezierInterpolation or altBezierInterpolation for identical results. In both cases use bezierTangent to find the tangents... In both cases use bezierTangent to find the tangents. Finally at the bottom is a code block containing only the two routines you need for the calculation and nothing else. Hope this helps someone in the future. MBBezierView.m original BY MICHAL..

How to create PBKDF2 key on iOS device

http://stackoverflow.com/questions/5526853/how-to-create-pbkdf2-key-on-ios-device

to create PBKDF2 key on iOS device I need to create a PBKDF2 key to use in my AES encryption routine in my iPhone Xcode application. I have seen references to using OpenSSL to do this but not found specific references to..

Applying Zoom Effect In cocos2D gaming environment?

http://stackoverflow.com/questions/5919180/applying-zoom-effect-in-cocos2d-gaming-environment

yourLayer.position centerPointDelta Pinch zoom is easier... just detect the touchesMoved and then call your scaling routine. void ccTouchesMoved NSSet touches withEvent UIEvent event Examine allTouches instead of just touches. Touches tracks only..

Permutations/Anagrams in Objective-C — I am missing something

http://stackoverflow.com/questions/6617253/permutations-anagrams-in-objective-c-i-am-missing-something

but not the most efficient. Here's a better approach. You are generating permutations lexicographically in the first routine 1234 1243 1324 1342 1423 ... Each time you call NSInteger pc_next_permutation NSInteger perm const NSInteger size you get..

How to properly call SQLite functions from background thread on iPhone?

http://stackoverflow.com/questions/745565/how-to-properly-call-sqlite-functions-from-background-thread-on-iphone

uncaught exception 'NSInternalInconsistencyException' reason 'Error failed to prepare statement with message 'library routine called out of sequence'.' 2009 04 13 17 36 09.933 Action Lists 1537 3d0b Terminating app due to uncaught exception 'NSInternalInconsistencyException'.. uncaught exception 'NSInternalInconsistencyException' reason 'Error failed to prepare statement with message 'library routine called out of sequence'.' Although I can't reliably reproduce the error I've convinced myself that it is due to the fact..

Why is XCode archive acting different than XCode build/run on iPhone

http://stackoverflow.com/questions/8813711/why-is-xcode-archive-acting-different-than-xcode-build-run-on-iphone

rect myView addSubview boardView The starting image comes down. Then passes control to the next animation routine for the clones. UIView beginAnimations @ addStartingImage context boardView UIView setAnimationDuration 1.2 UIView setAnimationDelegate..

AVCaptureSession specify resolution and quality of captured images obj-c iphone app

http://stackoverflow.com/questions/9312832/avcapturesession-specify-resolution-and-quality-of-captured-images-obj-c-iphone

CGColor self.view.layer addSublayer previewLayer aView.layer addSublayer previewLayer and output methods Delegate routine that is called when a sample buffer was written void captureOutput AVCaptureOutput captureOutput didOutputSampleBuffer CMSampleBufferRef..

TableView Crashing/Freezing Because Of Core Data Error

http://stackoverflow.com/questions/5454354/tableview-crashing-freezing-because-of-core-data-error

it is related to the following line in ViewDidLoad NSEntityDescription entity NSEntityDescription entityForName @ Routine inManagedObjectContext managedObjectContext . The console says the following Terminating app due to uncaught exception 'NSInternalInconsistencyException'.. 'NSInternalInconsistencyException' reason ' entityForName could not locate an NSManagedObjectModel for entity name 'Routine'' I think I need to use name instead of routine but that isn't working either. Here is my Core Data Model Here is my code.. need to use name instead of routine but that isn't working either. Here is my Core Data Model Here is my code #import RoutineTableViewController.h #import AlertPrompt.h #import Routine.h @implementation RoutineTableViewController @synthesize tableView..

Why Isn't Core Data Fetching My Data?

http://stackoverflow.com/questions/5467193/why-isnt-core-data-fetching-my-data

if you need any additional code to look at from the appdelegate.m etc. Here is the code for my View Controller #import RoutineTableViewController.h #import AlertPrompt.h #import Routine.h #import CurlAppDelegate.h @implementation RoutineTableViewController.. etc. Here is the code for my View Controller #import RoutineTableViewController.h #import AlertPrompt.h #import Routine.h #import CurlAppDelegate.h @implementation RoutineTableViewController @synthesize tableView @synthesize eventsArray @synthesize.. #import RoutineTableViewController.h #import AlertPrompt.h #import Routine.h #import CurlAppDelegate.h @implementation RoutineTableViewController @synthesize tableView @synthesize eventsArray @synthesize managedObjectContext void dealloc managedObjectContext..

Cell Not Being Added To TableViewController

http://stackoverflow.com/questions/5482782/cell-not-being-added-to-tableviewcontroller

of the routine entity and the table view should update itself accordingly. Here is my viewController Code #import RoutineTableViewController.h #import AlertPrompt.h #import Routine.h #import CurlAppDelegate.h @implementation RoutineTableViewController.. itself accordingly. Here is my viewController Code #import RoutineTableViewController.h #import AlertPrompt.h #import Routine.h #import CurlAppDelegate.h @implementation RoutineTableViewController @synthesize tableView @synthesize eventsArray @synthesize.. #import RoutineTableViewController.h #import AlertPrompt.h #import Routine.h #import CurlAppDelegate.h @implementation RoutineTableViewController @synthesize tableView @synthesize eventsArray @synthesize managedObjectContext void dealloc managedObjectContext..