ˇ@
2014/10/15 ¤U¤Č 10:10:03
iphone Programming Glossary: helperUIImagePickerController and extracting EXIF data from existing photos http://stackoverflow.com/questions/1238838/uiimagepickercontroller-and-extracting-exif-data-from-existing-photos EXFJpeg alloc init jpegScanner scanImageData jpegData EXFMetaData exifMetaData jpegScanner.exifMetaData end of helper methods adding GPS data to the Exif object NSMutableArray locArray self createLocArray imageLocation.coordinate.latitude..
Drag UIView around Shape Comprised of CGMutablePaths http://stackoverflow.com/questions/13664615/drag-uiview-around-shape-comprised-of-cgmutablepaths clockwise 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.. is a cubic curve or a śclose path All of those except close path define a segment endpoint which we pick up with our helper function from earlier CGPoint p lastPointOfPathElement element if p return If the endpoint is too close to the prior point..
http://stackoverflow.com/questions/2015353/using-calayer-delegate to conform to. iphone calayer share improve this question The lightest wight solution would be to create a small helper class in the the file as the UIView that's using the CALayer In MyView.h @interface MyLayerDelegate NSObject . . . @end..
UITableView Core Data reordering http://stackoverflow.com/questions/2360938/uitableview-core-data-reordering we need to load the the table view data in the viewWillAppear method void viewWillAppear BOOL animated myTableViewData helper getRowObjects insert method call here to get the data self.navigationItem.leftBarButtonItem self editButtonItem There are.. later the first is that we need to get our data from CoreData. When I have to do this I have some sort of helper call it what you want object do the work. A typical find method would look like this NSMutableArray getRowObjects NSFetchRequest.. animated animated if editing int i 0 for RowObj row in myTableViewData row.displayOrder NSNumber numberWithInt i helper saveManagedObjectContext basically calls managedObjectContext save error We don't have to do anything when the user is..
Popover with embedded navigation controller doesn't respect size on back nav http://stackoverflow.com/questions/2752394/popover-with-embedded-navigation-controller-doesnt-respect-size-on-back-nav will navigate back between the controllers. You could easily create category on UIViewController with the following helper method that would do the trick with setting the size void forcePopoverSize CGSize currentSetSizeForPopover self.contentSizeForViewInPopover..
Downloading a Large File - iPhone SDK http://stackoverflow.com/questions/4002979/downloading-a-large-file-iphone-sdk done close the stream stream close A better approach would be to add the stream in addition to the data ivar set the helper as the stream's delegate buffer incoming data in the data ivar then dump the data ivar's contents to the helper whenever.. the helper as the stream's delegate buffer incoming data in the data ivar then dump the data ivar's contents to the helper whenever the stream sends the helper its space available event and clear it out of the data ivar. share improve this answer..
How do you beta test an iphone app? http://stackoverflow.com/questions/40154/how-do-you-beta-test-an-iphone-app there is an app for that Click on the below link and install and then run the app. http itunes.apple.com app ad hoc helper id285691333 mt 8 This app will create an email. Please send it to me. Collect all the UDIDs from your testers. Go to the..
What causes “Missed Method” in this code? http://stackoverflow.com/questions/6323244/what-causes-missed-method-in-this-code the call came from and what the parameters are. As to a plain description of this function I would say that it is an helper function that wraps a call to a selector by preceding it with a check of existence of that selector. Instead of checking.. with a check of existence of that selector. Instead of checking each time and the performing the selector you call the helper function that will do both things for you. So the reason you always see the log line is that the function you would like..
iOS Pinch Scale and Two Finger Rotate at same time http://stackoverflow.com/questions/8108768/ios-pinch-scale-and-two-finger-rotate-at-same-time recognizer toTransform transform selectedImage.transform transform break default break You'll need this helper method CGAffineTransform applyRecognizer UIGestureRecognizer recognizer toTransform CGAffineTransform transform if recognizer..
ASIHTTPRequest vs AFNetworking framework http://stackoverflow.com/questions/8636418/asihttprequest-vs-afnetworking-framework thriving developer community whereas ASIHTTPRequest is pretty much dead. Additionally AFNetworking has dozens of great helper libraries and classes available for handling things like OAuth Amazon S3 and the like. It's so popular that there's several..
http://stackoverflow.com/questions/8723923/core-data-vs-sqlite-or-fmdb a made up stat the answer on iOS will be to use Core Data. Why Once you get the hang of it and build out a few little helper methods Core Data keeps you in a consistent computing world the Objective C object graph. Core Data will teach you things..
http://stackoverflow.com/questions/9204025/how-do-i-create-a-global-uimanageddocument-instance-per-document-on-disk-shared UIManagedDocument instance per document on disk shared by my whole application using blocks I am trying to design a helper method which will retrieve a UIManagedDocument then open and return it so that I may access the same UIManagedDocument from.. nature of this as I am not too familiar with blocks. Ideally the sequence of events would be this Class X calls the helper method to retrieve the UIManagedDocument and includes a block of code to run when the opened document is returned. The class..
UIImagePickerController and extracting EXIF data from existing photos http://stackoverflow.com/questions/1238838/uiimagepickercontroller-and-extracting-exif-data-from-existing-photos alloc init jpegScanner populateImageData taggedJpegData jpegScanner release return taggedJpegData autorelease Helper methods for location conversion NSMutableArray createLocArray double val val fabs val NSMutableArray array NSMutableArray..
adjust corners and crop the image openCV http://stackoverflow.com/questions/13098073/adjust-corners-and-crop-the-image-opencv A4 paper 210x297mm . Feel free to edit paperWidth and paperHeight inside my code. Combining everything looks like this Helper cv Point getCenter std vector cv Point points cv Point center cv Point 0.0 0.0 for size_t i 0 i points.size i center.x points.. i center.x points i .x center.y points i .y center.x center.x points.size center.y center.y points.size return center Helper 0 1 3 2 std vector cv Point sortSquarePointsClockwise std vector cv Point square cv Point center getCenter square std vector.. square 0 sorted_square.push_back square 1 sorted_square.push_back square 2 break break return sorted_square Helper float distanceBetweenPoints cv Point p1 cv Point p2 if p1.x p2.x return abs p2.y p1.y else if p1.y p2.y return abs p2.x..
Converting NSString to Currency - The Complete Story http://stackoverflow.com/questions/1960300/converting-nsstring-to-currency-the-complete-story question I am going to provide a complete answer for those who have this problem in the future. First I created a new Helper Class called NumberFormatting and created two methods. NumberFormatting.h Created by Noah Hendrix on 12 26 09. #import Foundation..
where to start with audio synthesis on iPhone http://stackoverflow.com/questions/2067267/where-to-start-with-audio-synthesis-on-iphone A 0 Asharp B C Csharp D Dsharp E F Fsharp G Gsharp Bflat Asharp Dflat Csharp Eflat Dsharp Gflat Fsharp Aflat Gsharp Helper function calculates fundamental frequency for a given note float CalculateFrequencyFromNote SInt32 semiTones SInt32 octave..
http://stackoverflow.com/questions/37464/iphone-app-minus-app-store involves adding UUIDs for each of the devices to your application package. UUIDs can be easiest retrieved using Ad Hoc Helper available from the App Store. For further details on this method see Craig Hockenberry's Beta testing on iPhone 2.0 article..
iPad/iPhone multiple orientations best practice? http://stackoverflow.com/questions/4253623/ipad-iphone-multiple-orientations-best-practice Basically the helper has an outlet for each object of interest in the view. The ViewController itself has two Helper objects one for p one for l and you instantiate those in the NIB. On orientation changes you switch the view controller's.. would you start Well it helps if you know a priori that you will need two separate view. Once you know that take the Helper template in the referenced project below adapt it add it to your NIB and then connect the help to the appropriate objects.. appropriate objects in the portrait view. The View Controller itself just has a reference to the two helpers and a curHelper pointer. The Helper ivars are public so the View Controller can reference items like curHelper label1.text ... the cost..
|