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2014/10/15 ¤U¤È 10:10:29
iphone Programming Glossary: instantiateAdd UIPickerView & a Button in Action sheet - How? http://stackoverflow.com/questions/1262574/add-uipickerview-a-button-in-action-sheet-how conform to the SimpleTableViewDelegate and implement the itemSelectedAtRow method. Then to open the modal just instantiate a new SimpleTableViewController set the table data and delegate and present it. UINavigationController navigationController.. data and delegate and present it. UINavigationController navigationController UINavigationController self.storyboard instantiateViewControllerWithIdentifier @ SimpleTableVC SimpleTableViewController tableViewController SimpleTableViewController navigationController..
How to make xib compatible with both iphone 5 and iphone 4 devices http://stackoverflow.com/questions/13275144/how-to-make-xib-compatible-with-both-iphone-5-and-iphone-4-devices all the outlet and method name attach them all the same as in the iphone 4 xib. In coding do something like this to instantiate the view controllers if thisDevice.userInterfaceIdiom UIUserInterfaceIdiomPad NSLog @ Ipad else NSLog @ Iphone f UIScreen..
iPhone - What are reuseIdentifiers (UITableViewCell)? http://stackoverflow.com/questions/2152180/iphone-what-are-reuseidentifiers-uitableviewcell for the tableView you can greatly speed things up. Instead of instantiating a lot of cells you just instantiate as many as needed i.e. as many that are visible this is handled automatically . If scrolling to an area in the list where..
iPhone: how to use performSelector:onThread:withObject:waitUntilDone: method? http://stackoverflow.com/questions/2584394/iphone-how-to-use-performselectoronthreadwithobjectwaituntildone-method problem is that I am not able to use performSelector onThread withObject waitUntilDone method with a thread that I' instantiated for this. My code @interface MyObject NSObject NSThread _myThread @property nonatomic retain NSThread myThread @end @implementation.. release _myThread nil super dealloc @end MyObject privateInit start is never printed. What am I missing I tried to instantiate the thread with target and selector tried to wait for method execution completion waitUntilDone YES . Nothing helps. UPDATE..
http://stackoverflow.com/questions/3245733/apple-gyroscope-sample-code the motionManager accesible through a singleton but thats some extra work which you might not need to do if you only instantiate your class once. Then in your init method you should allocate the motion manager object like so motionManager CMMotionManager..
Is there a way to instantiate a NSManagedObject without inserting it? http://stackoverflow.com/questions/3868514/is-there-a-way-to-instantiate-a-nsmanagedobject-without-inserting-it there a way to instantiate a NSManagedObject without inserting it I have a user interface to insert a Transaction. once the user clicks on a plus.. it I have a user interface to insert a Transaction. once the user clicks on a plus he gets the screen and i want to instantiate my Core Data NSManagedObject entity let the user work on it. Then when the user clicks on the Save button i will call the.. the NSFetchedResultsController is inserting a section and an object to the table. My thought is if there is a way to instantiate the Transaction NSManagedObject i could update it with out saving untill the client choses to. iphone core data nsfetchedresultscontrolle..
How can I get current location from user in iOS http://stackoverflow.com/questions/4152003/how-can-i-get-current-location-from-user-in-ios this question You use the CoreLocation framework to access location information about your user. You will need to instantiate a CLLocationManager object and call the asynchronous startUpdatingLocation message. You will get callbacks with the user's..
Can somebody explain the process of a UIViewController birth (which method follows which)? http://stackoverflow.com/questions/5107604/can-somebody-explain-the-process-of-a-uiviewcontroller-birth-which-method-follo object. When it is first allocated an initialized it has no view object associated with it. The view is only instantiated when and if it is required. So without considering the view the lifecycle of a viewController is the same as any other.. the view from a nib If you use a nib file the default implementation of loadView will automatically open that nib file instantiate its objects add any connections between them and take care of the memory management for you. Things get a little more tricky.. with nib files since so much happens behind the scenes. The awakeFromNib method is called for every object that is instantiated when a nib file is loaded and there is no guarantee that the other objects in the nib file will have been fully loaded..
Proper way to instantiate an NSDecimalNumber from float or double http://stackoverflow.com/questions/5304855/proper-way-to-instantiate-an-nsdecimalnumber-from-float-or-double way to instantiate an NSDecimalNumber from float or double I'm looking for the best way to instantiate an NSDecimalNumber from a double or.. way to instantiate an NSDecimalNumber from float or double I'm looking for the best way to instantiate an NSDecimalNumber from a double or short. There are the following NSNumber class and instance methods... NSNumber numberWithFloat..
NSInternalInconsistencyException Could not load nib in bundle http://stackoverflow.com/questions/5415252/nsinternalinconsistencyexception-could-not-load-nib-in-bundle raise format arguments 68 3 CoreFoundation 0x318244cb NSException raise format 34 4 UIKit 0x330d2a53 UINib instantiateWithOwner options 1110 5 UIKit 0x330d3e09 NSBundle UINSBundleAdditions loadNibNamed owner options 92 6 UIKit 0x3304d5e9.. solve this problem. iphone cocoa touch ipad crash nib share improve this question It looks like you're trying to instantiate a nib called ThemePickerController.nib and it isn't present. Is the nib included as a project member share improve this..
dismissModalViewController AND pass data back http://stackoverflow.com/questions/6203799/dismissmodalviewcontroller-and-pass-data-back doing this #import SecondViewController.h @interface FirstViewController UIViewController SecondDelegate Now when you instantiate secondViewController in firstViewController you should do the following SecondViewController second SecondViewController..
Using a singleton to create an array accessible by multiple views http://stackoverflow.com/questions/6324732/using-a-singleton-to-create-an-array-accessible-by-multiple-views of objects from anywhere within my app. I would also like to do this using a singleton. My questions are Where do I instantiate my singleton object Where do I instantiate my NSMutable array of objects How do I refer to this array from anywhere within.. I would also like to do this using a singleton. My questions are Where do I instantiate my singleton object Where do I instantiate my NSMutable array of objects How do I refer to this array from anywhere within my project All code and examples are greatly..
Rotating the iPhone, and instantiating a new UIViewController? http://stackoverflow.com/questions/730799/rotating-the-iphone-and-instantiating-a-new-uiviewcontroller a new UIViewController I would like to implement the following. When the user rotates the iPhone I want to instantiate a new UIViewController automatically upon rotation not clicking a button or performing a similar action and show to the.. to the user a view handled by this new UIViewController in landscape orientation. How to do this properly I tried to instantiate the new controller in the methods willRotateToInterfaceOrientation and didRotateFromInterfaceOrientation but none of this..
Storyboard - refer to ViewController in AppDelegate http://stackoverflow.com/questions/8186375/storyboard-refer-to-viewcontroller-in-appdelegate c ios uiviewcontroller storyboard share improve this question Have a look at the documentation for UIStoryboard instantiateViewControllerWithIdentifier . This allows you to instantiate a view controller from your storyboard using the identifier.. Have a look at the documentation for UIStoryboard instantiateViewControllerWithIdentifier . This allows you to instantiate a view controller from your storyboard using the identifier that you set in the IB Attributes Inspector EDITED to add example..
Core Data vs. SQLite for SQL experienced developers http://stackoverflow.com/questions/840634/core-data-vs-sqlite-for-sql-experienced-developers however. Once you get the result of a query what are you going to do with it If you roll your own you'll have to instantiate objects handle faulting uniqueing if you don't want to load the entire result of a query into memory immediately and all..
Why does Apple recommend to use dispatch_once for implementing the singleton pattern under ARC? http://stackoverflow.com/questions/9119042/why-does-apple-recommend-to-use-dispatch-once-for-implementing-the-singleton-pat sharedInstance MyClass alloc init Do any other initialisation stuff here return sharedInstance Isn't it a bad idea to instantiate the singleton asynchronously in the background I mean what happens if I request that shared instance and rely on it immediately..
iOS iPhone 5 Choose Correct Storyboard http://stackoverflow.com/questions/14266776/ios-iphone-5-choose-correct-storyboard 480 iPhone 3GS 4 and 4S and iPod Touch 3rd and 4th generation 3.5 inch screen diagonally measured Instantiate a new storyboard object using the storyboard file named Storyboard_iPhone35 UIStoryboard iPhone35Storyboard UIStoryboard.. named Storyboard_iPhone35 UIStoryboard iPhone35Storyboard UIStoryboard storyboardWithName @ MainStoryboard bundle nil Instantiate the initial view controller object from the storyboard UIViewController initialViewController iPhone35Storyboard instantiateInitialViewController.. object from the storyboard UIViewController initialViewController iPhone35Storyboard instantiateInitialViewController Instantiate a UIWindow object and initialize it with the screen size of the iOS device self.window UIWindow alloc initWithFrame UIScreen..
UITextField: move view when keyboard appears http://stackoverflow.com/questions/1775860/uitextfield-move-view-when-keyboard-appears controller it consists of a single method which will be called when keyboard is shown hidden or its size is changed. Instantiate the KBKeyboardHandler and set its delegate typically self . See sample MyViewController below. KBKeyboardHandler.h @protocol..
How do I drop a pin with MapKit? http://stackoverflow.com/questions/1917383/how-do-i-drop-a-pin-with-mapkit @interface AnnotationDelegate NSObject MKAnnotation CLLocationCoordinate2D coordinate NSString title NSString subtitle Instantiate your delegate object and add it to the map AnnotationDelegate annotationDelegate AnnotationDelegate alloc initWithCoordinate..
Received memory warning. Level=1 when showing a UIImagePickerController http://stackoverflow.com/questions/3099029/received-memory-warning-level-1-when-showing-a-uiimagepickercontroller UIColor colorWithPatternImage UIImage imageNamed @ green_felt_bg.jpg Init UIImagePickerController Instantiate a UIImagePickerController for use throughout app and set delegate self.playerImagePicker UIImagePickerController alloc init..
problem with “this class is not key value coding-compliant” http://stackoverflow.com/questions/3760803/problem-with-this-class-is-not-key-value-coding-compliant it and dequeue is passing nil back so even pass cell as the owner is still essentially passing nil . Two options Instantiate a new cell in your cellForRowAtIndexPath NSIndexPath indexPath implementation and pass that new cell as the owner but i'd..
how to fix xcode warning “Expression result unused” http://stackoverflow.com/questions/6688764/how-to-fix-xcode-warning-expression-result-unused connection if there is on if connectionInProgress connectionInProgress cancel connectionInProgress release Instantiate the object to hold all incoming data cookieData release cookieData NSMutableData alloc init create and initiate the connection..
How to use a common target object to handle actions/outlets of multiple views? http://stackoverflow.com/questions/6950674/how-to-use-a-common-target-object-to-handle-actions-outlets-of-multiple-views NSDictionary nibOptions NSDictionary dictionaryWithObjectsAndKeys externalObjects UINibExternalObjects nil Instantiate the objects in the nib passing in the owner coincidentally also a proxy in the NIB and your options dictionary. NSArray..
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