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2014/10/15 ¤U¤È 10:04:54
iphone Programming Glossary: carObjective-C 101 (retain vs assign) NSString http://stackoverflow.com/questions/1380338/objective-c-101-retain-vs-assign-nsstring C 101 retain vs assign NSString A 101 question Let's say i'm making database of cars and each car object is defined as #import UIKit UIKit.h @interface Car NSObject NSString name @property nonatomic retain.. C 101 retain vs assign NSString A 101 question Let's say i'm making database of cars and each car object is defined as #import UIKit UIKit.h @interface Car NSObject NSString name @property nonatomic retain NSString name..
Core Data: Quickest way to delete all instances of an entity http://stackoverflow.com/questions/1383598/core-data-quickest-way-to-delete-all-instances-of-an-entity for let's say Cars could be about 2000 of them and I can't make the Web Service return anything less than 1 or ALL cars. The next time I open my application I want to refresh the Core Data persisted copy by calling the Web Service for all.. myContext allCars setIncludesPropertyValues NO only fetch the managedObjectID NSError error nil NSArray cars myContext executeFetchRequest allCars error error allCars release error handling goes here for NSManagedObject car in cars.. cars myContext executeFetchRequest allCars error error allCars release error handling goes here for NSManagedObject car in cars myContext deleteObject car NSError saveError nil myContext save saveError more error handling here share improve..
How do I translate parabolically? http://stackoverflow.com/questions/1886158/how-do-i-translate-parabolically a view I want to translate but not along a line. I want to translate it parabolically. Imagine that I am animating a car moving along a curved road. I know I can set the transform properly to an instance of CGAffineTransform Problem is I have..
Detecting Acceleration in a car (iPhone Accelerometer) http://stackoverflow.com/questions/2733249/detecting-acceleration-in-a-car-iphone-accelerometer Acceleration in a car iPhone Accelerometer I am working on an iPhone app where we are trying to calculate the acceleration of a moving car. Similar.. car iPhone Accelerometer I am working on an iPhone app where we are trying to calculate the acceleration of a moving car. Similar apps have accomplished this Dynolicious but the difference is that this app is designed to be used during general.. force from the current force to get the current acceleration this frame. The problem with this is that the typical car receives much more force than just the forward force everything from turning to potholes was causing the values to go out..
http://stackoverflow.com/questions/4089238/implementing-nscopying objectForKey @ Telephone objectForKey @ @PhoneNumber availableCars NSMutableArray alloc init NSMutableArray cars NSMutableArray vehVendorAvails objectForKey @ VehAvails for int i 0 i cars count i Car car Car alloc initFromVehicleDictionary.. NSMutableArray alloc init NSMutableArray cars NSMutableArray vehVendorAvails objectForKey @ VehAvails for int i 0 i cars count i Car car Car alloc initFromVehicleDictionary cars objectAtIndex i availableCars addObject car car release self.venLogo.. alloc init NSMutableArray cars NSMutableArray vehVendorAvails objectForKey @ VehAvails for int i 0 i cars count i Car car Car alloc initFromVehicleDictionary cars objectAtIndex i availableCars addObject car car release self.venLogo vehVendorAvails..
how to compile spatialite for iOS http://stackoverflow.com/questions/4793970/how-to-compile-spatialite-for-ios fully standalone static library of spatialite 2.3.1 that embeds the required GEOS and PROJ so that don't have to take car of them . Just download the zip http bit.ly eg6jSe and you'll get the .a for x86 and arm headers so that you can use directly..
iPhone CoreLocation: How to get the most accurate speed http://stackoverflow.com/questions/582511/iphone-corelocation-how-to-get-the-most-accurate-speed kCLLocationAccuracyNearestTenMeters and reading CLLocation.speed property Testing while driving around in my car the accuracy seems good compared to the car speedometer although it takes a while to update. I realize that the update delay.. and reading CLLocation.speed property Testing while driving around in my car the accuracy seems good compared to the car speedometer although it takes a while to update. I realize that the update delay may very well be the time it takes to query..
Objective-C 101 (retain vs assign) NSString http://stackoverflow.com/questions/1380338/objective-c-101-retain-vs-assign-nsstring 101 question Let's say i'm making database of cars and each car object is defined as #import UIKit UIKit.h @interface Car NSObject NSString name @property nonatomic retain NSString name Why is it @property nonatomic retain NSString name and not..
Core Data: Quickest way to delete all instances of an entity http://stackoverflow.com/questions/1383598/core-data-quickest-way-to-delete-all-instances-of-an-entity Data to locally persist results from a Web Services call. The web service returns the full object model for let's say Cars could be about 2000 of them and I can't make the Web Service return anything less than 1 or ALL cars. The next time I open.. The next time I open my application I want to refresh the Core Data persisted copy by calling the Web Service for all Cars again however to prevent duplicates I would need to purge all data in the local cache first. Is there a quicker way to.. Adam iphone objective c core data share improve this question Fetch 'em all and delete 'em all NSFetchRequest allCars NSFetchRequest alloc init allCars setEntity NSEntityDescription entityForName @ Car inManagedObjectContext myContext allCars..
Car (Annotation) animation (like uber app) not working http://stackoverflow.com/questions/19268080/car-annotation-animation-like-uber-app-not-working Annotation animation like uber app not working I made one demo project from Moving MKAnnotationView demo on github for..
http://stackoverflow.com/questions/2426651/pickerview-exc-bad-access list addObject @ Bomb list addObject @ Bungee Jumper list addObject @ Cactus list addObject @ Cake list addObject @ Car list addObject @ Caterpillar list addObject @ Couch list addObject @ Dennis anvil UIImage imageNamed @ anvil.png apple UIImage.. cactus else if list objectAtIndex row isEqual @ Cake object setImage cake else if list objectAtIndex row isEqual @ Car object setImage car else if list objectAtIndex row isEqual @ Caterpillar object setImage caterpillar else if list objectAtIndex..
when and where to put @class declarations http://stackoverflow.com/questions/3258892/when-and-where-to-put-class-declarations and where to put @class declarations I am working on a project with several custom classes. I have a CardModel NSObject that has some integer properties to hold data and a Deck NSObject that has an array to hold a bunch of CardModels.. NSObject that has some integer properties to hold data and a Deck NSObject that has an array to hold a bunch of CardModels and then a CardView UIView that has a CardModel as a property that I make when I select a CardModel from a Deck ... some integer properties to hold data and a Deck NSObject that has an array to hold a bunch of CardModels and then a CardView UIView that has a CardModel as a property that I make when I select a CardModel from a Deck . And then I've got a bunch..
http://stackoverflow.com/questions/4089238/implementing-nscopying to implement what is required. My class Vendor @interface Vendor NSObject NSString vendorID NSMutableArray availableCars BOOL atAirport @property nonatomic copy NSString vendorID @property nonatomic retain NSMutableArray availableCars @property.. BOOL atAirport @property nonatomic copy NSString vendorID @property nonatomic retain NSMutableArray availableCars @property nonatomic assign BOOL atAirport id initFromVehVendorAvailsDictionary NSDictionary vehVendorAvails @end The Vendor.. id initFromVehVendorAvailsDictionary NSDictionary vehVendorAvails @end The Vendor class has an array of objects called Car . My Car object @interface Car NSObject BOOL isAvailable NSString transmissionType NSMutableArray vehicleCharges NSMutableArray..
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