IOS

[Original] FMDB source code reading (3), fmdb source code reading[Original] FMDB source code reading (3) Please specify the source for this reprinted article --Polobymulberry-blog1. Preface The best thing about FMDB is thatMulti-thread processing.

IOS development: teaches you how to implement objc_msgSend The objc_msgSend function supports everything we implement using Objective-C. Gwynne Raskind, reader of Friday Q & A, I suggest you talk about the internal implementation of objc_msgSend. Is

IOS development: log framework CocoaLumberjack CocoaLumberjack is a fast, simple, powerful, and flexible log framework on Mac and iOS. CocoaLumberjack is similar to a popular log framework (such as log4j), but it is designed for Objective-C and

IOS development: multi-language localization solution for Applications There are two common approaches for multilingual applications: 1. opportunities provided by the Program for the user to choose; 2. automatically switch our app to the

IOS development: the correct implementation method of the prompt box   During the upgrade from iOS8 to iOS9, the pop-up prompt box has changed a lot. In the Xcode7 and iOS9.0 sdks, it has been explicitly prompted that UIAlertView is no longer

IOS development: How to synchronize queues and semaphores To solve this problem, I have come up with two solutions: the first is to determine whether initialization has been performed before performing these operations, if Initialization is not

Attribute (@ property), @ synthesize, propertysynthesize The previous instance variables we learned are as follows: 1 {2 int _age;3 int _height;4 int age;5 } Learn attributes later 1 @property int age; @ Property will automatically

IOS -- ios -- xml Today, the Office receives a BUG returned by the customer, one of which is because the data in the string returned by the background is in xml/html format. -(Void) loadHTMLString :( NSString *) string baseURL :( nullable NSURL *)

Orders purchased in iOS correspond to replenishment orders, and ios orders correspond Key types of internal purchases: 1. SKPayment (SKMutablePayment can correspond one-to-one parameters to the payment generated by Apple) 2. TransactionObserver:

Communication between threads and threads We usually use multiple threads in iOS development, such as NSThread, GCD, and NSOperation. We usually load or download data in the Self-thread, therefore, it is inevitable to send the obtained data to the

IOS Design Pattern singleton: iOS Design Pattern   The Singleton Mode means that this class has only one instance, and this class is a singleton class. In iOS, many of them are Singleton NSNull, NSFileManager, UIApplication, NSUserDefaults,

[Code note] the implementation of the page turning effect, and the code note page turning I ,.     2. Engineering Drawing. 3. Code. RootViewController. h #import @interface RootViewController : UIViewController@end   RootViewController. m #

JSPatch deploys JS Code to control OC code and jspatch deploys jsocPreface: This is a more practical article. I have deployed network security.Preparation: Bmob account, JSPatch, public key, private key, MD5 encryption, AFNetWorking download file #

For iOS, hide the tabBar method. for iOS, hide the tabBar method. You can use either of the following methods to hide a tabBar: 1. Hide on this page # Pragma mark-hide tabBar -(Void) viewWillAppear :( BOOL) animated { Self. tabBarController.

IOS GCD and iOSGCDGCD Grand Central Dispatch written in pure C Language 1. GCD is Apple's solution for multi-core parallel operations GCD will automatically use more CPU cores (such as dual-core and quad-core) GCD automatically manages the thread

IOS Swift judges that the code runs on the simulator Some functions of the iOS simulator are not available, such as taking photos. Therefore, you need to add a simulator to the Code for judgment. After checking many articles, you can finally find

UITableView, iosuitableview Knowledge point: 1) UITableView 2) UITableViewCell   ========================================================== ====================   1. UITableView   1. Introduction to UITableView UITableView is a list view that

IOS development: built-in URL schemes In IOS applications, you can often see some applications jump directly to the App Store page through a click action. It is strange how such a third-party applies to interaction between IOS system applications.

Network Programming for iOS development-5. NSURLSessionUploadTask + NSURLSessionDataDelegate proxy upload, nsurlsessiondelegate The main content of NSURLSession is coming to an end. Here we will talk about file upload. Of course,

Objective, object 1. the category is the internal class of the system or the method for adding classes without source code. No instance variables are added. 2. The added method will become part of the original class, And the subclass can still be