IOS

IOS development network-basic use of NSURLConnection, iosnsurlconnection IOS development network-basic use of NSURLConnection I. Common NSURLConnection classes (1) NSURL: request address (2) NSURLRequest: encapsulates a request and stores all the

Common shortcuts for Xcode and xcode New Shift + cmd + n create a project Cmd + n create a file   Code prompt Esc   View Option + cmd + press enter to open the assistant editor Cmd + press enter to display the Main Window Cmd + 0 navigation

Use of various iOS gestures and UISlider # Import "RootViewController. h" @ Interface RootViewController () @ Property (nonatomic, retain) UIImageView * aview; @ End @ Implementation RootViewController -(Id) initWithNibName :( NSString *)

How can we make swift and OC compatible hybrid development in a project ?, Swiftoc After Apple launched the swift language, many people worried that the OC would soon be replaced, but Apple said it would not abandon the OC within two years. But now

IOS review note 13: Common structBoth must contain the header file of Foundation. h.CG: CoreGraphics framework for short. The content starting with CG is declared in the Foundation framework, but not implemented.NS: NextStep1. Range of nsange1

Ios uploads files through postBecause iOS cannot upload images through html forms, to upload images, you must implement http requests instead of using post in html forms in other languages.The format of the http post request for uploading images is

IOS development-listening for changes in keyboard height In a recent project, there is a comment forwarding function similar to that in Weibo. At the bottom of the screen, there is an input box that uses textView, when textView becomes the first

IOS -- Singleton design mode (excerpt, non-original) in Swift development, iosswift Recently, I have developed a small application and encountered some common Singleton modes in Objective-c, but there are some differences in swift, I tried to find

ZLMusic imitates the source code of the Baidu music application project and zlmusic Baidu music   Func stopPlayMusic () {if (self. isStop = true) {self. player. pause () btn. setTitle ("play", forState: UIControlState. normal) // var paused = player.

[Arrangement] Setter: assign, copy, retain, weak, and strong of Property in Object-C, differences and connections between object-csetterDuring iOS programming, we often see some modifiers before some attributes, such as copy and retain. These

"OC" Point syntax and member variable scope, js variable scopeI. Point syntax(1) Recognition point syntaxDeclare a Person class: 1 #import 2 3 @interface Person : NSObject 4 { 5 int _age; 6 NSString *_name; 7 } 8 9 -

"OC" constructor and classification, and "oc" ConstructorI. Constructor(1) Call of Constructor Create an available object: Person * p = [Person new]; The new method is actually divided into two steps to create an object: 1) Use the + alloc method to

IOS deletes AutoLayout Sometimes, we need to dynamically change a value in AutoLayout in the View, such as moving the x value or y value. What should we do?     ZLLayoutConstraint is used as the alias NSLayoutConstraint. Typedef NSLayoutConstraint

IOS development-Object-C Block implementation method, ios-object-c We can regard Block as a closure function, which can access external variables and local variables, but the external variables cannot be modified by default. You can use it for

IOS project is the top source code of an application implemented with swift, iosswift Top background Swift versionIos 8/iPhone 5S adaptationThere is a login here. If you want to test it, you can use this account,Account: 18868879362 password: 420562

Three features such as Objective-C: encapsulation, inheritance, and polymorphism (1) As we all know, classes in Object-Oriented Programming have three major features: inheritance, encapsulation, and polymorphism. This is also a topic that must be

IOS development-Disable/collapse keyboard method summary, ios collapse As IOS developers, they often need to deal with forms. Therefore, I have summarized the keyboard collapse method. There are three methods for IOS to collapse the keyboard (if

Upgrade IOS applications and ios applicationsIOS app upgrade process Introduction: When iosmobile app upgrade, open the Server HTML file (ucab.html file in this document)-click online installation-open the plist file (ucab in this article. plist

OC processing. Net Json time format, ocjson   The json time format received by the server is/Date (xxxxxxxxxxxxxxx + xxxx)/. The first half is the millionSecs from January 1, 1970, and the second half is the time zone. We need to align and convert.

Truncates the rectangular area in the center of the screen based on the size, and truncates the screen rectangle based on the size. Code: -(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view. UIImageView *