IOS

SpriteBuilder study NOTE 2: spritebuilder Chapter 3 Controlling and Scrolling @implementation GameScene { __weak CCNode *_levelNode; __weak CCPhysicsNode *_physicalNode; __weak CCNode *_playerNode; __weak CCNode *_backgroundNode;} Note

IOS AutoLayout Automatic Layout intermediate development tutorial (5)-Modify the constraint value and delay Loading How do I modify the value of the autolayout constraint?   Currently, I know five methods. modify the frame (sometimes it may not work,

Convert color to UIImage, and convert color to UIImage Image:   Code: -(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. // Create Image UIImageView * imageView = [[UIImageView

[IOS multithreading & Network, ios MultithreadingA. Basic XML knowledge1. What is xml?Extensible Markup Language"Like JSON, it is also a common data format for interaction.It is also called XML Document)XML example 2. xml syntax a common XML

When IOS does not enable the telephone service, it can respond to the server's push messages to receive the server's push messages. When performing Instant Messaging (based on the xmpp framework), you can press the Home Key to return to the

Custom class implementation protocol, custom nscopying Objective: To customize a Person class and implement copy. First, define a Person class. Because it is a custom class, to support the copy method, you need to implement the

IOS checks whether the app has the permission to use the camera. IOS checks whether the app has the permission to use the camera. NSString * mediaType = AVMediaTypeVideo; AVAuthorizationStatus authStatus =

Ios album operation ALAssetsLibrary 1. The ALAssetsLibrary instance provides us with the function of getting pictures and videos in an album (photo app. In ios8 photos framework, ALAssetsLibrary is replaced. When using ALAssetsLibrary, We need to

[IOS UI advanced, iosui advanced1. UIView transition Animation   1 // 2 // ViewController. m 3 // UIViewAnimationTest 4 // 5 // Created by hellovoidworld on 15/1/16. 6 // Copyright (c) 2015 hellovoidworld. all rights reserved. 7 // 8 9 # import

Ios-page value transfer (protocol, Singleton) Define a protocol on the first page and define a protocol method to obtain the return value from the second page to the first page. # Import # Pragma mark defines a protocol for parameter transfer@

Handling iOS detection version updates If we want to detect updates to the app version, we must obtain the version information of the currently running app version and the latest version released on the appstore. The current running version can be

Singleton implementation (Singleton macro), implementation (macro) 1. What is a Singleton? A singleton is a class. Each creation is the same object. That is to say, it can only be instantiated once. 2. How to ensure that each creation is the same

Ios (Quartz 2D drawing) Various plotting methods and camera usage   I: For more information, see www.bkjia.com. The following describes how to use Quartz 2D drawing to implement the graphic board function. In the. m file, dog is implemented as shown

Ios development-KVO analysis, ios-kvo Analysis  Target: Listen to what is added to the NSMutableArray object   The Code is as follows:C code -(Void) viewDidLoad { [Super viewDidLoad]; Self. dataArray = [NSMutableArray arrayWithObject: @ "1"]; [Self

Ios array Traversal method Currently, seven methods are available. // The first [arr enumerateObjectsUsingBlock: ^ (id obj, NSUInteger idx, BOOL * stop) {NSLog (@ "% ld, % @", idx, [arr objectAtIndex: idx]) ;}]; // The second dispatch_apply ([arr

Ios development-cocos2d-x adaptation iphone6 I haven't gotten a cocos2d-x for a long time. Today, I had a hard time playing the game again. Simply put, the solution for iPhone 5 adaptation is stupid, but simple.   1. Add the following code to the

My thoughts on Objective-C series articles and persistence in blogging, objective-c Thoughts I have been developing iOS for some time, and I have also launched my own App products. I am still posting a technical blog to summarize what I have learned.

IOS client Coding project record (1): ios client coding project 1: The Clear button appears in UITextField settings. Self. textField. clearButtonMode = UITextFieldViewModeWhileEditing; Description: UITextField. clearButtonMode: clears the input

Some Iphone sqlite packaging classes, iphonesqlite I believe that many iphone Sqlite will not directly use the C method, either wrap a layer of Object c access method or use CoreData. Below I will sort out some of the currently closed Sqlite

Swift Tour Summary (1), swifttour Let Constant Var Variable let implicitInteger = 70let implicitDouble = 70.0let explicitDouble: Double = 70   The so-called type implications   To include value in strings: let fruitSummary = "I have \(apples +