ios programming for dummies

Exploring multi-thread programming in iOS development: Grand Central Dispatch details, multi-thread programming dispatch I have published a blog about multithreading development in iOS, which introduces NSThread, Operation queue, and GCD. Today, we will give a comprehensive summary of how GCD is used. The history and b

icloud key value data storage design icloud key value data storage programming instance, the screen has two switch controls, the left is the device 1 click the "Set icloud Data" button to save the control state to the icloud server. The image on the right is the device 2 screen, and after a few seconds the device 2 receives a change notification. Configure Xcode Engineering Using Xcode to create an iOS

The runtime is programmed to resemble Java-like reflection. The comparison between runtime programming and Java reflection is as follows: 1. Features that can be implemented at the same point: getting class information, property set fetching, dynamic loading of classes (nsclassfromstring (@ "ClassName")), dynamic invocation of methodshere are the related usage methods that are involved in iOS　Dynamic loadin

1. Brief Introduction: 1.1 iOS has three kinds of multithreaded programming technology, namely: 1., Nsthread 2, Cocoa Nsoperation (iOS multithreaded programming nsoperation and the use of Nsoperationqueue) 3, GCD full name: Grand Dispatch (iOS multithreaded

IOS 64-bit programming and ios64-bit Programming1. Reject basic data types and implicit conversions 1) Basic Data Types In 64-Bit mode, the basic type of long is changed from 4 bytes to 8 bytes. Take a look at the sizeof function in the program, and try not to use the basic data type, instead of the object type: Int-> NSInteger Unsigned-> NSUInteger Float-> CGFloat Animation time-> NSTimeInterval ...

method to completely stop event reception and distribution. The Endingnoringinteractionevents method is used to restore the program to receive and distribute events. If you want the view to receive multi-touch, you need to set its Multipletouchenabled property to Yes, which is no by default, that is, the view defaults to not receiving multi-touch. After understanding the touch, event, and responder in the previous "IOS

Qt for iOS, mixed programming of Qt and Objective C, iosobjective Recently, some friends who use Qt asked about Qt for iOS, because I have little experience in this field and cannot write system articles. I am very sorry, I cannot give a satisfactory answer. I suggest you go to Jason's Home. There is also a link in the left sidebar of my blog. He provides some v

Objective In the multithreaded introduction, I've already explained that in order to improve the smoothness of the interface and the user experience. It is important that you do not block the main thread by putting time-consuming operations into other threads.There are 3 kinds of multithreaded programming methods in iOS: Nsthread Grand centeral Dispatch (GCD) nsoperation and Nsoperationqueue

Recently, there are several friends using QT to ask Qt for iOS things, because I have very little experience in this area, writing system articles, very sorry, can not give a satisfactory answer, recommend everyone to see Jason's Home, in my blog left sidebar link also has, he provided Qt Some of the most interesting articles for IOS, and are practice-based, and his app is already online in the app Store.As

(kbfrmwillchange:) Name: Uikeyboardwillchangeframenotificationobject:nil]; } -(void) Kbfrmwillchange: (nsnotification *) noti{ NSLog (@ "%@", noti.userinfo); Gets the height of the window cgfloat windowh =[uiscreen mainscreen].bounds.size.height; Keyboard end of frm cgrect kbendfrm =[noti.userinfo[uikeyboardframeenduserinfokey] cgrectvalue]; Gets the Y-value of the keyboard end cgfloat kbendy =kbendfrm.origin.y; Self.inputViewConstraint.constant = Windowh-kbendy; } Text/Left h

IOS Sprite Kit Tutorial Programming and Xcode Introduction Xcode interface IntroductionA Xcode project consists of a number of files, such as code files, resource files, and so on. Xcode helps developers manage these files. Therefore, Xcode's interface is also more complex, as shown in 1.40.Figure 1.40 Xcode's interfaceIn Figure 1.40, you can see that the Xcode interface can be roughly divided into 4 parts.

IOS network programming mode Summary IOS can use three types of api interfaces for network programming. The socket, stream, and url modes are used according to the abstract hierarchy. I. socket mode The socket network programming interface provided by

Original Title: iOS 6 programming pushing the limits Author: (US) ROB Napier mugunth Kumar [Translator's introduction] Translator: chen xiaoliang Wu Haifeng Deng Qiang Zhou Qingcheng series name: Turing Program Design Series Press: People's post and telecommunications Press ISBN: 9787115312181 Release Date: April 2013 published: 16: 1-1 category: Computer> Software and