IOS

GCD for iOS development and gcd for ios developmentUse GCD for iOS development (1) Use GCD to create an asynchronous task # Pragma mark-use GCD to create an asynchronous task-(void) createAsyncTask {// create an asynchronous task // parameter 1:

Use of the AFNetworking open-source library for IOS development, iosafnetworkingUse of AFNetworking open source library for IOS development1. Introduction Common methods for processing network requests (1) NSURLConnection/NSURLSession (2)

Block for IOS development and iosblockBlock1. what is block and Its Role in IOS development Common UI development and network functions implement callback. The button event processing method is the callback method, and the callback processing after

IOS code writing style SpecificationPoint mark syntaxAttribute and power methods (multiple calls are the same as the results returned by one call) use the dot mark syntax for access. Otherwise, use the square brackets mark syntax.Good style: View.

Unity3d ios plug-in development Unity3D is a very powerful cross-platform game engine, but it still inevitably needs to access some features of the platform. Unity3D does not create APIs for all aspects of the Platform, especially new functions. At

Pass value for IOS-pass value by proxy, block, nsicationicationcenter, nsicationicationcenter 1. Use a proxy to transmit values, that is, use a proxy to communicate. Interface file: # Import   @ Protocol Cdelegate   -(Void) change :( NSString *)

IOS interview questions1. The answer to the definition of MAX or MIN. cainiao is as follows: #define MAX(X,Y) X>Y ? X : Y Verification:When MAX (1 = 3, 2) is input, the expected result is 2, but the actual result is 0?The answer is as

IOS Study Notes-UINavgationController,Creating Navigation Controllers -(Instancetype) initWithRootViewController :( UIViewController *)rootViewController Parameter: UIViewController   Method: initWithNavigationBarClass: toolbarClassInitializes and

IOS implements automatic cyclic rolling advertisement-ScrollView optimization and Encapsulation I. Problem Analysis In many apps, we will see a circular scrolling view, such as an advertisement. In fact, it is not difficult to

UI -- UIPickerView and UIDatePicker summary, uidatepicker The main method for returning to the top UIPickerView and the correction of the city Selector UIPickerView has only two data source methods. To completely display the PickerView, you must use

IOS implements automatic cyclic rolling advertisement-ScrollView optimization and encapsulation, and ios-scrollview I. Problem Analysis In many apps, we will see a circular scrolling view, such as an advertisement. In fact, it is not

Info. plist, pch, and four objects (UIApplication, UIApplicationDelegate, UIWindow, UIViewController), uiviewcontroller Contents 1. Program configuration file info. plist, global header file pch 2. Application Object UIApplication Introduction

IOS client Coding project record (4), ios client coding project 1: Open Xcode and crash. An exception occurs when loading a database. For example,/Applications/Xcode. app/Contents/Developer/Toolchains/XcodeDefault. xctoolchain/usr/lib/libclang.

Common xmpp errors 1 and common xmpp errors # Pragma mark-Incorrect password, authentication failed-(void) xmppStream :( XMPPStream *) sender didNotAuthenticate :( DDXMLElement *) error {NSLog (@ "authentication failed % @", error);} // Cause:

IosGCD thread-safe Resource Sharing The magic way is to lock. Let you get through one by one. Don't worry, wait in the queue and buy steamed bread. Alas, who told you not to worry? Look at you.   // // ViewController. m // Thread security // //

Using semi-transparent fuzzy effects in iOS development In iOS development, we have a lot of options for translucent blur effects. Below are some common methods or tools. 0. Core Image As a leader in design and experience, apple must have excellent

IOS8 UIAlertController prompt box In IOS8, Apple integrates UIActionSheet and UIAlertView into an interface UIAlertController. The original view is displayed on the window view. Now it is changed to controller, and the display mode is changed to

UITextView for basic ios controls The multi-line text control UITextView inherits the UIScrollView: UIView control, which has a scroll bar by default. Both UITextView and UITextField are text editing and display controls. Their functions and

Event Processing in iOS development (2)-event transfer, responder chain-  Introduction to event transfer during event processing: After a touch event occurs, the system adds the event to an event managed by the UIApplication.QueueUIApplication

Ios UIScrollView cannot respond to the TouchesBegin: Event Solution 1: @ Property MyScrollView * scrollView; 2: Add category: MyScrollView + Touch to MyScrollView 3: implement the following three methods in the category: @ Implementation