Use block for Event Callback to simplify code, improve development efficiency, and block callback

Use block for Event Callback to simplify code, improve development efficiency, and block callback When we customize a view, we usually need to consider the encapsulation and reuse of the view. Therefore, how to callback the view event to the

[Code Note] font jitter animation and note jitter Animation

[Code Note] font jitter animation and note jitter Animation I ,. Ii. Code. ViewController. m # Import "ViewController. h "@ interface ViewController () @ end @ implementation ViewController-(void) viewDidLoad {[super viewDidLoad]; // Do any

IOS monitors network status changes in real time and ios monitors the status in real time.

IOS monitors network status changes in real time and ios monitors the status in real time.   In network applications, you may need to monitor the network status of your devices in real time for two purposes: (1) let users know their network status

Va_start and va_end, va_startva_end

Va_start and va_end, va_startva_end This article describes how to use va_start and va_end. Before introducing these two macros, let's take a look at the usage and principle of passing function parameters in C: 1. In C, when we cannot list the types

IOS-talking about runtime mechanism 01-class and object internal structure, ios-01-

IOS-talking about runtime mechanism 01-class and object internal structure, ios-01- I have been studying the mechanism of runtime recently. I think there may be many people who are not quite clear about this problem, right? I will share with you my

IOS Chinese pinyin and iOS Chinese pinyin

IOS Chinese pinyin and iOS Chinese pinyin # Import @ interface NSString (Utils)/*** pinyin for Chinese characters ** @ return pinyin */-(NSString *) pinyin; @ end # import "NSString + Utils. h "@ implementation NSString (Utils) // pinyin-(NSString

Construction of non-high cells (1), construction of high Cells

Construction of non-high cells (1), construction of high Cells  I. interface Setup 1. determine the development mode. If the interface is fixed, you can use some of the content on the xib interface to be unfixed, and use the pure code cell Method

Cell business logic processing (Time formatting), cell business

Cell business logic processing (Time formatting), cell business 1. Click More. 1. Click More for project requirements. A box is displayed at the bottom.  2. How to bring up a box from the bottom? Two Methods: UIActionSheet, UIAlertController 2.1,

Non-high cell construction (2), high cell Construction

Non-high cell construction (2), high cell Construction  I. the commentView style set up by the commentView module is divided into two types: 1. xib build interface 1.1 because the comment style is basically the same, we can use the same xib to

Use SQLite3 to persistently save application data.

Use SQLite3 to persistently save application data. Preface SQL is a database query language used to access data and query, update, and manage relational database systems. It has become a standard language for mainstream databases because of its

IOS 2D game development framework SpriteKit -- & gt; continued (create enemy genie), iosspritekit --

IOS 2D game development framework SpriteKit --> continuous (create enemy genie), iosspritekit -- This includes the spritekit mentioned later. I will focus on a case. This case is a simple 2d airplane war game. Today, I am talking about creating a

Apple comes with map for positioning, Apple comes with map

Apple comes with map for positioning, Apple comes with map Recently, the project encountered a need for map positioning. Considering that the project will become larger with a third-party library, the official map will be used. This is the result

26th: do not declare attributes in the category. Do not declare attributes in the 26th categories.

26th: do not declare attributes in the category. Do not declare attributes in the 26th categories. AttributeIs the way to encapsulate data (see 6th ). Attributes only define instance variables and relatedAccess MethodThe"Syntactic sugar", So we

Xcode CoreData storage reports an error ., Xcodecoredata

Xcode CoreData storage reports an error ., Xcodecoredata Due to project interface changes, the previous CoreData field needs to be adjusted. Record the error process and solution. The procedure is as follows: 1. Add the fields to be adjusted in the *

Swift and swiftcode

Swift and swiftcode Swift-UITableView scaling Animation   Effect   Source code Https://github.com/YouXianMing/Swift-Animations /// HeaderViewTapAnimationController. swift // Swift-Animations /// Created by YouXianMing on 16/8/9. // Copyright©2016

LaunchScreen. storyboard

LaunchScreen. storyboard Xxcode is sometimes used in LaunchScreen. after the startup image is modified in the storyBoard, the running is ineffective and the screen is displayed in white. You can drag the plug-in to the storyboard to display the

[Code Note] string and note string

[Code Note] string and note string I. Code. -(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view. self. title = @ "string segmentation"; // parse a general string NSString * string = @ "One, Two, Three, Four";

Do you know that the card number and password can be used to clone the card and get the money?

Do you know that the card number and password can be used to clone the card and get the money? Sellers of scammers are mostly hiding in forums (figure) _ Netease Finance  Category: Information> Information List> livelihood information Tag: clone a

In-depth analysis of Alamofire source code in iOS development, iosalamofire

In-depth analysis of Alamofire source code in iOS development, iosalamofire The Alamofire source code version in today's blog is the latest3.4The version is used as an example. The previous Blog system detailed NSURLSession-related things. For more

Solve cocoapods installation failure, prompt requires Ruby version & gt; = 2.2.2, cocoapodsruby

Solve cocoapods installation failure, prompt requires Ruby version> = 2.2.2, cocoapodsruby The procedure is as follows: rvm install ruby-2.2 However, an error was reported. I forgot the details, but it was a problem with permissions and brew. Then I

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