Encapsulation, inheritance, polymorphism, classification, and Objective-C polymorphism in objective-c

Encapsulation, inheritance, polymorphism, classification, and Objective-C polymorphism in objective-c Advantages of encapsulation: Benefits of inheritance: Notes for inheritance: Inheritance and combination: 1 @ interface Score: NSObject 2 {3 int _

IOS-use code to constrain the layout (Masonry), ios-masonry

IOS-use code to constrain the layout (Masonry), ios-masonry I. Introduction After learning the Xib and Storyboard of visual programming, LZ feels that the UI control is created and dragged directly. The size adaptation and constraints are added, and

Supplement: tableView optimization summary and tableview optimization Summary

Supplement: tableView optimization summary and tableview optimization Summary Summary of tableView Optimization Methods (Note: This is just my own summary. I hope you can correct me. Thank you) 1. cache the cell Row Height to facilitate second

IOS time personalized settings and ios personalized settings

IOS time personalized settings and ios personalized settings Currently, in many projects, the time is not displayed directly. In many cases, the words "just", "XX minutes ago" are displayed, and so on. How do they achieve this? 1. create an NSDate

Install chisel and chisel

Install chisel and chisel Github address Install homeBrew first ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"During this period, you may need to enter the password. Press enter and enter the

Create an iOS learning controller and an ios Controller

Create an iOS learning controller and an ios Controller This blog is a summary blog, which summarizes various methods for creating controllers and some operations that require attention.1. Create a controller through storyboard As I mentioned in my

IOS development-UIDynamic (Physical Simulation) is simple to use, ios-uidynamic

IOS development-UIDynamic (Physical Simulation) is simple to use, ios-uidynamic UIDynamic is a new technology introduced from IOS7 and is affiliated with the UIKit framework. We can think of it as a physical engine that can simulate and simulate

Feature source code (sector progress) and Delegate are used in open events, sector delegate

Feature source code (sector progress) and Delegate are used in open events, sector delegate 1: Slice progress view and Application First, create a slice view and input the progress value. #import @interface LHProgressView : UIView@property

[Code notes] Water Wave Effect, water wave of Code notes

[Code notes] Water Wave Effect, water wave of Code notes I ,. 2. Engineering Drawing. 3. Code. ViewController. h # Import @ interface ViewController: UIViewController @ end   ViewController. m # Import "ViewController. h "// Add the

Full customization of UITabBarViewController and mvcviewcontroller

Full customization of UITabBarViewController and mvcviewcontroller Custom UITabBarViewController   Effect     Source code TotalCustomTabBarController in https://github.com/YouXianMing/iOS-Project-Examples /// CustomTabBarViewController. h //

IOS app startup principle and ios app Principle

IOS app startup principle and ios app Principle I recently watched a video to learn about the startup principle of the application. Here I will share a blog with you and discuss it with you. If you have any additional or different comments, I can

Cocoapods error, cocoapods Error

Cocoapods error, cocoapods Error Error 0: Description: "pod don't forget to anonymize any private data ". The best solution to this problem is to upgrade or reinstall cocoapods. Refer:Pod install returning error Error 1: a conflicting

[Code notes] vertical chart, Code notes

[Code notes] vertical chart, Code notes I ,. 2. Engineering Drawing. 3. Code. RootViewController. h #import @interface RootViewController : UIViewController@end   RootViewController. m # Import "RootViewController. h "// Add the header file #

IOS IM development suggestions (4) How to Use UIMenuController, iosuimenucontroller

IOS IM development suggestions (4) How to Use UIMenuController, iosuimenucontroller This should be the last article in this series. I did not write a lot, but if I did not write it, it would never be good. You are welcome to contact us for error

IOS Address Book integration, compatible with iOS789 writing, with demo and iosios789

IOS Address Book integration, compatible with iOS789 writing, with demo and iosios789 Apple's address book functions are different in iOS7, iOS8, and iOS9. iOS7 and 8 use , but there are some changes to the proxy methods of the two system versions.

UI advanced jump system settings interface method, ui advanced

UI advanced jump system settings interface method, ui advanced Jump to the system settings page, for example, prompting users to open the location, Bluetooth or WIFI, reminding users to open the push or location permissions, etc. After iOS6, a third-

Layout and design of the QQ chat interface (IOS)-first season and first season of ios

Layout and design of the QQ chat interface (IOS)-first season and first season of ios The source file I wrote will be released in the second season ~, If you are interested in Baidu online storage, you can follow my blog updates and download them

[Code notes] vertical lines of text and code notes

[Code notes] vertical lines of text and code notes I. Code. -(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view. NSString * str = @ "hello"; NSMutableArray * arr = [[NSMutableArray alloc] init]; for (int I =

Swift: About delegate and swiftdelegate

Swift: About delegate and swiftdelegate In Cocoa development, the interface-delegate (protocol-delegate) mode is a common design pattern that runs through the entire Cocoa framework, it makes an indelible contribution to clearing the relationship

UIimageView GIF animation and uiimageviewgif Animation

UIimageView GIF animation and uiimageviewgif Animation 1. The Code is as follows (all annotations are available)   -(Void) viewDidLoad { [Super viewDidLoad]; UIImageView * bigImageView = [[UIImageView alloc] initWithFrame: CGRectMake (100,100,100,10

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