IOS-random name or lottery game implementation

IOS-random name or lottery game implementation     # Import ViewController. h   @ Interface ViewController () { NSMutableArray * nameList; UILabel * label; Nstmer * timer; } @ End   @ Implementation ViewController   -(Void) viewDidLoad { [Super

Teach you how to use Size Class and sizeclass

Teach you how to use Size Class and sizeclass In iOS8, we no longer need to create multiple xib files on a page to adapt to different types of screens, now we can put the adaptation of various screen sizes in one file, and then we can customize

CocoaPods, cocoapods

CocoaPods, cocoapods Facilitate management of numerous third-party libraries (automatic configuration of relevant information) and provide dynamic updates (using Terminal Operations) Install tools first sudo gem install cocoapods Then we need to

IOS-Precautions for using in-app payment, ios-Precautions

IOS-Precautions for using in-app payment, ios-Precautions I. iOS development. If the purchase is successful, we need to send the credential to the server for verification. In consideration of network exceptions, the sending credential operation on

Commonly used colors and their corresponding color values in iOS development.

Commonly used colors and their corresponding color values in iOS development.   R G B Value   R G B Value   R G B Value Black 0 0 0 #000000 Yellow 255 255 0 #

Ios ui basics 05 and iosui05

Ios ui basics 05 and iosui05 UIScrollView UIScrollView procedure 1. Create UIScrollView 2. Add the content to be displayed to UIScrollView. 3. Set the rolling range (contentSize) of UIScrollView) Note: If you want

UIScrollView, UIPageControl, uiscrollview

UIScrollView, UIPageControl, uiscrollview       # Import   @ Interface ViewController: UIViewController     @ End   # Import "ViewController. h"   @ Interface ViewController ()   @ End   @ Implementation ViewController   -(Void) viewDidLoad

Bitcoin wallet application breadwallet source code V1.0, bit breadwallet

Bitcoin wallet application breadwallet source code V1.0, bit breadwallet Breadwallet is a secure, reliable, and convenient bitcoin wallet that protects users from malware and common security issues in other applications and fully utilizes the

IOS stage study 31st-day notes (UINavigationBar Introduction), iosuinavigationbar

IOS stage study 31st-day notes (UINavigationBar Introduction), iosuinavigationbar IOS Learning (UI) knowledge point sorting   I. Introduction to UINavigationBar1) concept: UINavigationBar is a class object used to define buttons in the navigation

IOS Network -- NSURLCache sets the network request cache and iosnsurlcache

IOS Network -- NSURLCache sets the network request cache and iosnsurlcache Today, I checked the HTTP protocol and saw the cache-control in the response Header. So I went into some in-depth research. I found a class I ignored in iOS-NSURLCache class.

Objective-C -- Block, objective-cblock

Objective-C -- Block, objective-cblock In fact, the OC Block function is similar to the function pointer in C language and the closure in js. You can operate a code block as a variable with its own variables and scopes. Let's take a brief look at

CoreText and coretext

CoreText and coretext I. Introduction to basic knowledge1. Character and Glyphs) An important process of text display in the typographical system is the conversion from a character to a font. A character is an element of the information, and a font

IOS UI basics 03, iosui03

IOS UI basics 03, iosui03 Plist File Root: What type of data is storedIf the root is an array, all items in the plist array will be read from the file in the future. Each item in the plist array represents the type of an element item in the

IOS code custom cell example

IOS code custom cell example The base color and yellow color are the key points for custom cell codes. Start with these points.   MyCell. h   # Import   @ Interface MyCell: UITableViewCell @ Property (nonatomic, strong) UILabel * ageLabel; @

One way to solve the EXC_BAD_ACCESS error -- NSZombieEnabled), excbadaccess

One way to solve the EXC_BAD_ACCESS error -- NSZombieEnabled (convert), excbadaccess Crash is often caused by EXC_BAD_ACCESS errors during iOS program development. When such errors occur, Xcode will not give us too much information to locate the

IOSQuartz2D-02-draw cool download progress bars

IOSQuartz2D-02-draw cool download progress bars Implementation To implement plotting, you usually need to define a subclass of UIView, override the parent class's-(void) drawRect :( CGRect) rect method, to display the download progress, you only

IOS text attribute dictionary

IOS text attribute dictionary During iOS development, it is believed that the parameter is a NSDictionary dictionary when the font, color, underline, and other attributes are required. But which key values are correct in the dictionary? Let's

IOS UI03_UIViewController View Controller

IOS UI03_UIViewController View Controller // // AppDelegate. m // UI03_UIViewController View Controller // // Created by dllo on 15/7/31. // Copyright (c) 2015 zhozhicheng. All rights reserved. //   # Import AppDelegate. h # Import

IOS UI basics 01 and iosui01

IOS UI basics 01 and iosui01 Controller 1. What is a controller? Any class inherited from UIViewController is called a controller. 2. Role of the Controller: Manage the UI interface (responsible for managing the creation of the UI

IOS multithreading-GCD, iosgcd

IOS multithreading-GCD, iosgcd What is GCD? GCD is Apple's new abstract C-layer-based API for multi-threaded programming. Combined with Block, GCD simplifies multi-threaded operations, making thread operations more secure and efficient. Before the

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