IOS

IOS preprocessing statement and ios preprocessing statement The source code computer in the program cannot be identified. You need to convert the written code into 0 or 1 binary code before the computer can recognize it. It takes two steps to

27th-day notes for learning in iOS (UIButton-UIImageView Introduction), and calculating the uiimage size in ios IOS Learning (UI) knowledge point sorting 1. Introduction to UIButton1) concept: UIButton is a common control that triggers corresponding

Understanding of MVC design pattern and iosmvc Design Pattern for iOS Learning In cocoa ProgrammingModel-View-Controller(MVC) pattern.   Understanding the concept of MVC is crucial to cocoa program development.   I. MVC Concept MVC is

IOS stage learning 30th-day notes (UIViewController-Delegate (proxy), iosuiviewcontroller IOS Learning (UI) knowledge point sorting   1. Introduction to UIViewController1) concept: UIViewController is a view controller, which is used to manage and

IOS learning-animation effect implementation // // ViewController. m // UI-animation exercises // // Created by jzq_macon 15/7/22. // Copyright (c) jzq_mac. All rights reserved. //   # Import ViewController. h   @ Interface ViewController

One of IOS development cell customization methods The first method is to directly write an inherited UITableViewCell. Then add the subview dynamically. Procedure: 1. Create a new cell class that inherits UITableViewCell 2. Define attributes in this

IOS development case study: Judging Chinese zodiac by year To write this blog, first of all, I would like to thank Lin Yongjian, who wrote this blog after reading Miss Lin's video course. Thank you very much. The requirement is as follows: Enter

Thread security for iOS Singleton In multithreading, the implementation of a singleton should also consider thread security issues. 1. Implemented through GCD dispatch_once:   @ Property (nonatomic, strong) NSString * str;     -(NSString *)

IOS development-NSTimerThree methods for creating timer objects 1. Create a timer and specify it to a default runloop mode + (NSTimer *) scheduledTimerWithTimeInterval :( NSTimeInterval) ti invocation :( NSInvocation *) invocation repeats :( BOOL)

IOS network-05-AFNetwoking principle and Common OperationsSix modules of AFN NSURLConnection further encapsulates NSURLConnection, including the following core classes: AFURLConnectionOperation AFHTTPRequestOperationManager AFHTTPRequestOperation

IOS development and learning records: 1st days familiar with common Mac shortcuts, iosmac Blog Introduction: I will learn about IOS development from today, and will record my learning track and experience in the next time. I will open this blog

Create a button in the iOS for loop. The width of the button is based on the text above.Recently, you need to use a tab to create a demo.The label size is adjusted based on the text above. The text is automatically wrapped according to the data

IOS device Information Retrieval 1. Get device informationUIDevice * device = [[UIDevice alloc] init];NSString * name = device. name;NSString * model = device. model; // device type, such as Apple or itouchNSString * type = device. localizedModel; //

IOS learning notes for 25th days (Introduction to iOS sandbox mechanism), ios sandbox Knowledge points of iOS Learning (oc language) I. Introduction to iOS sandbox Mechanism   1) concept: Every ios app has its own sandbox. the sandbox is the

Objective-C Knowledge Summary (1), objective-c Knowledge Summary Objective-C (OC) is a language for developing Mac OS X and iOS applications. Currently, the latest swift language can also be used to develop applications on the above two

IOS _ network request_proxy Method # Pragma mark-network request proxy method (asynchronous)-(IBAction) DelegateButtonDidClicked :( UIButton *) sender {// 1. Splice urlString. The URL must contain http: // NSString * urlString = @

IOS_POST _ network request Synchronous post request # Pragma mark-synchronous post request-(IBAction) POSTSynButtonDidClicked :( UIButton *) sender {// 1. concatenate baseUrlString NSString * baseUrlString = @ brief // 2. Create a URL Based on the

Storyboard, storyboard tutorial I. Dynamic code rewriting 1. Generally, the main. storyboard is automatically executed when the program is started. You can also rewrite it in AppDelegate. -(BOOL) application :( UIApplication *) application

IOS swift uses xib to draw a UIView Objective: To draw a UIView using xib and call it in a ViewController. Three files: ViewController. swift DemoView. swift DemoView. xib   First, you can focus on DemoView. xib. Do not forget one of the UIView

Ios development-calculator Improvement #import extern double add(double x,double y);extern double subtract(double x,double y);extern double multiply(double x,double y);extern double divide(double x,double y); #import #import