IOS

IOS limits the input length of TextField and iostextfield There are many ways to limit the length of textField input on the Internet, but I don't think it is perfect. To be precise, it can be said that it is not in line with the actual development

Xcode9 xib only supports iOS7.0 and later versions, xcode9xibios7.0 After Xcode is upgraded to version 9, the minimum version of xib is restricted. If no version is specified before, an error is returned, as shown below: In this case, according

Recommended for iOS excellent GitHub and iosgithub SJNetwork-highly encapsulated AFNetworking network framework Allows you to encapsulate and manage requests by using objects. You can read and clear the cache in batches, upload images, download in

[Reading Notes] iOS-strong and weak types, Reading Notes ios-type Id is a common type. OC uses id to represent any type of objects. It can be used as a placeholder to indicate that this is an uncertain type object or reference. Therefore, all

IOS-UIImageView common usage and multi-image animation playback, iosuiimageviewUIImageView // Create the object UIImageView * imageView = [[UIImageView alloc] init]; // frame imageView. frame = self. view. bounds; // set the background imageView.

IOS-create UIWindow, and ios create uiwindow After the iOS program is started, the first attempt to create the control is UIWindow. Then, create the view of the controller and add the view of the Controller to the UIWindow. APPdelegate. m -(BOOL)

Ios custom message prompt box, ios custom message Custom prompt box, automatically disappears 3 seconds later. Such as display effect. Code loading in the prompt box: -(Void) viewDidLoad {[super viewDidLoad]; // change the view background color to

General Usage of AFNetworking and afnetworking AFNetworking is a powerful network library for iOS, macOS, watchOS, and tvOS. It is built on the base URL loading system, extends the powerful advanced network abstraction, and builds it into Cocoa. It

IOS recognizes and depicts the QR code border, and ios depicts the border OpenCV can be used to identify the QR code and describe its border,How can I change to an apple AVFoundation for scanning and how can I draw the border of a QR code?We know

Use OCLint and Sonar for iOS code analysis and quality management, oclintios OCLint is a powerful static code analysis tool that can be used to improve code quality and find potential bugs, mainly for Static Analysis of c, c ++ and

Objective-C Loops, objective-cloops There may be a situation, when you need to execute a block of code several number of times. in general, statements are executed sequentially: The first statement in a function is executed first, followed by the

(0075) errors and solutions for using OpenSSL in cocoapods for iOS development: cocoapodsopensslScenario Description: When we integrated OpenSSL with cocoapods today, the following error occurs:Pod 'openssl'Then the terminal will report: The 'pods-

IOS Learning -- get the current top-level ViewController and iosviewcontroller During iOS development, we often need to obtain the ViewController of the current page, and then use ViewController to perform some operations, such as displaying a

[Reading Notes] iOS-public platform construction and development secrets, Reading Notes ios- 1. Public platform. 1. "small individuals also have their own brands", which is an official advertisement of the public platform. 2. There is no

IOS: multimedia (18-01-25), ios multimedia 18-01-25 1. Audio 2. Video 1, 2. AVPlayer   1. Audio         2. Video 1,     2. AVPlayer 0) write in front AVPlayer mainly includes AVPlayer, AVPlayerItem, and AVPlayerLayer, which correspond to Controller

IOS: calculate the time difference between the two. ios calculates the time difference between the two.UIButton * nameButton = [UIButton buttonWithType: UIButtonTypeCustom]; NameButton. frame = CGRectMake (0,200, self. view. frame. size. width, 100

IOS-json File Analysis Methods: ios-json1. Engineering Drawing. Ii. Code. # Import "ViewController. h" # Import "SBJson. h" @ Interface ViewController () @ End @ Implementation ViewController -(Void) viewDidLoad { [Super viewDidLoad]; // Do any

UITextField Memory leakage on iOS 11, uitextfieldios MLeaksFinder is used for project optimization and performance check. When the memory leakage of interface elements is checked, memory leakage occurs when you exit the logon interface. The print

IOS-Runtime: shortcuts to page Jump, ios-runtime jumpPreface During the webpage jump, if the current class is not UIViewcontroller (which is represented by VC below), will you write a proxy or block it to the VC to pass the information, and then

IOS development: fixed the problem of loading gif without display after SDWebImage4.0. iossdwebimage4.0 Previous usage UIImageView *imgView = [UIImageView new]; imgView.contentMode = UIViewContentModeScaleAspectFit; imgView.frame =