IOS

[Code Note] adds a line to the middle of the phone number 400, and takes a note of 400 I. Code. -(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view. NSLog (@ "-- iphone -- % @", [self getNewPhoneStr1: @ "185023

IOS Memory Management MethodSort out some memory management methods to avoid Date Format Conversion If you want to useNSDateFormatterTo process many date formats, you should be careful to wait. As mentioned earlier, it can be reused at any

IOS plug-in Creation Overview We also use a lot of xcode plug-ins at ordinary times. Although there is no official support for plug-ins, third-party plug-ins can be loaded by default. Third-party plug-ins need to be stored in ~ In

Custom UITableViewCell enables left sliding multiple menu functions LeftSwipe and uitableviewcell sliding Happy New Year! To implement a small function, slide the menu to display the hidden function menu, first: Here we try to use three methods to

IOS-get the controller of the current View Use a classification, specifically:. H # Import @ Interface UIView (CurrentController)/** get the Controller object of the current View */-(UIViewController *) getCurrentViewController; @ end

IOS-get the ViewController displayed on the current screen // Obtain the ViewController-(UIViewController *) getCurrentVC {UIViewController * result = nil; UIWindow * window = [[UIApplication sharedApplication] keyWindow]; if (window. windowLevel! =

IOS TextField with keyboard movement, iostextfield This article introduces a simple and practical small method. I think everyone should be familiar with some of the effects of login. Today, we will introduce the implementation of TextField

IOS, ios9 The character attribute can be applied to attributed string text. Text/iOS _ success transcript (simplified author) Original article link: Success ". NSString * const NSFontAttributeName; (font) NSString * const identifier; (paragraph)

IOS APP icon settings The icon is a required component of the IOS package. If you do not provide icons of various sizes required by the program, the program may fail to pass verification during uploading and publishing. In order to take into account

Several Methods for parsing iOS json: NSJSONSerialization, JSONKit, SBJson, TouchJson, and jsonkitsbjson You can download related third-party class libraries from github.1. NSJSONSerialization The Code is as follows: -(Void) viewDidLoad {[super

IOS packaging (ipa package) 1. Open XCode, open the project file, select Product, and then click Archive. 2. Right-click Shoe In Finder 3. Right-click and select "show Package content" 4. Double-click the Products folder 5. Open iTunes, click

Use Objective-C to calculate the code running time and objective-c codeFirst: (the simplest NSDate) NSDate* tmpStartData = [NSDate date];//You code here...double deltaTime = [[NSDate date] timeIntervalSinceDate:tmpStartData];NSLog(@"cost time = %f",

IOS block, used as the callback function instead of the proxy, ios callback function Recently, I am working on a video conference project, but what I want to talk about today is basically irrelevant to the video. Let's create a button in a view and

IOS miscellaneous pen-12 (class de clever use of Frame operations), ios-12 In actual development, many times we are overwhelmed by frame control operations. For example, we only want to get the width of the view. We can do this: view. frame. size.

Multithreading and scratch What is a process before learning multithreading? A process is an application running in the system. Each process is independent, and each process runs in its dedicated and protected memory space. You can use the

[Swift] iOS UICollectionView: Cell size calculation trap, uicollectionviewcell   Preface Problems caused by unfamiliar APIs may occur if you take it for granted. Here we record the use of UICollectionView.   Statement You are welcome to repost, but

NSURLSession and nsurlsessiontaskIntroduction Now NSURLConnection will be used less and less during development, and iOS9 has abandoned NSURLConnection. Now the lowest version is generally compatible with iOS7, so it can also be used. Compared

[Code Note] obtains the number of days of the current month and the number of days of the Code note. I. Code. # Import "ViewController. h "@ interface ViewController () @ end @ implementation ViewController-(void) viewDidLoad {[super viewDidLoad];

In Xcode-ObjC, and Xcode-ObjC, You need to use a third-party library when creating a project recently. The usage Wizard of this library shows that after adding this library, you need to add the-ObjC flag to Other Linker Flags under Xcode Build

IOS -- Address Book (UITableViewController), uitableview address book This article mainly implements some functions of the address book (group name, index, group name) and so on: If you don't talk much about it, go first:   You need to import a