IOS

Software drawing (efficient drawing 13.1), software drawing 13.1 Software drawing TermsPlottingSoftware plotting is usually indicated in the context of Core Animation (that is, drawing not assisted by GPU ). In iOS, software plotting is usually

IOS Runtime principle and usage, iosruntime PrincipleRuntime Introduction Because Objc is a dynamic language, it always finds a way to delay some decision work from compilation connection to runtime. That is to say, only the compiler is not enough.

[Code notes] iOS-sorts arrays and notes ios-sorts Arrays I. Code. -(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. // directly sort the object NSSortDescriptor * descriptor =

Some pitfalls of AutoLayout: AutoLayout 1. Add constraints to a UIView. If you want it to be displayed at the bottom of the UITableView, but it is not displayed, it will appear at the top of the UITableView. Error code: 1 [self. tableView

IOS Event Response Chain (Responder Chain), iosresponder Overview In iOS, the view level is generally the parent view-> Add each seed view. At this time, a view (subview) has a button that requires interaction. But sometimes we will find that no

[Code Note] iOS-custom alertView, ios-custom alertview I ,. Ii. Code. ViewController. h #import @interface ViewController : UIViewController{ UIView *alertView;}@end   ViewController. m # Import "ViewController. h "@ interface ViewController () @

[Code Note] iOS-the height of the screen automatically varies according to the keyboard, and the height of the Code note ios-height I ,. Ii. Code. ViewController. h #import @interface ViewController : UIViewController@end   ViewController. m #

[Code Note] iOS-copyable label, ios-label I ,. 2. Engineering Drawing. 3. Code. ViewController. m #import "ViewController.h"#import "MKBeCopyLabel.h"@interface ViewController ()@end@implementation ViewController- (void)viewDidLoad { [super

[Code Note] iOS-generates random strings and notes ios-strings I. Code: -(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. NSLog (@ "--- generate random string --- % @", [self

Description & debugDescription & runtime (debug model in debug mode), describeDescription During development, many models are often used to load attributes. during development, debugging is often performed to check whether the attribute values in

Automatically adapt to H5 containers (UIViewView/WKWebView), generate long charts, prevent progress bars, and adapt ioswkwebview to h5 Some time ago, during the cool development of the Code, the designer Wang gave Zhang moubao the APP a feature to

Swift Study Notes (2): handle errors and swift Study Notes Directory: Do-catch Assertions Do-catch In Swift, throws can be used to throw exceptions during program execution, and do... catch can be used externally to catch exceptions

Change the font color of the battery bar-Zeng Xiaoyi and Zeng Xiaoyi First of all, the old one is black by default. Then add View controller-based status bar appearance to the info. plist file and change it to NO. Adding this section in the file

Add Cocoapods support and githubcoapods to the uploaded Github code.StartHere I will introduce it from the very beginning, including creating a project on Github and uploading the project to the final support for Cocoapods. The procedure is as

The popwindow is blocked by the meizu virtual key, and the popwindow virtual block In the previous project, we made a sharing function, called a third party of umeng, and the function was perfectly implemented and shared. However, during the test,

Upgrade Xcode or MacOS to compile iOS resources fork, Finder information, or similar detritus not allowed, xcodedetritus I haven't left my footprints on the Internet for a long time. Take a bubble. I recently upgraded Xcode. A problem occurred in

CocoaAsyncSocket + Protobuf handles packet sticking and packet splitting issues, cocoaasyncsocket sticks to packets In the previous article "ProtocolBuffer setup and demo for iOS", we shared the establishment of the environment. We used the famous

IOS simple canvas implementation, ios canvas    Design Requirements 1. Set the size and color of the paint brush. 2. Clear screen, undo, eraser, and photo import Functions 3. Save the painted image to the album.  Implementation 1. Paint Brush

In iOS, when FD_FullscreenPopViewController is used, the scrollView right slide cannot be used. scrollviewcontroller When we have scrollView in ViewController, we may encounter a right slide failure to respond to the returned gesture. the following

Notes on Aurora push Principle: Push is a persistent connection established on all Apple devices connected to an Apple Server. The concept of persistent connections is relative to short connections, persistent connections can send messages to