Handling iOS detection version updates

Handling iOS detection version updates If we want to detect updates to the app version, we must obtain the version information of the currently running app version and the latest version released on the appstore. The current running version can be

Constant definition for IOS quick development

Constant definition for IOS quick developmentIn IOS development, there are some methods that often need to be used, but there is a long method name, which leads to long code and tired of writing, we can solve these problems through macro definition.

UXSS vulnerability in UIWebView in IOS and its repair methods

UXSS vulnerability in UIWebView in IOS and its repair methods IOS developers often use UIWebView. Most of the time, they load external addresses, but sometimes they are used to load local html files. UIWebView follows the "same source" policy when

Use TouchID verification and ios8touchid verification in ios8.

Use TouchID verification and ios8touchid verification in ios8. In iOS8, developers can use APIs that open the Touch ID permission to third-party applications so that they can use Fingerprint Authentication in applications to complete user

Ios presentViewController: black screen after destinationView jump

Ios presentViewController: black screen after destinationView jump There is a button in viewA. After clicking it, it will jump to another page. Using the following code, viewB will be black and nothing will be

Request to refresh the UI after a network request

Request to refresh the UI after a network request A problem occurred while creating the project. The synchronization request cannot refresh the interface. Original assumption: In the synchronous request method, add a chrysanthemum before

IOS development-multi-Thread programming technology (Thread, Cocoa operations, GCD), multi-Thread programming cocoa

IOS development-multi-Thread programming technology (Thread, Cocoa operations, GCD), multi-Thread programming cocoa Multi-threaded programming is widely used in software development. I believe that multi-threaded tasks are no longer unfamiliar to

Get the keyboard height of iOS devices and the keyboard height of iOS devices

Get the keyboard height of iOS devices and the keyboard height of iOS devices Recently, I made a custom keyboard. First, I want to know the height of the various keyboards on iOS devices. Next I will explain how to get the height of the

[Use Xcode, use xcode

[Use Xcode, use xcodeA. Procedure1. apply for a developer account 2. register the machine as the development machine (1) generate the certificate request file (2) Upload the request file (3) generate the cer Certificate file :**. cer (4) download

[IOS UI advanced, iosui advanced

[IOS UI advanced, iosui advancedA. generation and transmission of eventsAfter a touch event occurs, the system adds the event to an event queue managed by UIApplication.UIApplication extracts the first event from the event queue and distributes the

Explanation of NSBundle, nsbundle

Explanation of NSBundle, nsbundle First, understand the concept. When an app is installed on a mobile phone or simulator, the entire project is packaged into a folder. If you need to find a specific file in the folder, NSBundle is used in the

[IOS UI advanced, iosui advanced

[IOS UI advanced, iosui advancedA. Gesture Recognition provided by the system1-(void) testTap {2 // create gesture reader 3 UITapGestureRecognizer * tapRec = [[using alloc] initWithTarget: self action: @ selector (tapRun :)]; 4 tapRec.

Singleton implementation (Singleton macro), implementation (macro)

Singleton implementation (Singleton macro), implementation (macro) 1. What is a Singleton? A singleton is a class. Each creation is the same object. That is to say, it can only be instantiated once. 2. How to ensure that each creation is the same

Notification Mechanism (concept), notification mechanism concept

Notification Mechanism (concept), notification mechanism concept 1. notification center) The notification center is a singleton class created using the following code. [NSNotificationCenter defaultCenter]; 2. Notification (NSNotification) // A

Notification NSNotication & notification center NSNoticationCenter, notication

Notification NSNotication & notification center NSNoticationCenter, notication @ Font-face {font-family: "Wingdings" ;}@ font-face {font-family: "" ;}@ font-face {font-family: "" ;}@ font-face {font-family: "@ ";}@ font-face {font-family: "Cambria" ;

CocoaAsyncSocketDemo, cocoaasyncsocket

CocoaAsyncSocketDemo, cocoaasyncsocket Engineering Drawing:   Code: ViewController. h # Import // Add the header file # import "AsyncSocket. h" @ interface ViewController: UIViewController @ end   ViewController. m -(Void) viewDidLoad {[super

Explanation of the functions of extern C and extern

Explanation of the functions of extern C and extern The main function of extern "C" is to call other C code correctly. After extern "C" is added, it indicates that the code of the compiler is compiled in C language instead of C ++. C ++ supports

IOS development detection device shake

IOS development detection device shake Two Methods for device shaking detection are described below: Method 1 First, add -(BOOL) application :( UIApplication *) application didfinishlaunchingwitexceptions :( NSDictionary *) launchOptions { //

IOS learning-positioning service 2 basic positioning

IOS learning-positioning service 2 basic positioning1. What is positioning mainly? 1. Obtain location-related data 2. Obtain Location Information As a result, I thought of the sight targeted by the Anti-Terrorism elites: 2 ...... How to locate

Local push for ios (push)

Local push for ios (push) There are two types of message notifications on iOS: Local Notification and Remote Notification ), these two notifications are designed to remind users of new things and attract users to re-open the application. Local push

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