IOS

Runtime sorting and runtime sorting 1. Runtime is written in C and sink. For the C language, function calls determine which function to call during compilation. For OC functions, they are a dynamic call process. During compilation, they cannot

Access the SQLite database by using the Qt5 iOS app, qt5sqlite Development Environment:MacOS 10.12.1Xcode 8.1Qt 5.8 iPhone 6 S + iOS 10.1.1 Source code:I specified the database name in the Qt program to create a database. It runs normally in Win10,

On the cmake ios terminal, the following error occurs: iOS version not found, tested: [5.0; 5.1; 6.0; 6.1; 7.0; 8.3], cmakeios Check the code under the new mac, execute the sh script for creating the ios project, and prompt ios version not found on

Time in iOS animation development, ios animation DevelopmentOverview In an animation, we specify the animation duration. For example scaleAnimation.duration = self.config.appearDuration So how is this time defined? Is it absolute time?Hierarchical

Detailed explanation of adding, deleting, modifying, and querying iOS CoreData, ioscoredata Recently, I have been studying CoreData because I have learned and sorted it out for future use and reference. Currently, the project is developed using the

Interpretation of AppIcon icon settings and critical value of App memory warning, appiconapp Some people have asked the critical iOS memory warning value and some configuration information about AppIcon in the project. I believe that for new

About the disordered button order caused by modifying the built-in tabBarItem attribute during custom tabBar, tabbartabbaritemQuestions about Button Order disorder caused by modifying the built-in tabBarItem attribute during custom tabBar Test code:

Conversion of iOS dictionary or array and JSON string, and ios array json string   During interaction with the server, the iOS dictionary or array and JSON string are converted as follows: // Convert a dictionary or array to a JSON string +

IOS changes the webView text color, text size, and background color. In the delegate callback method of webView-(void) webViewDidFinishLoad :( UIWebView *) webView; write the following statement.   // Font size [WebView

[Code Note] string and note string I. Code. -(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view. self. title = @ "string segmentation"; // parse a general string NSString * string = @ "One, Two, Three, Four";

Set the navigation bar topic in IOS development and the navigation bar topic in ios development /*** The system calls this class for the first time (only one class is called once) */+ (void) initialize {// set the navigation bar topic

WebViewJavascriptBridge source code exploration-view the interaction process between OC and JS and between wkwebviewjs oc Today, I checked the source code of the third-party library WebViewJavascriptBridge that implements interaction between OC code

Use drawRect to implement a ruler. The drawRect method is used to implement a ruler selector. The demo is here: https://github.com/phelthas/lxmrulervieweffect. If the reuse problem is not considered, I feel that the simplest implementation method

Ii. Common Singleton (continuous update) in iOS development and ios development 1. UIApplication (application instance) Obtaining method: [UIApplication sharedApplication] Detailed: http://www.cnblogs.com/hissia/p/5678518.html   2.

IOS BUG: Unbalanced cballs to begin/end appearance transitions for ., unbalanced   The following error is reported when the custom TabBarController pushes a lower-level Controller: Unbalanced callto begin/end appearance transitions for . Some

Detailed use of Runtime in IOS, and use of runtimeios Because I used to write things in unknown notes, and I have never seen any of my articles, I will start to use the blog community to communicate with you today. Well, there are not so many

Personal summary, personal summary Push: supports remote push and local push. Remote push: As the name implies, it refers to the messages pushed from the apple server. This push requires the deveiceToken and UDID of the target device. The former

Several new iOS9 keywords (nonnull, nullable, null_resettable, _ null_unspecified), and ios9nonnull1. nonnull: it can be understood literally: it cannot be null (it is used to modify attributes, parameters of methods, and return values of

My first blog: [ToDoList] applet development, the first todolist I am a senior dog. This is my first blog. In May January this year, during the winter vacation, the school started to learn about IOS. During the holiday, the school started to work

Socket for iOS learning, iossocket Socket definition in Baidu encyclopedia Two programs on the network exchange data through a two-way communication connection. one end of the connection is called a socket. Description The original meaning of Socket