kotlin ios development

int Main () 2 {3 printf ("Hello"); 4 return 0;5}This time you can run the program again, to see the effect of the operation, the effect is: on the screen output hello this string of content.And then you annotated the 3rd line of code.1 int Main () 2 {3 //printf ("Hello"); 4 return 0;5}Then run the program again and find that the previous Hello is not being printed on the screen. Description of the 3rd line of code is the function of: on the screen output hello this string of con

IOS development skills-making a ring progress bar and ios development skillsSeveral blogs have written about how to implement a ring progress bar. Most of them are implemented using Core Graph, which is a little complicated and inefficient. It is just a small progress bar, we certainly use the simplest and most efficie

IOS development and ios development tutorial Previously, we had a Positioning Project, similar to Didi chuxing. The background must be continuously located. Baidu map is selected here, but in the background for continuous positioning, the previous simple settings are as follows: However, after testing, we found that t

Questions about iOS development (9) and questions about ios development 101 compilation error: ld: library notfound for-lPods This error is often returned when cocoaPods is used in the project (usually when it is release ). This is because after pod install, cocoaPods will create a new workspace. You must close the pro

I think this packaging framework is a relatively important function that can be used to do things: (1) Packaging functional modules, such as the more mature function modules packaged into a package, and then their own or other colleagues to use more convenient. (2) Packaging projects, sometimes encountered this situation, that is, a company to find two development companies to do two projects, and then ask one of their projects nested into another p

Multithreading and network development for iOS: multithreading GCD and ios multithreading development gcd Master haomeng is devoted to his contribution and respects the author's Labor achievements. Do not repost them. If the article is helpful to you, you are welcome to donate to the author, support haomeng master, the

"In iOS development, animations are cheap"First, the end-to-end animationcode example: Beginanimations indicates that subsequent code will "participate in" the animation [UIView beginanimations:nil context:nil];//Set the duration of the animation [UIView SETANIMATIONDURATION:2.0]; Self.headImageView.bounds = rect; Commitanimations, commits and generates animations for all animations aft

IOS development agent design tips and ios development tips 1. Tips on proxy Object Design When designing a class, you need to obtain the required dynamic data from the outside through proxy and protocol. There are two methods to design proxy here. Declare a proxy attribute in the class you designed Then, wh

After iOS 6, Google map is no longer used, but Apple's own map is used, but the API programming interface does not change much. Developers can develop map applications without learning many new things. Therefore, this section also applies to running map application development on iOS5. Use Map Kit API in iOS applications to develop Map applications. Its core is

Summary of various kinky techniques in iOS development (II.)First, the author of the computer installed on the Mac appOne: Internal implementation (SWIFT) for :1 var g = array.generate ()2while let obj = g.next () {345print (obj)}6 Two: Map/fileter/reduce Map Map method, which gets a closure expression as its only parameter. Each element in the array is called once for the closure functio

Summary of various kinky techniques in iOS development (iv)One: @autoclosure a block of code alive an expression is automatically encapsulated into a closureFunc logiftrue (predicate: ()-Bool) { if predicate () { print ("True " ) Call Logiftrue ({return 2 > 1}) shorthand: logiftrue{2 > 1} You can omit {} directly using Logiftrue (2>1) when predicate plus @autoclosure call.Tw

Mathematical functions in iOS development and mathematical functions in iOS development In iOS development... We often involve some algorithms... To save some time... Let the APP be developed quickly... We need to have a certain u

Ios development-get and post, ios development-getpost Example: drag two controls textField and UIButton on the storyboard to connect them (userNameText, password, and login )) @ Interface ViewController () @ Property (nonatomic, weak) IBOutlet UITextField * userNameText; @ Property (nonatomic, weak) IBOutlet UITextFiel

IOS development, ios development In actual development, we may need to add custom attributes to a file, or add information about the file to the attributes of the file, this can be used for the next read. This article will introduce the "tool class for expanding file attribu

Custom UITabBarController for IOS development and custom tabbar for ios development UITabBarController is a view controller that is often used in development. However, the default UITabBarController does not fully meet our needs. Therefore, we often need to customize a UITa

[IOS development Basics] [C Language] 02, ios development 02 I. Functions (1) What is a function? Any C language program is composed of one or more program segments (applets), each of which has its own functions. We generally call these segments "functions ". (2) Function Definition Objective: To encapsulate a common

IOS development-UI (1) common controls, ios development-ui controls From here on is the UI Knowledge point: 1. Common basic IOS controls 2. UITouch ====================================== Common basic controls 1. UISegmentedControl: segment controller 1) Creation Method -(Id

iOS Development UI Basics-ios Some tips for using Xcode in developmentFirst, the use of shortcut keysThe following shortcut keys are commonly used:NewShift + CMD + N New ProjectCMD + N New fileViewOption + cmd + ENTER to open assistant editorCMD + return display main windowcmd + 0 Navigation windowOption + cmd + 0 tool windowSwitch between. M H control + cmd + u

[IOS development] Object, ios development object . 1. One-dimensional array 1. One-dimensional array Definition (1) array Definition Array Definition Format:Type arrayName [len]; --Default Initialization: After the array is set, if the int array is initialized to 0 by default, if it is a floating point type, the de

IOS development-Get local video files, ios development get videos The following describes the implementation process.First.Figure 1. iTunes Figure 2. iTunes Figure 3. Run Now, we can see the effect through the image.Functions: allows you to import files through iTunes. You can view all files in the sandbox. Implemen