kotlin ios development

[IOS development series] simple animation effects, ios development Animation CABasicAnimation has only three properties. FromValue toValue ByValue When you create a CABasicAnimation, you need to use-setFromValue and-setToValue to specify a start value and end value. When you add the basic animation to the layer, it sta

IOS development-implement the cache cleanup function and clear cache for ios development Mobile applications generally perform offline cache processing when processing network resources. The image cache is the most typical one. The popular offline cache framework is SDWebImage. However, the offline cache occupies the s

IOS development-basic implementation of the download tool function, ios development download Tool Today, we made a Demo of the download tool, that is, to download the specified file from the locally configured Apache server. This time, we download the html.mp4 file under the server root directory. By convention, we fir

Design and Implementation of the Bus card system for ios development, and ios development //// Main. m // Bus-Bus/* Bus card recharge system. There are two options: the first option is coin or banknote, and the second option is card recharge. The value of recharge is 20, 50, 100 */# import # Import #import "Card.h"@

Common property methods for UIbutton for iOS development, and uibutton for ios development Simple use of UIbutton (basically enough ). UIButton * myButton = [UIButton buttonWithType: UIButtonTypeCustom]; /* UIButtonTypeCustom = 0, // custom Style UIButtonTypeSystem NS_ENUM_AVAILABLE_IOS (7_0), // standard system button

Ios development-calculator improvement, ios development Calculator #import #import #include "MathOperation.h"double add(double x,double y){ return x + y;}double subtract(double x,double y){ return x - y;}double multiply(double x,double y){ return x * y;}double divide(double x,double y){ return x / y;}

IOS development and ios development tutorialTraditional alertView -(Void) alertView {UIAlertView * alert = [[UIAlertView alloc] initWithTitle: @ "warning" message: @ "Your operation is invalid. Do you want to continue?" delegate: nil cancelButtonTitle: @ "cancel" otherButtonTitles: @ "OK", nil]; alert. alertViewStyle =

Ios development-Design and Implementation of the phone book and ios development phone book #import # Import "SubViewController. h "@ interface SubViewController () @ end @ implementation SubViewController-(void) viewDidLoad {[super viewDidLoad]; self. view. backgroundColor = [UIColor whiteColor]; // read the plist fi

IOS development and ios development tutorialCore Data Core Data is a framework that emerged after iOS5. It provides the object-relational ORM ing (ORM) function, that is, it can convert OC objects into Data and store them in SQLite database files, it can also restore the data stored in the database to an OC object. Dur

Multithreading in IOS development and multithreading in ios development I. Five ways to create Multithreading 1. method 1 for enabling threads NSThread * thread=[[NSThread alloc] initWithTarget:self selector:@selector(_update) object:nil];2. method 2 [NSThread detachNewThreadSelector:@selector(_up

Ios development Note TextView, ios development textview 1. cannot scroll self.scrollEnabled = NO; 2. Normal font [UIFont systemFontOfSize:30.0f] 3. bold font [UIFont boldSystemFontOfSize:30.0f] 4. Text Box offset self.textContainerInset = UIEdgeInsetsMake(TEXTVIEW_TOP_INSET, TEXTVIEW_LEFT_INSET, TEXTVIEW_BOTTOM_

IOS development and ios development tutorialMAC system Shortcut Keys list system startup Press X at startup: Force Mac OS X to start the computerWhen starting, press Option-Command-Shift-Delete: Do not use the primary boot hard disk, and find the external disk and CDPress C at startup: Start the CD with a system folder

Sms sdk verification Development (SMSSDK) is quickly integrated in IOS, how to set the mobile phone verification code in IOS development, iossmssdk [Reprinted, please specify the source] The sdk is from someone else. I just downloaded it to integrate it. Smssdk download site: http://www.mob.com/(there are many other we

IOS development and ios development tutorialCore Data Core Data is a framework that emerged after iOS5. It provides the object-relational ORM ing (ORM) function, that is, it can convert OC objects into Data and store them in SQLite database files, it can also restore the data stored in the database to an OC object. Dur

IOS development and ios development tutorialPaging-related attributes As long as the pageEnabled attribute of UIScrollView is set to YES, UIScrollView is divided into multiple independent pages, and the content in it can be displayed by page. Generally, the pageEnabled attribute is used with UIPageControl to enhance th

Code for IOS development: jiugongge and jiugong for ios development When you use UIScrollView to display images, If you directly add UIImageView to UIScrollView, there is no problem when the number of images is small, but when we add a large number of images, it will occupy a large amount of memory. Let's talk about h

HTML parsing in iOS development and HTML parsing in iOS development Before parsing, add the following third-party classes to the project: You must add a library for the preceding three classes. The Library is libxml2.2.dylib. You also need to set some path parameters. In targets, Search for Header Search Paths in bui

IOS development-project knowledge sharing and experience accumulation (1), ios development Recently, when I was working on a project, I used Storyboard to adapt to the screen quickly. After adding constraints, I found a problem (this problem will be shown in common cases below ); there is no problem on a screen of 4.7

Multithreading in IOS development and multithreading in ios development I. Five ways to create Multithreading 1. method 1 for enabling threads NSThread * thread=[[NSThread alloc] initWithTarget:self selector:@selector(_update) object:nil];2. method 2 [NSThread detachNewThreadSelector:@selector(_up

Data sqlite for IOS development, sqlite for ios development 1. Introduce the Toolkit Introduce the Toolkit libsqlite3.dylib, which is the C language toolkit. Ii. Code operation Database 1. Create and connect to the database -(Void) _ connectDB {// 1> obtain the sandbox path as the initiali