IOS

Briefly describe the seven methods for passing values between UIViewControl ~~~, Seven types of uiviewcontrol I will summarize several methods of passing values between the UIViewControl I learned here. I hope that my shoes will support more ~~~ I.

Common Properties of UIView and common properties of UIView Common Properties of UIView: @ interface UIView: UIResponder /*** initialize a UI control using a frame */-(id) initWithFrame :( CGRect) frame; // YES: interaction with users @ property

Label auto-adaptive height based on the number of characters displayed Label adaptive height based on the number of characters displayed 1 UILabel * label = [[UILabel alloc] init]; 2 NSString * string = @ "In fact, after years of past, why didn't

Use UILabel to implement text scrolling (running horse lamp) and uilabel text scrolling -(Void) viewDidLoad {[super viewDidLoad]; // data source self. messageArray = [NSArray arrayWithObjects: @ "1", @ "2", @ "3", nil]; self. msgCount = 0; //

IOS-capture application crash logs, ios-capture logsAs an iOS mobile app developer, to ensure that your app is correct, you must perform a lot of testing before submitting the app to the app store; in addition, the application program runs well

IOS uses Charles to capture packets and tamper with the returned data, I wrote this article mainly because I forgot to capture packets with blue and white porcelain some time ago. I did not find the complete tutorial I wrote after I checked it

Create a simple canvas for iOS and a canvas for ios Make a simple canvas As a beginner in iOS, after learning several simple controls (UILable, UITextField, UIButton) in the UI, you can create a simple graphic board demo, the following is the

Swift-Regular Expression verification mobile phone number, swift-mobile phone number // Regular Expression for mobile phone number verification 1 func validateMobile (phoneNum: String) -> Bool {2 3 // the mobile phone number starts with 13 14 15 18

Animation UI_22 in iOS 1. The controls we can see in iOS are subclasses of UIView, such as UIButton UILabel UITextField UIImageView and so on. 2. UIView can be displayed on the screen because a CALayer layer is automatically added when it is created.

In iOS, DataBase SQL DataBase UI _ advancedStructured query Lauguage: Structured query Language1. create table if not exists Teacher (tea_id integer primary key autoincrement, tea_name text, tea_gender text, tea_age integer, tea_salary integer): 2.

Sharing of functional UI Technology in the editing status of UITableViewRowAction tableViewcell in iOS   * TableView: editActionsForRowAtIndexPath: // you can specify multiple buttons for sliding and deleting. * UITableViewRowAction // click this

After ios7, the frame method is calculated based on the UILabel text. ios7uilabel Ios7 determines the width and height of the label based on the text and font size of the label. The official method is: -(CGRect) boundingRectWithSize :( CGSize) size

UICollectionView UI_19 in iOS UICollectionView is UITableView enhanced Edition Design Concepts of UITableView and UICollectionView: 1. Layout: The layout of UITableView can be completed by UITableView and UITableViewDelegate. The layout of

POST asynchronous request and iOSPOST asynchronous request in iOS POST asynchronous request (proxy) 1. Follow @interface ViewController () 2. The NSMutableData type reData attribute is used to splice data. @property (nonatomic,strong)NSMutableData *

IOS network NSURLConnection, iosnsurlconnection NSURLRequest Used to save the request address, request header, and request body By default, NSURLRequest automatically sets the Request Header for us. Request is a GET request by default.

Integrate iOS development with Core Spotlight Framework in iOS9 to search for App content, ios9spotlight Spotlight has made some new improvements on iOS9, that is, opening up some new APIs. With the Core Spotlight Framework, You can integrate

One-week Essays -- 15.10.19 and later -- 15.10.19A new knowledge point record in a week (15.10.19) I.Ipad-UIPopoverController UIPopoverController inherits from NSObject and therefore does not have the display capability. It displays content through

IOS learning Animation 1: UIKit AnimationFor IOS, you can use the Animation method provided by UIKit for normal animations. For complex animations, you can use Core Animation. 1. Use UIKit animation-(void) animationOfUIKit {UIView * redView =

IOS Core Animation learning Summary (3) -- basic Animation type, iosanimation 1. CABasicAnimation (basic animation) Shift: CABasicAnimation * animation = [CABasicAnimation animation]; // keyPath specifies the animation category, and position

IOS --- precautions for using NSTimer to set scheduled tasks NSTimer is a timer mechanism in iOS development. It is often used to set scheduled tasks using its ischeduledTimerWithTimeInterval method.We will use a countdown timer to illustrate the