ipad ios 12 1

: (NSString *) identifier NS_AVAILABLE (10 _10, 8_0);Unified Configuration Nsurlsession-(Nsurlsession *) session{if (_session = = nil) {Create NsurlsessionconfigurationNsurlsessionconfiguration *config = [Nsurlsessionconfiguration defaultsessionconfiguration];Set request Timeout to 10 secondsConfig.timeoutintervalforrequest = 10;Whether to continue the request (upload or download) in the case of a cellular networkconfig.allowscellularaccess = NO;_session = [nsurlsession sessionwithconfiguration:

Using storyboard to design static tabular data A. Implementation step 1. Controller inheritance UITableViewController2. Use Tableviewcontroller in storyboard to remove the original ViewController3. Set Class 4. Set a new view Controller for program entry 5. Set TableView style to grouped 6. Set the content of the TableView to static Cells, temporarily set section 1 (explained later) 7. Set Table The style o

;provisioning profiles view② Check if the Code Signing Identity in Project and Target is set, it must be the same3. When depositing basic data types into Nsarray, you can use NSNumber, or you can use shorthand// nsnumber form _signtypesarr = [Nsarray arraywithobjects:[nsnumber numberwithinteger:3],[nsnumber Numberwithinteger:2], nil];// abbreviated form _signtypesarr = [Nsarray arraywithobjects:@ (2), @ (2), @ (2), @ (1 ), @ (3), @ (3), @ (3), nil];Bu

In this essay, we just need to know what UIWebView is.UIWebView is a UI control provided by Apple to display a Web page, and it is also the most memory-occupying control.iOS8.0 after the WebKit framework, Wkwebview compared to UIWebView save 1/4~1/3 memory, fast, but no cache function.For the display of some shopping app pages is inevitable, so uiwebview for us also should be proficient in the song space.Le

Actually very annoying apple this set of shelves mechanism, audit cycle long, and speed and slow, but no way, can only shelves to AppStore, helpless.Before the shelves need to ensure that the application icon is complete, and in the Info.plist in the icon files added PNG pictures, otherwise the validate pass in the process;1, before the shelves, need to production type of Certificate,app id,distribution type of provisionning profile;2. Enter itunes co

it can only be disconnected from the network, so here I still use the web app description .) : The meta shows that the content is "Web application XX of Apple devices". That is to say, this meta is specially defined for Web applications. But what is web app? Visit: http://www.apple.com/webapps/ you will be able to understand. Web apps are HTML5 applications. For example, you can develop an HTML5 application (such as beebot, Tetris, and utilities fee query ), the HTML5-based reference of

to create a new type, should you choose a value type or a reference type? When you use the Cocoa Framework, many NSObject of the APIs are subclasses, then you have to use reference types, that is class . In other cases, here are some guidance suggestions you can refer to:Cases where value types are used: ==when using an operator to compare instance data. When you want to copy an instance data separately. When working with data in a multithreaded environment. Use a referenc

1:delegate Application. h#import 2: Realize UIButton display in different state[Btn settitle:@ "more" forstate:uicontrolstatenormal]; [Btn settitle:@] "forstate:uicontrolstateselected"; Btn.titleLabel.font = [Uifont systemfontofsize:12]; [btn Settitlecolor:[uicolor Blackcolor] forstate:uicontrolstatenormal]; [btn Settitlecolor:[uicolor Blackcolor] forstate:uicontrolstateselected]; btn.adjusts

1, Xcode6 in the iphone5 simulator run TextField does not eject the keyboardHardware->keyboard->toggle software Keyboard manually activating the keyboard2. Click Return to receive the keyboard(1) Hold down CTRL, select TextField, and drag to Viewcontroller to connect the two.(2) Add the @interface line in. h.(3) Add code in. M:-(BOOL) Textfieldshouldreturn: (Uitextfield *) TextField{if (TextField = = Self.a

IOS network analysis-(12 UIWebView Introduction), iosuiwebview In this article, we only need to know what UIWebView is. UIWebView is a UI control provided by Apple to display webpages. It is also the most memory-occupied control. After iOS8.0, A webkit framework emerged. WKWebView saves 1/4 ~ compared with UIWebView ~ 1