IOS

First define an outer div, inside the set a span as a button can be clicked, when clicked on it, use animation to slide it to the right, while sliding, you can change some other properties, to achieve better results JS Code: Effect Chart:

Calculate the distance method according to two point longitude and latitude: -(double) LatitudeAndLongitudeWithLon1: (double) lon1 LAT1: (double) lat1 Lon2: (double) lon2 lat2: (double) lat2{Double er = 6378137; 6378700.0f;Ave. Radius = 6371.315

Sina Weibo has been used to find that Weibo provides several special symbolic labels for the messages sent. For example: Enter "@+ Weibo user nickname (ie ID) + space or punctuation", then in this micro-blog This @ entry will appear as a hyperlink

The code is as follows Copy Code #pragma mark-Shopping Basket button click event-(void) Shoppingcartbuttonaction: (uibutton*) Sender{if ([[Userdef objectforkey:@ "id"]isequaltostring:@ "0"]) {[Self showhudtextonly:@ "please log in,

Converts the current date to the day of the week -  (void) Getweek {    nscalendar *calendar = [[nscalendar alloc]  initWithCalendarIdentifier:NSGregorianCalendar];     NSDate *now;     NSDateComponents *comps = [[NSDateComponents alloc] init];

Uipickerview is a selector control that generates a Single-column selector or a multiple-column selector, and the developer can fully customize the appearance of the selected item, so it's very flexible to use. Uipickerview directly inherits UIView

During iOS development, multiple Uibarbutton distances added to Uitoolbar and Uinavigationbar are usually fixed and cannot be adjusted.For example, when adding more than two Uibarbutton to the right of the Uinavigationbar, two Uibarbutton plus the

Effect Chart: With the increasingly popular iOS-style operating system and navigation in the marketplace, today's jquery tutorial introduces how to generate an iphone-style menu navigation. HTML code We use mosaic to generate menu content

After IOS8, Apple released the fingerprint recognition function, uses the Touch ID to identify the user, makes the user authorization, mainly relies on the Localauthentication library Fingerprint identification: One to determine whether the device

iOS sandbox mechanism, applications can only access files in their own application directory. Unlike Android, iOS does not have the SD card concept to directly access images, video, and more. The content produced by iOS applications, such as images,

KnphotobrowerHigh Imitation micro-blog Image browser Photobrower.gif I. Functional description and key points1. Load Network Nine Sudoku pictures, Collectionview,scrollview2.SDWebImage download picture, Knprogresshud Show loading progress3. High

If it is the contents of the page alert, we can wait for the page loaded, that is, in the Webviewdidfinishload to execute the following JS code, you can screen alert [Mywebview stringbyevaluatingjavascriptfromstring:@ "window.alert=null;"];

IOS Graphics and Text Mix (coretext.framework) This article mainly introduces the iOS graphics and text mixed row of data, here sorted out the content of the online search, to help understand, master this part of knowledge, the following is the

IOS swift3.0 closed-pack grammar collation First, the concept of closure There are OC basis know that the closure is actually OC inside the block, grammatical format is not the same, but the role is the same. It is used primarily for callback

Let's take a look at the effect chart. Implementation methods . h Files @property (nonatomic, retain) Nsarray *changearray; @property (nonatomic, retain) nsmutablestring *changestring; @property (nonatomic, retain) Uilabel *codelabel; -(

Company project needs to develop a similar QQ, micro-letter Instant IM chat function, so that real-time monitoring messages, need to use the technology is websocket, today to tidy up the language chat this piece; in fact, language chat, including

Existing time string obtained from the server: @ "2016-12-05t12:21:37″ The difference between this and the generally obtained time string is that there is a T in the middle.The NSDate method is obtained from this string as follows:1.

The system's Uipickerview is very simple, the style is also very simple monotonous, the interface feeling is very monotonous not good-looking, sometimes needs us to customize, makes oneself wants the style. First give the generic style of the

IOS Xcode 8.0 real machine debugging run: This *** is running iOS 10.1.1 (14B100), which may not be supported, xcode14b100 In May October 2016, Apple upgraded the iOS system to 10.1. The following message is displayed when xcode 8.0 is run:This

Mach-O Dynamic Link (Lazy Bind mechanism), mach-olazy Refer to the following link for more technical tips: Alibaba Cloud blog Dynamic Link The simplest way to solve the problems of space waste and updating is to separate program modules to form