IOS

The functions of delegate, notification and KVO are similar, so how do you choose these methods in actual programming? When developing iOS apps, we often encounter a common problem: how to communicate between controllers without too much coupling.

After a few years of the iOS HMI guide, the opening is always followed (deference), clear (Clarity), depth (Depth) These three keywords, from iOS7 to IOS9 has never changed. In Ios>, the UI as a support for content, always serves the content, just

iOS version of WPS Office version of the upgrade, in addition to more global mainstream network support, further improve the PPT presentation document playback is the main content of this update. According to the iOS version of WPS, the head of

　--Prepare for work First, your device needs to run iOS 7 (or more) and OS X Yosemite versions of the system to achieve Cross-platform file transfer. In addition, the user transmits the Mac must also be 2012 or after the model, the iOS device model

iOS friends know or hear about runtime, which is much like the reflection mechanism of Java , but the function is much better than the reflection of Java . By Runtime we can dynamically add attributes, member variables, methods , and read and write

One, use the soft keyboard of the done key to hide the keyboard Starting soft keyboard Hiding the most commonly used event is the Did end of the text box, which occurs when the user presses the done key on the soft keyboard. Select a Uitextfield

Save Photos to System albumssave photos to the System Photo album this feature is available in many social networking apps, and today we will briefly explain how to save the picture to the System album (Photo Album). 1. Create Uiimageview To

defines                                                                                                               The Separates the build of a complex object from its performance so that the same build process can create different

Description: project.xcworkspace Description : is a directory of files describing the workspace or projects. Although some of the answers here indicate it are unnecessary and should are ignored for source control, I don ' t agree, but It's going to

Brief introduction Charles is a popular tool for intercepting network packets under Mac, and in the development of iOS, we often need to intercept network packets for the purpose of debugging the network communication protocol with the server side.

The combination of Mac and iOS, the two systems now have more and more features similar, which is very good. MACGG now finds that we can make the dock on the Mac look more like the ipad dock. How do you do it? Open Terminal (Applications folder,

Vertical center of iOS-Button image and text [center button image and text at the same time], and center ios-Button   In the past, there were not many such requirements, which were often used in recent development. Therefore, we simply encapsulate

IOS adaptive height, font color change, ios font color     # Define kMainBoundsWidth ([UIScreen mainScreen]. bounds). size. width // screen width # define kFont [UIFont systemFontOfSize: 17.f] // font size # define kLineSpacing 7 // row

IOS-touch event-event transfer process and response chain, ios-chain 1. There are three common events in ios: Touch event Accelerator event Remote Control event 2. Why does it mean that events can be handled with the inheritance of

[Reading Notes] iOS-"Single-core and multi-purpose" improves performance with multithreading, and ios-single-core and multi-purpose The iPhone will be able to support different types of multi-threaded APIs, including POSIX Threads, NSObject,

IOStextfield limits the length of input characters and filters emojis, // Add a modification box -(Void) creatSaveView { UILabel * lab = [[UILabel alloc] init]; If (self. searchType = 1 ){ Lab. frame = CGRectMake (14, 8 * KWIDTH + 64,

[Code Note] iOS-string replacement carriage return and line feed, ios-line feed I. Code. -(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. // Replace the carriage return and space

How does one count downloads of iOS products from different channels ?, Statistics on ios product channelsI. Preface During development, Android may produce many packages to identify different store downloads. I thought Apple had only one store:

Study Notes, study notes coverI. What do I need to pay attention to when using NSTimer? 1. Make sure there is an active RunLoop.NSTimer is a timing mechanism based on RunLoop, which involves the knowledge extension of the default main thread and sub-

[Code Note] iOS-computing time difference, note ios-Time Difference I. Code. -(Void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. // time format: 18:34:31 NSLog (@ "% ld", [self