IOS

1. Uiresonder All controls in C # (for example, a TextBox) inherit from the control class. The control class inherits relationships such asUnder Copy Code code as follows: System.Object System.MarshalByRefObject

UIWindow is a special kind of uiview, which usually has only one uiwindow in an app. After the iOS program is started, the first view control created is UIWindow, then creates the controller's view, and then adds the controller's view to the

The accelerometer is the basis for the entire iOS screen rotation, depending on the accelerometer, the device can determine the current device direction, the iOS system defines the following seven device orientations: Copy Code code as follows:

1 Preface Recent work is not too busy, just have time to understand some other things, originally intended to go to the physical examination this morning, but to see the weather or tomorrow to go again, there is a big reason: there is no

This demo, about the main function of song playback has been achieved. Next, on a song, pause, according to the song Play Progress dynamic scrolling lyrics, the currently playing lyrics enlarged display, drag progress bar, songs follow the changes,

iOS basic animation/Key frame animation/Physical animation effect with ease function First of all, the Basic animation section The basic animation part is simpler, but the animation effect that can achieve is also very limited The use method is

The iphone sandbox model has four folders, what they are, where the permanent data store is typically placed, and what the simple way to get the emulator path is. Documents,tmp,app,library. (Nshomedirectory ()), Manually saved files in documents

One feature of the iOS version of micro-mail: When you send a photo in a friend's circle, you can show the location based on where the photo was taken. News, netizens have started to try new features of the play. When uploading pictures in the

Mobile applications in processing network resources, generally do offline cache processing, which is the most typical image caching, which is very popular offline caching framework for sdwebimage. However, offline caching consumes cell phone

Use and iOS8 later, just put the system Uialertcontroller encapsulation, save every time to write a lot of code. After encapsulation only need a code, deome address : Https://github.com/liguoliangiOS/LGLAlertView.git On code LGLAlertView.h:

XML attribute list-plistFirst, the application of sand boxeach iOS application has a ⾃ ⽤ sandbox (the application sandbox is the file system directory) and is isolated from other file systems. Should ⽤ must stay in ⾃ 's sandbox, other applications

Objective In the multithreaded introduction, I've already explained that in order to improve the smoothness of the interface and the user experience. It is important that you do not block the main thread by putting time-consuming operations into

I. The searchbar of the system1. Neutron control and its layout of UisearchbarUIView (direct child control) frame equals Searchbar bounds,view child control and its layout Uisearchbarbackground (Indirect child control) frame equals searchbar

The Verification Code Countdown button application is very common, the blog and you together to write a idcountdownbutton to achieve the verification code countdown effect. You can want to use the ordinary UIButton type button, just need to set its

After a server request, the data returned to the client is typically in JSON format or in XML format (except for file downloads) This article will first explain JSON parsing. Body: About JSON: JSON is a lightweight data format, typically

In the OC language, the NSString type of string, depending on the English alphabet and Chinese characters, is a length (String.Length a Chinese character as a length), whereas in fact an English letter occupies only 1 bytes and one Chinese character

QQ sticky Little Red dot very funny there are wood, so they want to achieve some, see the iOS implementation of less people, Android more, so this is the use of iOS to achieve ha ~ Effect Chart: Debug diagram: In fact, in terms of

Before the cloud Habitat Community Platform for you to share the home page navigation package NetEase, NetEase home navigation package optimization, today on the basis of the top two to imitate today's headlines. 1. NetEase Homepage Navigation

In iOS, there is a concept called pixel alignment, if the pixel is not aligned, then in the GPU rendering, the need for interpolation calculation, the interpolation calculation process will have performance loss. On the emulator, there is an option

Grand-Dispatch (GCD) is a solution for multi-core programming developed by Apple. The dispatch queue is divided into the following three types: 1 runs the main thread of the main queue and gets it through the dispatch_get_main_queue.