IOS

icloud documents inevitably clash during the preservation process, we must have a strategy to resolve the conflict. The adoption of policies depends on the needs of the user, some simple and complex, the simplest of which is to overwrite the

Using socket for C/s structure programming, connection process The server side listens for a connection request on a port. The server-side program is blocked until the client issues a connection request to the server, and the server-side accepts

First, iOS native font display Select font in the label, and change font from system to custom, you can see 72 special fonts in family. These have very cool fonts, but all are only for English numerals, not valid for Chinese. Write a program that

1. iOS offers two high quality graphics rendering methods: A. OpenGL es for rendering B.quartz,core Animation, Uikit for drawing 2. The OpenGL ES Framework is mainly applicable to game or high frame rate application development. A C-language based

After learning to use someone else's pods dependency library, you must be tempted to create your own dependency library today to uncover the mystery of the pods-dependent library creation process. The entire creation process is an example of a view

Objective Network download is the function we often use in the project, if it is a small file download, such as pictures and text, we can directly request the source address, and then download the complete. But if you are downloading large audio

Objective 1, the concept of accurate image compression: "Pressure" refers to the size of the file is smaller, but the number of pixels unchanged, the long width of the same size, then the quality may fall. "Shrink" refers to the size of the file

Today, we do a demo of the Downloader, which is to download the specified file from the locally configured Apache server. This time, we download the Html.mp4 file under the server root directory. By convention, we first create a URL object and a

The strategy pattern is a common software design pattern, here is a simple introduction to the strategy model and the simple implementation of iOS.The so-called strategy model, as the name implies is to adopt a different strategy. In general, in

The example of this article for you to share a special character replacement phone number of a part of the method, iOS use-number replacement phone number in the middle four, for your reference, the specific contents are as follows One, the effect

1, new nsstring category, remember to add the header file required for encryption #import , Nsstring+md5.h: #import #import @interface nsstring ( MD5) + (NSString *) Md5to32bit: (NSString *) str; @end 2, write the encryption method:

An example of a core animation layer animation on the web is to move the cloud in view from left to right until it is moved out of the screen, then move the cloud to the left and then repeat the motion. All animations are done on the layer, but

The core of GCD programming is the dispatch queue, where the execution of the dispatch block is eventually put into a queue, similar to Nsoperationqueue but more complex and powerful, and can be nested. So, combining the GCD of block implementation,

In some scenarios, maybe we need to get the name of the app icon and the startup picture. For example, when the app is in the foreground, received a remote notification but the notification bar will not have notification reminders, then I want to do

At present, the more popular solution flash memory fault, upgrade Flash method is to use TFTP method transmission. This article is based on the Cisco 2600 series for IT168 readers. Step one: The device will enter the Rommon state after the delete

Normally, we use Nsuserdefaults to store data information, but for some private information, such as passwords, certificates, and so on, we need to use a more secure keychain. The information stored in the keychain is not lost because the app is

IOS 7 is a raging one, and whether you upgrade or not, you must know something about it. The operating system can only be said to be mixed. Some of the changes in IOS 7 are well received, while others remain controversial. This article is mainly

Getting started with iOS development☞OC language · Note 2, iosoc1. attributes and instance variables) 1.1 What is an attribute defined in essence (what is the compiler doing for us ): 1) generate instance variables to save attribute values 2)

Getting started with iOS development☞OC language · note 6, iosocThree main features of object-oriented: encapsulation, inheritance, polymorphism 1. Encapsulation 1.1 Basic Concepts Combine scattered things. In a broad sense, encapsulation refers

IOS development-UI (7) view-level animation and ImageView,-uiimageview Knowledge point: 1. simple animation of UIView 2. UIView hierarchy 3. Use of UIImageView 4. UIView dock Mode   ================================== Simple animation of UIView   1.