IOS

I encountered the following problem: initialize a dictionary and give three key-values during initialization. However, when printing a dictionary, only the first element has a value and the last two have no value. Nsdictionary * dict =

In today's technology age, the iPhone has become a leading mobile device.This innovative access applicationProgramThe store is very popular.IOS developers have been striving to create some of the most ingenious applications.I have collected 33

1. Cocoa event Layer Addressbookui UseAddress bookUI framework,Show contactsOfAddress bookDatabaseMediumOfData. Eventkitui CreateUser Interface,Used for viewing and editingCalendar dataAndEventKitUI framework.

According to some requirements of a ordering system on the external package website, the trainer mainly uses the following knowledge:Download the complete source code:/Files/0771bc/Documents .zip 1. Apply tabbar controller and navigation Controller2

Recently, Cisco issued a vulnerability notification for some specific IOs (Internetwork Operating System) versions of switches, that is, Cisco found that for a specific version of IOS, when users start FTP or telnet, as long as the authentication

In development, because the server and client are two different platforms, and the server is an old system, they do not have a good object-oriented nature, therefore, the client and the server have to communicate with each other through some

Document directory Gravity sensing IOS devices have some unique features that affect the user experience of all applications running on them. Most popular applications are well integrated with these features.Screen Size Screen Display of a

Document directory Deb . IPA . Pxl Currently, there are three common installation packages on iOS: Deb, IPA, and pxl.Deb format Deb is the installation package for Unix systems (mainly Linux). Based on the TAR package, Deb records the file

IOS audio playback uses the avfoundation framework. It contains three main classes: avaudioplayer, avaudiorecorder, and avaudiosession. They are responsible for audio playback, recording, and configuration, and all have the corresponding delegate

I have been familiar with ASIHTTPRequest, a powerful HTTP network request class library for iOS development. Today I will introduce how to use ASIHTTPRequest to Implement Asynchronous queues. Official Address:

Message-based GUI Architecture In the past few days, the GUI architecture of most programming language platforms has hardly changed. Although there are some differences in details, such as functional and programming style, most of them adopt the

Apple's products are always easy-to-use, well-designed, and have a full grasp of user experience. iPhone, iPad, iPod, and iMac are all sought after. Apple's design style has become a major feature and a benchmark for designers to imitate. This

Objective-C data types can be divided into: basic data type, object type, and id type. Basic data types include int, float, double, and char. The object type is the pointer type declared by the class or Protocol. For example, the NSAID

-(BOOL) application :( UIApplication *) application didfinishlaunchingwitexceptions :( NSDictionary *) launchOptions{Self. window = [[UIWindow alloc] initWithFrame: [UIScreen mainScreen] bounds];Self. window. backgroundColor = [UIColor whiteColor];//

1. Client Programming The push notification technology can run on Mac OS X and iOS systems. This chapter mainly introduces the programming of iOS clients. The push notification programming is relatively simple. The key to programming is to obtain

After iOS 6, Google map is no longer used, but Apple's own map is used, but the API programming interface does not change much. Developers can develop map applications without learning many new things. Therefore, this section also applies to running

1. AFNetworking Among many open-source iOS projects, AFNetworking can be called the most popular library project for developers. AFNetworking is a lightweight Network Communication Class Library for iOS and Mac OS X, and is now the third largest

High Precision Timers in iOS/OS X The note will cover the do's and dont's of using high precision timers on iOS and OS X.High Precision Timers in iOS/OS XDo I need a high precision timer? A suggestion for synchronizing with display updatesHow do

This document describes how to block access to a specific website. Taking Cisco Route 2600 as an example, we will provide detailed instructions. There is a Cisco 2600 server, which is usually used as an Internet server. What should I do if I want to

Do you know why Cisco IOS provides 16 permission levels with different commands? Many network administrators who work in the Cisco IOS environment have never bothered to consider the meaning of their use of permission levels or these levels. this