Introduction to iOS


iOS Introduction

iOS, formerly known as iPhone OS, is a mobile operating system developed by Apple.

The first version of iOS was released in 2007 and included the iPhone and iPod Touch.

The iPad (first generation) was released in April 2004, and the iPad mini was released in November 2012.

iOS devices are released quite frequently. From past experience, we know that at least one version of iPhone and iPad will be launched every year.

Now iPhone6s has been released, and previously iPhone, iPhone3gs, iPhone4, iPhone4s and iphone5, iPhone5s, and iPhone6 ​​were launched.

The same iPad has also been updated from iPad first generation to iPad fourth generation and a special mini version of iPad.

iOS SDK has been updated from 1.0 to 6.0. The latest iOS SDK6.0 is the only version that supports Xcode4.5 and higher.

Rich Apple documentation allows us to find many methods and libraries for our deployment targets. In the current version of Xcode, we are able to choose between deployment targets for iOS 4.3, 5.0, and 6.0.

The impact of iOS can be seen from the following features:

Facebook and Twitter, accelerometer, GPS, high-end processor, camera, Safari browser, powerful API, Game Center, in-app In-app purchases, reminders, wide range of gestures
  • Map
  • Siri
  • Facebook and Twitter
  • Multi-Touch
  • Accelerometer (acceleration sensor)
  • GPS
  • High performance processor
  • Camera
  • Safari browser
  • Powerful API
  • Game Center
  • In-app purchases
  • Reminder feature
  • Gestures

iPhone and iPad users are increasing day by day , which creates opportunities for developers of iPhone and iPad app stores to make money.

The latest thing about iOS is that Apple has developed the App Store so that users can purchase applications to complete their iOS devices.

Developers can publish free and paid applications in the app store.

To develop an app and publish it to the App Store, developers need to sign up for the iOS Developer Program, update Xcode for $99 per year, and have a Mac Mountain Lion or higher.


Register Apple Developer

For users who own Apple devices, it is very necessary to have an Apple ID, and to become a developer, you must use an Apple ID. Obtaining an Apple ID is free, and there are no fees to worry about.

Having an Apple account has the following benefits:

  • Easy to learn about R&D tools;
  • Video conference for global developers;
  • Invited to join iOS R&D Developer Team;

Register Apple Account

1. Click (https://developer.apple.com/programs/register/) and choose to create an Apple ID

iOS_Free_Reg

2, enter personal information

3, return to the email to confirm, activate the account

4, Download development tools, Xcode and the iOS simulator, iOS SDK and other development resources it contains


Apply for APP developer

1. Click (https://developer.apple.com/programs/ios/)

iOS_DeveloperProgram_Reg

2. Click the registration page

3. Log in to the account (already have an account) or register an Apple ID

4. Select a personal account or company account, developer The team uses a company account, and personal accounts cannot add other users

5. New users enter the personal information page, use a credit card to purchase and join the R&D project

6. Select the member center and use developer resources

memberCenter

7. You can perform the following operations here:

  • Create a configuration file for resource provisioning
  • Manage teams and devices
  • Manage apps via iTunes Connect
  • Get forums and technical support