Implementation of iOS Development app message push (latest)

Today, by this rookie to do a simple iosapp message push tutorial it! Everything starts from 0, including XCode6, IOS8, and the Apple Developer Center How to register the app, request a certificate, and download the configuration profile, and I'm sure many people who are just beginning to touch iOS will want to know. (PS: Read a bit on the Internet although there are a lot of good tutorials to talk about push, I also look at the steps to learn, but the time of these tutorials is last year or earlier, not very suitable for beginners to guide)

Here are some good examples of iOS apps and game Source: http://code.662p.com/list/12_1.html
The first part
The first step, of course, is to introduce the Apple push mechanism (PS: In fact, every tutorial has), first of all, to see an Apple's APNS to explain its push to make a schematic.
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Provider is a server that sends push messages to your mobile app, while APNs (Apple push Notification Service) is an Apple messaging push server. Your local server when you need to push a message to the app, first send the message to the Apple push server, and then by the Apple push server to send the message to the phone that installed the app.
Let's look at an explanation chart:
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Based on the logic I'll explain to you:
1. Your iOS app needs to register for the APNS message push feature.
2. When the Apple APNs push receives the registration message from your app, it will return a bunch of device tokens to you (very important)
3. Pass the device token received by the app to your local push server.
4. When you need to push a message for the app, your local push server will send the message, along with the device token, to Apple's APNs service.
5.APNS then pushes the message to the destination iphone

Part II
1. Issuing certificates from a certification authority
Open your Mac Keychain Access: <ignore_js_op> then click Keychain to access
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Detailed Description: http://ios.662p.com/thread-2263-1-1.html

Implementation of iOS Development app message push (latest)