wwdc2017

WWDC17如期而至，蘋果這一次表現出了足夠的誠意，也表達了其繼續改變世界的決心和情懷。在Keynote環節用兩個多小時闡述和演示了蘋果生態系統軟硬件方面的更新，有升級優化，也有創造革新，可謂亮點多多。

蘋果一直聲稱要以技術和情懷改變世界，正如本次主題詞:

Technology alone is not enough.
Technology must intersect with the liberal arts and the humanities,
to create new ideas and experiences that push society forward.
This summer we bring together thousands of brilliant minds representing many diverse perspectives,passions, and talents to help us change the world.
僅僅靠技術是不夠的。
技術必須與文科和人文相交，創造新的思想和經驗，推動社會向前發展。
今年夏天，我們匯集了成千上萬的才華橫溢的人才，代表著許多不同的觀點，激情和才華，以幫助我們改變世界。

那么，快來看看蘋果將怎樣改變世界吧

• 硬件方面：發布了包括21.5/27寸iMac/iMac Pro、10.5寸超窄邊iPad Pro、7代酷睿的MacBook、A10X處理器的iPad Pro，支持Siri和HomeKit的全新硬件HomePad揚聲器等。
• 軟件方面：tvOS細微改進、watchOS 4、macOS High Sierra、iOS 11等。

本文目錄

1 tvOS
1.1 Changes on tvOC
2 watchOS
2.1 Changes on watchOS
2.2 Features
3 macOS High Sierra & New Macs
3.1 Updates on macOS High Sierra
3.1.1 Safari ( more faster )
3.1.2 Mail
3.1.3 Photo
3.1.4 Data
3.1.5 Video
3.1.6 Graphics ( All about GPU )
3.2 New iMacs
3.2.1 Features
3.2.2 Comparison
3.2.3 The most powerful Mac ever —iMac Pro
3.2.4 New MacBooks
4 iOS & HomePod
4.1 Technologies
4.1.1 Message
4.1.2 Siri
4.1.3 Camera & Photos
4.1.4 Map
4.1.5 Home Kit
4.1.6 Apple Music
4.1.7 App Store —the best platform in the worlld
4.1.8 Machine Learning ( Core ML )
4.1.9 AR ( AR Kit )—the largest AR platform in the world
4.1.10 Something Special for China
4.2 iOS 11 on iPad
4.2.1 Pro motion —120Hz Display refresh rate
4.2.2 Deck on iPad
4.2.3 Files on iPad
4.3 HomePod ( $349 )
4.3.1 For waht
4.3.2 Hardware
4.3.3 The Great Home Speaker

tvOS

Changes on tvOC

Add Amzon and suppot it's prime video

tvOS本次沒有實質上的更新，僅僅宣布了亞馬遜的加入并帶來了更多優秀的視頻。

watchOS

Changes on watchOS

Card View UI
Activity new UI
Great support for workout
Music app added and support background play

watch OS在UI上學習了Google Material UI的Card View,使得iWatch在視覺呈現上更加美觀，同時在通知欄UI上有了較大改變。在運動、天氣、交通等方面更好地支持戶外生活，運動數據呈現更加生動直觀。新加入的Music app讓用戶可以直接在手表上享受音樂，并可支持無線藍牙。

Features

Screen autorotate
Background navigation
Background audio recording
Single-propress runtime
Full screen
Overlapping layers
Water lock API
Core Bluetooth

以上是watchOS許多細節上的特性。此外，watchOS新加入了萬花筒新表盤和玩具總動員表盤。

macOS High Sierra & New Macs

Updates on macOS High Sierra

Safari ( more faster )

World's most fast desktop browser
Modern JavaScript performance
Intelligent tracking prevention

Safari的更新最顯著的是速度，比Chrome快了80%，號稱目前最快速的桌面瀏覽器。

Mail

Full-screen split view
Storage space required for mail up to 35% less

郵箱可支持全屏左右分屏操作，可以對著收件內容編輯回復，方便直觀；同時，郵件的空間占用減少了35%。

Photo

更好地根據人工智能進行分類，更精準人臉識別，幫助用戶科學管理照片。

Data

APFS ( Apple File System )

Advanced architecture
Optimized for morden storage
64-bit data structure
Easily adapted to future storage

Safe and Secure
Crash protection
Safe document saves
Stable snapshots
Native encryption

Ultra Responsive
Instant file and directory cloning
Fast directory sizing
Zero copy snapshots
Parallelized metedata operations
Frequently used items in inode
Sparse file write

文件系統由HFS升級為APFS，提升了易用性和安全性，復制操作顯著變快。

Video

H.265( High Efficiency Video Coding ) —up to 40% better compression than H.264
支持更加快速高效的H.265視頻編碼，壓縮速率比H.264快了40%。

Graphics ( All about GPU )

i. Metal 2 updated,up to 10x better draw call throughput

Driver optimizeations
Indirect argument buffers
SIMD group data exchange
Uniform variables
Sampler arrays
Resource heaps

由Metal到Metal 2，性能提高10倍。

ii. Used for machine learning

Metal perfance shaders
Recurrent nature network kernels
Binary convolution
Dilated convolution
L-2 norm pooling
Dilated pooling

加入人工智能，功能更強大。

iii. Metal for external graphics

Thunderbolt 3 enclosure
AMD Redern RX 580
USB-C hub

外部設備支持升級。

iv. VR content creation ( Metal for VR )

VR -optimized display pipeline
Viewport arrays
System trace stereo timelines
GPU quene priorities
Frame debugger stereoscopic
Visualization

可支持VR內容創造。

今天起可在開發者網站下載macOS High Sierra Bate版本

New iMacs

Features

Best Mac displayers ever
500 nits
43% brighter
10-bit dithering
One billion colrs

Faster processors
7th-gen Intel core
"Kaby lake"
Higher base & turbo frequencies
10-bit HEVC decode

更快的數據處理器

Higher memory capacity
Up to 32GB on 21.5-inch
Up to 64GB on 27-inch

更大存儲空間

Super fast storage
Fusion drive on all 27-inch
Up to 50% faster SSDs
Up to 2TB

超快存儲速度

Comparison

The most powerful Mac ever —iMac Pro

Up to 18-Core Xean Procesor
Up to 22 traflops half precision
Up to 128GB ECC memory
…and so on

工作站級別，性能卓越！

New MacBooks

MacBook沒有更新，手上的還可以用。

iOS & HomePod

Tim Cook首先鄙視了一下Android 7安裝率

iOS 10: %86
Android 7: %7

大家都知道這不能說明什么問題，Android 7安裝率低有其特殊原因，Just for fun。iOS 11 comes,我們主要來看iOS 11有哪些新特性。

Technologies

Message

Redesigned app drawer
Messages in iCloud
Optimized device storage smaller and faster backups iOS & macOS
50% U.S. retailers accpting Apple Pay by end of year send and received money on iMessage

iMessage可儲存到iCloud并可備份到iOS設備和macOS設備，年底將有50%的零售商在iMessage支持Apple Pay支付。

Siri

i. 支持更多語言
ii. 支持人工智能
iii. 翻譯功能：支持英語與中文、法語、德語、意大利語、西班牙語等互相翻譯
iv. Siri Kit can support more

Camera & Photos

H.265 supported
Depth API
Live Photos & Loop Photos & Live Photos倒放

圖片變得更有趣了。

Map

新增Do not disturb while driving模式，利用人工智能使用戶在駕車模式可打開該模式，防止不必要干擾（如推送、短信、垃圾郵件等），接到短信后可自動發短信回復說明正在駕駛，稍后回復。

Home Kit

Air Play 2
開放Air Play 2 Audio API，開發者可開發相關智能家居功能。

Apple Music

Full access to Apple Music service
Cloud Library access
Users' for you recommendations
Featured music &charts
Search playlist,stations,,and catalog

更加注重社交和個性化，更智能幫助用戶篩選音樂。

App Store —the best platform in the worlld

Trusted and safe place for users great opportunity for all developers
Every single day has new app and new games commend for users

App Store中app和游戲展示更加豐富詳細，每日有推薦，值得信任，安全友好。

Machine Learning ( Core ML )

Vision API,learning API
Images recognized per minute

人工智能開放API。

AR ( AR Kit )—the largest AR platform in the world

Fast,stable motion tracking
Plane estimation with basic boundaries
Ambient lighting estimation
Scale extimation
Support for Unity,Unreal,ScenceKit
Xcode app templates

蘋果終于祭出AR大招了，會上演示了Demo，非常強大！

Something Special for China

QR code support
SMS fraud extension
Traffic cameras
Shanghainese dictation
English on 10-key Pinyin keyboard
Phone number as Apple ID

蘋果又一次在開發者大會上向中國用戶示好（畢竟中國用戶這么多）。支持了用相機掃二維碼、短信詐騙防護、交通攝像機、上海話聽寫10鍵拼音鍵盤和電話號碼綁定Apple ID等，誠意滿分。

iOS 11 on iPad

Pro motion —120Hz Display refresh rate

Six-Core CPU
Twelve-Core GPU

性能提升。

Deck on iPad

iPad新增Deck，類似于iMac，可呈現與隱藏，方便拖拽與分屏。

Files on iPad

iPad新增文件系統，支持拖來拖去功能，文件操作十分方便，是一個非常強大的文件系統。

HomePod ( $349 )

Reinvent Home Music & Breakthrough Home Speaker

For waht

• Rock the house
• Spatial awareness
• Musicologist
• Home assistant

Hardware

7beam-forming tweeter array
Precision acoustic horns
Directional control
Apple designed woofer
Automatic bass equalizetion
Dynamic modeling

The Great Home Speaker

HomePod可以有一個非常高大上的中文名：轟趴，具有絕美外觀，搭載A8處理器。可支持立體環繞聲，也可只朝一個方向發聲。可在HomePod中使用Siri，可以直接對它說話，如控制電器、介紹新聞等。具備Anonymous ID，黑白兩種顏色。

可在我的博客中查看原文