What's is new in Xcode 9?

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What's new in Xcode 9?

• Features and updates

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Content

• What is Xcode 9
• 2. Highlights of Xcode 9
• a. Asset Catalogs
• b. Building and Linking
• c. Capabilities
• d. Debugging
• e. Instruments

• f. Interface Builder
• g. Refactoring
• h. Simulator
• i. Compatibility
• 3. Conclusion

Highlights of Xcode 9
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1. What is Xcode 9

• Xcode is the complete developer toolset used to
• create apps for Apple TV, Apple Watch, iPad,
  iPhone, and Mac. Xcode 9 includes overall quality
  improvements as well as extensive new features.

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2. Highlights of Xcode 9

• Refactoring
• Super Fast Search
• Debugging
• Source Control
• Xcode Server Built - in
• New Playground templates
• New build System

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a. Asset Catalogs

• Name colors support.
• Added wide gamut app icons.
• Added a larger iOS marketing to the App icon set.
• Added support for HEIF images.

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b. Building and Linking

• Added a preview of a new build system written in
  swift.
• Provides higher reliability.
• Improves the performance on overall build system.
• To chose into the new build system for a project
  or workspace, choose File gt Project settings or
  file gt Workspace settings, and then choose New
  build system (Preview) for the Build system type.
  

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c. Capabilities

• New configurations for iOS hotspot and for
  multi-path - TCP.
• New background mode for watchOS for use with
  audio recording and turn by turn directions.
• New mode for tvOS background fetch.

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d. Debugging

• Network debugging for iOS and tvOS device
• Debug iOS and tvOS device over Wifi or wired
  networks
• Connect via Bonjour or enter an IP address.
• IOS devices need to be plugged-in once to enable
  network debugging.
• Main Thread Checker
• Detects Appkit, UIkit, and WebKit method call
  that are not made on the main thread.
• Automatically enabled during debugging.
• Main Thread Checker works with Swift and C.
• Enhanced the breakpoint navigator with deep
  filtering.
• Added visual indicators for modified
  breakpoints.
• Enhanced iOS energy gauge.

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e. Instruments

• New split view for pinning graphs in the graphing
  area of a trace document.
• Added an All strategy and moved the strategy
  picker to a new toolbar at the top of the trace
  document.
• Enhanced metal debugging instrument.
• Metal system trace VR support for viewing events
  such as compositor activity, pose queries, and
  more.

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f. Interface Builder

• Added support for using named colors from the
  asset catalog.
• Added support for the new margin and baseline
  view constraints.
• Added support for auto layout safe-area guides.
• Added support for full screen watchOS apps.

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g . Refactoring

• Global rename across Swift, C, Objective C.
• View all the changes in one place.
• Converts method signatures between Swift and
  Objective C formats.
• Updates properties, getters, setters, and
  synthesized as needed.

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h. Simulator

• Multiple concurrent simulators.
• Share information with Simulator from Maps,
  Photos, and Safari.
• Record videos of simulators.
• Get help by choosing Help gt Simulator Help.

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i. Swift

• One compiler for Swift 4 and Swift 3, Swift 4 and
  Swift 3 targets can be compiled together in the
  same project.
• Improve migrator experience that support
  migrating only select targets to Swift 4.
• Faster generic code and decreased code size.

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j. Compatibility

• Xcode 9.0 requires a Mac running macOS Sierra
  10.12.4 later.

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3. Conclusion

• Anyway Xcode 9 is awesome !!!!

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