2 whats-new-in-ios7-m2-xcode-slides

What’s new in iOS7
Xcode
Jon Flanders
@jonflanders

Tuesday, September 3, 13

What You Will Learn


What You Will Learn
§ The new features in Xcode5 that give you powerful tools for developing
for iOS7


UI Improvements


UI Improvements
§ Tool bar 30% smaller


UI Improvements
§ Documentation breaks out into its own dedicated window


UI Improvements
o

Support for tabs


UI Improvements
o
o

Support for tabs
Enhanced bookmark support


UI Improvements
o
o
o

Support for tabs
Easy share of items via email or message


UI Improvements
o
o
o

Support for tabs

§ Simplified “Open Quickly” dialog


UI Improvements
o
o
o

Support for tabs

§ Simplified “Open Quickly” dialog
§ Refined search navigator


Project Templates


Project Templates
§ One new project template


Project Templates
o

Sprite Kit Game


Project Templates
o

Sprite Kit Game

§ Under iOS project templates, no more options for...


Project Templates
o

Sprite Kit Game

o

...using ARC or not – ARC is on by default


Project Templates
o

Sprite Kit Game

o
o

...using ARC or not – ARC is on by default
...not using Storyboards – Storyboard support is turned on by default


Automatic Configuration of Profiles


§ Accounts (under preferences) enables you to add multiple developer
program Apple IDs


program Apple IDs
§ You pick the correct team on project settings


program Apple IDs
o

If anything is wrong, Xcode fixes it for you automatically


program Apple IDs
o
o

No having to mess with provisioning profile downloads


program Apple IDs
o
o


§ Dev profile is exportable for working on new or multiple machines


program Apple IDs
o
o


o

Import Dev profile


program Apple IDs
o
o


o

Import Dev profile

§ View team details page


program Apple IDs
o
o


o

Import Dev profile

§ View team details page
o

Export one identity


Capabilities


Capabilities
§ In the past, configuring a capability usually involved multiple steps


Capabilities
o

Modifying provisioning profile


Capabilities
o
o

Modifying Info.plist and/or entitlement files


Capabilities
o
o


§ Turn on via the new UI and the feature is automatically configured


Capabilities
o
o


§ Turn on via the new UI and the feature is automatically configured
o

iCloud, Game Center, Passbook, In-App Purchases, etc.


Compiler Enhancements


§ LLVM only


§ LLVM only
o

No more gcc


§ LLVM only
o

No more gcc

§ New feature – Modules


§ LLVM only
o

No more gcc

o

@import (binary) replaces #import (textual) for framework libraries


§ LLVM only
o

No more gcc

o
o

Automatically imports other modules as needed


§ LLVM only
o

No more gcc

o
o


§ Compiler


§ LLVM only
o

No more gcc

o
o


§ Compiler
o

Auto-vectorizer


§ LLVM only
o

No more gcc

o
o


§ Compiler
o
o

Auto-vectorizer
Doc comments appear automatically in quick help for your APIs


§ LLVM only
o

No more gcc

o
o


§ Compiler
o
o

Auto-vectorizer

§ Static analyzer much more powerful


§ LLVM only
o

No more gcc

o
o


§ Compiler
o
o

Auto-vectorizer

§ Static analyzer much more powerful
o

Can now analyze just a single file


Command Line Tools


Command Line Tools
§ No longer a separate download


Command Line Tools
§ No longer a separate download
§ Tools updated automatically with Xcode


Performance


Performance
§ Xcode has moved to ARC


Performance
o

Contributes to its overall performance enhancements


Performance
o


§ 2x improvement in nib compilation, searching, and incremental rebuild


Performance
o


§ 5x improvement for device detection


Performance
o


§ 5x improvement for device detection
§ 4x improvement in new tab creation


Interface Builder


Interface Builder
§ Complete redesign of Auto Layout in IB


Interface Builder
o

Nothing happens until you tell it to


Interface Builder
o
o

Can automatically add missing constraints


Interface Builder
o
o


§ Preview using the Assistant Editor


Interface Builder
o
o


o

Can see how your UI will work in diﬀerent devices


Interface Builder
o
o


o

Can see how your UI will work in diﬀerent devices

§ IB upgrades your nibs to iOS7/Xcode 5 format only if you give your assent


Asset Catalog


Asset Catalog
§ Image management has always been complicated in Xcode


Asset Catalog
o

Especially after retina displays and iPad was added for iOS project


Asset Catalog
o


§ Based on naming convention


Asset Catalog
o


o

Default.png - Default@2x.png - Default-568@2x.png etc. etc.


Asset Catalog
o


o
o

AKA image name-mangling hell


Asset Catalog
o


o
o


§ “Asset Catalog” is a single entry in the Xcode project navigator


Asset Catalog
o


o
o


o

Maintains list of images, including AppIcon and LaunchImages


Asset Catalog
o


o
o


o
o

For each image, it shows all resolutions of the image


Asset Catalog
o


o
o


o
o
o

For each image, it shows all resolutions of the image
Name isn’t important


Image Slicing


Image Slicing
§ Xcode now has built-in image slicing for buttons


Image Slicing
§ Will automatically suggest ways to slice


Image Slicing
§ Will automatically suggest ways to slice
o

You can accept, or manually change it


Debugger


Debugger
§ LLVM-LLDB only


Debugger
o

LLVM-GDB gone


Debugger
o

LLVM-GDB gone

§ Debug gauges


Debugger
o

LLVM-GDB gone

§ Debug gauges
o

Some performance information right inside of Xcode


Debugger
o

LLVM-GDB gone

§ Debug gauges
o
o

Less than 1% overhead


Debugger
o

LLVM-GDB gone

§ Debug gauges
o
o
o

Instruments still has more information


Debugger
o

LLVM-GDB gone

§ Debug gauges
o
o
o
o

Can get to Instruments directly from gauges detail page


Debugger
o

LLVM-GDB gone

§ Debug gauges
o
o
o
o


§ Breakpoints


Debugger
o

LLVM-GDB gone

§ Debug gauges
o
o
o
o


§ Breakpoints
o

Breakpoint oﬀ button in debug menu


Debugger
o

LLVM-GDB gone

§ Debug gauges
o
o
o
o


§ Breakpoints
o


§ Data tips inline


Debugger
o

LLVM-GDB gone

§ Debug gauges
o
o
o
o


§ Breakpoints
o


o

Info prints description


Debugger
o

LLVM-GDB gone

§ Debug gauges
o
o
o
o


§ Breakpoints
o


o
o

Graphical resources


Debugger
o

LLVM-GDB gone

§ Debug gauges
o
o
o
o


§ Breakpoints
o


o
o

Graphical resources

§ Show View Frames and Drawing in debug menu


Debugger
o

LLVM-GDB gone

§ Debug gauges
o
o
o
o


§ Breakpoints
o


o
o

Graphical resources

§ Show View Frames and Drawing in debug menu
o

For AppKit (OSX) apps only


Static Analyzer


Static Analyzer
§ New analysis checks


Static Analyzer
§ Deeper Objective-C analysis


Static Analyzer
§ Deeper Objective-C analysis
§ C++ constructors


Static Analyzer
§
§
§
§

New analysis checks
Deeper Objective-C analysis
C++ constructors
Analyze a single file


Testing


Testing
§ Test Navigator


Testing
o

Command-U to run all tests


Testing
o
o

You can run just one test at a time if you want


Testing
o
o


§ XCTest


Testing
o
o


§ XCTest
o

Replaces OCTest


Testing
o
o


§ XCTest
o
o

Replaces OCTest
Can run them from the command line


Testing
o
o


§ XCTest
o
o

Replaces OCTest
Can run them from the command line

§ Related files can be pulled up automatically with the Assistant Editor


Source Control


Source Control
§ New nib file support supports auto-merging


Source Control
o

Finally!!!!!!!


Source Control
o

Finally!!!!!!!

§ Direct support for branch-based development


Source Control
o

Finally!!!!!!!

§ Source control menu


Source Control
o

Finally!!!!!!!

§ Source control menu
§ Per-line blame


Source Control
o

§
§
§
§

Finally!!!!!!!

Direct support for branch-based development
Source control menu
Per-line blame
Source control configuration


Source Control
o

§
§
§
§
§

Finally!!!!!!!

Source control menu
Per-line blame
Check out from main screen


Source Control
o

§
§
§
§
§
§

Finally!!!!!!!

Source control menu
Per-line blame
Check out from main screen
Git repository supported on OSX Server


Bot
§ Autonomous agent that runs on OSX Server


Bot
§ Can execute any project scheme


Bot
o

Builds


Bot
o
o

Builds
Tests


Bot
o
o

Builds
Tests

§ Can execute on simulators and/or devices


Bot
o
o

Builds
Tests

§ Runs automatically on commit or on a schedule


Bot
o
o

Builds
Tests

o

Continuous integration (CI) workflow possible with no third-party software


Bot
o
o

Builds
Tests

o


§ Bot reports integrated into Xcode


Bot
o
o

Builds
Tests

o


§ Integration reports also right in Xcode


Bot
o
o

Builds
Tests

o


o

Can see commits and go right to blame


Bot
o
o

Builds
Tests

o


o

Can see commits and go right to blame

§ Team scoreboard


Summary


Summary
§ Improvements in Xcode make it much easier to build apps for iOS7


Summary
§ Improvements in Xcode make it much easier to build apps for iOS7
§ New unit test and CI features make team development with Xcode much
smoother


2 whats-new-in-ios7-m2-xcode-slides

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