Apple lanseaza Xcode 5.1 rezolvand diverse probleme si implementand o multitudine de functii noi

New Features

Debugging

• Quick Look can be implemented for developer defined classesWhen an instance of a custom class is viewed with Quick Look in the debugger variables view or a data tip, the debugger presents it using a method named -debugQuickLookObject defined in the class implementation. For details on how to use this capability, see Quick Look for Custom Types in the Xcode Debugger. (12723736)
• Log breakpoint actions now print out the logical value of expressions.For example, a log breakpoint action such as "myString = @myString@" now prints the value of myString, rather than the pointer value. (13211695) 

Editing User Interfaces

• Interface Builder documents can contain specific information about new features they use and the OS versions they require, allowing previous versions of Xcode to display better warning messages when trying to open such documents. (7659982)
• Building interfaces in Interface Builder using auto layout offers the full suite of possible constraint types: aspect ratios, proportional sizes and positions, cross attribute alignments, and a new constraint inspector with features for editing nearly all properties of a constraint.
• The Interface Builder constraint Attributes inspector shows a constraint’s items and attributes and allows editing of the attributes. This feature enables the ability to create cross-attribute constraints such as view1.centerY = view2.bottom. (13739009)
• You can use Interface Builder to edit the relation of any type of constraint, including alignment constraints (for instance, view1.leading <= view2.leading) and equal size constraints (for instance, view1.width >= view2.width). (14721954)
• You can create aspect ratio and proportional sizing constraints and edit the multiplier of constraints in Interface Builder. The multiplier can be a decimal number (for example, 0.5), a fraction (for example, 1/2), or an aspect ratio (for example, 1:2). (11935843)
• Constraints attached to ambiguous views in Interface Builder are drawn orange only in the axis with ambiguity. This makes it faster to identify a potential problem in the canvas. (15114120)
• The Interface Builder canvas now displays overlay scrollers when appropriate, based on the “Show scroll bar” setting in the General pane in System Preferences. (10069033)
• The Interface Builder inspector now has support for:
  • NSTableView – floatsGroupRows property (9617000)
  • UISegmentedControl – apportionsSegmentWidthsByContent property (9950528)
  • UITableView – sectionIndexBackgroundColor property (14776025)
  • Setting “Detail” button type for prototype UITableViewCell – editingAccessoryType property (15039987)

Instruments and Symbolication

• Instruments now finds symbols much more reliably.If symbols aren’t showing up automatically, try the following:The instruments command-line tool now supports specifying the simulator SDK and device type using the -w flag. To see a list of the supported simulator configurations as well as attached devices, execute instruments -s devices in a Terminal window. (14996865)
  • When Spotlight indexing is disabled for Xcode derived data, such as when using /tmp, add a global list of additional search paths configured in the Instruments preferences.
  • The context menu for an address now includes the option “Symbolicate with DSYM” to add a specific symbol file.
  • Use the File menu Symbols command to see a more detailed list of the state of individual executables and libraries.
    • Green lights indicate the presence of symbols and source information.
    • Yellow lights indicate libraries with some symbols but can still benefit from locating a dSYM.
    • Red lights indicate situations that prevented symbolication. (14269449)

Scripted installation

• Installing Device SupportRun from the command-line, Xcode.app takes the new command-line argument, -installComponents. When Xcode is run from a command-line script with this option, it installs the required device support packages and then quits. (15127411) 

General

• Emoji and other Unicode surrogate pairs are supported in scheme settings and in project files. (14837623 & 13827044)

Compiler

• As of Apple LLVM compiler version 5.1 (clang-502) and later, the optimization level -O4 no longer implies link time optimization (LTO). In order to build with LTO explicitly use the -flto option in addition to the optimization level flag. (15633276)

Testing

• The gcov tool for code coverage testing has been reimplemented. The new version uses the llvm-cov tool from the LLVM project. It is functionally equivalent to the old version for all significant features. The location of gcov within Xcode has also moved, use xcrun to invoke it. If you find problems, please file bug reports. For this release, you can still use the old version of gcov from GCC, which is available as gcov-4.2. 11919694 updated

Known Issues

Resolved Issues

Deprecations

• OCUnit and the SenTestingKit framework are deprecated and will be removed from a future release of Xcode. Source code using OCUnit generates warnings while being compiled in Xcode 5.1.Migrate to XCTest by using the “Edit > Refactor > Convert to XCTest…” menu command. .
• The ATS framework is deprecated. Source code using ATS APIs will generate warnings while being compiled. For version 10.8, there will be no loss of functionality but there could be areas where performance will suffer.Replace all ATS code (including ATSUI) with CoreText. ATS functionality will be removed in future OS X releases. More information about this change is available inCore Text Programming Guide.