Material Components v59.2.0

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Material Components v59.2.0 Release Notes

• 🚀 This minor release introduces several new improvements to the AppBar component and bug fixes and accessibility improvements to various components.

  🆕 New features

  📚 AppBar's documentation has been updated to reflect all of the most modern APIs and behavioral flags.

  AppBar also now exposes a new MDCAppBarViewController API which is meant to be a more familiar replacement API for MDCAppBar.

  A typical migration diff will look something like so (in Swift):

  // Step 1
  -  let appBar = MDCAppBar()
  +  let appBarViewController = MDCAppBarViewController()
  
  // Step 2
  -    self.addChildViewController(appBar.headerViewController)
  +    self.addChildViewController(appBarViewController)
  
  // Step 3
  -    appBar.addSubviewsToParent()
  +    view.addSubview(appBarViewController.view)
  +    appBarViewController.didMove(toParentViewController: self)
  

  API changes

  AppBar+ColorThemer

  MDCAppBarColorThemer

  🆕 new class method: +applySurfaceVariantWithColorScheme:toAppBarViewController: in MDCAppBarColorThemer

  🆕 new class method: +applyColorScheme:toAppBarViewController: in MDCAppBarColorThemer

  AppBar

  MDCAppBar

  🆕 new property: appBarViewController in MDCAppBar

  MDCAppBarNavigationControllerDelegate

  🆕 new method: -appBarNavigationController:willAddAppBarViewController:asChildOfViewController: in MDCAppBarNavigationControllerDelegate

  MDCAppBarNavigationController

  🆕 new method: -appBarViewControllerForViewController: in MDCAppBarNavigationController

  MDCAppBarContainerViewController

  🆕 new property: appBarViewController in MDCAppBarContainerViewController

  MDCAppBarViewController

  🆕 new class: MDCAppBarViewController

  AppBar+TypographyThemer

  MDCAppBarTypographyThemer

  🆕 new class method: +applyTypographyScheme:toAppBarViewController: in MDCAppBarTypographyThemer

  TextFields

  MDCTextInputController

  🆕 new method: -setHelperText:helperAccessibilityLabel: in MDCTextInputController

  Component changes

  Tabs

  🔄 Changes

  • [Catalog] Conversion to new App Bar View Controller API (#4696) (featherless)

  AppBar

  🔄 Changes

  • 📚 Complete pass at documentation modernization. (#4708) (featherless)
  • Enable inferTopSafeAreaInsetFromViewController on the App Bar in the navigation controller. (#4693) (featherless)
  • Expose MDCAppBarViewController as a replacement for MDCAppBar. (#4695) (featherless)
  • Fix bug where root view controller during initialization of nav controller would not be injected with an App Bar. (#4691) (featherless)
  • Implement setViewControllers on MDCAppBarNavigationController. (#4736) (featherless)
  • Increase likelihood that we detect existing App Bars when auto-injecting. (#4692) (featherless)
  • Rename MDCAppBar.h to MDCAppBarViewController.h. (#4704) (featherless)
  • [Catalog] Conversion to new App Bar View Controller API (#4696) (featherless)

  TextFields

  🔄 Changes

  • Add setHelperText:helperAccessibilityLabel (#4661) (Andrew Overton)
  • Consider UIUserInterfaceLayoutDirection when drawing outlined text controller outline path (#4719) (Andrew Overton)

  Chips

  🔄 Changes

  • Allow clients to set accessibilityLabel on MDCChipView (#4664) (compositeprimes)

  Snackbar

  🔄 Changes

  • 🚚 Removed unused variable from MDCSnackbarMessageView (#4690) (trungducc)

  BottomAppBar

  🔄 Changes

  • Add a11y guide to README (#4705) (Cody Weaver)
  • [Catalog] Conversion to new App Bar View Controller API (#4696) (featherless)

  NavigationBar

  🔄 Changes

  • ButtonBar example with associated UIButton (#4677) (ianegordon)

  BottomSheet

  🔄 Changes

  • 👍 Examples support accessible scrim (#4711) (Robert Moore)
  • [Catalog] Conversion to new App Bar View Controller API (#4696) (featherless)

  🔊 Dialogs

  🔄 Changes

  • Fix button hit areas to match accessibility (#4684) (Cody Weaver)

  BottomNavigation

  🔄 Changes

  • Fix safe area insets on bottom nav example (#4637) (John Detloff)
  • 🚚 Remove duplicate tab position descriptions (#4679) (Robert Moore)
  • [Catalog] Conversion to new App Bar View Controller API (#4696) (featherless)

  FlexibleHeader

  🔄 Changes

  • Allow additionalSafeAreaInsets to respect contextual top insets. (#4697) (featherless)
  • Fix infinite recursion when observesTrackingScrollViewScrollEvents is enabled. (#4694) (featherless)
  • 🛠 Fixes a layout bug with VoiceOver on that was introduced in v57.0.0 (5dc67c88c06f11761769de1d0bae34ff2c657046). (#4698) (featherless)
  • 📚 [AppBar] Complete pass at documentation modernization. (#4708) (featherless)

  ShadowElevations

  🔄 Changes

  • [Catalog] Conversion to new App Bar View Controller API (#4696) (featherless)

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