v58.0.0

This major release focused on accessibility and removing property coding/encoding from a variety of
components. It also fixed a bug related to AppBar/FlexibleHeader top layout guide behavior on
pre-iOS 11 devices.

Breaking changes

Property encoding/decoding has been removed from a majority of the components, along with any
related explicit conformances to NSCoding and NSSecureCoding. See the
tracking project to
learn more about the status of this work.

MDCNavigationBar's deprecated useFlexibleTopBottomInsets has been removed.

New features

A variety of accessibility documentation has been added to many of the components.

BottomNavigation has new parameters for the top padding of the nav bar items and the vertical
spacing between the icon and title.

API changes

BottomNavigation

MDCBottomNavigationBar

new property: itemsContentInsets in MDCBottomNavigationBar

new property: itemsContentHorizontalMargin in MDCBottomNavigationBar

new property: itemsContentVerticalMargin in MDCBottomNavigationBar

NavigationBar

MDCNavigationBar

removed property: useFlexibleTopBottomInsets in MDCNavigationBar

Component changes

AppBar

Breaking changes

• Breaking: Mainline the YES behaviour for useFlexibleTopBottomInsets, and remove the already deprecated API. (#4570) (Ali Rabbani)
• Breaking: [FlexibleHeader] Remove NSCoding support. (#4554) (featherless)
• Breaking: [NavigationBar] Remove NSCoding support. (#4560) (featherless)

Changes

• Add docs on making navigationItems accessible with MDCAppBars (#4540) (Andrew Overton)
• [Catalog] Enable AppBar's isTopLayoutGuideAdjustmentEnabled in all examples. (#4537) (featherless)

Ink

Changes

• Make example accessible. (#4506) (Cody Weaver)

Buttons

Breaking changes

• Breaking: Remove NSCoding support. (#4565) (featherless)

Changes

• Disable FAB animation for VoiceOver (#4535) (Robert Moore)
• Fix button README (#4547) (Cody Weaver)
• Make accessibility docs match other components (#4501) (Cody Weaver)
• Removed internal links from docs. (#4559) (Randall Li)
• [Catalog] Enable AppBar's isTopLayoutGuideAdjustmentEnabled in all examples. (#4537) (featherless)

ButtonBar

Breaking changes

• Breaking: Remove NSCoding support. (#4553) (featherless)

TextFields

Changes

• Add accessibility docs for MDCTextField (#4498) (Andrew Overton)
• Fix clear button render scale (#4539) (Robert Moore)

Chips

Breaking changes

• Breaking: Remove NSCoding support. (#4549) (featherless)

Changes

• Add accessibilityHint to clear button in chips example (#4504) (Andrew Overton)

Cards

Breaking changes

• Breaking: Remove NSCoding support. (#4548) (featherless)

Changes

• Add accessibility documentation (#4454) (Galia Kaufman)

Slider

Changes

• Add a11y doc (#4536) (Cody Weaver)
• Support custom increment and decrement levels (#4534) (Cody Weaver)

NavigationBar

Breaking changes

• Breaking: Remove NSCoding support. (#4560) (featherless)

Changes

• Mainline the YES behaviour for useFlexibleTopBottomInsets, and remove the already deprecated API. (#4570) (Ali Rabbani)

ShadowLayer

Breaking changes

• Breaking: Remove encoding/decoding behavior for custom properties (#4546) (featherless)

ActivityIndicator

Changes

• Change override of AccessibilityLabel with setting it to a default. (#4564) (Randall Li)
• Removed outdated comment. (#4561) (featherless)

BottomSheet

Changes

• Inform delegate of accessibility escape dismissal (#4571) (Andrew Overton)
• [Catalog] Enable AppBar's isTopLayoutGuideAdjustmentEnabled in all examples. (#4537) (featherless)

Dialogs

Changes

• Update A11y docs (#4509) (ianegordon)
• make accessibilityPerformEscape honor MDCDialogPresentationController.dismissOnBackgroundTap (#4508) (Andrew Overton)

BottomNavigation

Changes

• Add a11y to README (#4497) (Cody Weaver)
• Give MDCBottomNavigationBar a TabBar accessibilityTrait (#4510) (Andrew Overton)
• Parameterize top padding and vertical margin (#4432) (John Detloff)
• Removed internal links from docs. (#4558) (Randall Li)

AnimationTiming

Changes

• [FlexibleHeader] Enforce top layout guide adjustment on pre-iOS 11 devices. (#4573) (featherless)

HeaderStackView

Breaking changes

• Breaking: Remove NSCoding support. (#4544) (featherless)

FlexibleHeader

Breaking changes

• Breaking: Update top layout behavior to match documentation. (#4577) (featherless)
• Breaking: Remove NSCoding support. (#4554) (featherless)

Changes

• Enforce top layout guide adjustment on pre-iOS 11 devices. (#4573) (featherless)

ProgressView

Changes

• Add accessibility docs for MDCProgressView (#4543) (Andrew Overton)