v85.9.0

This minor release includes new elevation protocols to prepare for Dark Mode, dynamic color
support in several components, and a number of MDCTabBarView features.

New features

Several components support traitCollectionDidChangeBlock to allow clients inject a block for exection when traitCollections
changes. TabBarView allows clients to set preferred layout style.

API changes

ActionSheet

MDCActionSheetController

new property: traitCollectionDidChangeBlock in MDCActionSheetController

ActivityIndicator

MDCActivityIndicator

new property: traitCollectionDidChangeBlock in MDCActivityIndicator

Banner

MDCBannerView

new property: traitCollectionDidChangeBlock in MDCBannerView

BottomAppBar

MDCBottomAppBarView

new property: traitCollectionDidChangeBlock in MDCBottomAppBarView

BottomSheet

MDCBottomSheetController

new property: traitCollectionDidChangeBlock in MDCBottomSheetController

MDCBottomSheetPresentationController

new property: traitCollectionDidChangeBlock in MDCBottomSheetPresentationController

ButtonBar

MDCButtonBar

new property: traitCollectionDidChangeBlock in MDCButtonBar

Cards

MDCCard

new property: traitCollectionDidChangeBlock in MDCCard

MDCCardCollectionCell

new property: traitCollectionDidChangeBlock in MDCCardCollectionCell

Chips

MDCChipView

new property: traitCollectionDidChangeBlock in MDCChipView

Dialogs

MDCAlertController

new property: shadowColor in MDCAlertController

new property: traitCollectionDidChangeBlock in MDCAlertController

MDCDialogPresentationController

new property: dialogShadowColor in MDCDialogPresentationController

new property: traitCollectionDidChangeBlock in MDCDialogPresentationController

Elevation

MDCElevatable

new property: mdc_currentElevation in MDCElevatable

new property: mdc_elevationDidChangeBlock in MDCElevatable

new protocol: MDCElevatable

MDCElevatableOverriding

new property: mdc_overrideBaseElevation in MDCElevatable

new protocol: MDCElevatableOverriding

List

MDCBaseCell

new property: traitCollectionDidChangeBlock in MDCBaseCell

NavigationDrawer

MDCBottomDrawerPresentationController

new property: traitCollectionDidChangeBlock in MDCBottomDrawerPresentationController

MDCBottomDrawerViewController

new property: traitCollectionDidChangeBlock in MDCBottomDrawerViewController

Ripple

MDCRippleView

new property: activeRippleColor in MDCRippleView

removed method: -setActiveRippleColor: in MDCRippleView

Slider

MDCSlider

new property: thumbShadowColor in MDCSlider

Tabs

MDCTabBarView

new enum value: MDCTabBarViewLayoutStyleFixed in MDCTabBarView

new enum value: MDCTabBarViewLayoutStyleScrollable in MDCTabBarView

new enum value: MDCTabBarViewLayoutStyleFixedClusteredCentered in MDCTabBarView

new enum value: MDCTabBarViewLayoutStyleFixedClusteredLeading in MDCTabBarView

new enum value: MDCTabBarViewLayoutStyleFixedClusteredTrailing in MDCTabBarView

new enum: MDCTabBarViewLayoutStyle

new typedef: MDCTabBarViewLayoutStyle

new property: preferredLayoutStyle in MDCTabBarView

new property: selectionChangeAnimationDuration in MDCTabBarView

new property: selectionChangeAnimationTimingFunction in MDCTabBarView

Component changes

ActionSheet

• Add traitCollectionDidChange block (#7929) (Cody Weaver)

ActivityIndicator

• Add traitCollectionDidChange block (#7931) (Cody Weaver)
• Support dynamic color (#7950) (Cody Weaver)

Banner

• Add traitCollectionDidChangeBlock API. (#7948) (Wenyu Zhang)
• Add two test cases with icons. (#7989) (Wenyu Zhang)
• Use Arabic for RTL snapshot test (#8010) (Wenyu Zhang)
• add snapshot test for middle length text with large layout margin. (#7957) (Wenyu Zhang)
• fix layout margin not being considered for all layout styles. (#7956) (Wenyu Zhang)

BottomAppBar

• Add traitCollectionDidChange block (#7930) (Cody Weaver)
• add support for dynamic color. (#7975) (Wenyu Zhang)

BottomNavigation

• Add snapshot tests for Bottom Navigation controller. (#7963) (Robert Moore)
• Controller positions content behind the bar (#7970) (Robert Moore)
• Remove iOS 9 guards. (#7997) (Robert Moore)
• Update example to demonstrate lazy loading. (#7991) (Robert Moore)

BottomSheet

• add traitCollectionDidChangeBlock support. (#7966) (Wenyu Zhang)

ButtonBar

• add traitCollectionDidChangeBlock support. (#7976) (Wenyu Zhang)

Cards

• Add Cards dynamic color support (#7906) (Andrew Overton)
• Add traitCollectionDidChange block to MDCCard (#8006) (Cody Weaver)
• Add traitCollectionDidChange block to MDCCardCollectionCell (#8007) (Cody Weaver)

Chips

• Add Dynamic Color Support for Chips (#7946) (Andrew Overton)
• Add traitCollectionDidChangeBlock (#7980) (Bryan Oltman)

Dialogs

• Add shadow color API (#7911) (Cody Weaver)
• Add traitCollectionDidChangeBlock to MDCAlertController (#7981) (Bryan Oltman)
• Remove iOS 9 guards. (#7998) (Robert Moore)

Elevation

• Add MDCElevation protocol. (#7955) (Cody Weaver)
• Add elevationDidChangeBlock to MDCElevation protocol (#7962) (Cody Weaver)
• Add property mdc_overrideElevation property (#7965) (Cody Weaver)
• Add second protocol for overrides (#8034) (Cody Weaver)
• Add MDCElevationOverride to umbrella header (#8052) (Robert Moore)
• Improve protocol naming (#8055) (Yarden Eitan)
• Add category to UIView (#7969) (Cody Weaver)
• passing self to the elevationDidChangeBlock (#8058) (Yarden Eitan)

FeatureHighlight

• Support dynamic color (#7936) (Bryan Oltman)

FlexibleHeader

• [FlexibleHeader] Add a snapshot for shadow pre iOS 13. (#7941) (Wenyu Zhang)

Ink

• Dynamic color support (#7974) (Yarden Eitan)

List

• Add traitCollectionDidChange block to MDCBaseCell (#8033) (Cody Weaver)

NavigationDrawer

• Add traitCollectionDidChange block (#8008) (Cody Weaver)
• Add traitCollectionDidChange block to presentation controller. (#8009) (Cody Weaver)

private/Snapshot

• add support to change TextInput to RTL mode. (#7986) (Wenyu Zhang)

Ripple

• Add dynamic color support for ripple. (#7968) (Yarden Eitan)
• Turn activeRippleColor into a property (#7949) (Yarden Eitan)
• Fix active ripple layer not using active ripple color. (#8059) (Wenyu Zhang)

Slider

• Add snapshot test for dynamic color with elevation. (#7960) (Wenyu Zhang)
• change track background color. (#7967) (Wenyu Zhang)
• Add shadowColor to support dynamic color behavior. (#7972) (Wenyu Zhang)

Tabs

• Allow clients to set preferred layout style. (#8003) (Robert Moore)
• Drop iOS 9 guards. (#7999) (Robert Moore)
• Expose selection change animation properties. (#7944) (Robert Moore)
• Support Fixed Clustered layout when Justified won't fit. (#7908) (Robert Moore)
• Support Leading, Trailing Fixed Clustered Layout styles. (#8002) (Robert Moore)
• Tabs dynamic color (#7977) (Andrew Overton)

TextFields

• Remove iOS 9 guards. (#8000) (Robert Moore)
• Use new Snapshot RTL methods. (#7994) (Robert Moore)

Multi-component changes

• Drop iOS 9 guards for Swift. (#8001) (Robert Moore)
• Remove RTL snapshot method overrides. (#7996) (Robert Moore)