v82.0.0

In this major release, we dropped support for iOS 8 in all components. We also introduced new method and properties for AppBar, BottomSheet and NavigationDrawer.

Breaking changes

This release drops support for iOS 8 and the library, catalog, examples, and demos may no longer build for iOS 8 targets or may crash even if building succeeds. Clients will need to set their minimum deployment targets to iOS 9 or later.

New features

Add support for MDCAppBarNavigationController delegate to pick a tracking scroll view

An optional delegate method was added to allow clients to specify the controller's tracking scroll view. The delegate may return nil if no appropriate tracking scroll view is present.

Swift

func appBarNavigationController(_ navigationController: MDCAppBarNavigationController,
                              trackingScrollViewFor trackingScrollViewForViewController: UIViewController,
                              suggestedTrackingScrollView: UIScrollView?) -> UIScrollView? {
  return trackingScrollView
}

Objective-C

- (UIScrollView *)appBarNavigationController:(MDCAppBarNavigationController *)navigationController
                  trackingScrollViewForViewController:(UIViewController *)viewController
                          suggestedTrackingScrollView:(UIScrollView *)scrollView {
  return self.trackingScrollView;
}

flashScrollIndicators in BottomSheet

MDCBottomSheetController has a new API that will flash the scroll indicators when the view appears.

Swift

bottomSheet.shouldFlashScrollIndicatorsOnAppearance = true;

Objective-C

self.bottomSheet.shouldFlashScrollIndicatorsOnAppearance = YES;

maximumInitialDrawerHeight in NavigationDrawer

Clients can now override the initial drawer height on MDCBottomDrawerViewController with a desired height in points.

Swift

bottomDrawer.maximumInitialDrawerHeight = 1000;

Objective-C

self.bottomDrawer.maximumInitialDrawerHeight = 1000;

API changes

AppBar

MDCAppBarNavigationControllerDelegate

new method: -appBarNavigationController:trackingScrollViewForViewController:suggestedTrackingScrollView: in MDCAppBarNavigationControllerDelegate

BottomSheet

MDCBottomSheetController

new property: shouldFlashScrollIndicatorsOnAppearance in MDCBottomSheetController

NavigationDrawer

MDCBottomDrawerViewController

new property: maximumInitialDrawerHeight in MDCBottomDrawerViewController

MDCBottomDrawerPresentationController

new property: maximumInitialDrawerHeight in MDCBottomDrawerPresentationController

Tabs+Theming

New extension.

Component changes

Multi-component breaking changes

• Breaking: Drop support for iOS 8 in all components. (#7135) (featherless)

Changes

AppBar

• Add support for MDCAppBarNavigationController delegate to pick a tracking scroll view. (#7015) (featherless)
• Update AppBar theming extension docs. (#7125) (Wenyu Zhang)

BottomNavigation

• Adds private method to retrieve tab bar item for point (#7086) (Eric Lee)

BottomSheet

• Add API to flashScrollIndicators (#7127) (Cody Weaver)

Buttons

• Add snapshot test for new Ripple behavior (#7104) (Cody Weaver)

Dialogs

• Correct snapshot test layout (#7134) (Robert Moore)
• Dialog Urdu snapshot (#7139) (Wenyu Zhang)
• Layout MDC Dialogs correctly for tall fonts. (#7126) (Wenyu Zhang)
• fix dialog snapshot tests not using preferredContentSize. (#7128) (Wenyu Zhang)

NavigationDrawer

• Add snapshot tests (#7136) (Robert Moore)
• Added support for customizing the initial drawer height factor (#7112) (Yarden Eitan)
• remove dependency on MDCBottomDrawerContainerViewController (#7138) (Yarden Eitan)

Tabs

• Add theming extension for Tabs (#7089) (Wenyu Zhang)

TextFields

• Change wording on MDCTextInputController theming extensions doc comments (#7107) (Andrew Overton)
• Outlined Textfield Theming Extension (#7082) (Andrew Overton)
• Updates to MDCContainedInputView and SimpleTextField (#6904) (Andrew Overton)

Multi-component changes

• Fix some CGFloat conversion. (#7130) (Wenyu Zhang)