TwoRowsTopAppBarOverrideScope

the actions displayed at the end of the top app bar. This should typically be IconButtons. The default layout here is a Row, so icons inside will be placed horizontally.

the app bar's height in its collapsed state. Note that this value might be adjusted to support displaying larger fonts. In case the provided value is Dp.Unspecified or Dp.Infinity, the height will default to TopAppBarDefaults.MediumAppBarCollapsedHeight.

TopAppBarColors that will be used to resolve the colors used for this top app bar in different states. See TopAppBarDefaults.topAppBarColors.

this app bar's height in its expanded state. When a specified scrollBehavior causes the app bar to collapse or expand, this value will represent the total height that the app-bar will expand to. The expanded height is expected to be greater or equal to the collapsedHeight, and the function will throw an IllegalArgumentException otherwise. Note that this value might be adjusted to support displaying larger fonts. In case the provided value is Dp.Unspecified or Dp.Infinity, the height will default to TopAppBarDefaults.MediumFlexibleAppBarWithSubtitleExpandedHeight when an expandedSubtitle is provided, or to TopAppBarDefaults.MediumFlexibleAppBarWithoutSubtitleExpandedHeight when it's not.

the Modifier to be applied to this top app bar

the navigation icon displayed at the start of the top app bar. This should typically be an IconButton or IconToggleButton.

a TopAppBarScrollBehavior which holds various offset values that will be applied by this top app bar to set up its height and colors. A scroll behavior is designed to work in conjunction with a scrolled content to change the top app bar appearance as the content scrolls. See TopAppBarScrollBehavior.nestedScrollConnection.

a lambda for providing an optional subtitle to be displayed in the top app bar in collapsed and expanded states.

a lambda for providing a title to be displayed in the top app bar in collapsed and expanded states. By default a small-app-bar TextStyle is applied to the Composition, and you may override it by wrapping your provided component with a composition local. Note that unlike the large or medium top app bars, the TwoRowsTopAppBar does not append bottom padding to the expanded title Composable by default. Padding should be applied directly to the provided expanded title, or to the subtitle that appears below it.

the horizontal alignment of the title and subtitle

a window insets that app bar will respect.

Behavior function that is called by the TwoRowsTopAppBar component.