ComposeFoundationFlags

var isAnchoredDraggableTargetValueCalculationFixEnabled: Boolean

With this flag enabled, androidx.compose.foundation.gestures.AnchoredDraggableState.targetValue correctly returns the androidx.compose.foundation.gestures.AnchoredDraggableState.currentValue when no androidx.compose.foundation.gestures.AnchoredDraggableState.anchoredDrag is in progress. Previously, androidx.compose.foundation.gestures.AnchoredDraggableState.targetValue incorrectly returned the last-inserted anchor when there were two or more anchors with the same offset, for example: DraggableAnchors { Expanded at 100f; HalfExpanded at 0f; Hidden at 0f;} Disabling the flag restores this previous behavior.

var isBasicTextFieldHeightInLinesOptimizationEnabled: Boolean

This flag controls performance optimizations related to androidx.compose.foundation.text.BasicTextField's internal calculations of the minimum and maximum height.

var isBasicTextFieldMinSizeOptimizationEnabled: Boolean

This flag controls performance optimizations related to androidx.compose.foundation.text.BasicTextField's internal min height calculations.

var isBasicTextFieldSizeOptimizationEnabled: Boolean

This flag controls performance optimizations related to squashing multiple modifiers responsible for providing default measurement of the androidx.compose.foundation.text.BasicTextField into one.

var isBasicTextFieldStyledTextEnabled: Boolean

This flag controls whether androidx.compose.foundation.text.BasicTextField's formatted text features are enabled.

var isCacheWindowForPagerEnabled: Boolean

With this flag on, Pager will use androidx.compose.foundation.lazy.layout.LazyLayoutCacheWindow as the default prefetching strategy, instead of 1 item in the direction of the scroll. The window used will be 1 view port AFTER the currently composed items, this includes visible and items composed through beyond bounds.

var isCacheWindowLookaheadCheckEnabled: Boolean

This flag controls whether androidx.compose.foundation.lazy.layout.LazyLayoutCacheWindow checks if the number of visible items has changed across iterations without scroll deltas (such as when changing lookahead window sizes) and refills the cache window if needed.

var isDragNodeOffsetDoubleCountingFixEnabled: Boolean

This flag controls whether the legacy nodeOffset logic in DragGestureNode and IndirectPointerInputDragCycleDetector is disabled. Previously, VelocityTracker used local coordinates, necessitating manual point adjustment tracking.

var isDraggableInitialPassConsumptionFixEnabled: Boolean

This flag controls the fix where we prioritize consumption on initial pass in Draggable. If a drag gesture started immediately, it should block subsequent nested gestures because the initial down was consumed.

var isDraggableVelocityTrackerFixEnabled: Boolean

This flag controls whether the fix for velocity tracker usage in Draggable and related classes is enabled to a) properly track velocity per pointer and b) make sure to also take the pointer events into account that don't move at the beginning of the gesture in order to increase the stability of the computed velocity.

var isDraggableZeroDeltaConsumptionEnabled: Boolean

This flag controls the fix where draggable was ignoring and not consuming zero delta events. This caused issues with the gesture pickup feature. When this flag is enabled, zero delta events will be consumed (after a drag gesture has started).

var isInheritedTextStyleEnabled: Boolean

Whether to support inherited text styles. If enabled, text styles set by the styles API will be inherited by text composables contained in a style box.

var isKeepAroundDuringLookaheadDisabled: Boolean

This flag controls whether androidx.compose.foundation.lazy.layout.LazyLayoutCacheWindow only executes keepAroundItems during non-lookahead (approach) measure passes in androidx.compose.foundation.lazy.LazyList, androidx.compose.foundation.lazy.grid.LazyGrid, and androidx.compose.foundation.lazy.staggeredgrid.LazyStaggeredGrid.

var isLazyListItemAnimatorVisibleBoundsFixEnabled: Boolean

This flag controls whether lazy list measure passes calculate firstVisibleIndex and lastVisibleIndex from layout visible items before item placement animations run, preventing moving-away items added by androidx.compose.foundation.lazy.layout.LazyLayoutItemAnimator from corrupting visible item bounds and causing unwanted composition in prefetch or cache window strategies.

var isLinkMinimumTouchTargetSizeZeroEnabled: Boolean

Disable minimum touch target expansion for inline links. Touch target expansion for multi-line links causes incorrect clicks on plain text on the same lines because it uses layout bounds (bounding box of multi-line path) instead of clipped shape.

var isMouseSelectionBetweenTextEnabled: Boolean

This flag controls whether it's possible to start selecting (via the mouse) text in a androidx.compose.foundation.text.selection.SelectionContainer by dragging from the areas between the text selectables.

var isMultiLaneCacheWindowEnabled: Boolean

With this flag on, androidx.compose.foundation.lazy.layout.LazyLayoutCacheWindow will support multi-lane configurations.

var isNewContextMenuEnabled: Boolean

Whether to use the new context menu API and default implementations in SelectionContainer, and all BasicTextFields. If false, the previous context menu that has no public APIs will be used instead.

var isPreferDefaultCacheWindowOverPrefetchStrategyLazyGrid: Boolean

This flag controls whether androidx.compose.foundation.lazy.grid.LazyGrid prefers using the default androidx.compose.foundation.lazy.layout.LazyLayoutCacheWindow over androidx.compose.foundation.lazy.grid.LazyGridPrefetchStrategy.

var isPreferDefaultCacheWindowOverPrefetchStrategyLazyList: Boolean

This flag controls whether androidx.compose.foundation.lazy.LazyList prefers using the default androidx.compose.foundation.lazy.layout.LazyLayoutCacheWindow over androidx.compose.foundation.lazy.LazyListPrefetchStrategy.

var isReverseLayoutNestedScrollConnectionInPagerFixEnabled: Boolean

This flag controls the fix where we correctly dispatch deltas in pager's default pageNestedScrollConnection by considering the role of reverse layout.

var isSelectionAutoScrollEnabled: Boolean

This flag controls whether selecting text in androidx.compose.foundation.text.selection.SelectionContainer causes scrollable ancestors of the text to be scrolled when the selecting pointer is dragged outside the scrollable's viewport.

var isSmartSelectionEnabled: Boolean

Whether to use the new smart selection feature in androidx.compose.foundation.text.selection.SelectionContainer and all androidx.compose.foundation.text.BasicTextFields.

var isUsingCacheWindowInStaggeredGrids: Boolean

With this flag enabled, androidx.compose.foundation.lazy.staggeredgrid.LazyStaggeredGrid layouts will make use of a cache window, either a default cache window or the cache window provided by the user via the composable function arguments.

var isUsingDynamicDefaultCacheWindowInGrids: Boolean

Controls whether androidx.compose.foundation.lazy.grid.LazyVerticalGrid and androidx.compose.foundation.lazy.grid.LazyHorizontalGrid use a dynamic default cache window.

When enabled, the ahead androidx.compose.foundation.lazy.layout.LazyLayoutCacheWindow size dynamically adapts to the average main axis size of visible lines, bounded between 10% and 50% of the viewport, rather than using a static viewport fraction.

var isUsingDynamicDefaultCacheWindowInLists: Boolean

Controls whether androidx.compose.foundation.lazy.LazyColumn and androidx.compose.foundation.lazy.LazyRow use a dynamic default cache window.

When enabled, the ahead androidx.compose.foundation.lazy.layout.LazyLayoutCacheWindow size dynamically adapts to the average size of visible items, bounded between 10% and 50% of the viewport, rather than using a static viewport fraction.

var isUsingDynamicDefaultCacheWindowInStaggeredGrids: Boolean

Controls whether androidx.compose.foundation.lazy.staggeredgrid.LazyVerticalStaggeredGrid and androidx.compose.foundation.lazy.staggeredgrid.LazyHorizontalStaggeredGrid use a dynamic default cache window.

When enabled, the ahead androidx.compose.foundation.lazy.layout.LazyLayoutCacheWindow size dynamically adapts to the average size of visible items, bounded between 10% and 50% of the viewport, rather than using a static viewport fraction.