Crate cranpose_app_shell 

Modules

accessibility_audit

The checks a screen reader user fails a screen on, run over a placed semantics tree so a test catches them before a person does.

inspector

Developer inspection drawn outside the application’s composition and semantics.

placed_semantics

What a screen reader is told, and where each of those things actually is.

Structs

AppShell

The application: one runtime, one composition, and a surface per window it shows.

DevOptions

Development options for debugging and performance monitoring.

FpsStats

Frame statistics snapshot.

FrameRateBoost

When FrameRatePreference::Auto asks for the display’s fastest rate, following how Android’s views vote a frame-rate category: input, content that moves, and a large view redrawn continuously all vote high. A Cranpose window is one screen-sized view, as a Compose window is, so continuous redraws boost it and intermittent ones, such as a blinking cursor, do not. A boost holds for a few seconds, so the display does not flap between rates.

FrameSchedule

FrameScheduler

FrameUpdateResult

ImeEditorState

Snapshot of the focused text field’s editable state for platform IMEs.

KeyEvent

A keyboard input event.

Modifiers

Keyboard modifier keys held during an input sample.

PointerEventTime

Platform and animation-clock timestamps for one pointer sample.

RootSurface

The shell’s bookkeeping for one root.

RotaryScrollEvent

A rotary scroll event produced by a Wear OS crown or rotating bezel.

SurfaceMut

One surface borrowed together with its shell: the handle a platform delivers a window’s events through and reads a window’s frame from.

WheelScroll

A mouse-wheel or trackpad scroll sample ready for AppShell::wheel_scrolled.

Enums

FramePacingMode

FrameRatePreference

How the platform should vote the display’s frame rate on behalf of the app.

KeyCode

Physical key codes for keyboard input.

KeyEventType

Type of keyboard event.

PointerSource

The kind of physical device that produced a pointer event.

RootId

Names a root surface of the app: the primary window, or a window root declared with Modifier::window_root by the id given there.

Constants

DEFAULT_ROTARY_SCROLL_FACTOR_DP

Android’s default vertical scroll factor expressed in density-independent pixels.

Traits

PlatformFrameDriver

PlatformTextInputHandler

Callbacks a platform installs to control its on-screen keyboard.

Functions

default_root_key

rotary_scroll_pixels_from_detents

Converts a raw Android AXIS_SCROLL detent value into pixels using Compose’s sign convention: positive detents (crown turned up/away) produce a negative pixel amount.