sdk/com.m8test.script.core.api.ui.compose.widget/ExposedDropdownMenuBox

ExposedDropdownMenuBox

interface ExposedDropdownMenuBox<T : Modifier> : Layout<T>

Material Design Exposed Dropdown Menu.

在临时表面上显示一个选择列表。当用户与按钮、操作或其他控件交互时，它们会出现。

Exposed Dropdown Menu，有时也称为“spinner”或“combo box”，在文本字段中显示当前选定的项目，菜单锚定于该字段。 ExposedDropdownMenuBox 期望包含一个 TextField (或 OutlinedTextField) 和一个 ExposedDropdownMenu 作为其内容。

Author

M8Test, [email protected], https://m8test.com

Functions

DisposableEffect

abstract fun DisposableEffect(disposableEffectBuilder: DisposableEffect.() -> Unit)

getCompositionLocal

abstract fun <T> getCompositionLocal(name: String): ProvidableCompositionLocal<T>?

getCompositionLocalValue

abstract fun <V> getCompositionLocalValue(compositionLocal: ProvidableCompositionLocal<V>): V?

获取 compositionLocal 的值

abstract fun getContext(): ScriptContext

获取脚本上下文对象 ScriptContext.

abstract fun LaunchedEffect(launchedEffectBuilder: LaunchedEffect.() -> Unit)

LocalColorScheme

abstract fun LocalColorScheme(): ProvidableCompositionLocal<ColorScheme>

LocalContentColor

abstract fun LocalContentColor(): ProvidableCompositionLocal<Color>

abstract fun LocalShapes(): ProvidableCompositionLocal<Shapes>

abstract fun LocalTextStyle(): ProvidableCompositionLocal<TextStyle>

LocalTypography

abstract fun LocalTypography(): ProvidableCompositionLocal<Typography>

abstract fun setContent(contentBuilder: ExposedDropdownMenuBoxScopeSlot.() -> Unit)

设置此 ExposedDropdownMenuBox 的内容。

abstract fun setExpanded(value: Boolean)

设置菜单是否展开。

abstract fun setModifier(modifierBuilder: T.() -> Unit)

setOnExpandedChange

abstract fun setOnExpandedChange(callback: (Boolean) -> Unit)

设置当菜单被点击并且展开状态改变时调用的回调。

abstract fun setVisible(visible: Boolean)

设置显示/隐藏当前 Composable

abstract fun SideEffect(sideEffectBuilder: SideEffect.() -> Unit)

trackAggregatedState

abstract fun trackAggregatedState(state: AggregatedState)

设置所有需要用到的聚合状态,例如 DrawerState, BottomSheetState 等

trackSingleState

abstract fun trackSingleState(state: SingleState)

添加当前 Composable 需要监听的状态，如果状态改变的话 Composable 会重组