scale-zoomable-view/com.jvziyaoyao.scale.zoomable.previewer/PreviewerState

PreviewerState

class PreviewerState(scope: CoroutineScope, var defaultAnimationSpec: AnimationSpec<Float> = DEFAULT_SOFT_ANIMATION_SPEC, verticalDragType: VerticalDragType = VerticalDragType.None, scaleToCloseMinValue: Float = DEFAULT_SCALE_TO_CLOSE_MIN_VALUE, val pagerState: SupportedPagerState, itemStateMap: ItemStateMap, val getKey: (Int) -> Any) : DraggablePreviewerState

图片预览的状态与控制对象

Parameters

scope

协程作用域

defaultAnimationSpec

默认动画窗格

verticalDragType

垂直手势类型

scaleToCloseMinValue

下拉关闭的缩小的阈值

pagerState

预览状态

itemStateMap

用于获取transformItemState

getKey

获取当前key的方法

Constructors

constructor(scope: CoroutineScope, defaultAnimationSpec: AnimationSpec<Float> = DEFAULT_SOFT_ANIMATION_SPEC, verticalDragType: VerticalDragType = VerticalDragType.None, scaleToCloseMinValue: Float = DEFAULT_SCALE_TO_CLOSE_MIN_VALUE, pagerState: SupportedPagerState, itemStateMap: ItemStateMap, getKey: (Int) -> Any)

Properties

var animating: Boolean

val canClose: Boolean

val canOpen: Boolean

val containerSize: MutableState<Size>

val currentPage: Int

当前页码

decorationAlpha

val decorationAlpha: Animatable<Float, AnimationVector1D>

defaultAnimationSpec

var defaultAnimationSpec: AnimationSpec<Float>

默认动画窗格

val displayHeight: Animatable<Float, AnimationVector1D>

val displayOffsetX: Animatable<Float, AnimationVector1D>

val displayOffsetY: Animatable<Float, AnimationVector1D>

val displayWidth: Animatable<Float, AnimationVector1D>

draggableContainerState

val draggableContainerState: DraggableContainerState

下拉关闭容器状态

val enterIndex: MutableState<Int?>

val getKey: (Int) -> Any

根据下标获取唯一标识的方法

interactionSource

val interactionSource: InteractionSource

interactionSource

itemContentVisible

val itemContentVisible: MutableState<Boolean>

val mountedFlow: MutableStateFlow<Boolean>

val pagerState: SupportedPagerState

底层SupportedPagerState

val previewerAlpha: Animatable<Float, AnimationVector1D>

val targetPage: Int

目标页码

var visible: Boolean

var visibleTarget: Boolean?

zoomableViewState

val zoomableViewState: MutableState<ZoomableViewState?>

当前viewer的状态

Functions

animateScrollToPage

suspend fun animateScrollToPage(@IntRange(from = 0) page: Int, @FloatRange(from = 0.0, to = 1.0) pageOffset: Float = 0.0f)

动画滚动到指定页面

suspend fun close(exitTransition: ExitTransition? = null)

open suspend fun closeAction(exitTransition: ExitTransition? = null)

suspend fun enterTransform(index: Int, animationSpec: AnimationSpec<Float>? = null)

suspend fun exitTransform(animationSpec: AnimationSpec<Float>? = null)

findTransformItemByIndex

fun findTransformItemByIndex(index: Int): TransformItemState?

suspend fun open(index: Int = 0, enterTransition: EnterTransition? = null)

open suspend override fun openAction(index: Int, enterTransition: EnterTransition?)

suspend fun scrollToPage(@IntRange(from = 0) page: Int, @FloatRange(from = 0.0, to = 1.0) pageOffset: Float = 0.0f)

滚动到指定页面

suspend fun updateState(animating: Boolean, visible: Boolean, visibleTarget: Boolean?)

更新当前的标记状态

suspend fun verticalDrag(pointerInputScope: PointerInputScope)