scale-zoomable-view/com.jvziyaoyao.scale.zoomable.zoomable/ZoomableViewState

ZoomableViewState

open class ZoomableViewState(@FloatRange(from = 1.0) val maxScale: Float = MAX_SCALE_RATE, offsetX: Float = DEFAULT_OFFSET_X, offsetY: Float = DEFAULT_OFFSET_Y, scale: Float = DEFAULT_SCALE, rotation: Float = DEFAULT_ROTATION, animationSpec: AnimationSpec<Float>? = null) : CoroutineScope

viewer状态对象，用于记录compose组件状态

Parameters

offsetX

X轴偏移量

offsetY

Y轴偏移量

scale

缩放率

rotation

旋转角度

animationSpec

动画窗格

Constructors

ZoomableViewState

constructor(@FloatRange(from = 1.0) maxScale: Float = MAX_SCALE_RATE, offsetX: Float = DEFAULT_OFFSET_X, offsetY: Float = DEFAULT_OFFSET_Y, scale: Float = DEFAULT_SCALE, rotation: Float = DEFAULT_ROTATION, animationSpec: AnimationSpec<Float>? = null)

Types

object Companion

Properties

allowGestureInput

var allowGestureInput: Boolean

var boundScale: Float

var boundX: Pair<Float, Float>

var boundY: Pair<Float, Float>

var centroid: Offset

containerHeight

val containerHeight: Float

var containerSize: MutableState<Size>

val containerWidth: Float

var contentSize: Size

coroutineContext

open override val coroutineContext: CoroutineContext

val decay: DecayAnimationSpec<Float>

val displayHeight: Float

val displaySize: Size

val displayWidth: Float

eventChangeCount

var eventChangeCount: Int

val gestureCenter: MutableState<Offset>

val isSpecified: Boolean

var lastPan: Offset

val maxScale: Float

最大缩放率

val offsetX: Animatable<Float, AnimationVector1D>

val offsetY: Animatable<Float, AnimationVector1D>

val realSize: Size

val rotation: Animatable<Float, AnimationVector1D>

val scale: Animatable<Float, AnimationVector1D>

velocityTracker

var velocityTracker: VelocityTracker

Functions

suspend fun fixToBound()

修正offsetX,offsetY的位置

fun isRunning(): Boolean

判断是否有动画正在运行

fun ZoomableViewState.onGesture(scope: CoroutineScope, center: Offset, pan: Offset, zoom: Float, rotate: Float, event: PointerEvent): Boolean

输入手势事件

fun ZoomableViewState.onGestureEnd(scope: CoroutineScope, transformOnly: Boolean)

标记手势事件结束

fun ZoomableViewState.onGestureStart(scope: CoroutineScope)

标记手势事件开始

suspend fun reset(animationSpec: AnimationSpec<Float> = defaultAnimateSpec)

设置回初始值

resetImmediately

suspend fun resetImmediately()

立即设置回初始值

suspend fun toggleScale(offset: Offset, animationSpec: AnimationSpec<Float> = defaultAnimateSpec)

放大或缩小