Created
February 23, 2022 08:24
-
-
Save jershell/b6df121a9738bf0a8a4b98b7032e44b9 to your computer and use it in GitHub Desktop.
compose swipe to remove
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| package com.github.gismenu.ui.components | |
| import androidx.compose.animation.animateContentSize | |
| import androidx.compose.animation.core.animateIntAsState | |
| import androidx.compose.foundation.gestures.detectHorizontalDragGestures | |
| import androidx.compose.foundation.layout.Box | |
| import androidx.compose.foundation.layout.fillMaxSize | |
| import androidx.compose.foundation.layout.offset | |
| import androidx.compose.runtime.* | |
| import androidx.compose.ui.Modifier | |
| import androidx.compose.ui.input.pointer.pointerInput | |
| import androidx.compose.ui.layout.onGloballyPositioned | |
| import androidx.compose.ui.unit.IntOffset | |
| import kotlin.math.abs | |
| import kotlin.math.roundToInt | |
| enum class SwipeState { | |
| ExpandedToLeft, ExpandedToRight, Collapsed | |
| } | |
| @Composable | |
| fun SwipeToRemove( | |
| modifier: Modifier = Modifier, | |
| onRemove: () -> Unit = {}, | |
| onChangedOpenPart: (percent: Int, offsetX: Int) -> Unit = { _, _ -> }, | |
| behindContent: @Composable () -> Unit = {}, | |
| content: @Composable () -> Unit = {} | |
| ) { | |
| val hOffset = remember { mutableStateOf(0) } | |
| val h = remember { mutableStateOf(0) } | |
| var state by remember { mutableStateOf(SwipeState.Collapsed) } | |
| var useHandleOffset by remember { mutableStateOf(false) } | |
| val offsetAnimation = animateIntAsState( | |
| when (state) { | |
| SwipeState.ExpandedToRight -> { | |
| h.value | |
| } | |
| SwipeState.ExpandedToLeft -> { | |
| -h.value | |
| } | |
| SwipeState.Collapsed -> hOffset.value | |
| }, | |
| finishedListener = { | |
| when (state) { | |
| SwipeState.ExpandedToRight -> { | |
| onRemove() | |
| } | |
| SwipeState.ExpandedToLeft -> { | |
| onRemove() | |
| } | |
| SwipeState.Collapsed -> {} | |
| } | |
| } | |
| ) | |
| Box( | |
| modifier = modifier | |
| .onGloballyPositioned { | |
| h.value = it.size.width | |
| } | |
| .animateContentSize() | |
| .pointerInput(Unit) { | |
| detectHorizontalDragGestures( | |
| onDragStart = { | |
| useHandleOffset = true | |
| }, | |
| onDragEnd = { | |
| // anim.animateTo() | |
| useHandleOffset = false | |
| println("hOffset.value = ${hOffset.value}") | |
| val p = (abs(hOffset.value) * 100) / h.value | |
| state = if (p > 25) { | |
| if (hOffset.value > 0) { | |
| SwipeState.ExpandedToRight | |
| } else { | |
| SwipeState.ExpandedToLeft | |
| } | |
| } else { | |
| hOffset.value = 0 | |
| SwipeState.Collapsed | |
| } | |
| }, | |
| onHorizontalDrag = { change, dragAmount -> | |
| hOffset.value = hOffset.value + dragAmount.roundToInt() | |
| val p = (abs(hOffset.value) * 100) / h.value | |
| onChangedOpenPart(p, hOffset.value) | |
| } | |
| ) | |
| }, | |
| content = { | |
| Box(Modifier.fillMaxSize()) { | |
| behindContent() | |
| } | |
| Box( | |
| Modifier | |
| .fillMaxSize() | |
| .offset { | |
| if (useHandleOffset) { | |
| IntOffset(x = hOffset.value, y = 0) | |
| } else { | |
| IntOffset(x = offsetAnimation.value, y = 0) | |
| } | |
| }) { | |
| content() | |
| } | |
| } | |
| ) | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment