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import androidx.compose.animation.* | |
import androidx.compose.animation.core.tween | |
import androidx.compose.material.* | |
import androidx.compose.runtime.Composable | |
import androidx.compose.runtime.onCommit | |
import androidx.compose.ui.Modifier | |
@OptIn(ExperimentalAnimationApi::class, ExperimentalMaterialApi::class) | |
@Composable | |
fun <T> AnimatedSwipeDismiss( | |
modifier: Modifier = Modifier, | |
item: T, | |
background: @Composable (isDismissed: Boolean) -> Unit, | |
content: @Composable (isDismissed: Boolean) -> Unit, | |
directions: Set<DismissDirection> = setOf(DismissDirection.EndToStart), | |
enter: EnterTransition = expandVertically(), | |
exit: ExitTransition = shrinkVertically( | |
animSpec = tween( | |
durationMillis = 500, | |
) | |
), | |
onDismiss: (T) -> Unit | |
) { | |
val dismissState = rememberDismissState() | |
val isDismissed = dismissState.isDismissed(DismissDirection.EndToStart) | |
onCommit(dismissState.value) { | |
if (dismissState.value == DismissValue.DismissedToStart) { | |
onDismiss(item) | |
} | |
} | |
AnimatedVisibility( | |
modifier = modifier, | |
visible = !isDismissed, | |
enter = enter, | |
exit = exit | |
) { | |
SwipeToDismiss( | |
modifier = modifier, | |
state = dismissState, | |
directions = directions, | |
background = { background(isDismissed) }, | |
dismissContent = { content(isDismissed) } | |
) | |
} | |
} |
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@Composable | |
fun <T> ListContent( | |
innerPadding: InnerPadding, | |
items: List<T>, | |
onSwipe: (T) -> Unit, | |
onClick: (T) -> Unit | |
) { | |
LazyColumnFor( | |
modifier = modifier.padding(innerPadding), | |
items = items, | |
) { item -> | |
AnimatedSwipeDismiss( | |
item = item, | |
background = { isDismissed -> | |
/** define your background delete view here | |
* possibly: | |
Box( | |
modifier = Modifier.fillMaxSize(), | |
backgroundColor = Color.Red, | |
paddingStart = 20.dp, | |
paddingEnd = 20.dp, | |
gravity = ContentGravity.CenterEnd | |
) { | |
val alpha = animate( if (isDismissed) 0f else 1f) | |
Icon(Icons.Filled.Delete, tint = Color.White.copy(alpha = alpha)) | |
} | |
using isDismissed to control alpha of the icon or content in the box | |
*/ | |
}, | |
content = { /* your item cell (feed your on click here) */ }, | |
onDismiss = { onSwipe(it) } | |
} | |
} |
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