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Custom Animated Selectable Item - Jetpack Compose
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import androidx.compose.animation.core.Animatable | |
import androidx.compose.animation.core.Spring | |
import androidx.compose.animation.core.spring | |
import androidx.compose.animation.core.tween | |
import androidx.compose.foundation.border | |
import androidx.compose.foundation.clickable | |
import androidx.compose.foundation.layout.Column | |
import androidx.compose.foundation.layout.Row | |
import androidx.compose.foundation.layout.padding | |
import androidx.compose.foundation.shape.RoundedCornerShape | |
import androidx.compose.material.Icon | |
import androidx.compose.material.IconButton | |
import androidx.compose.material.MaterialTheme | |
import androidx.compose.material.Text | |
import androidx.compose.material.icons.Icons | |
import androidx.compose.material.icons.filled.CheckCircle | |
import androidx.compose.runtime.Composable | |
import androidx.compose.runtime.LaunchedEffect | |
import androidx.compose.runtime.mutableStateOf | |
import androidx.compose.runtime.remember | |
import androidx.compose.ui.Alignment | |
import androidx.compose.ui.Modifier | |
import androidx.compose.ui.draw.clip | |
import androidx.compose.ui.draw.scale | |
import androidx.compose.ui.graphics.Color | |
import androidx.compose.ui.graphics.Shape | |
import androidx.compose.ui.graphics.vector.ImageVector | |
import androidx.compose.ui.text.TextStyle | |
import androidx.compose.ui.text.font.FontWeight | |
import androidx.compose.ui.text.style.TextOverflow | |
import androidx.compose.ui.unit.Dp | |
import androidx.compose.ui.unit.TextUnit | |
import androidx.compose.ui.unit.dp | |
import kotlinx.coroutines.launch | |
@Composable | |
fun SelectableItem( | |
modifier: Modifier = Modifier, | |
selected: Boolean, | |
title: String, | |
titleColor: Color = | |
if (selected) MaterialTheme.colors.primary | |
else MaterialTheme.colors.onSurface.copy(alpha = 0.2f), | |
titleSize: TextUnit = MaterialTheme.typography.h6.fontSize, | |
titleWeight: FontWeight = FontWeight.Medium, | |
subtitle: String? = null, | |
subtitleColor: Color = | |
if (selected) MaterialTheme.colors.onSurface | |
else MaterialTheme.colors.onSurface.copy(alpha = 0.2f), | |
borderWidth: Dp = 1.dp, | |
borderColor: Color = | |
if (selected) MaterialTheme.colors.primary | |
else MaterialTheme.colors.onSurface.copy(alpha = 0.2f), | |
borderShape: Shape = RoundedCornerShape(size = 10.dp), | |
icon: ImageVector = Icons.Default.CheckCircle, | |
iconColor: Color = | |
if (selected) MaterialTheme.colors.primary | |
else MaterialTheme.colors.onSurface.copy(alpha = 0.2f), | |
onClick: () -> Unit | |
) { | |
val scaleA = remember { Animatable(initialValue = 1f) } | |
val scaleB = remember { Animatable(initialValue = 1f) } | |
val clickEnabled = remember { mutableStateOf(true) } | |
LaunchedEffect(key1 = selected) { | |
if (selected) { | |
clickEnabled.value = false | |
val jobA = launch { | |
scaleA.animateTo( | |
targetValue = 0.3f, | |
animationSpec = tween( | |
durationMillis = 50 | |
) | |
) | |
scaleA.animateTo( | |
targetValue = 1f, | |
animationSpec = spring( | |
dampingRatio = Spring.DampingRatioLowBouncy, | |
stiffness = Spring.StiffnessLow | |
) | |
) | |
} | |
val jobB = launch { | |
scaleB.animateTo( | |
targetValue = 0.9f, | |
animationSpec = tween( | |
durationMillis = 50 | |
) | |
) | |
scaleB.animateTo( | |
targetValue = 1f, | |
animationSpec = spring( | |
dampingRatio = Spring.DampingRatioLowBouncy, | |
stiffness = Spring.StiffnessLow | |
) | |
) | |
} | |
jobA.join() | |
jobB.join() | |
clickEnabled.value = true | |
} | |
} | |
Column( | |
modifier = modifier | |
.scale(scale = scaleB.value) | |
.border( | |
width = borderWidth, | |
color = borderColor, | |
shape = borderShape | |
) | |
.clip(borderShape) | |
.clickable(enabled = clickEnabled.value) { | |
onClick() | |
} | |
) { | |
Row( | |
modifier = Modifier.padding(start = 12.dp), | |
verticalAlignment = Alignment.CenterVertically | |
) { | |
Text( | |
modifier = Modifier.weight(8f), | |
text = title, | |
style = TextStyle( | |
color = titleColor, | |
fontSize = titleSize, | |
fontWeight = titleWeight | |
), | |
maxLines = 1, | |
overflow = TextOverflow.Ellipsis | |
) | |
IconButton( | |
modifier = Modifier | |
.weight(2f) | |
.scale(scale = scaleA.value), | |
onClick = { | |
if (clickEnabled.value) { | |
onClick() | |
} | |
} | |
) { | |
Icon( | |
imageVector = icon, | |
contentDescription = "Selectable Item Icon", | |
tint = iconColor | |
) | |
} | |
} | |
if (subtitle != null) { | |
Text( | |
modifier = Modifier | |
.padding(horizontal = 12.dp) | |
.padding(bottom = 12.dp), | |
text = subtitle, | |
style = TextStyle( | |
color = subtitleColor | |
), | |
maxLines = 3, | |
overflow = TextOverflow.Ellipsis | |
) | |
} | |
} | |
} |
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