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Merge pull request #307 from antonshilov/bottom-tab
Bottom tab navigation sample
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95 changes: 95 additions & 0 deletions
95
...andbox/src/main/kotlin/com/bumble/appyx/sandbox/client/spotlight/SpotlightFaderThrough.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,95 @@ | ||
| package com.bumble.appyx.sandbox.client.spotlight | ||
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| import android.annotation.SuppressLint | ||
| import androidx.compose.animation.core.FastOutSlowInEasing | ||
| import androidx.compose.animation.core.Transition | ||
| import androidx.compose.animation.core.animateFloat | ||
| import androidx.compose.animation.core.tween | ||
| import androidx.compose.runtime.Composable | ||
| import androidx.compose.runtime.remember | ||
| import androidx.compose.ui.Modifier | ||
| import androidx.compose.ui.composed | ||
| import androidx.compose.ui.draw.alpha | ||
| import androidx.compose.ui.draw.scale | ||
| import com.bumble.appyx.core.navigation.transition.ModifierTransitionHandler | ||
| import com.bumble.appyx.core.navigation.transition.TransitionDescriptor | ||
| import com.bumble.appyx.navmodel.spotlight.Spotlight | ||
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|
||
| /** | ||
| * Fade through transition from material design | ||
| * [Specification](https://m2.material.io/design/motion/the-motion-system.html#fade-through) | ||
| */ | ||
| class SpotlightFaderThrough<T> : ModifierTransitionHandler<T, Spotlight.State>() { | ||
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| @SuppressLint("ModifierFactoryExtensionFunction") | ||
| override fun createModifier( | ||
| modifier: Modifier, | ||
| transition: Transition<Spotlight.State>, | ||
| descriptor: TransitionDescriptor<T, Spotlight.State> | ||
| ): Modifier = modifier.composed { | ||
| val alpha = transition.animateFloat( | ||
| transitionSpec = { | ||
| when (targetState) { | ||
| Spotlight.State.ACTIVE -> tween( | ||
| durationMillis = enterDuration, | ||
| delayMillis = exitDuration, | ||
| easing = FastOutSlowInEasing | ||
| ) | ||
|
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||
| Spotlight.State.INACTIVE_BEFORE, | ||
| Spotlight.State.INACTIVE_AFTER -> tween( | ||
| durationMillis = exitDuration, | ||
| easing = FastOutSlowInEasing | ||
| ) | ||
| } | ||
|
|
||
| }, | ||
| targetValueByState = { | ||
| when (it) { | ||
| Spotlight.State.ACTIVE -> 1f | ||
| else -> 0f | ||
| } | ||
| }, label = "" | ||
| ) | ||
| val scale = transition.animateFloat( | ||
| transitionSpec = { | ||
| when (targetState) { | ||
| Spotlight.State.ACTIVE -> tween( | ||
| durationMillis = enterDuration, | ||
| delayMillis = exitDuration, | ||
| easing = FastOutSlowInEasing | ||
| ) | ||
|
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||
| Spotlight.State.INACTIVE_BEFORE, | ||
| Spotlight.State.INACTIVE_AFTER -> tween( | ||
| durationMillis = exitDuration, | ||
| easing = FastOutSlowInEasing | ||
| ) | ||
| } | ||
|
|
||
| }, | ||
| targetValueByState = { | ||
| when (it) { | ||
| Spotlight.State.ACTIVE -> 1f | ||
| else -> 0.92f | ||
| } | ||
| }, label = "" | ||
| ) | ||
|
|
||
| if (transition.targetState == Spotlight.State.ACTIVE) { | ||
| scale(scale.value).alpha(alpha.value) | ||
| } else { | ||
| alpha(alpha.value) | ||
| } | ||
|
|
||
| } | ||
|
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| companion object { | ||
| private const val enterDuration = 210 | ||
| private const val exitDuration = 90 | ||
| } | ||
| } | ||
|
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| @Composable | ||
| fun <T> rememberSpotlightFaderThrough(): ModifierTransitionHandler<T, Spotlight.State> = | ||
| remember { SpotlightFaderThrough() } |