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Update how we animate in compose #7

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Update how we animate in compose #7

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63 changes: 17 additions & 46 deletions app/src/main/java/com/codingwithmitch/mvvmrecipeapp/presentation/components/PulsingDemo.kt
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Original file line number Diff line number Diff line change
@@ -1,55 +1,53 @@
package com.codingwithmitch.mvvmrecipeapp.presentation.components

import androidx.compose.animation.core.*
import androidx.compose.animation.transition
import androidx.compose.foundation.Canvas
import androidx.compose.foundation.Image
import androidx.compose.foundation.layout.*
import androidx.compose.material.MaterialTheme
import androidx.compose.material.icons.Icons
import androidx.compose.material.icons.filled.Favorite
import androidx.compose.runtime.Composable
import androidx.compose.runtime.getValue
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.SolidColor
import androidx.compose.ui.unit.dp
import com.codingwithmitch.mvvmrecipeapp.presentation.components.PulseAnimationDefinitions.PulseState.FINAL
import com.codingwithmitch.mvvmrecipeapp.presentation.components.PulseAnimationDefinitions.PulseState.INITIAL
import com.codingwithmitch.mvvmrecipeapp.presentation.components.PulseAnimationDefinitions.pulseDefinition
import com.codingwithmitch.mvvmrecipeapp.presentation.components.PulseAnimationDefinitions.pulsePropKey


@Composable
fun PulsingDemo(){
fun PulsingDemo() {
val color = MaterialTheme.colors.primary

val pulseAnim = transition(
definition = pulseDefinition,
initState = INITIAL,
toState = FINAL
val infiniteTransition = rememberInfiniteTransition()
val pulseMagnitude by infiniteTransition.animateFloat(
initialValue = 40f,
targetValue = 50f,
animationSpec = infiniteRepeatable(
animation = tween(500, easing = FastOutSlowInEasing),
repeatMode = RepeatMode.Restart
)
)

val pulseMagnitude = pulseAnim[pulsePropKey]

Row(
modifier = Modifier
.fillMaxWidth()
.height(55.dp),
horizontalArrangement = Arrangement.Center
){
) {
Image(
modifier = Modifier
.align(Alignment.CenterVertically)
.height(pulseMagnitude.dp)
.width(pulseMagnitude.dp)
,
imageVector = Icons.Default.Favorite.copy(),
.width(pulseMagnitude.dp),
imageVector = Icons.Default.Favorite,
contentDescription = ""
)
}


Canvas(
modifier = Modifier.fillMaxWidth().height(55.dp),
modifier = Modifier
.fillMaxWidth()
.height(55.dp),
) {
drawCircle(
radius = pulseMagnitude,
Expand All @@ -59,33 +57,6 @@ fun PulsingDemo(){
}


object PulseAnimationDefinitions{

enum class PulseState{
INITIAL, FINAL
}

val pulsePropKey = FloatPropKey("pulseKey")

val pulseDefinition = transitionDefinition<PulseState> {
state(INITIAL) { this[pulsePropKey] = 40f }
state(FINAL) { this[pulsePropKey] = 50f }

transition(
INITIAL to FINAL,
) {
pulsePropKey using infiniteRepeatable(
animation = tween(
durationMillis = 500,
easing = FastOutSlowInEasing
),
repeatMode = RepeatMode.Restart
)
}
}
}





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