AmaroNeto

package com.android.animationproject.view

import android.animation.AnimatorSet
import android.os.Bundle
import android.view.View
import android.view.ViewTreeObserver.OnGlobalLayoutListener
import androidx.appcompat.app.AppCompatActivity
import androidx.cardview.widget.CardView
import androidx.constraintlayout.widget.ConstraintLayout
import androidx.core.content.ContextCompat

AmaroNeto

private fun collapseAnimation() {
        val changeColor = AnimatorUtils.changeColor(
            cardBox::setCardBackgroundColor,
            ContextCompat.getColor(this, R.color.white),
            ContextCompat.getColor(this, R.color.red),
            500)

        val resize = AnimatorUtils.resize(cardBox, newHeight, oldHeight, 250)
        val fadeOut = AnimatorUtils.hideWithFadeOut(detail, 200)
        val fadeIn = AnimatorUtils.showWithFadeIn(intro, 300)

AmaroNeto

private fun expandAnimation() {
        val changeColor = AnimatorUtils.changeColor(
            cardBox::setCardBackgroundColor,
            ContextCompat.getColor(this, R.color.red),
            ContextCompat.getColor(this,R.color.white),
            500)

        val resize = AnimatorUtils.resize(cardBox, oldHeight, newHeight, 300)
        val fadeOut = AnimatorUtils.hideWithFadeOut(intro, 200)
        val fadeIn = AnimatorUtils.showWithFadeIn(detail, 300)

AmaroNeto

private fun setViewHeight() {
        intro.viewTreeObserver.addOnGlobalLayoutListener(
            object : OnGlobalLayoutListener {
                override fun onGlobalLayout() {
                    oldHeight = intro.getHeight()
                    intro.viewTreeObserver.removeOnGlobalLayoutListener(this)
                }
            })

        detail.viewTreeObserver.addOnGlobalLayoutListener(

AmaroNeto

package com.android.animationproject.utils

import android.animation.*
import android.view.View
import androidx.interpolator.view.animation.FastOutSlowInInterpolator

object AnimatorUtils {

    fun changeColor(
        backgroundColor: (Int) -> Unit,

AmaroNeto

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
    <androidx.constraintlayout.widget.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        tools:context=".view.ExpandViewActivity"

AmaroNeto

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:background="?attr/selectableItemBackground"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <ImageView

AmaroNeto

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="?attr/selectableItemBackground"
    tools:background="@color/red">

AmaroNeto

searchView.setOnQueryTextListener(object : SearchView.OnQueryTextListener {
    override fun onQueryTextSubmit(query: String): Boolean {
        adapter?.filter?.filter(query)
        return false
    }
    override fun onQueryTextChange(query: String): Boolean {
        adapter?.filter?.filter(query)
        return false
    }
})

AmaroNeto

adapter = GenericAdapter<Movie>(movies)
adapter?.listener = this
recyclerView.adapter = adapter