From b66d34199395f691c861ed280d0d31fefa7f5d78 Mon Sep 17 00:00:00 2001
From: skydoves <skydoves@naver.com>
Date: Sun, 16 Feb 2020 20:43:14 +0900
Subject: [PATCH] Implement circularUnRevealed animation when dismiss

---
 .../factory/ProfileBalloonFactory.kt          |  2 +-
 .../main/java/com/skydoves/balloon/Balloon.kt | 10 +++-
 .../com/skydoves/balloon/ViewExtension.kt     | 52 +++++++++++++++----
 3 files changed, 53 insertions(+), 11 deletions(-)

diff --git a/app/src/main/java/com/skydoves/balloondemo/factory/ProfileBalloonFactory.kt b/app/src/main/java/com/skydoves/balloondemo/factory/ProfileBalloonFactory.kt
index 8266c31d..45d53389 100644
--- a/app/src/main/java/com/skydoves/balloondemo/factory/ProfileBalloonFactory.kt
+++ b/app/src/main/java/com/skydoves/balloondemo/factory/ProfileBalloonFactory.kt
@@ -36,7 +36,7 @@ class ProfileBalloonFactory : Balloon.Factory() {
       setHeight(250)
       setCornerRadius(4f)
       setBackgroundColorResource(R.color.white)
-      setBalloonAnimation(BalloonAnimation.OVERSHOOT)
+      setBalloonAnimation(BalloonAnimation.CIRCULAR)
       setDismissWhenShowAgain(true)
       setLifecycleOwner(lifecycle)
     }
diff --git a/balloon/src/main/java/com/skydoves/balloon/Balloon.kt b/balloon/src/main/java/com/skydoves/balloon/Balloon.kt
index bb201869..9b04ff08 100644
--- a/balloon/src/main/java/com/skydoves/balloon/Balloon.kt
+++ b/balloon/src/main/java/com/skydoves/balloon/Balloon.kt
@@ -475,7 +475,15 @@ class Balloon(
   fun dismiss() {
     if (this.isShowing) {
       this.isShowing = false
-      this.bodyWindow.dismiss()
+
+      val dismissWindow: () -> Unit = { this.bodyWindow.dismiss() }
+      if (this.builder.balloonAnimation == BalloonAnimation.CIRCULAR) {
+        this.bodyWindow.contentView.circularUnRevealed() {
+          dismissWindow()
+        }
+      } else {
+        dismissWindow()
+      }
     }
   }
 
diff --git a/balloon/src/main/java/com/skydoves/balloon/ViewExtension.kt b/balloon/src/main/java/com/skydoves/balloon/ViewExtension.kt
index 5d613ce8..3930e443 100644
--- a/balloon/src/main/java/com/skydoves/balloon/ViewExtension.kt
+++ b/balloon/src/main/java/com/skydoves/balloon/ViewExtension.kt
@@ -16,12 +16,16 @@
 
 package com.skydoves.balloon
 
+import android.animation.Animator
+import android.animation.AnimatorListenerAdapter
 import android.os.Build
 import android.view.View
 import android.view.ViewAnimationUtils
+import androidx.annotation.MainThread
 import kotlin.math.max
 
 /** makes visible or invisible a View align the value parameter. */
+@MainThread
 internal fun View.visible(value: Boolean) {
   if (value) {
     this.visibility = View.VISIBLE
@@ -30,8 +34,46 @@ internal fun View.visible(value: Boolean) {
   }
 }
 
+@MainThread
 /** shows circular revealed animation to a view. */
 internal fun View.circularRevealed() {
+  doOnLayoutChanged {
+    val view = this
+    ViewAnimationUtils.createCircularReveal(
+      view,
+      (view.left + view.right) / 2,
+      (view.top + view.bottom) / 2,
+      0f,
+      max(view.width, view.height).toFloat()).apply {
+      duration = 500
+      start()
+    }
+  }
+}
+
+@MainThread
+internal fun View.circularUnRevealed(doAfterFinish: () -> Unit) {
+  if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+    val view = this
+    ViewAnimationUtils.createCircularReveal(
+      view,
+      (view.left + view.right) / 2,
+      (view.top + view.bottom) / 2,
+      max(view.width, view.height).toFloat(),
+      0f).apply {
+      duration = 500
+      start()
+    }.addListener(object : AnimatorListenerAdapter() {
+      override fun onAnimationEnd(animation: Animator?) {
+        super.onAnimationEnd(animation)
+        doAfterFinish()
+      }
+    })
+  }
+}
+
+@MainThread
+internal fun View.doOnLayoutChanged(block: () -> Unit) {
   this.addOnLayoutChangeListener(
     object : View.OnLayoutChangeListener {
       override fun onLayoutChange(
@@ -47,15 +89,7 @@ internal fun View.circularRevealed() {
       ) {
         view.removeOnLayoutChangeListener(this)
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
-          ViewAnimationUtils.createCircularReveal(
-            view,
-            (view.left + view.right) / 2,
-            (view.top + view.bottom) / 2,
-            0f,
-            max(view.width, view.height).toFloat()).run {
-            duration = 500
-            start()
-          }
+          block()
         }
       }
     })