From 067870c679c07ca00e4227391a6596935e863fc7 Mon Sep 17 00:00:00 2001
From: Alex Vanyo <alex@livefront.com>
Date: Tue, 19 May 2020 14:48:55 -0500
Subject: [PATCH] Reproduce onTransitionCompleted bug

---
 ConstraintLayoutExamples/build.gradle         |  2 +-
 .../motionlayoutexample/DemoActivity.kt       | 33 ++++++++++++++++++-
 2 files changed, 33 insertions(+), 2 deletions(-)

diff --git a/ConstraintLayoutExamples/build.gradle b/ConstraintLayoutExamples/build.gradle
index 6b6ff83f..aa642f19 100644
--- a/ConstraintLayoutExamples/build.gradle
+++ b/ConstraintLayoutExamples/build.gradle
@@ -27,7 +27,7 @@ buildscript {
         targetSdkVersion = 28
 
         appCompatVersion = '1.1.0-alpha03'
-        constraintLayoutVersion = '2.0.0-beta3'
+        constraintLayoutVersion = '2.0.0-beta6'
         glideVersion = '4.8.0'
         kotlinVersion = '1.3.71'
         lifeCycleVersion = '2.0.0'
diff --git a/ConstraintLayoutExamples/motionlayout/src/main/java/com/google/androidstudio/motionlayoutexample/DemoActivity.kt b/ConstraintLayoutExamples/motionlayout/src/main/java/com/google/androidstudio/motionlayoutexample/DemoActivity.kt
index 862f6b73..75eb70f9 100644
--- a/ConstraintLayoutExamples/motionlayout/src/main/java/com/google/androidstudio/motionlayoutexample/DemoActivity.kt
+++ b/ConstraintLayoutExamples/motionlayout/src/main/java/com/google/androidstudio/motionlayoutexample/DemoActivity.kt
@@ -18,6 +18,7 @@ package com.google.androidstudio.motionlayoutexample
 
 import android.os.Build
 import android.os.Bundle
+import android.util.Log
 import android.view.View
 import android.widget.ImageView
 import androidx.annotation.RequiresApi
@@ -45,7 +46,37 @@ class DemoActivity : AppCompatActivity() {
         } else {
             MotionLayout.DEBUG_SHOW_NONE
         }
-        (container as? MotionLayout)?.setDebugMode(debugMode)
+        (container as? MotionLayout)?.apply {
+            setDebugMode(debugMode)
+            setTransitionListener(object : MotionLayout.TransitionListener {
+                override fun onTransitionTrigger(
+                    motionLayout: MotionLayout,
+                    triggerId: Int,
+                    positive: Boolean,
+                    progress: Float
+                ) = Unit
+
+                override fun onTransitionStarted(
+                    motionLayout: MotionLayout,
+                    startId: Int,
+                    endId: Int
+                ) = Unit
+
+                override fun onTransitionChange(
+                    motionLayout: MotionLayout,
+                    startId: Int,
+                    endId: Int,
+                    progress: Float
+                ) = Unit
+
+                override fun onTransitionCompleted(motionLayout: MotionLayout, currentId: Int) {
+                    Log.d(
+                        "DemoActivity",
+                        "$currentId: currentId is start: ${currentId == R.id.start}, currentId is end: ${currentId == R.id.end}"
+                    )
+                }
+            })
+        }
     }
 
     fun changeState(v: View?) {