diff --git a/PictureInPictureKotlin/app/src/main/java/com/example/android/pictureinpicture/MainActivity.kt b/PictureInPictureKotlin/app/src/main/java/com/example/android/pictureinpicture/MainActivity.kt
index 7950d46..9a1f7d7 100644
--- a/PictureInPictureKotlin/app/src/main/java/com/example/android/pictureinpicture/MainActivity.kt
+++ b/PictureInPictureKotlin/app/src/main/java/com/example/android/pictureinpicture/MainActivity.kt
@@ -16,9 +16,7 @@
 
 package com.example.android.pictureinpicture
 
-import android.app.PendingIntent
-import android.app.PictureInPictureParams
-import android.app.RemoteAction
+import android.app.*
 import android.content.BroadcastReceiver
 import android.content.Context
 import android.content.Intent
@@ -26,7 +24,9 @@ import android.content.IntentFilter
 import android.content.res.Configuration
 import android.graphics.drawable.Icon
 import android.net.Uri
+import android.os.Build
 import android.os.Bundle
+import android.util.Log
 import android.util.Rational
 import android.view.View
 import android.widget.Button
@@ -178,6 +178,7 @@ class MainActivity : AppCompatActivity() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
+        registerActivityLifecycleCallbacks()
         setContentView(R.layout.activity_main)
 
         // View references
@@ -268,6 +269,42 @@ class MainActivity : AppCompatActivity() {
         }
     }
 
+    private fun registerActivityLifecycleCallbacks() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
+            registerActivityLifecycleCallbacks(object : Application.ActivityLifecycleCallbacks {
+                private val TAG = MainActivity::class.java.simpleName
+
+                override fun onActivityCreated(activity: Activity, savedInstanceState: Bundle?) {
+                    Log.d(TAG, "onActivityCreated: [isInPictureInPictureMode=$isInPictureInPictureMode]")
+                }
+
+                override fun onActivityStarted(activity: Activity) {
+                    Log.d(TAG, "onActivityStarted: [isInPictureInPictureMode=$isInPictureInPictureMode]")
+                }
+
+                override fun onActivityResumed(activity: Activity) {
+                    Log.d(TAG, "onActivityResumed: [isInPictureInPictureMode=$isInPictureInPictureMode]")
+                }
+
+                override fun onActivityPaused(activity: Activity) {
+                    Log.d(TAG, "onActivityPaused: [isInPictureInPictureMode=$isInPictureInPictureMode] [isFinishing=$isFinishing]")
+                }
+
+                override fun onActivityStopped(activity: Activity) {
+                    Log.d(TAG, "onActivityStopped: [isInPictureInPictureMode=$isInPictureInPictureMode] [isFinishing=$isFinishing]")
+                }
+
+                override fun onActivitySaveInstanceState(activity: Activity, outState: Bundle) {
+                    Log.d(TAG, "onActivitySaveInstanceState: [isInPictureInPictureMode=$isInPictureInPictureMode]")
+                }
+
+                override fun onActivityDestroyed(activity: Activity) {
+                    Log.d(TAG, "onActivityDestroyed: [isInPictureInPictureMode=$isInPictureInPictureMode]")
+                }
+            })
+        }
+    }
+
     /**
      * Launches [MediaSessionPlaybackActivity] and closes this activity.
      */
diff --git a/documents/REPORT.MD b/documents/REPORT.MD
new file mode 100644
index 0000000..76e7618
--- /dev/null
+++ b/documents/REPORT.MD
@@ -0,0 +1,52 @@
+### Scenario: launch player, go to Pip, dismiss Pip (dragging to the bottom)
+
+##### Android 10
+```
+2021-04-07 14:22:35.434 18884-18884/com.example.android.pictureinpicture D/MainActivity: onActivityStarted: [isInPictureInPictureMode=false]
+2021-04-07 14:22:35.438 18884-18884/com.example.android.pictureinpicture D/MainActivity: onActivityResumed: [isInPictureInPictureMode=false]
+2021-04-07 14:22:59.436 18884-18884/com.example.android.pictureinpicture D/MainActivity: onActivityPaused: [isInPictureInPictureMode=true] [isFinishing=false]
+2021-04-07 14:23:04.868 18884-18884/com.example.android.pictureinpicture D/MainActivity: onActivityStopped: [isInPictureInPictureMode=false] [isFinishing=false]
+2021-04-07 14:23:04.898 18884-18884/com.example.android.pictureinpicture D/MainActivity: onActivitySaveInstanceState: [isInPictureInPictureMode=false]
+```
+
+##### Android 11
+
+```
+2021-04-07 14:24:22.956 10452-10452/com.example.android.pictureinpicture D/MainActivity: onActivityStarted: [isInPictureInPictureMode=false]
+2021-04-07 14:24:22.959 10452-10452/com.example.android.pictureinpicture D/MainActivity: onActivityResumed: [isInPictureInPictureMode=false]
+2021-04-07 14:24:34.530 10452-10452/com.example.android.pictureinpicture D/MainActivity: onActivityPaused: [isInPictureInPictureMode=true] [isFinishing=false]
+2021-04-07 14:24:38.336 10452-10452/com.example.android.pictureinpicture D/MainActivity: onActivityStopped: [isInPictureInPictureMode=true] [isFinishing=false]
+2021-04-07 14:24:38.337 10452-10452/com.example.android.pictureinpicture D/MainActivity: onActivitySaveInstanceState: [isInPictureInPictureMode=true]
+```
+
+##### Observations:
+- in onStop, Android10 reports isInPictureInPictureMode=false whereas Android 11 reports isInPictureInPictureMode=true
+
+
+### Scenario: launch player, go to Pip, close Pip (with the x button) 
+Same logs and results from previous scenario.
+
+### Scenario: launch player, go to Pip, lock the device
+
+##### Android 10
+```
+2021-04-07 14:54:48.415 23945-23945/com.example.android.pictureinpicture D/MainActivity: onActivityStarted: [isInPictureInPictureMode=false]
+2021-04-07 14:54:48.416 23945-23945/com.example.android.pictureinpicture D/MainActivity: onActivityResumed: [isInPictureInPictureMode=false]
+2021-04-07 14:54:50.705 23945-23945/com.example.android.pictureinpicture D/MainActivity: onActivityPaused: [isInPictureInPictureMode=true] [isFinishing=false]
+2021-04-07 14:54:55.116 23945-23945/com.example.android.pictureinpicture D/MainActivity: onActivityStopped: [isInPictureInPictureMode=true] [isFinishing=false]
+2021-04-07 14:54:55.117 23945-23945/com.example.android.pictureinpicture D/MainActivity: onActivitySaveInstanceState: [isInPictureInPictureMode=true]
+```
+
+#####  Android 11
+
+```
+2021-04-07 14:59:01.788 8046-8046/com.example.android.pictureinpicture D/MainActivity: onActivityStarted: [isInPictureInPictureMode=false]
+2021-04-07 14:59:01.790 8046-8046/com.example.android.pictureinpicture D/MainActivity: onActivityResumed: [isInPictureInPictureMode=false]
+2021-04-07 14:59:04.876 8046-8046/com.example.android.pictureinpicture D/MainActivity: onActivityPaused: [isInPictureInPictureMode=true] [isFinishing=false]
+2021-04-07 14:59:09.917 8046-8046/com.example.android.pictureinpicture D/MainActivity: onActivityStopped: [isInPictureInPictureMode=true] [isFinishing=false]
+2021-04-07 14:59:09.919 8046-8046/com.example.android.pictureinpicture D/MainActivity: onActivitySaveInstanceState: [isInPictureInPictureMode=true]
+```
+
+##### Observations:
+- no differences between Android 10 and Android 11
+- in onStop, Android 10 reports isInPictureInPictureMode=true, but in the scenario where the Pip is dismissed or closed, it returns isInPictureInPictureMode=false in onStop
\ No newline at end of file
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index 0000000..f7b89f2
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