diff --git a/ui/kotlinx-coroutines-android/animation-app/app/build.gradle b/ui/kotlinx-coroutines-android/animation-app/app/build.gradle
index b5919bea68..7fd9c8a98d 100644
--- a/ui/kotlinx-coroutines-android/animation-app/app/build.gradle
+++ b/ui/kotlinx-coroutines-android/animation-app/app/build.gradle
@@ -1,35 +1,33 @@
+/*
+ * Copyright 2016-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
+ */
+
 apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android-extensions'
 
 android {
-    compileSdkVersion 27
+    compileSdkVersion 29
     defaultConfig {
         applicationId "org.jetbrains.kotlinx.animation"
         minSdkVersion 14
-        targetSdkVersion 27
+        targetSdkVersion 29
         versionCode 1
         versionName "1.0"
-        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
-    }
-    buildTypes {
-        release {
-            minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
-        }
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
 }
 
 dependencies {
-    implementation 'com.android.support:appcompat-v7:27.1.1'
-    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
-    implementation 'com.android.support:design:27.1.1'
-    implementation 'android.arch.lifecycle:extensions:1.1.1'
+    implementation 'androidx.appcompat:appcompat:1.0.2'
+    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
+    implementation 'com.google.android.material:material:1.0.0'
+    implementation 'androidx.lifecycle:lifecycle-extensions:2.0.0'
 
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
     implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:$coroutines_version"
 
     testImplementation 'junit:junit:4.12'
-    androidTestImplementation 'com.android.support.test:runner:1.0.1'
-    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
+    androidTestImplementation 'androidx.test:runner:1.2.0'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
 }
diff --git a/ui/kotlinx-coroutines-android/animation-app/app/proguard-rules.pro b/ui/kotlinx-coroutines-android/animation-app/app/proguard-rules.pro
deleted file mode 100644
index aea920a68b..0000000000
--- a/ui/kotlinx-coroutines-android/animation-app/app/proguard-rules.pro
+++ /dev/null
@@ -1,8 +0,0 @@
--keepnames class kotlinx.coroutines.internal.MainDispatcherFactory {}
--keepnames class kotlinx.coroutines.CoroutineExceptionHandler {}
--keepnames class kotlinx.coroutines.android.AndroidExceptionPreHandler {}
--keepnames class kotlinx.coroutines.android.AndroidDispatcherFactory {}
-
--keepclassmembernames class kotlinx.** {
-    volatile <fields>;
-}
diff --git a/ui/kotlinx-coroutines-android/animation-app/app/src/main/java/org/jetbrains/kotlinx/animation/Animation.kt b/ui/kotlinx-coroutines-android/animation-app/app/src/main/java/org/jetbrains/kotlinx/animation/Animation.kt
index dd4aafb1c8..88e0baeeb3 100644
--- a/ui/kotlinx-coroutines-android/animation-app/app/src/main/java/org/jetbrains/kotlinx/animation/Animation.kt
+++ b/ui/kotlinx-coroutines-android/animation-app/app/src/main/java/org/jetbrains/kotlinx/animation/Animation.kt
@@ -1,9 +1,13 @@
+/*
+ * Copyright 2016-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
+ */
+
 package org.jetbrains.kotlinx.animation
 
-import android.arch.lifecycle.LifecycleOwner
-import android.arch.lifecycle.MutableLiveData
-import android.arch.lifecycle.Observer
-import android.arch.lifecycle.ViewModel
+import androidx.lifecycle.LifecycleOwner
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModel
 import android.content.Context
 import android.graphics.Canvas
 import android.graphics.Color
diff --git a/ui/kotlinx-coroutines-android/animation-app/app/src/main/java/org/jetbrains/kotlinx/animation/MainActivity.kt b/ui/kotlinx-coroutines-android/animation-app/app/src/main/java/org/jetbrains/kotlinx/animation/MainActivity.kt
index 87a857cc38..756db9bbe6 100644
--- a/ui/kotlinx-coroutines-android/animation-app/app/src/main/java/org/jetbrains/kotlinx/animation/MainActivity.kt
+++ b/ui/kotlinx-coroutines-android/animation-app/app/src/main/java/org/jetbrains/kotlinx/animation/MainActivity.kt
@@ -1,8 +1,12 @@
+/*
+ * Copyright 2016-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
+ */
+
 package org.jetbrains.kotlinx.animation
 
-import android.arch.lifecycle.ViewModelProviders
+import androidx.lifecycle.ViewModelProviders
 import android.os.Bundle
-import android.support.v7.app.AppCompatActivity
+import androidx.appcompat.app.AppCompatActivity
 import kotlinx.android.synthetic.main.activity_main.*
 import kotlinx.android.synthetic.main.content_main.*
 
diff --git a/ui/kotlinx-coroutines-android/animation-app/app/src/main/res/layout/activity_main.xml b/ui/kotlinx-coroutines-android/animation-app/app/src/main/res/layout/activity_main.xml
index cfc022f115..ad11f2aa61 100644
--- a/ui/kotlinx-coroutines-android/animation-app/app/src/main/res/layout/activity_main.xml
+++ b/ui/kotlinx-coroutines-android/animation-app/app/src/main/res/layout/activity_main.xml
@@ -1,28 +1,32 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<!--
+  ~ Copyright 2016-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
+  -->
+
+<androidx.coordinatorlayout.widget.CoordinatorLayout 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="match_parent"
     tools:context="org.jetbrains.kotlinx.animation.MainActivity">
 
-    <android.support.design.widget.AppBarLayout
+    <com.google.android.material.appbar.AppBarLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:theme="@style/AppTheme.AppBarOverlay">
 
-        <android.support.v7.widget.Toolbar
+        <androidx.appcompat.widget.Toolbar
             android:id="@+id/toolbar"
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
             android:background="?attr/colorPrimary"
             app:popupTheme="@style/AppTheme.PopupOverlay" />
 
-    </android.support.design.widget.AppBarLayout>
+    </com.google.android.material.appbar.AppBarLayout>
 
     <include layout="@layout/content_main" />
 
-    <android.support.design.widget.FloatingActionButton
+    <com.google.android.material.floatingactionbutton.FloatingActionButton
         android:id="@+id/addButton"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
@@ -31,7 +35,7 @@
         app:backgroundTint="@color/colorPrimary"
         app:srcCompat="@android:drawable/ic_input_add" />
 
-    <android.support.design.widget.FloatingActionButton
+    <com.google.android.material.floatingactionbutton.FloatingActionButton
         android:id="@+id/removeButton"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
@@ -40,4 +44,4 @@
         app:backgroundTint="@color/colorPrimary"
         app:srcCompat="@android:drawable/ic_delete" />
 
-</android.support.design.widget.CoordinatorLayout>
+</androidx.coordinatorlayout.widget.CoordinatorLayout>
diff --git a/ui/kotlinx-coroutines-android/animation-app/app/src/main/res/layout/content_main.xml b/ui/kotlinx-coroutines-android/animation-app/app/src/main/res/layout/content_main.xml
index 02058bdee7..30665fe9cf 100644
--- a/ui/kotlinx-coroutines-android/animation-app/app/src/main/res/layout/content_main.xml
+++ b/ui/kotlinx-coroutines-android/animation-app/app/src/main/res/layout/content_main.xml
@@ -1,5 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<!--
+  ~ Copyright 2016-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
+  -->
+
+<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"
@@ -17,4 +21,4 @@
         app:layout_constraintRight_toRightOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
 
-</android.support.constraint.ConstraintLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/ui/kotlinx-coroutines-android/animation-app/build.gradle b/ui/kotlinx-coroutines-android/animation-app/build.gradle
index f512a87311..d198b1ab77 100644
--- a/ui/kotlinx-coroutines-android/animation-app/build.gradle
+++ b/ui/kotlinx-coroutines-android/animation-app/build.gradle
@@ -1,3 +1,7 @@
+/*
+ * Copyright 2016-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
+ */
+
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
@@ -6,7 +10,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.4.1'
+        classpath 'com.android.tools.build:gradle:3.5.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
 
         // NOTE: Do not place your application dependencies here; they belong
diff --git a/ui/kotlinx-coroutines-android/animation-app/gradle.properties b/ui/kotlinx-coroutines-android/animation-app/gradle.properties
index 8e119d7159..19a14814c4 100644
--- a/ui/kotlinx-coroutines-android/animation-app/gradle.properties
+++ b/ui/kotlinx-coroutines-android/animation-app/gradle.properties
@@ -1,3 +1,7 @@
+#
+# Copyright 2016-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
+#
+
 # Project-wide Gradle settings.
 
 # IDE (e.g. Android Studio) users:
@@ -16,8 +20,9 @@ org.gradle.jvmargs=-Xmx1536m
 # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
 # org.gradle.parallel=true
 
-kotlin.coroutines=enable
-
 kotlin_version=1.3.50
 coroutines_version=1.3.1
 
+android.useAndroidX=true
+android.enableJetifier=true
+
diff --git a/ui/kotlinx-coroutines-android/animation-app/gradle/wrapper/gradle-wrapper.properties b/ui/kotlinx-coroutines-android/animation-app/gradle/wrapper/gradle-wrapper.properties
index caf54fa280..ab5d60b4d9 100644
--- a/ui/kotlinx-coroutines-android/animation-app/gradle/wrapper/gradle-wrapper.properties
+++ b/ui/kotlinx-coroutines-android/animation-app/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,9 @@
+#
+# Copyright 2016-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
+#
+
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.1.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip
diff --git a/ui/kotlinx-coroutines-android/example-app/app/build.gradle b/ui/kotlinx-coroutines-android/example-app/app/build.gradle
index 98257d37f9..f970baa6d6 100644
--- a/ui/kotlinx-coroutines-android/example-app/app/build.gradle
+++ b/ui/kotlinx-coroutines-android/example-app/app/build.gradle
@@ -1,34 +1,32 @@
+/*
+ * Copyright 2016-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
+ */
+
 apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android-extensions'
 
 android {
-    compileSdkVersion 27
+    compileSdkVersion 29
     defaultConfig {
         applicationId "com.example.app"
         minSdkVersion 14
-        targetSdkVersion 27
+        targetSdkVersion 29
         versionCode 1
         versionName "1.0"
-        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
-    }
-    buildTypes {
-        release {
-            minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
-        }
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
 }
 
 dependencies {
-    implementation 'com.android.support:appcompat-v7:27.1.1'
-    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
-    implementation 'com.android.support:design:27.1.1'
+    implementation 'androidx.appcompat:appcompat:1.0.2'
+    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
+    implementation 'com.google.android.material:material:1.0.0'
 
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
     implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:$coroutines_version"
 
     testImplementation 'junit:junit:4.12'
-    androidTestImplementation 'com.android.support.test:runner:1.0.1'
-    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
+    androidTestImplementation 'androidx.test:runner:1.2.0'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
 }
diff --git a/ui/kotlinx-coroutines-android/example-app/app/proguard-rules.pro b/ui/kotlinx-coroutines-android/example-app/app/proguard-rules.pro
deleted file mode 100644
index aea920a68b..0000000000
--- a/ui/kotlinx-coroutines-android/example-app/app/proguard-rules.pro
+++ /dev/null
@@ -1,8 +0,0 @@
--keepnames class kotlinx.coroutines.internal.MainDispatcherFactory {}
--keepnames class kotlinx.coroutines.CoroutineExceptionHandler {}
--keepnames class kotlinx.coroutines.android.AndroidExceptionPreHandler {}
--keepnames class kotlinx.coroutines.android.AndroidDispatcherFactory {}
-
--keepclassmembernames class kotlinx.** {
-    volatile <fields>;
-}
diff --git a/ui/kotlinx-coroutines-android/example-app/app/src/main/java/com/example/app/MainActivity.kt b/ui/kotlinx-coroutines-android/example-app/app/src/main/java/com/example/app/MainActivity.kt
index fc1cdbff41..47bd16cc51 100644
--- a/ui/kotlinx-coroutines-android/example-app/app/src/main/java/com/example/app/MainActivity.kt
+++ b/ui/kotlinx-coroutines-android/example-app/app/src/main/java/com/example/app/MainActivity.kt
@@ -1,8 +1,12 @@
+/*
+ * Copyright 2016-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
+ */
+
 package com.example.app
 
 import android.os.Bundle
-import android.support.design.widget.FloatingActionButton
-import android.support.v7.app.AppCompatActivity
+import com.google.android.material.floatingactionbutton.FloatingActionButton
+import androidx.appcompat.app.AppCompatActivity
 import android.view.Menu
 import android.view.MenuItem
 import android.widget.TextView
diff --git a/ui/kotlinx-coroutines-android/example-app/app/src/main/res/layout/activity_main.xml b/ui/kotlinx-coroutines-android/example-app/app/src/main/res/layout/activity_main.xml
index 13d32252c8..b98ce43711 100644
--- a/ui/kotlinx-coroutines-android/example-app/app/src/main/res/layout/activity_main.xml
+++ b/ui/kotlinx-coroutines-android/example-app/app/src/main/res/layout/activity_main.xml
@@ -1,28 +1,32 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<!--
+  ~ Copyright 2016-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
+  -->
+
+<androidx.coordinatorlayout.widget.CoordinatorLayout 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="match_parent"
     tools:context="com.example.app.MainActivity">
 
-    <android.support.design.widget.AppBarLayout
+    <com.google.android.material.appbar.AppBarLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:theme="@style/AppTheme.AppBarOverlay">
 
-        <android.support.v7.widget.Toolbar
+        <androidx.appcompat.widget.Toolbar
             android:id="@+id/toolbar"
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
             android:background="?attr/colorPrimary"
             app:popupTheme="@style/AppTheme.PopupOverlay" />
 
-    </android.support.design.widget.AppBarLayout>
+    </com.google.android.material.appbar.AppBarLayout>
 
     <include layout="@layout/content_main" />
 
-    <android.support.design.widget.FloatingActionButton
+    <com.google.android.material.floatingactionbutton.FloatingActionButton
         android:id="@+id/fab"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
@@ -30,4 +34,4 @@
         android:layout_margin="@dimen/fab_margin"
         app:srcCompat="@android:drawable/ic_dialog_email" />
 
-</android.support.design.widget.CoordinatorLayout>
+</androidx.coordinatorlayout.widget.CoordinatorLayout>
diff --git a/ui/kotlinx-coroutines-android/example-app/app/src/main/res/layout/content_main.xml b/ui/kotlinx-coroutines-android/example-app/app/src/main/res/layout/content_main.xml
index 110dc678ff..6eb08c050e 100644
--- a/ui/kotlinx-coroutines-android/example-app/app/src/main/res/layout/content_main.xml
+++ b/ui/kotlinx-coroutines-android/example-app/app/src/main/res/layout/content_main.xml
@@ -1,5 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<!--
+  ~ Copyright 2016-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
+  -->
+
+<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"
@@ -18,4 +22,4 @@
         app:layout_constraintRight_toRightOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
 
-</android.support.constraint.ConstraintLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/ui/kotlinx-coroutines-android/example-app/build.gradle b/ui/kotlinx-coroutines-android/example-app/build.gradle
index f512a87311..d198b1ab77 100644
--- a/ui/kotlinx-coroutines-android/example-app/build.gradle
+++ b/ui/kotlinx-coroutines-android/example-app/build.gradle
@@ -1,3 +1,7 @@
+/*
+ * Copyright 2016-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
+ */
+
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
@@ -6,7 +10,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.4.1'
+        classpath 'com.android.tools.build:gradle:3.5.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
 
         // NOTE: Do not place your application dependencies here; they belong
diff --git a/ui/kotlinx-coroutines-android/example-app/gradle.properties b/ui/kotlinx-coroutines-android/example-app/gradle.properties
index 8e119d7159..19a14814c4 100644
--- a/ui/kotlinx-coroutines-android/example-app/gradle.properties
+++ b/ui/kotlinx-coroutines-android/example-app/gradle.properties
@@ -1,3 +1,7 @@
+#
+# Copyright 2016-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
+#
+
 # Project-wide Gradle settings.
 
 # IDE (e.g. Android Studio) users:
@@ -16,8 +20,9 @@ org.gradle.jvmargs=-Xmx1536m
 # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
 # org.gradle.parallel=true
 
-kotlin.coroutines=enable
-
 kotlin_version=1.3.50
 coroutines_version=1.3.1
 
+android.useAndroidX=true
+android.enableJetifier=true
+
diff --git a/ui/kotlinx-coroutines-android/example-app/gradle/wrapper/gradle-wrapper.properties b/ui/kotlinx-coroutines-android/example-app/gradle/wrapper/gradle-wrapper.properties
index caf54fa280..ab5d60b4d9 100644
--- a/ui/kotlinx-coroutines-android/example-app/gradle/wrapper/gradle-wrapper.properties
+++ b/ui/kotlinx-coroutines-android/example-app/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,9 @@
+#
+# Copyright 2016-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
+#
+
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.1.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip