diff --git a/Android.mk b/Android.mk
index 4a6a325..5834d36 100644
--- a/Android.mk
+++ b/Android.mk
@@ -14,14 +14,14 @@
 LOCAL_ASSET_DIR := $(addprefix $(LOCAL_PATH)/, $(asset_dirs))
 
 LOCAL_STATIC_ANDROID_LIBRARIES := \
-    $(ANDROID_SUPPORT_DESIGN_TARGETS) \
-    android-support-transition \
-    android-support-v13 \
-    android-support-v7-appcompat \
-    android-support-v7-cardview \
-    android-support-v7-recyclerview \
-    android-support-v7-palette \
-    android-support-v4
+    androidx.design_design \
+    androidx.transition_transition \
+    androidx.legacy_legacy-support-v13 \
+    androidx.appcompat_appcompat \
+    androidx.cardview_cardview \
+    androidx.recyclerview_recyclerview \
+    androidx.palette_palette \
+    androidx.legacy_legacy-support-v4
 
 LOCAL_STATIC_JAVA_LIBRARIES := \
     android-common \
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 1476e89..9570216 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -594,7 +594,7 @@
             android:permission="android.permission.BIND_JOB_SERVICE"/>
 
         <provider
-            android:name="android.support.v4.content.FileProvider"
+            android:name="androidx.core.content.FileProvider"
             android:authorities="@string/contacts_file_provider_authority"
             android:exported="false"
             android:grantUriPermissions="true">
diff --git a/res/layout-land/people_activity_toolbar.xml b/res/layout-land/people_activity_toolbar.xml
index 8fb0dc1..15f12f6 100644
--- a/res/layout-land/people_activity_toolbar.xml
+++ b/res/layout-land/people_activity_toolbar.xml
@@ -32,7 +32,7 @@
         android:background="?attr/colorPrimary">
 
         <!-- the attribute padding removes the gap between this Toolbar and its parent FrameLayout on tablet -->
-        <android.support.v7.widget.Toolbar
+        <androidx.appcompat.widget.Toolbar
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
             android:id="@+id/toolbar"
diff --git a/res/layout/contact_editor_activity.xml b/res/layout/contact_editor_activity.xml
index 36fc64a..1d726fa 100644
--- a/res/layout/contact_editor_activity.xml
+++ b/res/layout/contact_editor_activity.xml
@@ -22,7 +22,7 @@
     android:layout_height="match_parent"
     android:orientation="vertical">
 
-    <android.support.v7.widget.Toolbar
+    <androidx.appcompat.widget.Toolbar
         android:id="@+id/toolbar"
         style="@style/EditorActionBarStyle"
         android:layout_width="match_parent"
diff --git a/res/layout/contact_list_content.xml b/res/layout/contact_list_content.xml
index d9b113f..901e04c 100644
--- a/res/layout/contact_list_content.xml
+++ b/res/layout/contact_list_content.xml
@@ -71,7 +71,7 @@
 
         <include layout="@layout/contact_list_card"/>
 
-        <android.support.v4.widget.SwipeRefreshLayout
+        <androidx.swiperefreshlayout.widget.SwipeRefreshLayout
             android:id="@+id/swipe_refresh"
             android:layout_width="match_parent"
             android:layout_height="match_parent"
@@ -91,7 +91,7 @@
                 android:fastScrollEnabled="true"
 		android:visibility="gone"
                 android:fadingEdge="none" />
-        </android.support.v4.widget.SwipeRefreshLayout>
+        </androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
 
         <ProgressBar
             android:id="@+id/search_progress"
diff --git a/res/layout/contacts_drawer_activity.xml b/res/layout/contacts_drawer_activity.xml
index 84e536b..a59e1db 100644
--- a/res/layout/contacts_drawer_activity.xml
+++ b/res/layout/contacts_drawer_activity.xml
@@ -15,7 +15,7 @@
      limitations under the License.
 -->
 
-<android.support.v4.widget.DrawerLayout
+<androidx.drawerlayout.widget.DrawerLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/drawer_layout"
@@ -48,4 +48,4 @@
         android:layout_width="@dimen/drawer_width"
         android:layout_height="match_parent" />
 
-</android.support.v4.widget.DrawerLayout>
+</androidx.drawerlayout.widget.DrawerLayout>
diff --git a/res/layout/fragment_sim_import.xml b/res/layout/fragment_sim_import.xml
index 09e2c66..bea50d1 100644
--- a/res/layout/fragment_sim_import.xml
+++ b/res/layout/fragment_sim_import.xml
@@ -13,7 +13,7 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<android.support.design.widget.CoordinatorLayout
+<androidx.coordinatorlayout.widget.CoordinatorLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
@@ -24,7 +24,7 @@
         android:layout_height="match_parent"
         android:orientation="vertical">
 
-        <android.support.v7.widget.Toolbar
+        <androidx.appcompat.widget.Toolbar
             android:id="@+id/toolbar"
             style="@style/LightToolbarStyle"
             android:layout_width="match_parent"
@@ -43,7 +43,7 @@
                 android:layout_gravity="end|center_vertical"
                 android:text="@string/sim_import_button_text"
                 />
-        </android.support.v7.widget.Toolbar>
+        </androidx.appcompat.widget.Toolbar>
 
 
         <!-- This is managed by AccountHeaderPresenter so the IDs in this section must
@@ -110,7 +110,7 @@
                 android:clipToPadding="false"
                 android:paddingTop="8dp"/>
 
-            <android.support.v4.widget.ContentLoadingProgressBar
+            <androidx.core.widget.ContentLoadingProgressBar
                 android:id="@+id/loading_progress"
                 style="@style/Widget.AppCompat.ProgressBar"
                 android:layout_width="wrap_content"
@@ -130,4 +130,4 @@
         </FrameLayout>
 
     </LinearLayout>
-</android.support.design.widget.CoordinatorLayout>
+</androidx.coordinatorlayout.widget.CoordinatorLayout>
diff --git a/res/layout/people_activity.xml b/res/layout/people_activity.xml
index 978f47a..7570b97 100644
--- a/res/layout/people_activity.xml
+++ b/res/layout/people_activity.xml
@@ -14,7 +14,7 @@
      limitations under the License.
 -->
 
-<android.support.design.widget.CoordinatorLayout
+<androidx.coordinatorlayout.widget.CoordinatorLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:id="@+id/root"
     android:layout_width="match_parent"
@@ -34,4 +34,4 @@
         android:layout_width="match_parent" />
 
     <include layout="@layout/floating_action_button" />
-</android.support.design.widget.CoordinatorLayout>
+</androidx.coordinatorlayout.widget.CoordinatorLayout>
diff --git a/res/layout/people_activity_toolbar.xml b/res/layout/people_activity_toolbar.xml
index 3599f0c..4e8ea2f 100644
--- a/res/layout/people_activity_toolbar.xml
+++ b/res/layout/people_activity_toolbar.xml
@@ -28,7 +28,7 @@
         android:background="?attr/colorPrimary">
 
         <!-- the attribute padding removes the gap between this Toolbar and its parent FrameLayout on tablet -->
-        <android.support.v7.widget.Toolbar
+        <androidx.appcompat.widget.Toolbar
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
             android:id="@+id/toolbar"
diff --git a/res/layout/quickcontact_collapsed_suggestion_card.xml b/res/layout/quickcontact_collapsed_suggestion_card.xml
index 64bac99..ac2ec49 100644
--- a/res/layout/quickcontact_collapsed_suggestion_card.xml
+++ b/res/layout/quickcontact_collapsed_suggestion_card.xml
@@ -13,7 +13,7 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.cardview.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:card_view="http://schemas.android.com/apk/res-auto"
     style="@style/ExpandingEntryCardStyle"
     android:layout_height="@dimen/quickcontact_collapse_view_height"
@@ -61,4 +61,4 @@
                 android:paddingBottom="@dimen/editor_round_button_padding_bottom"/>
     </LinearLayout>>
 
-</android.support.v7.widget.CardView>
\ No newline at end of file
+</androidx.cardview.widget.CardView>
\ No newline at end of file
diff --git a/res/layout/quickcontact_expand_suggestion_card.xml b/res/layout/quickcontact_expand_suggestion_card.xml
index 1d91f87..1867c35 100644
--- a/res/layout/quickcontact_expand_suggestion_card.xml
+++ b/res/layout/quickcontact_expand_suggestion_card.xml
@@ -17,7 +17,7 @@
 <!--
   Layout for the expand suggestion card in QuickContact.
 -->
-<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.cardview.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:card_view="http://schemas.android.com/apk/res-auto"
     style="@style/ExpandingEntryCardStyle"
     android:layout_height="wrap_content"
@@ -160,4 +160,4 @@
                 android:text="@string/quickcontact_suggestion_link_button"/>
         </LinearLayout>
     </LinearLayout>
-</android.support.v7.widget.CardView>
\ No newline at end of file
+</androidx.cardview.widget.CardView>
\ No newline at end of file
diff --git a/src-bind/com/android/contactsbind/FeatureHighlightHelper.java b/src-bind/com/android/contactsbind/FeatureHighlightHelper.java
index be1833d..b5fabac 100644
--- a/src-bind/com/android/contactsbind/FeatureHighlightHelper.java
+++ b/src-bind/com/android/contactsbind/FeatureHighlightHelper.java
@@ -16,7 +16,7 @@
 
 package com.android.contactsbind;
 
-import android.support.v4.app.FragmentActivity;
+import androidx.fragment.app.FragmentActivity;
 
 public final class FeatureHighlightHelper {
 
diff --git a/src/com/android/contacts/ContactPhotoManager.java b/src/com/android/contacts/ContactPhotoManager.java
index fdcc9b3..e5f808d 100644
--- a/src/com/android/contacts/ContactPhotoManager.java
+++ b/src/com/android/contacts/ContactPhotoManager.java
@@ -46,8 +46,8 @@
 import android.provider.ContactsContract.Contacts.Photo;
 import android.provider.ContactsContract.Data;
 import android.provider.ContactsContract.Directory;
-import android.support.v4.graphics.drawable.RoundedBitmapDrawable;
-import android.support.v4.graphics.drawable.RoundedBitmapDrawableFactory;
+import androidx.core.graphics.drawable.RoundedBitmapDrawable;
+import androidx.core.graphics.drawable.RoundedBitmapDrawableFactory;
 import android.text.TextUtils;
 import android.util.Log;
 import android.util.LruCache;
diff --git a/src/com/android/contacts/ContactSaveService.java b/src/com/android/contacts/ContactSaveService.java
index 4e2d178..d0be7d8 100755
--- a/src/com/android/contacts/ContactSaveService.java
+++ b/src/com/android/contacts/ContactSaveService.java
@@ -47,7 +47,7 @@
 import android.provider.ContactsContract.Profile;
 import android.provider.ContactsContract.RawContacts;
 import android.provider.ContactsContract.RawContactsEntity;
-import android.support.v4.content.LocalBroadcastManager;
+import androidx.localbroadcastmanager.content.LocalBroadcastManager;
 import android.support.v4.os.ResultReceiver;
 import android.text.TextUtils;
 import android.util.Log;
diff --git a/src/com/android/contacts/ContactsUtils.java b/src/com/android/contacts/ContactsUtils.java
index 4fd9cc1..69a8243 100644
--- a/src/com/android/contacts/ContactsUtils.java
+++ b/src/com/android/contacts/ContactsUtils.java
@@ -23,7 +23,7 @@
 import android.os.Build;
 import android.provider.ContactsContract.CommonDataKinds.Im;
 import android.provider.ContactsContract.DisplayPhoto;
-import android.support.annotation.IntDef;
+import androidx.annotation.IntDef;
 import android.text.TextUtils;
 import android.util.Pair;
 
diff --git a/src/com/android/contacts/DynamicShortcuts.java b/src/com/android/contacts/DynamicShortcuts.java
index ac950d9..8130776 100644
--- a/src/com/android/contacts/DynamicShortcuts.java
+++ b/src/com/android/contacts/DynamicShortcuts.java
@@ -45,9 +45,9 @@
 import android.os.PersistableBundle;
 import android.provider.ContactsContract;
 import android.provider.ContactsContract.Contacts;
-import android.support.annotation.VisibleForTesting;
-import android.support.v4.content.LocalBroadcastManager;
-import android.support.v4.os.BuildCompat;
+import androidx.annotation.VisibleForTesting;
+import androidx.localbroadcastmanager.content.LocalBroadcastManager;
+import androidx.core.os.BuildCompat;
 import android.util.Log;
 
 import com.android.contacts.activities.RequestPermissionsActivity;
diff --git a/src/com/android/contacts/ShortcutIntentBuilder.java b/src/com/android/contacts/ShortcutIntentBuilder.java
index 5f480c6..5ea6b7e 100644
--- a/src/com/android/contacts/ShortcutIntentBuilder.java
+++ b/src/com/android/contacts/ShortcutIntentBuilder.java
@@ -40,10 +40,10 @@
 import android.provider.ContactsContract.CommonDataKinds.Photo;
 import android.provider.ContactsContract.Contacts;
 import android.provider.ContactsContract.Data;
-import android.support.v4.graphics.drawable.IconCompat;
-import android.support.v4.graphics.drawable.RoundedBitmapDrawable;
-import android.support.v4.graphics.drawable.RoundedBitmapDrawableFactory;
-import android.support.v4.os.BuildCompat;
+import androidx.core.graphics.drawable.IconCompat;
+import androidx.core.graphics.drawable.RoundedBitmapDrawable;
+import androidx.core.graphics.drawable.RoundedBitmapDrawableFactory;
+import androidx.core.os.BuildCompat;
 import android.telecom.PhoneAccount;
 import android.text.TextPaint;
 import android.text.TextUtils;
diff --git a/src/com/android/contacts/SimImportFragment.java b/src/com/android/contacts/SimImportFragment.java
index 9393e1a..0a3c7f9 100644
--- a/src/com/android/contacts/SimImportFragment.java
+++ b/src/com/android/contacts/SimImportFragment.java
@@ -23,14 +23,14 @@
 import android.content.IntentFilter;
 import android.content.Loader;
 import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import android.support.design.widget.Snackbar;
-import android.support.v4.content.LocalBroadcastManager;
-import android.support.v4.util.ArrayMap;
-import android.support.v4.view.ViewCompat;
-import android.support.v4.widget.ContentLoadingProgressBar;
-import android.support.v7.widget.Toolbar;
+import androidx.localbroadcastmanager.content.LocalBroadcastManager;
+import androidx.collection.ArrayMap;
+import androidx.core.view.ViewCompat;
+import androidx.core.widget.ContentLoadingProgressBar;
+import androidx.appcompat.widget.Toolbar;
 import android.util.SparseBooleanArray;
 import android.view.LayoutInflater;
 import android.view.View;
diff --git a/src/com/android/contacts/SimImportService.java b/src/com/android/contacts/SimImportService.java
index 1e41af0..4c74731 100644
--- a/src/com/android/contacts/SimImportService.java
+++ b/src/com/android/contacts/SimImportService.java
@@ -25,9 +25,9 @@
 import android.os.AsyncTask;
 import android.os.IBinder;
 import android.os.RemoteException;
-import android.support.annotation.Nullable;
-import android.support.v4.app.NotificationCompat;
-import android.support.v4.content.LocalBroadcastManager;
+import androidx.annotation.Nullable;
+import androidx.core.app.NotificationCompat;
+import androidx.localbroadcastmanager.content.LocalBroadcastManager;
 import android.util.TimingLogger;
 
 import com.android.contacts.activities.PeopleActivity;
diff --git a/src/com/android/contacts/activities/ActionBarAdapter.java b/src/com/android/contacts/activities/ActionBarAdapter.java
index 27bcc7a..e6f29a4 100644
--- a/src/com/android/contacts/activities/ActionBarAdapter.java
+++ b/src/com/android/contacts/activities/ActionBarAdapter.java
@@ -22,9 +22,9 @@
 import android.content.Context;
 import android.content.res.ColorStateList;
 import android.os.Bundle;
-import android.support.v4.content.ContextCompat;
-import android.support.v7.app.ActionBar;
-import android.support.v7.widget.Toolbar;
+import androidx.core.content.ContextCompat;
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.widget.Toolbar;
 import android.text.Editable;
 import android.text.TextUtils;
 import android.text.TextWatcher;
diff --git a/src/com/android/contacts/activities/AppCompatTransactionSafeActivity.java b/src/com/android/contacts/activities/AppCompatTransactionSafeActivity.java
index c638e26..f324193 100644
--- a/src/com/android/contacts/activities/AppCompatTransactionSafeActivity.java
+++ b/src/com/android/contacts/activities/AppCompatTransactionSafeActivity.java
@@ -17,7 +17,7 @@
 package com.android.contacts.activities;
 
 import android.os.Bundle;
-import android.support.v7.app.AppCompatActivity;
+import androidx.appcompat.app.AppCompatActivity;
 
 /**
  * A common superclass that keeps track of whether an {@link AppCompatActivity} has saved its state
diff --git a/src/com/android/contacts/activities/ContactEditorActivity.java b/src/com/android/contacts/activities/ContactEditorActivity.java
index ec49d48..2108ba9 100644
--- a/src/com/android/contacts/activities/ContactEditorActivity.java
+++ b/src/com/android/contacts/activities/ContactEditorActivity.java
@@ -24,7 +24,7 @@
 import android.net.Uri;
 import android.os.Bundle;
 import android.provider.ContactsContract.QuickContact;
-import android.support.v7.widget.Toolbar;
+import androidx.appcompat.widget.Toolbar;
 import android.util.Log;
 import android.view.View;
 import android.view.inputmethod.InputMethodManager;
diff --git a/src/com/android/contacts/activities/ContactSelectionActivity.java b/src/com/android/contacts/activities/ContactSelectionActivity.java
index eaa89a1..57669fa 100644
--- a/src/com/android/contacts/activities/ContactSelectionActivity.java
+++ b/src/com/android/contacts/activities/ContactSelectionActivity.java
@@ -24,8 +24,8 @@
 import android.net.Uri;
 import android.os.Bundle;
 import android.provider.ContactsContract.Contacts;
-import android.support.v4.content.ContextCompat;
-import android.support.v7.widget.Toolbar;
+import androidx.core.content.ContextCompat;
+import androidx.appcompat.widget.Toolbar;
 import android.text.TextUtils;
 import android.util.Log;
 import android.view.Menu;
diff --git a/src/com/android/contacts/activities/LicenseActivity.java b/src/com/android/contacts/activities/LicenseActivity.java
index 4ccaa93..e279a91 100644
--- a/src/com/android/contacts/activities/LicenseActivity.java
+++ b/src/com/android/contacts/activities/LicenseActivity.java
@@ -16,8 +16,8 @@
 package com.android.contacts.activities;
 
 import android.os.Bundle;
-import android.support.v7.app.ActionBar;
-import android.support.v7.app.AppCompatActivity;
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AppCompatActivity;
 import android.view.MenuItem;
 import android.webkit.WebView;
 
diff --git a/src/com/android/contacts/activities/PeopleActivity.java b/src/com/android/contacts/activities/PeopleActivity.java
index 5a38043..05df4cf 100644
--- a/src/com/android/contacts/activities/PeopleActivity.java
+++ b/src/com/android/contacts/activities/PeopleActivity.java
@@ -35,17 +35,17 @@
 import android.provider.ContactsContract;
 import android.provider.ContactsContract.Intents;
 import android.provider.ContactsContract.ProviderStatus;
-import android.support.annotation.LayoutRes;
-import android.support.design.widget.CoordinatorLayout;
+import androidx.annotation.LayoutRes;
+import androidx.coordinatorlayout.widget.CoordinatorLayout;
 import android.support.design.widget.Snackbar;
-import android.support.v4.content.ContextCompat;
-import android.support.v4.content.LocalBroadcastManager;
-import android.support.v4.view.GravityCompat;
-import android.support.v4.widget.DrawerLayout;
-import android.support.v4.widget.SwipeRefreshLayout;
-import android.support.v7.app.ActionBarDrawerToggle;
-import android.support.v7.app.AppCompatActivity;
-import android.support.v7.widget.Toolbar;
+import androidx.core.content.ContextCompat;
+import androidx.localbroadcastmanager.content.LocalBroadcastManager;
+import androidx.core.view.GravityCompat;
+import androidx.drawerlayout.widget.DrawerLayout;
+import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
+import androidx.appcompat.app.ActionBarDrawerToggle;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.widget.Toolbar;
 import android.util.Log;
 import android.view.KeyCharacterMap;
 import android.view.KeyEvent;
diff --git a/src/com/android/contacts/activities/RequestPermissionsActivity.java b/src/com/android/contacts/activities/RequestPermissionsActivity.java
index bcfa128..e086cea 100644
--- a/src/com/android/contacts/activities/RequestPermissionsActivity.java
+++ b/src/com/android/contacts/activities/RequestPermissionsActivity.java
@@ -21,7 +21,7 @@
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.PackageManager;
-import android.support.v4.content.LocalBroadcastManager;
+import androidx.localbroadcastmanager.content.LocalBroadcastManager;
 import android.widget.Toast;
 
 import com.android.contacts.R;
diff --git a/src/com/android/contacts/activities/RequestPermissionsActivityBase.java b/src/com/android/contacts/activities/RequestPermissionsActivityBase.java
index 1c11905..9c3d8e1 100644
--- a/src/com/android/contacts/activities/RequestPermissionsActivityBase.java
+++ b/src/com/android/contacts/activities/RequestPermissionsActivityBase.java
@@ -22,7 +22,7 @@
 import android.content.pm.PackageManager;
 import android.os.Bundle;
 import android.os.Trace;
-import android.support.v4.app.ActivityCompat;
+import androidx.core.app.ActivityCompat;
 
 import com.android.contacts.model.AccountTypeManager;
 import com.android.contacts.util.PermissionsUtil;
diff --git a/src/com/android/contacts/compat/CompatUtils.java b/src/com/android/contacts/compat/CompatUtils.java
index 10b627b..086a64a 100644
--- a/src/com/android/contacts/compat/CompatUtils.java
+++ b/src/com/android/contacts/compat/CompatUtils.java
@@ -17,7 +17,7 @@
 
 import android.os.Build;
 import android.os.Build.VERSION;
-import android.support.annotation.Nullable;
+import androidx.annotation.Nullable;
 import android.text.TextUtils;
 import android.util.Log;
 
diff --git a/src/com/android/contacts/compat/EdgeEffectCompat.java b/src/com/android/contacts/compat/EdgeEffectCompat.java
index b93ff90..84a5c26 100644
--- a/src/com/android/contacts/compat/EdgeEffectCompat.java
+++ b/src/com/android/contacts/compat/EdgeEffectCompat.java
@@ -20,7 +20,7 @@
 
 /**
  * Compatibility class for {@link android.widget.EdgeEffect}
- * The android.support.v4.widget.EdgeEffectCompat doesn't support customized color, so we write
+ * The androidx.core.widget.EdgeEffectCompat doesn't support customized color, so we write
  * our own and keep using EdgeEffect to customize color.
  */
 public class EdgeEffectCompat {
diff --git a/src/com/android/contacts/compat/PhoneAccountCompat.java b/src/com/android/contacts/compat/PhoneAccountCompat.java
index 5c396f5..2e2f8a9 100644
--- a/src/com/android/contacts/compat/PhoneAccountCompat.java
+++ b/src/com/android/contacts/compat/PhoneAccountCompat.java
@@ -18,7 +18,7 @@
 import android.content.Context;
 import android.graphics.drawable.Drawable;
 import android.graphics.drawable.Icon;
-import android.support.annotation.Nullable;
+import androidx.annotation.Nullable;
 import android.telecom.PhoneAccount;
 import android.util.Log;
 
diff --git a/src/com/android/contacts/compat/TelephonyManagerCompat.java b/src/com/android/contacts/compat/TelephonyManagerCompat.java
index 07523b1..a8b0226 100644
--- a/src/com/android/contacts/compat/TelephonyManagerCompat.java
+++ b/src/com/android/contacts/compat/TelephonyManagerCompat.java
@@ -17,7 +17,7 @@
 package com.android.contacts.compat;
 
 import android.net.Uri;
-import android.support.annotation.Nullable;
+import androidx.annotation.Nullable;
 import android.telecom.PhoneAccountHandle;
 import android.telephony.TelephonyManager;
 
diff --git a/src/com/android/contacts/compat/telecom/TelecomManagerCompat.java b/src/com/android/contacts/compat/telecom/TelecomManagerCompat.java
index 881c1a4..aa990ad 100644
--- a/src/com/android/contacts/compat/telecom/TelecomManagerCompat.java
+++ b/src/com/android/contacts/compat/telecom/TelecomManagerCompat.java
@@ -17,7 +17,7 @@
 
 import android.app.Activity;
 import android.content.Intent;
-import android.support.annotation.Nullable;
+import androidx.annotation.Nullable;
 import android.telecom.TelecomManager;
 
 import com.android.contacts.compat.CompatUtils;
diff --git a/src/com/android/contacts/database/SimContactDao.java b/src/com/android/contacts/database/SimContactDao.java
index d6ed88d..430f423 100644
--- a/src/com/android/contacts/database/SimContactDao.java
+++ b/src/com/android/contacts/database/SimContactDao.java
@@ -19,7 +19,7 @@
 import android.content.Context;
 import android.content.OperationApplicationException;
 import android.os.RemoteException;
-import android.support.annotation.VisibleForTesting;
+import androidx.annotation.VisibleForTesting;
 
 import com.android.contacts.model.SimCard;
 import com.android.contacts.model.SimContact;
diff --git a/src/com/android/contacts/database/SimContactDaoImpl.java b/src/com/android/contacts/database/SimContactDaoImpl.java
index be6b323..5ba6bd5 100644
--- a/src/com/android/contacts/database/SimContactDaoImpl.java
+++ b/src/com/android/contacts/database/SimContactDaoImpl.java
@@ -32,8 +32,8 @@
 import android.provider.ContactsContract.CommonDataKinds.StructuredName;
 import android.provider.ContactsContract.Data;
 import android.provider.ContactsContract.RawContacts;
-import android.support.annotation.VisibleForTesting;
-import android.support.v4.util.ArrayMap;
+import androidx.annotation.VisibleForTesting;
+import androidx.collection.ArrayMap;
 import android.telephony.SubscriptionInfo;
 import android.telephony.SubscriptionManager;
 import android.telephony.TelephonyManager;
diff --git a/src/com/android/contacts/drawer/DrawerAdapter.java b/src/com/android/contacts/drawer/DrawerAdapter.java
index 9ff2139..0c8423a 100644
--- a/src/com/android/contacts/drawer/DrawerAdapter.java
+++ b/src/com/android/contacts/drawer/DrawerAdapter.java
@@ -18,7 +18,7 @@
 
 import android.app.Activity;
 import android.graphics.PorterDuff;
-import android.support.annotation.LayoutRes;
+import androidx.annotation.LayoutRes;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
diff --git a/src/com/android/contacts/editor/AccountHeaderPresenter.java b/src/com/android/contacts/editor/AccountHeaderPresenter.java
index 4e4f35a..190d401 100644
--- a/src/com/android/contacts/editor/AccountHeaderPresenter.java
+++ b/src/com/android/contacts/editor/AccountHeaderPresenter.java
@@ -17,8 +17,8 @@
 
 import android.content.Context;
 import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.annotation.StringRes;
+import androidx.annotation.NonNull;
+import androidx.annotation.StringRes;
 import android.view.View;
 import android.widget.AdapterView;
 import android.widget.ImageView;
diff --git a/src/com/android/contacts/editor/CancelEditDialogFragment.java b/src/com/android/contacts/editor/CancelEditDialogFragment.java
index 48cedff..7f39857 100644
--- a/src/com/android/contacts/editor/CancelEditDialogFragment.java
+++ b/src/com/android/contacts/editor/CancelEditDialogFragment.java
@@ -20,7 +20,7 @@
 import android.app.DialogFragment;
 import android.content.DialogInterface;
 import android.os.Bundle;
-import android.support.v7.app.AlertDialog;
+import androidx.appcompat.app.AlertDialog;
 
 import com.android.contacts.R;
 
diff --git a/src/com/android/contacts/editor/ContactEditorFragment.java b/src/com/android/contacts/editor/ContactEditorFragment.java
index 2abd509..dfa0eeb 100755
--- a/src/com/android/contacts/editor/ContactEditorFragment.java
+++ b/src/com/android/contacts/editor/ContactEditorFragment.java
@@ -41,7 +41,7 @@
 import android.provider.ContactsContract.CommonDataKinds.StructuredPostal;
 import android.provider.ContactsContract.Intents;
 import android.provider.ContactsContract.RawContacts;
-import android.support.v7.widget.Toolbar;
+import androidx.appcompat.widget.Toolbar;
 import android.text.TextUtils;
 import android.util.Log;
 import android.view.LayoutInflater;
diff --git a/src/com/android/contacts/editor/EditorUiUtils.java b/src/com/android/contacts/editor/EditorUiUtils.java
index 9aa5c8e..35f107e 100644
--- a/src/com/android/contacts/editor/EditorUiUtils.java
+++ b/src/com/android/contacts/editor/EditorUiUtils.java
@@ -40,7 +40,7 @@
 import android.provider.ContactsContract.CommonDataKinds.SipAddress;
 import android.provider.ContactsContract.CommonDataKinds.StructuredPostal;
 import android.provider.ContactsContract.CommonDataKinds.Website;
-import android.support.v4.content.res.ResourcesCompat;
+import androidx.core.content.res.ResourcesCompat;
 import android.text.TextUtils;
 import android.widget.ImageView;
 
diff --git a/src/com/android/contacts/editor/PhotoSourceDialogFragment.java b/src/com/android/contacts/editor/PhotoSourceDialogFragment.java
index 31d41b1..4ca4d30 100644
--- a/src/com/android/contacts/editor/PhotoSourceDialogFragment.java
+++ b/src/com/android/contacts/editor/PhotoSourceDialogFragment.java
@@ -22,7 +22,7 @@
 import android.content.DialogInterface;
 import android.content.DialogInterface.OnClickListener;
 import android.os.Bundle;
-import android.support.v7.app.AlertDialog;
+import androidx.appcompat.app.AlertDialog;
 import android.view.View;
 import android.widget.TextView;
 
diff --git a/src/com/android/contacts/editor/SuggestionEditConfirmationDialogFragment.java b/src/com/android/contacts/editor/SuggestionEditConfirmationDialogFragment.java
index 487a5ee..df22773 100644
--- a/src/com/android/contacts/editor/SuggestionEditConfirmationDialogFragment.java
+++ b/src/com/android/contacts/editor/SuggestionEditConfirmationDialogFragment.java
@@ -21,7 +21,7 @@
 import android.content.DialogInterface;
 import android.net.Uri;
 import android.os.Bundle;
-import android.support.v7.app.AlertDialog;
+import androidx.appcompat.app.AlertDialog;
 
 import com.android.contacts.R;
 
diff --git a/src/com/android/contacts/group/GroupMembersFragment.java b/src/com/android/contacts/group/GroupMembersFragment.java
index 9ed69ff..733894d 100644
--- a/src/com/android/contacts/group/GroupMembersFragment.java
+++ b/src/com/android/contacts/group/GroupMembersFragment.java
@@ -32,7 +32,7 @@
 import android.os.Message;
 import android.provider.ContactsContract;
 import android.provider.ContactsContract.Contacts;
-import android.support.v4.content.ContextCompat;
+import androidx.core.content.ContextCompat;
 import android.text.TextUtils;
 import android.util.Log;
 import android.view.Gravity;
diff --git a/src/com/android/contacts/group/GroupNameEditDialogFragment.java b/src/com/android/contacts/group/GroupNameEditDialogFragment.java
index 853b8fc..0097142 100644
--- a/src/com/android/contacts/group/GroupNameEditDialogFragment.java
+++ b/src/com/android/contacts/group/GroupNameEditDialogFragment.java
@@ -28,7 +28,7 @@
 import android.os.Bundle;
 import android.provider.ContactsContract.Groups;
 import android.support.design.widget.TextInputLayout;
-import android.support.v7.app.AlertDialog;
+import androidx.appcompat.app.AlertDialog;
 import android.text.Editable;
 import android.text.TextUtils;
 import android.text.TextWatcher;
diff --git a/src/com/android/contacts/interactions/ImportDialogFragment.java b/src/com/android/contacts/interactions/ImportDialogFragment.java
index 5d27086..41b1c71 100644
--- a/src/com/android/contacts/interactions/ImportDialogFragment.java
+++ b/src/com/android/contacts/interactions/ImportDialogFragment.java
@@ -26,8 +26,8 @@
 import android.content.Intent;
 import android.content.res.Resources;
 import android.os.Bundle;
-import android.support.v4.text.BidiFormatter;
-import android.support.v4.text.TextDirectionHeuristicsCompat;
+import androidx.core.text.BidiFormatter;
+import androidx.core.text.TextDirectionHeuristicsCompat;
 import android.text.TextUtils;
 import android.util.Log;
 import android.view.LayoutInflater;
diff --git a/src/com/android/contacts/list/ContactListItemView.java b/src/com/android/contacts/list/ContactListItemView.java
index 385aa7c..135dbce 100644
--- a/src/com/android/contacts/list/ContactListItemView.java
+++ b/src/com/android/contacts/list/ContactListItemView.java
@@ -30,11 +30,11 @@
 import android.provider.ContactsContract;
 import android.provider.ContactsContract.Contacts;
 import android.provider.ContactsContract.SearchSnippets;
-import android.support.v4.content.ContextCompat;
-import android.support.v4.content.res.ResourcesCompat;
-import android.support.v4.graphics.drawable.DrawableCompat;
-import android.support.v7.widget.AppCompatCheckBox;
-import android.support.v7.widget.AppCompatImageButton;
+import androidx.core.content.ContextCompat;
+import androidx.core.content.res.ResourcesCompat;
+import androidx.core.graphics.drawable.DrawableCompat;
+import androidx.appcompat.widget.AppCompatCheckBox;
+import androidx.appcompat.widget.AppCompatImageButton;
 import android.text.Spannable;
 import android.text.SpannableString;
 import android.text.TextUtils;
diff --git a/src/com/android/contacts/list/ContactsUnavailableFragment.java b/src/com/android/contacts/list/ContactsUnavailableFragment.java
index c13e475..048ce62 100644
--- a/src/com/android/contacts/list/ContactsUnavailableFragment.java
+++ b/src/com/android/contacts/list/ContactsUnavailableFragment.java
@@ -21,7 +21,7 @@
 import android.content.res.Configuration;
 import android.graphics.PorterDuff;
 import android.os.Bundle;
-import android.support.v4.content.ContextCompat;
+import androidx.core.content.ContextCompat;
 import android.view.Gravity;
 import android.view.LayoutInflater;
 import android.view.View;
diff --git a/src/com/android/contacts/list/DefaultContactBrowseListFragment.java b/src/com/android/contacts/list/DefaultContactBrowseListFragment.java
index f07c4a5..9851d2b 100644
--- a/src/com/android/contacts/list/DefaultContactBrowseListFragment.java
+++ b/src/com/android/contacts/list/DefaultContactBrowseListFragment.java
@@ -36,8 +36,8 @@
 import android.os.Handler;
 import android.provider.ContactsContract;
 import android.provider.ContactsContract.Directory;
-import android.support.v4.content.ContextCompat;
-import android.support.v4.widget.SwipeRefreshLayout;
+import androidx.core.content.ContextCompat;
+import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
 import android.text.TextUtils;
 import android.util.Log;
 import android.view.Gravity;
diff --git a/src/com/android/contacts/list/MultiSelectContactsListFragment.java b/src/com/android/contacts/list/MultiSelectContactsListFragment.java
index 61e92b8..5e7f9e8 100644
--- a/src/com/android/contacts/list/MultiSelectContactsListFragment.java
+++ b/src/com/android/contacts/list/MultiSelectContactsListFragment.java
@@ -21,7 +21,7 @@
 import android.graphics.drawable.Drawable;
 import android.os.Bundle;
 import android.provider.ContactsContract;
-import android.support.v4.view.ViewCompat;
+import androidx.core.view.ViewCompat;
 import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
diff --git a/src/com/android/contacts/model/AccountTypeManager.java b/src/com/android/contacts/model/AccountTypeManager.java
index 9938695..f67f074 100644
--- a/src/com/android/contacts/model/AccountTypeManager.java
+++ b/src/com/android/contacts/model/AccountTypeManager.java
@@ -32,8 +32,8 @@
 import android.os.Handler;
 import android.os.Looper;
 import android.provider.ContactsContract;
-import android.support.v4.content.ContextCompat;
-import android.support.v4.content.LocalBroadcastManager;
+import androidx.core.content.ContextCompat;
+import androidx.localbroadcastmanager.content.LocalBroadcastManager;
 import android.text.TextUtils;
 import android.util.Log;
 
diff --git a/src/com/android/contacts/model/Cp2DeviceLocalAccountLocator.java b/src/com/android/contacts/model/Cp2DeviceLocalAccountLocator.java
index 307577d..32912dc 100644
--- a/src/com/android/contacts/model/Cp2DeviceLocalAccountLocator.java
+++ b/src/com/android/contacts/model/Cp2DeviceLocalAccountLocator.java
@@ -20,7 +20,7 @@
 import android.database.Cursor;
 import android.net.Uri;
 import android.provider.ContactsContract;
-import android.support.annotation.VisibleForTesting;
+import androidx.annotation.VisibleForTesting;
 
 import com.android.contacts.model.account.AccountWithDataSet;
 import com.android.contacts.util.DeviceLocalAccountTypeFactory;
diff --git a/src/com/android/contacts/model/SimCard.java b/src/com/android/contacts/model/SimCard.java
index 2105ac7..ea74379 100644
--- a/src/com/android/contacts/model/SimCard.java
+++ b/src/com/android/contacts/model/SimCard.java
@@ -16,7 +16,7 @@
 package com.android.contacts.model;
 
 import android.os.Build;
-import android.support.annotation.RequiresApi;
+import androidx.annotation.RequiresApi;
 import android.telephony.PhoneNumberUtils;
 import android.telephony.SubscriptionInfo;
 import android.telephony.TelephonyManager;
diff --git a/src/com/android/contacts/model/account/AccountDisplayInfo.java b/src/com/android/contacts/model/account/AccountDisplayInfo.java
index fe0c570..7d7393d 100644
--- a/src/com/android/contacts/model/account/AccountDisplayInfo.java
+++ b/src/com/android/contacts/model/account/AccountDisplayInfo.java
@@ -17,7 +17,7 @@
 
 import android.content.Context;
 import android.graphics.drawable.Drawable;
-import android.support.annotation.StringRes;
+import androidx.annotation.StringRes;
 import android.text.TextUtils;
 
 /**
diff --git a/src/com/android/contacts/model/account/FallbackAccountType.java b/src/com/android/contacts/model/account/FallbackAccountType.java
index 288a917..d7ea37a 100644
--- a/src/com/android/contacts/model/account/FallbackAccountType.java
+++ b/src/com/android/contacts/model/account/FallbackAccountType.java
@@ -20,8 +20,8 @@
 import android.content.Context;
 import android.graphics.PorterDuff;
 import android.graphics.drawable.Drawable;
-import android.support.v4.content.ContextCompat;
-import android.support.v4.content.res.ResourcesCompat;
+import androidx.core.content.ContextCompat;
+import androidx.core.content.res.ResourcesCompat;
 
 import com.android.contacts.R;
 import com.android.contacts.model.dataitem.DataKind;
diff --git a/src/com/android/contacts/preference/ContactsPreferenceActivity.java b/src/com/android/contacts/preference/ContactsPreferenceActivity.java
index 1c7469f..1658f3d 100644
--- a/src/com/android/contacts/preference/ContactsPreferenceActivity.java
+++ b/src/com/android/contacts/preference/ContactsPreferenceActivity.java
@@ -22,12 +22,12 @@
 import android.preference.PreferenceActivity;
 import android.provider.ContactsContract.DisplayNameSources;
 import android.provider.ContactsContract.ProviderStatus;
-import android.support.annotation.LayoutRes;
-import android.support.annotation.NonNull;
-import android.support.annotation.StringRes;
-import android.support.v7.app.ActionBar;
-import android.support.v7.app.AppCompatDelegate;
-import android.support.v7.widget.Toolbar;
+import androidx.annotation.LayoutRes;
+import androidx.annotation.NonNull;
+import androidx.annotation.StringRes;
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AppCompatDelegate;
+import androidx.appcompat.widget.Toolbar;
 import android.text.TextUtils;
 import android.view.MenuInflater;
 import android.view.MenuItem;
diff --git a/src/com/android/contacts/preference/ContactsPreferences.java b/src/com/android/contacts/preference/ContactsPreferences.java
index 87b13f7..85da891 100644
--- a/src/com/android/contacts/preference/ContactsPreferences.java
+++ b/src/com/android/contacts/preference/ContactsPreferences.java
@@ -27,8 +27,8 @@
 import android.preference.PreferenceManager;
 import android.provider.Settings;
 import android.provider.Settings.SettingNotFoundException;
-import android.support.annotation.NonNull;
-import android.support.annotation.VisibleForTesting;
+import androidx.annotation.NonNull;
+import androidx.annotation.VisibleForTesting;
 import android.text.TextUtils;
 
 import com.android.contacts.R;
diff --git a/src/com/android/contacts/preference/DisplayOptionsPreferenceFragment.java b/src/com/android/contacts/preference/DisplayOptionsPreferenceFragment.java
index 82e90b3..4a71585 100644
--- a/src/com/android/contacts/preference/DisplayOptionsPreferenceFragment.java
+++ b/src/com/android/contacts/preference/DisplayOptionsPreferenceFragment.java
@@ -36,7 +36,7 @@
 import android.provider.ContactsContract.DisplayNameSources;
 import android.provider.ContactsContract.Profile;
 import android.support.design.widget.Snackbar;
-import android.support.v4.content.LocalBroadcastManager;
+import androidx.localbroadcastmanager.content.LocalBroadcastManager;
 import android.telecom.TelecomManager;
 import android.telephony.TelephonyManager;
 import android.text.BidiFormatter;
diff --git a/src/com/android/contacts/quickcontact/ExpandingEntryCardView.java b/src/com/android/contacts/quickcontact/ExpandingEntryCardView.java
index b0f7800..d462a0e 100644
--- a/src/com/android/contacts/quickcontact/ExpandingEntryCardView.java
+++ b/src/com/android/contacts/quickcontact/ExpandingEntryCardView.java
@@ -27,7 +27,7 @@
 import android.graphics.Rect;
 import android.graphics.drawable.Drawable;
 import android.os.Bundle;
-import android.support.v7.widget.CardView;
+import androidx.cardview.widget.CardView;
 import android.text.Spannable;
 import android.text.TextUtils;
 import android.transition.ChangeBounds;
diff --git a/src/com/android/contacts/quickcontact/QuickContactActivity.java b/src/com/android/contacts/quickcontact/QuickContactActivity.java
index e985bbf..df08112 100644
--- a/src/com/android/contacts/quickcontact/QuickContactActivity.java
+++ b/src/com/android/contacts/quickcontact/QuickContactActivity.java
@@ -74,11 +74,11 @@
 import android.provider.ContactsContract.Intents;
 import android.provider.ContactsContract.QuickContact;
 import android.provider.ContactsContract.RawContacts;
-import android.support.v4.app.ActivityCompat;
-import android.support.v4.content.LocalBroadcastManager;
-import android.support.v4.content.res.ResourcesCompat;
-import android.support.v4.os.BuildCompat;
-import android.support.v7.graphics.Palette;
+import androidx.core.app.ActivityCompat;
+import androidx.localbroadcastmanager.content.LocalBroadcastManager;
+import androidx.core.content.res.ResourcesCompat;
+import androidx.core.os.BuildCompat;
+import androidx.palette.graphics.Palette;
 import android.telecom.PhoneAccount;
 import android.telecom.TelecomManager;
 import android.text.BidiFormatter;
diff --git a/src/com/android/contacts/util/AccountFilterUtil.java b/src/com/android/contacts/util/AccountFilterUtil.java
index 54c16e2..65ee69e 100644
--- a/src/com/android/contacts/util/AccountFilterUtil.java
+++ b/src/com/android/contacts/util/AccountFilterUtil.java
@@ -28,7 +28,7 @@
 import android.graphics.drawable.Drawable;
 import android.provider.ContactsContract.Contacts;
 import android.provider.ContactsContract.Intents;
-import android.support.v4.content.LocalBroadcastManager;
+import androidx.localbroadcastmanager.content.LocalBroadcastManager;
 import android.text.TextUtils;
 import android.util.Log;
 import android.widget.Toast;
diff --git a/src/com/android/contacts/util/ContactDisplayUtils.java b/src/com/android/contacts/util/ContactDisplayUtils.java
index 67b8e07..b69a088 100644
--- a/src/com/android/contacts/util/ContactDisplayUtils.java
+++ b/src/com/android/contacts/util/ContactDisplayUtils.java
@@ -20,7 +20,7 @@
 
 import android.content.Context;
 import android.content.res.Resources;
-import android.support.annotation.Nullable;
+import androidx.annotation.Nullable;
 import android.text.Spannable;
 import android.text.SpannableString;
 import android.text.TextUtils;
diff --git a/src/com/android/contacts/util/ContactPhotoUtils.java b/src/com/android/contacts/util/ContactPhotoUtils.java
index 943f5dd..76b7226 100644
--- a/src/com/android/contacts/util/ContactPhotoUtils.java
+++ b/src/com/android/contacts/util/ContactPhotoUtils.java
@@ -24,7 +24,7 @@
 import android.graphics.BitmapFactory;
 import android.net.Uri;
 import android.provider.MediaStore;
-import android.support.v4.content.FileProvider;
+import androidx.core.content.FileProvider;
 import android.util.Log;
 
 import com.android.contacts.R;
diff --git a/src/com/android/contacts/util/ContactsNotificationChannelsUtil.java b/src/com/android/contacts/util/ContactsNotificationChannelsUtil.java
index fec3bda..0d01156 100644
--- a/src/com/android/contacts/util/ContactsNotificationChannelsUtil.java
+++ b/src/com/android/contacts/util/ContactsNotificationChannelsUtil.java
@@ -21,7 +21,7 @@
 import android.app.NotificationManager;
 import android.content.Context;
 import android.os.Build;
-import android.support.v4.os.BuildCompat;
+import androidx.core.os.BuildCompat;
 
 import com.android.contacts.R;
 
diff --git a/src/com/android/contacts/util/DeviceLocalAccountTypeFactory.java b/src/com/android/contacts/util/DeviceLocalAccountTypeFactory.java
index 59ee7e5..d3a8c16 100644
--- a/src/com/android/contacts/util/DeviceLocalAccountTypeFactory.java
+++ b/src/com/android/contacts/util/DeviceLocalAccountTypeFactory.java
@@ -16,7 +16,7 @@
 package com.android.contacts.util;
 
 import android.content.Context;
-import android.support.annotation.IntDef;
+import androidx.annotation.IntDef;
 
 import com.android.contacts.model.account.AccountType;
 import com.android.contacts.model.account.DeviceLocalAccountType;
diff --git a/src/com/android/contacts/util/MaterialColorMapUtils.java b/src/com/android/contacts/util/MaterialColorMapUtils.java
index 39f69c2..c1616ce 100644
--- a/src/com/android/contacts/util/MaterialColorMapUtils.java
+++ b/src/com/android/contacts/util/MaterialColorMapUtils.java
@@ -22,7 +22,7 @@
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.os.Trace;
-import android.support.v4.content.ContextCompat;
+import androidx.core.content.ContextCompat;
 
 import com.android.contacts.R;
 import com.android.contacts.activities.PeopleActivity;
diff --git a/src/com/android/contacts/util/PermissionsUtil.java b/src/com/android/contacts/util/PermissionsUtil.java
index c56b13e..11f98d9 100644
--- a/src/com/android/contacts/util/PermissionsUtil.java
+++ b/src/com/android/contacts/util/PermissionsUtil.java
@@ -24,8 +24,8 @@
 import android.content.IntentFilter;
 import android.content.pm.PackageManager;
 import android.os.Process;
-import android.support.v4.content.ContextCompat;
-import android.support.v4.content.LocalBroadcastManager;
+import androidx.core.content.ContextCompat;
+import androidx.localbroadcastmanager.content.LocalBroadcastManager;
 
 /**
  * Utility class to help with runtime permissions.
diff --git a/src/com/android/contacts/util/concurrent/ContactsExecutors.java b/src/com/android/contacts/util/concurrent/ContactsExecutors.java
index 58a6c1f..3223384 100644
--- a/src/com/android/contacts/util/concurrent/ContactsExecutors.java
+++ b/src/com/android/contacts/util/concurrent/ContactsExecutors.java
@@ -4,7 +4,7 @@
 import android.os.AsyncTask;
 import android.os.Handler;
 import android.os.Looper;
-import android.support.annotation.NonNull;
+import androidx.annotation.NonNull;
 
 import com.google.common.util.concurrent.ForwardingFuture;
 import com.google.common.util.concurrent.Futures;
diff --git a/src/com/android/contacts/util/concurrent/ListenableFutureLoader.java b/src/com/android/contacts/util/concurrent/ListenableFutureLoader.java
index 67d5259..18280d6 100644
--- a/src/com/android/contacts/util/concurrent/ListenableFutureLoader.java
+++ b/src/com/android/contacts/util/concurrent/ListenableFutureLoader.java
@@ -20,7 +20,7 @@
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.Loader;
-import android.support.v4.content.LocalBroadcastManager;
+import androidx.localbroadcastmanager.content.LocalBroadcastManager;
 import android.util.Log;
 
 import com.google.common.util.concurrent.FutureCallback;
diff --git a/src/com/android/contacts/vcard/NotificationImportExportListener.java b/src/com/android/contacts/vcard/NotificationImportExportListener.java
index beabe26..f8f4320 100644
--- a/src/com/android/contacts/vcard/NotificationImportExportListener.java
+++ b/src/com/android/contacts/vcard/NotificationImportExportListener.java
@@ -28,7 +28,7 @@
 import android.os.Message;
 import android.provider.ContactsContract;
 import android.provider.ContactsContract.RawContacts;
-import android.support.v4.app.NotificationCompat;
+import androidx.core.app.NotificationCompat;
 import android.widget.Toast;
 
 import com.android.contacts.R;
diff --git a/src/com/android/contacts/vcard/ShareVCardActivity.java b/src/com/android/contacts/vcard/ShareVCardActivity.java
index 787ddc6..5873b7f 100644
--- a/src/com/android/contacts/vcard/ShareVCardActivity.java
+++ b/src/com/android/contacts/vcard/ShareVCardActivity.java
@@ -18,7 +18,7 @@
 import android.content.ComponentName;
 import android.net.Uri;
 import android.os.IBinder;
-import android.support.v4.content.FileProvider;
+import androidx.core.content.FileProvider;
 import android.util.Log;
 
 import com.android.contacts.R;
diff --git a/src/com/android/contacts/widget/MultiShrinkScroller.java b/src/com/android/contacts/widget/MultiShrinkScroller.java
index 263617b..3a9ba3f 100644
--- a/src/com/android/contacts/widget/MultiShrinkScroller.java
+++ b/src/com/android/contacts/widget/MultiShrinkScroller.java
@@ -15,8 +15,8 @@
 import android.graphics.drawable.GradientDrawable;
 import android.hardware.display.DisplayManager;
 import android.os.Trace;
-import android.support.v4.view.ViewCompat;
-import android.support.v4.view.animation.PathInterpolatorCompat;
+import androidx.core.view.ViewCompat;
+import androidx.core.view.animation.PathInterpolatorCompat;
 import android.util.AttributeSet;
 import android.util.TypedValue;
 import android.view.Display;
@@ -219,7 +219,7 @@
     };
 
     /**
-     * Interpolator from android.support.v4.view.ViewPager. Snappier and more elastic feeling
+     * Interpolator from androidx.viewpager.widget.ViewPager. Snappier and more elastic feeling
      * than the default interpolator.
      */
     private static final Interpolator sInterpolator = new Interpolator() {
diff --git a/tests/src/com/android/contacts/activities/SimImportActivityTest.java b/tests/src/com/android/contacts/activities/SimImportActivityTest.java
index ae8fb78..e738dd1 100644
--- a/tests/src/com/android/contacts/activities/SimImportActivityTest.java
+++ b/tests/src/com/android/contacts/activities/SimImportActivityTest.java
@@ -46,7 +46,7 @@
 import android.support.test.uiautomator.By;
 import android.support.test.uiautomator.UiDevice;
 import android.support.test.uiautomator.Until;
-import android.support.v4.content.LocalBroadcastManager;
+import androidx.localbroadcastmanager.content.LocalBroadcastManager;
 import android.telephony.TelephonyManager;
 import android.test.mock.MockContentResolver;
 
diff --git a/tests/src/com/android/contacts/database/SimContactDaoTests.java b/tests/src/com/android/contacts/database/SimContactDaoTests.java
index 18a3f09..e9e55d4 100644
--- a/tests/src/com/android/contacts/database/SimContactDaoTests.java
+++ b/tests/src/com/android/contacts/database/SimContactDaoTests.java
@@ -45,7 +45,7 @@
 import android.provider.ContactsContract.CommonDataKinds.Phone;
 import android.provider.ContactsContract.CommonDataKinds.StructuredName;
 import android.provider.ContactsContract.Data;
-import android.support.annotation.RequiresApi;
+import androidx.annotation.RequiresApi;
 import android.support.test.InstrumentationRegistry;
 import android.support.test.filters.LargeTest;
 import android.support.test.filters.SdkSuppress;
diff --git a/tests/src/com/android/contacts/model/Cp2DeviceLocalAccountLocatorTests.java b/tests/src/com/android/contacts/model/Cp2DeviceLocalAccountLocatorTests.java
index 12365a2..7dbf933 100644
--- a/tests/src/com/android/contacts/model/Cp2DeviceLocalAccountLocatorTests.java
+++ b/tests/src/com/android/contacts/model/Cp2DeviceLocalAccountLocatorTests.java
@@ -23,7 +23,7 @@
 import android.os.CancellationSignal;
 import android.provider.ContactsContract;
 import android.provider.ContactsContract.RawContacts;
-import android.support.annotation.Nullable;
+import androidx.annotation.Nullable;
 import android.test.AndroidTestCase;
 import android.test.mock.MockContentResolver;
 import android.test.suitebuilder.annotation.SmallTest;
diff --git a/tests/src/com/android/contacts/test/mocks/ForwardingContentProvider.java b/tests/src/com/android/contacts/test/mocks/ForwardingContentProvider.java
index b6ca983..993d0b7 100644
--- a/tests/src/com/android/contacts/test/mocks/ForwardingContentProvider.java
+++ b/tests/src/com/android/contacts/test/mocks/ForwardingContentProvider.java
@@ -27,7 +27,7 @@
 import android.os.CancellationSignal;
 import android.os.ParcelFileDescriptor;
 import android.os.RemoteException;
-import android.support.annotation.Nullable;
+import androidx.annotation.Nullable;
 
 import java.io.FileNotFoundException;
 import java.util.ArrayList;
diff --git a/tests/src/com/android/contacts/test/mocks/MockContentProvider.java b/tests/src/com/android/contacts/test/mocks/MockContentProvider.java
index 3b96e3a..1aeb839 100644
--- a/tests/src/com/android/contacts/test/mocks/MockContentProvider.java
+++ b/tests/src/com/android/contacts/test/mocks/MockContentProvider.java
@@ -21,7 +21,7 @@
 import android.database.Cursor;
 import android.database.MatrixCursor;
 import android.net.Uri;
-import android.support.annotation.Nullable;
+import androidx.annotation.Nullable;
 
 import com.google.common.base.Preconditions;
 import com.google.common.collect.Maps;
diff --git a/tests/src/com/android/contacts/tests/AccountsTestHelper.java b/tests/src/com/android/contacts/tests/AccountsTestHelper.java
index 2b2c16e..b65ba67 100644
--- a/tests/src/com/android/contacts/tests/AccountsTestHelper.java
+++ b/tests/src/com/android/contacts/tests/AccountsTestHelper.java
@@ -24,8 +24,8 @@
 import android.content.Context;
 import android.os.Build;
 import android.provider.ContactsContract.RawContacts;
-import android.support.annotation.NonNull;
-import android.support.annotation.RequiresApi;
+import androidx.annotation.NonNull;
+import androidx.annotation.RequiresApi;
 import android.support.test.InstrumentationRegistry;
 
 import com.android.contacts.model.account.AccountWithDataSet;
diff --git a/tests/src/com/android/contacts/tests/AdbHelpers.java b/tests/src/com/android/contacts/tests/AdbHelpers.java
index 59fc723..b981331 100644
--- a/tests/src/com/android/contacts/tests/AdbHelpers.java
+++ b/tests/src/com/android/contacts/tests/AdbHelpers.java
@@ -20,7 +20,7 @@
 import android.os.Build;
 import android.os.Bundle;
 import android.os.RemoteException;
-import android.support.annotation.RequiresApi;
+import androidx.annotation.RequiresApi;
 import android.support.test.InstrumentationRegistry;
 import android.util.Log;
 
diff --git a/tests/src/com/android/contacts/tests/SimContactsTestHelper.java b/tests/src/com/android/contacts/tests/SimContactsTestHelper.java
index ab10ed5..061e270 100644
--- a/tests/src/com/android/contacts/tests/SimContactsTestHelper.java
+++ b/tests/src/com/android/contacts/tests/SimContactsTestHelper.java
@@ -28,7 +28,7 @@
 import android.database.Cursor;
 import android.net.Uri;
 import android.os.RemoteException;
-import android.support.annotation.NonNull;
+import androidx.annotation.NonNull;
 import android.support.test.InstrumentationRegistry;
 import android.telephony.TelephonyManager;