diff --git a/app/src/main/java/org/tasks/sync/AddAccountDialog.java b/app/src/main/java/org/tasks/sync/AddAccountDialog.java
deleted file mode 100644
index 5c8ac597c..000000000
--- a/app/src/main/java/org/tasks/sync/AddAccountDialog.java
+++ /dev/null
@@ -1,87 +0,0 @@
-package org.tasks.sync;
-
-import android.app.Activity;
-import android.content.Intent;
-import android.content.res.TypedArray;
-import android.net.Uri;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.ArrayAdapter;
-import android.widget.ImageView;
-import android.widget.TextView;
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-import com.todoroo.astrid.gtasks.auth.GtasksLoginActivity;
-import org.tasks.R;
-import org.tasks.caldav.CaldavAccountSettingsActivity;
-import org.tasks.dialogs.DialogBuilder;
-import org.tasks.etesync.EteSyncAccountSettingsActivity;
-import org.tasks.preferences.fragments.SynchronizationKt;
-import org.tasks.themes.DrawableUtil;
-
-public class AddAccountDialog {
-  public static void showAddAccountDialog(Activity activity, DialogBuilder dialogBuilder) {
-    String[] services = activity.getResources().getStringArray(R.array.synchronization_services);
-    String[] descriptions =
-        activity.getResources().getStringArray(R.array.synchronization_services_description);
-    TypedArray typedArray =
-        activity.getResources().obtainTypedArray(R.array.synchronization_services_icons);
-    int[] icons = new int[typedArray.length()];
-    for (int i = 0; i < icons.length; i++) {
-      icons[i] = typedArray.getResourceId(i, 0);
-    }
-    typedArray.recycle();
-    ArrayAdapter<String> adapter =
-        new ArrayAdapter<String>(
-            activity, R.layout.simple_list_item_2_themed, R.id.text1, services) {
-          @NonNull
-          @Override
-          public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {
-            View view = super.getView(position, convertView, parent);
-            view.<TextView>findViewById(R.id.text1).setText(services[position]);
-            view.<TextView>findViewById(R.id.text2).setText(descriptions[position]);
-            ImageView icon = view.findViewById(R.id.image_view);
-            icon.setImageDrawable(DrawableUtil.getWrapped(getContext(), icons[position]));
-            if (position == 1) {
-              icon.getDrawable().setTint(getContext().getColor(R.color.icon_tint));
-            }
-            return view;
-          }
-        };
-
-    dialogBuilder
-        .newDialog()
-        .setTitle(R.string.choose_synchronization_service)
-        .setSingleChoiceItems(
-            adapter,
-            -1,
-            (dialog, which) -> {
-              switch (which) {
-                case 0:
-                  activity.startActivityForResult(
-                      new Intent(activity, GtasksLoginActivity.class),
-                      SynchronizationKt.REQUEST_GOOGLE_TASKS);
-                  break;
-                case 1:
-                  activity.startActivityForResult(
-                      new Intent(activity, CaldavAccountSettingsActivity.class),
-                      SynchronizationKt.REQUEST_CALDAV_SETTINGS);
-                  break;
-                case 2:
-                  activity.startActivityForResult(
-                      new Intent(activity, EteSyncAccountSettingsActivity.class),
-                      SynchronizationKt.REQUEST_CALDAV_SETTINGS);
-                  break;
-              }
-              dialog.dismiss();
-            })
-        .setNeutralButton(
-            R.string.help,
-            (dialog, which) ->
-                activity.startActivity(
-                    new Intent(
-                        Intent.ACTION_VIEW, Uri.parse(activity.getString(R.string.help_url_sync)))))
-        .setNegativeButton(android.R.string.cancel, null)
-        .show();
-  }
-}
diff --git a/app/src/main/java/org/tasks/sync/AddAccountDialog.kt b/app/src/main/java/org/tasks/sync/AddAccountDialog.kt
new file mode 100644
index 000000000..f83066a49
--- /dev/null
+++ b/app/src/main/java/org/tasks/sync/AddAccountDialog.kt
@@ -0,0 +1,73 @@
+package org.tasks.sync
+
+import android.app.Activity
+import android.content.DialogInterface
+import android.content.Intent
+import android.net.Uri
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ArrayAdapter
+import android.widget.ImageView
+import android.widget.TextView
+import com.todoroo.astrid.gtasks.auth.GtasksLoginActivity
+import org.tasks.R
+import org.tasks.caldav.CaldavAccountSettingsActivity
+import org.tasks.dialogs.DialogBuilder
+import org.tasks.etesync.EteSyncAccountSettingsActivity
+import org.tasks.preferences.fragments.REQUEST_CALDAV_SETTINGS
+import org.tasks.preferences.fragments.REQUEST_GOOGLE_TASKS
+import org.tasks.themes.DrawableUtil
+
+object AddAccountDialog {
+    fun showAddAccountDialog(activity: Activity, dialogBuilder: DialogBuilder) {
+        val services = activity.resources.getStringArray(R.array.synchronization_services)
+        val descriptions = activity.resources.getStringArray(R.array.synchronization_services_description)
+        val typedArray = activity.resources.obtainTypedArray(R.array.synchronization_services_icons)
+        val icons = IntArray(typedArray.length())
+        for (i in icons.indices) {
+            icons[i] = typedArray.getResourceId(i, 0)
+        }
+        typedArray.recycle()
+        val adapter: ArrayAdapter<String> = object : ArrayAdapter<String>(
+                activity, R.layout.simple_list_item_2_themed, R.id.text1, services) {
+            override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
+                val view = super.getView(position, convertView, parent)
+                view.findViewById<TextView>(R.id.text1).text = services[position]
+                view.findViewById<TextView>(R.id.text2).text = descriptions[position]
+                val icon = view.findViewById<ImageView>(R.id.image_view)
+                icon.setImageDrawable(DrawableUtil.getWrapped(context, icons[position]))
+                if (position == 1) {
+                    icon.drawable.setTint(context.getColor(R.color.icon_tint))
+                }
+                return view
+            }
+        }
+        dialogBuilder
+                .newDialog()
+                .setTitle(R.string.choose_synchronization_service)
+                .setSingleChoiceItems(
+                        adapter,
+                        -1
+                ) { dialog: DialogInterface, which: Int ->
+                    when (which) {
+                        0 -> activity.startActivityForResult(
+                                Intent(activity, GtasksLoginActivity::class.java),
+                                REQUEST_GOOGLE_TASKS)
+                        1 -> activity.startActivityForResult(
+                                Intent(activity, CaldavAccountSettingsActivity::class.java),
+                                REQUEST_CALDAV_SETTINGS)
+                        2 -> activity.startActivityForResult(
+                                Intent(activity, EteSyncAccountSettingsActivity::class.java),
+                                REQUEST_CALDAV_SETTINGS)
+                    }
+                    dialog.dismiss()
+                }
+                .setNeutralButton(R.string.help) { _, _ ->
+                    activity.startActivity(
+                            Intent(
+                                    Intent.ACTION_VIEW, Uri.parse(activity.getString(R.string.help_url_sync))))
+                }
+                .setNegativeButton(android.R.string.cancel, null)
+                .show()
+    }
+}
\ No newline at end of file