diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/sysupdate/ui/SystemUpdateResultFragment.java b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/sysupdate/ui/SystemUpdateResultFragment.java
deleted file mode 100644
index a8e638ad90..0000000000
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/sysupdate/ui/SystemUpdateResultFragment.java
+++ /dev/null
@@ -1,105 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-package org.dolphinemu.dolphinemu.features.sysupdate.ui;
-
-import android.app.Dialog;
-import android.os.Bundle;
-
-import androidx.annotation.NonNull;
-import androidx.fragment.app.DialogFragment;
-import androidx.lifecycle.ViewModelProvider;
-
-import com.google.android.material.dialog.MaterialAlertDialogBuilder;
-
-import org.dolphinemu.dolphinemu.R;
-import org.dolphinemu.dolphinemu.utils.WiiUtils;
-
-public class SystemUpdateResultFragment extends DialogFragment
-{
-  private int mResult;
-
-  @Override
-  public Dialog onCreateDialog(Bundle savedInstanceState)
-  {
-    SystemUpdateViewModel viewModel =
-            new ViewModelProvider(requireActivity()).get(SystemUpdateViewModel.class);
-    if (savedInstanceState == null)
-    {
-      mResult = viewModel.getResultData().getValue().intValue();
-      viewModel.clear();
-    }
-    else
-    {
-      mResult = savedInstanceState.getInt("result");
-    }
-
-    String message;
-    switch (mResult)
-    {
-      case WiiUtils.UPDATE_RESULT_SUCCESS:
-        message = getString(R.string.update_success);
-        break;
-      case WiiUtils.UPDATE_RESULT_ALREADY_UP_TO_DATE:
-        message = getString(R.string.already_up_to_date);
-        break;
-      case WiiUtils.UPDATE_RESULT_REGION_MISMATCH:
-        message = getString(R.string.region_mismatch);
-        break;
-      case WiiUtils.UPDATE_RESULT_MISSING_UPDATE_PARTITION:
-        message = getString(R.string.missing_update_partition);
-        break;
-      case WiiUtils.UPDATE_RESULT_DISC_READ_FAILED:
-        message = getString(R.string.disc_read_failed);
-        break;
-      case WiiUtils.UPDATE_RESULT_SERVER_FAILED:
-        message = getString(R.string.server_failed);
-        break;
-      case WiiUtils.UPDATE_RESULT_DOWNLOAD_FAILED:
-        message = getString(R.string.download_failed);
-        break;
-      case WiiUtils.UPDATE_RESULT_IMPORT_FAILED:
-        message = getString(R.string.import_failed);
-        break;
-      case WiiUtils.UPDATE_RESULT_CANCELLED:
-        message = getString(R.string.update_cancelled);
-        break;
-      default:
-        throw new IllegalStateException("Unexpected value: " + mResult);
-    }
-
-    String title;
-    switch (mResult)
-    {
-      case WiiUtils.UPDATE_RESULT_SUCCESS:
-      case WiiUtils.UPDATE_RESULT_ALREADY_UP_TO_DATE:
-        title = getString(R.string.update_success_title);
-        break;
-      case WiiUtils.UPDATE_RESULT_REGION_MISMATCH:
-      case WiiUtils.UPDATE_RESULT_MISSING_UPDATE_PARTITION:
-      case WiiUtils.UPDATE_RESULT_DISC_READ_FAILED:
-      case WiiUtils.UPDATE_RESULT_SERVER_FAILED:
-      case WiiUtils.UPDATE_RESULT_DOWNLOAD_FAILED:
-      case WiiUtils.UPDATE_RESULT_IMPORT_FAILED:
-        title = getString(R.string.update_failed_title);
-        break;
-      case WiiUtils.UPDATE_RESULT_CANCELLED:
-        title = getString(R.string.update_cancelled_title);
-        break;
-      default:
-        throw new IllegalStateException("Unexpected value: " + mResult);
-    }
-
-    return new MaterialAlertDialogBuilder(requireContext())
-            .setTitle(title)
-            .setMessage(message)
-            .setPositiveButton(R.string.ok, (dialog, which) -> dismiss())
-            .create();
-  }
-
-  @Override
-  public void onSaveInstanceState(@NonNull Bundle outState)
-  {
-    super.onSaveInstanceState(outState);
-    outState.putInt("result", mResult);
-  }
-}
diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/sysupdate/ui/SystemUpdateResultFragment.kt b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/sysupdate/ui/SystemUpdateResultFragment.kt
new file mode 100644
index 0000000000..352e6cd47a
--- /dev/null
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/sysupdate/ui/SystemUpdateResultFragment.kt
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+package org.dolphinemu.dolphinemu.features.sysupdate.ui
+
+import android.app.Dialog
+import android.content.DialogInterface
+import android.os.Bundle
+import androidx.fragment.app.DialogFragment
+import androidx.lifecycle.ViewModelProvider
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
+import org.dolphinemu.dolphinemu.R
+import org.dolphinemu.dolphinemu.utils.WiiUtils
+
+class SystemUpdateResultFragment : DialogFragment() {
+    private var mResult = 0
+
+    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
+        val viewModel = ViewModelProvider(requireActivity())[SystemUpdateViewModel::class.java]
+        if (savedInstanceState == null) {
+            mResult = viewModel.resultData.value!!.toInt()
+            viewModel.clear()
+        } else {
+            mResult = savedInstanceState.getInt("result")
+        }
+        val message: String = when (mResult) {
+            WiiUtils.UPDATE_RESULT_SUCCESS -> getString(R.string.update_success)
+            WiiUtils.UPDATE_RESULT_ALREADY_UP_TO_DATE -> getString(R.string.already_up_to_date)
+            WiiUtils.UPDATE_RESULT_REGION_MISMATCH -> getString(R.string.region_mismatch)
+            WiiUtils.UPDATE_RESULT_MISSING_UPDATE_PARTITION -> getString(R.string.missing_update_partition)
+            WiiUtils.UPDATE_RESULT_DISC_READ_FAILED -> getString(R.string.disc_read_failed)
+            WiiUtils.UPDATE_RESULT_SERVER_FAILED -> getString(R.string.server_failed)
+            WiiUtils.UPDATE_RESULT_DOWNLOAD_FAILED -> getString(R.string.download_failed)
+            WiiUtils.UPDATE_RESULT_IMPORT_FAILED -> getString(R.string.import_failed)
+            WiiUtils.UPDATE_RESULT_CANCELLED -> getString(R.string.update_cancelled)
+            else -> throw IllegalStateException("Unexpected value: $mResult")
+        }
+        val title: String = when (mResult) {
+            WiiUtils.UPDATE_RESULT_SUCCESS,
+            WiiUtils.UPDATE_RESULT_ALREADY_UP_TO_DATE -> getString(R.string.update_success_title)
+            WiiUtils.UPDATE_RESULT_REGION_MISMATCH,
+            WiiUtils.UPDATE_RESULT_MISSING_UPDATE_PARTITION,
+            WiiUtils.UPDATE_RESULT_DISC_READ_FAILED,
+            WiiUtils.UPDATE_RESULT_SERVER_FAILED,
+            WiiUtils.UPDATE_RESULT_DOWNLOAD_FAILED,
+            WiiUtils.UPDATE_RESULT_IMPORT_FAILED -> getString(R.string.update_failed_title)
+            WiiUtils.UPDATE_RESULT_CANCELLED -> getString(R.string.update_cancelled_title)
+            else -> throw IllegalStateException("Unexpected value: $mResult")
+        }
+
+        return MaterialAlertDialogBuilder(requireContext())
+            .setTitle(title)
+            .setMessage(message)
+            .setPositiveButton(R.string.ok) { _: DialogInterface?, _: Int -> dismiss() }
+            .create()
+    }
+
+    override fun onSaveInstanceState(outState: Bundle) {
+        super.onSaveInstanceState(outState)
+        outState.putInt("result", mResult)
+    }
+}