clear cache button

mobile/lib/platform/remote_image_api.g.dart

@@ -98,4 +98,32 @@ class RemoteImageApi {
       return;
     }
   }
+
+  Future<int> clearCache() async {
+    final String pigeonVar_channelName =
+        'dev.flutter.pigeon.immich_mobile.RemoteImageApi.clearCache$pigeonVar_messageChannelSuffix';
+    final BasicMessageChannel<Object?> pigeonVar_channel = BasicMessageChannel<Object?>(
+      pigeonVar_channelName,
+      pigeonChannelCodec,
+      binaryMessenger: pigeonVar_binaryMessenger,
+    );
+    final Future<Object?> pigeonVar_sendFuture = pigeonVar_channel.send(null);
+    final List<Object?>? pigeonVar_replyList = await pigeonVar_sendFuture as List<Object?>?;
+    if (pigeonVar_replyList == null) {
+      throw _createConnectionError(pigeonVar_channelName);
+    } else if (pigeonVar_replyList.length > 1) {
+      throw PlatformException(
+        code: pigeonVar_replyList[0]! as String,
+        message: pigeonVar_replyList[1] as String?,
+        details: pigeonVar_replyList[2],
+      );
+    } else if (pigeonVar_replyList[0] == null) {
+      throw PlatformException(
+        code: 'null-error',
+        message: 'Host platform returned null value for non-null return value.',
+      );
+    } else {
+      return (pigeonVar_replyList[0] as int?)!;
+    }
+  }
 }

mobile/lib/utils/bytes_units.dart

@@ -19,7 +19,7 @@ String formatBytes(int bytes) {
 
 String formatHumanReadableBytes(int bytes, int decimals) {
   if (bytes <= 0) return "0 B";
-  const suffixes = ["B", "KB", "MB", "GB", "TB"];
+  const suffixes = ["B", "KiB", "MiB", "GiB", "TiB"];
   var i = (log(bytes) / log(1024)).floor();
   return '${(bytes / pow(1024, i)).toStringAsFixed(decimals)} ${suffixes[i]}';
 }

mobile/lib/widgets/settings/advanced_settings.dart

@@ -8,10 +8,12 @@ import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:immich_mobile/domain/services/log.service.dart';
 import 'package:immich_mobile/entities/store.entity.dart';
 import 'package:immich_mobile/extensions/build_context_extensions.dart';
+import 'package:immich_mobile/providers/infrastructure/platform.provider.dart';
 import 'package:immich_mobile/providers/infrastructure/readonly_mode.provider.dart';
 import 'package:immich_mobile/providers/user.provider.dart';
 import 'package:immich_mobile/repositories/local_files_manager.repository.dart';
 import 'package:immich_mobile/services/app_settings.service.dart';
+import 'package:immich_mobile/utils/bytes_units.dart';
 import 'package:immich_mobile/utils/hooks/app_settings_update_hook.dart';
 import 'package:immich_mobile/utils/http_ssl_options.dart';
 import 'package:immich_mobile/widgets/settings/beta_timeline_list_tile.dart';
@@ -153,6 +155,43 @@ class AdvancedSettings extends HookConsumerWidget {
             );
           },
         ),
+      ListTile(
+        title: Text("advanced_settings_clear_image_cache".tr(), style: const TextStyle(fontWeight: FontWeight.w500)),
+        leading: const Icon(Icons.playlist_remove_rounded),
+        onTap: () async {
+          final int clearedBytes;
+          try {
+            clearedBytes = await remoteImageApi.clearCache();
+          } catch (e) {
+            context.scaffoldMessenger.showSnackBar(
+              SnackBar(
+                duration: const Duration(seconds: 2),
+                content: Text(
+                  "advanced_settings_clear_image_cache_error".tr(),
+                  style: context.textTheme.bodyLarge?.copyWith(color: context.themeData.colorScheme.error),
+                ),
+              ),
+            );
+            return;
+          }
+
+          if (clearedBytes < 0) {
+            return;
+          }
+
+          // iOS always returns a small non-zero value
+          final clearedMB = clearedBytes < (256 * 1024) ? "0 MiB" : formatHumanReadableBytes(clearedBytes, 2);
+          context.scaffoldMessenger.showSnackBar(
+            SnackBar(
+              duration: const Duration(seconds: 2),
+              content: Text(
+                "advanced_settings_clear_image_cache_success".tr(namedArgs: {'size': clearedMB}),
+                style: context.textTheme.bodyLarge?.copyWith(color: context.primaryColor),
+              ),
+            ),
+          );
+        },
+      ),
     ];
 
     return SettingsSubPageScaffold(settings: advancedSettings);