opt.

lib/view/page/editor.dart

@@ -1,5 +1,7 @@
+import 'dart:async';
 import 'dart:io';
 
+import 'package:after_layout/after_layout.dart';
 import 'package:code_text_field/code_text_field.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
@@ -15,14 +17,13 @@ import '../widget/two_line_text.dart';
 
 class EditorPage extends StatefulWidget {
   final String? path;
-  final String? initCode;
-  const EditorPage({Key? key, this.path, this.initCode}) : super(key: key);
+  const EditorPage({Key? key, this.path}) : super(key: key);
 
   @override
   _EditorPageState createState() => _EditorPageState();
 }
 
-class _EditorPageState extends State<EditorPage> {
+class _EditorPageState extends State<EditorPage> with AfterLayoutMixin {
   late CodeController _controller;
   late final _focusNode = FocusNode();
   final _setting = locator<SettingStore>();
@@ -35,15 +36,9 @@ class _EditorPageState extends State<EditorPage> {
     super.initState();
     _langCode = widget.path.highlightCode;
     _controller = CodeController(
-      text: widget.initCode,
-      language: suffix2HighlightMap[_langCode ?? 'plaintext'],
+      language: suffix2HighlightMap[_langCode],
     );
     _codeTheme = themeMap[_setting.editorTheme.fetch()] ?? monokaiTheme;
-    if (widget.initCode == null && widget.path != null) {
-      File(widget.path!)
-          .readAsString()
-          .then((value) => _controller.text = value);
-    }
     _focusNode.requestFocus();
   }
 
@@ -92,7 +87,6 @@ class _EditorPageState extends State<EditorPage> {
           child: CodeField(
             focusNode: _focusNode,
             controller: _controller,
-            textStyle: const TextStyle(fontFamily: 'SourceCode'),
           ),
         ),
       ),
@@ -104,4 +98,15 @@ class _EditorPageState extends State<EditorPage> {
       ),
     );
   }
+
+  @override
+  FutureOr<void> afterFirstLayout(BuildContext context) async {
+    if (widget.path != null) {
+      await Future.delayed(const Duration(milliseconds: 233));
+      final code = await File(widget.path!).readAsString();
+      setState(() {
+        _controller.text = code;
+      });
+    }
+  }
 }

lib/view/page/home.dart

@@ -3,6 +3,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
 import 'package:get_it/get_it.dart';
 import 'package:toolbox/core/extension/navigator.dart';
+import 'package:toolbox/data/model/app/tab.dart';
 import 'package:toolbox/data/provider/app.dart';
 import 'package:toolbox/data/res/misc.dart';
 import 'package:toolbox/view/widget/round_rect_card.dart';
@@ -54,6 +55,10 @@ class _HomePageState extends State<HomePage>
     super.initState();
     WidgetsBinding.instance.addObserver(this);
     _selectIndex = _setting.launchPage.fetch()!;
+    // avoid index out of range
+    if (_selectIndex >= AppTab.values.length || _selectIndex < 0) {
+      _selectIndex = 0;
+    }
     _pageController = PageController(initialPage: _selectIndex);
   }
 
@@ -108,8 +113,10 @@ class _HomePageState extends State<HomePage>
           IconButton(
             icon: const Icon(Icons.developer_mode, size: 23),
             tooltip: _s.debug,
-            onPressed: () =>
-                AppRoute(const DebugPage(), 'Debug Page').go(context),
+            onPressed: () => AppRoute(
+              const DebugPage(),
+              'Debug Page',
+            ).go(context),
           ),
         ],
       ),
@@ -210,7 +217,7 @@ class _HomePageState extends State<HomePage>
                   title: Text(_s.download),
                   onTap: () => AppRoute(
                     const SFTPDownloadedPage(),
-                    'snippet list',
+                    'sftp local page',
                   ).go(context),
                 ),
                 ListTile(

lib/view/page/sftp/local.dart

@@ -180,11 +180,9 @@ class _SFTPDownloadedPageState extends State<SFTPDownloadedPage> {
                 return;
               }
               final f = File(file.absolute.path);
-              final data = await f.readAsString();
               final result = await AppRoute(
                 EditorPage(
-                  initCode: data,
-                  path: fileName,
+                  path: file.absolute.path,
                 ),
                 'sftp dled editor',
               ).go<String>(context);

lib/view/page/sftp/remote.dart

@@ -328,6 +328,7 @@ class _SFTPPageState extends State<SFTPPage> {
           )));
       return;
     }
+    context.pop();
 
     final remotePath = _getRemotePath(name);
     final localPath = await _getLocalPath(remotePath);

lib/view/page/snippet/list.dart

@@ -26,6 +26,9 @@ class _SnippetListPageState extends State<SnippetListPage> {
   @override
   Widget build(BuildContext context) {
     return Scaffold(
+      appBar: AppBar(
+        title: Text(_s.snippet),
+      ),
       body: _buildBody(),
       floatingActionButton: FloatingActionButton(
         heroTag: 'snippet',