Refactor Flutter app code and update dependencies for stability

example/ios/Flutter/ephemeral/flutter_lldb_helper.py

@@ -0,0 +1,32 @@
+#
+# Generated file, do not edit.
+#
+
+import lldb
+
+def handle_new_rx_page(frame: lldb.SBFrame, bp_loc, extra_args, intern_dict):
+    """Intercept NOTIFY_DEBUGGER_ABOUT_RX_PAGES and touch the pages."""
+    base = frame.register["x0"].GetValueAsAddress()
+    page_len = frame.register["x1"].GetValueAsUnsigned()
+
+    # Note: NOTIFY_DEBUGGER_ABOUT_RX_PAGES will check contents of the
+    # first page to see if handled it correctly. This makes diagnosing
+    # misconfiguration (e.g. missing breakpoint) easier.
+    data = bytearray(page_len)
+    data[0:8] = b'IHELPED!'
+
+    error = lldb.SBError()
+    frame.GetThread().GetProcess().WriteMemory(base, data, error)
+    if not error.Success():
+        print(f'Failed to write into {base}[+{page_len}]', error)
+        return
+
+def __lldb_init_module(debugger: lldb.SBDebugger, _):
+    target = debugger.GetDummyTarget()
+    # Caveat: must use BreakpointCreateByRegEx here and not
+    # BreakpointCreateByName. For some reasons callback function does not
+    # get carried over from dummy target for the later.
+    bp = target.BreakpointCreateByRegex("^NOTIFY_DEBUGGER_ABOUT_RX_PAGES$")
+    bp.SetScriptCallbackFunction('{}.handle_new_rx_page'.format(__name__))
+    bp.SetAutoContinue(True)
+    print("-- LLDB integration loaded --")

example/ios/Flutter/ephemeral/flutter_lldbinit

@@ -0,0 +1,5 @@
+#
+# Generated file, do not edit.
+#
+
+command script import --relative-to-command-file flutter_lldb_helper.py

example/lib/main.dart

@@ -2,10 +2,12 @@ import 'package:flutter/material.dart';
 import 'package:flutter_summernote/flutter_summernote.dart';
 
 void main() {
-  runApp(MyApp());
+  runApp(const MyApp());
 }
 
 class MyApp extends StatelessWidget {
+  const MyApp({Key? key}) : super(key: key);
+
   // This widget is the root of your application.
   @override
   Widget build(BuildContext context) {
@@ -14,22 +16,22 @@ class MyApp extends StatelessWidget {
       theme: ThemeData(
         primarySwatch: Colors.blue,
       ),
-      home: MyHomePage(title: 'Demo Flutter Summernote'),
+      home: const MyHomePage(title: 'Demo Flutter Summernote'),
     );
   }
 }
 
 class MyHomePage extends StatefulWidget {
-  MyHomePage({required this.title});
+  const MyHomePage({Key? key, required this.title}) : super(key: key);
 
   final String title;
 
   @override
-  _MyHomePageState createState() => _MyHomePageState();
+  MyHomePageState createState() => MyHomePageState();
 }
 
-class _MyHomePageState extends State<MyHomePage> {
-  GlobalKey<FlutterSummernoteState> _keyEditor = GlobalKey();
+class MyHomePageState extends State<MyHomePage> {
+  final GlobalKey<FlutterSummernoteState> _keyEditor = GlobalKey();
   String result = '';
 
   @override
@@ -40,11 +42,12 @@ class _MyHomePageState extends State<MyHomePage> {
         elevation: 0,
         actions: <Widget>[
           IconButton(
-            icon: Icon(Icons.save),
+            icon: const Icon(Icons.save),
             onPressed: () async {
               final value = (await _keyEditor.currentState?.getText());
+              if (!context.mounted) return;
               ScaffoldMessenger.of(context).showSnackBar(SnackBar(
-                duration: Duration(seconds: 5),
+                duration: const Duration(seconds: 5),
                 content: Text(value ?? '-'),
               ));
             },