Update for Flutter 3.10 beta (#1746)

## Pre-launch Checklist

- [x] I read the [Flutter Style Guide] _recently_, and have followed its
advice.
- [x] I signed the [CLA].
- [x] I read the [Contributors Guide].
- [x] I updated/added relevant documentation (doc comments with `///`).
- [ ] All existing and new tests are passing.

---------

Co-authored-by: David Iglesias <ditman@gmail.com>
Co-authored-by: Mark Thompson <2554588+MarkTechson@users.noreply.github.com>
Co-authored-by: John Ryan <ryjohn@google.com>

experimental/pedometer/example/pubspec.yaml

@@ -19,7 +19,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 version: 1.0.0+1
 
 environment:
-  sdk: '>=2.19.5 <4.0.0'
+  sdk: ^3.0.0-0
 
 # Dependencies specify other packages that your package needs in order to work.
 # To automatically upgrade your package dependencies to the latest versions

experimental/pedometer/lib/pedometer_bindings_generated.dart

@@ -1,15 +1,7 @@
 // AUTO GENERATED FILE, DO NOT EDIT.
 //
 // Generated by `package:ffigen`.
-
-// ignore_for_file: library_private_types_in_public_api
-// ignore_for_file: non_constant_identifier_names
-// ignore_for_file: camel_case_types
-// ignore_for_file: no_leading_underscores_for_local_identifiers
-// ignore_for_file: void_checks
-// ignore_for_file: constant_identifier_names
-// ignore_for_file: annotate_overrides
-
+// ignore_for_file: type=lint
 import 'dart:ffi' as ffi;
 import 'package:ffi/ffi.dart' as pkg_ffi;
 
@@ -26232,13 +26224,13 @@ class NSObject extends _ObjCWrapper {
   }
 }
 
-class ObjCSel extends ffi.Opaque {}
+final class ObjCSel extends ffi.Opaque {}
 
-class ObjCObject extends ffi.Opaque {}
+final class ObjCObject extends ffi.Opaque {}
 
 typedef instancetype = ffi.Pointer<ObjCObject>;
 
-class _NSZone extends ffi.Opaque {}
+final class _NSZone extends ffi.Opaque {}
 
 class Protocol extends _ObjCWrapper {
   Protocol._(ffi.Pointer<ObjCObject> id, PedometerBindings lib,
@@ -29348,7 +29340,7 @@ class NSData extends NSObject {
   }
 }
 
-class _NSRange extends ffi.Struct {
+final class _NSRange extends ffi.Struct {
   @ffi.UnsignedLong()
   external int location;
 
@@ -31659,7 +31651,7 @@ class ObjCBlock extends _ObjCBlockBase {
   ffi.Pointer<_ObjCBlock> get pointer => _id;
 }
 
-class _ObjCBlockDesc extends ffi.Struct {
+final class _ObjCBlockDesc extends ffi.Struct {
   @ffi.UnsignedLong()
   external int reserved;
 
@@ -31673,7 +31665,7 @@ class _ObjCBlockDesc extends ffi.Struct {
   external ffi.Pointer<ffi.Char> signature;
 }
 
-class _ObjCBlock extends ffi.Struct {
+final class _ObjCBlock extends ffi.Struct {
   external ffi.Pointer<ffi.Void> isa;
 
   @ffi.Int()
@@ -33120,9 +33112,12 @@ class NSDictionary extends NSObject {
   }
 
   static NSDictionary dictionaryWithObject_forKey_(
-      PedometerBindings _lib, NSObject object, NSObject key) {
-    final _ret = _lib._objc_msgSend_140(_lib._class_NSDictionary1,
-        _lib._sel_dictionaryWithObject_forKey_1, object._id, key._id);
+      PedometerBindings _lib, NSObject object, NSObject? key) {
+    final _ret = _lib._objc_msgSend_140(
+        _lib._class_NSDictionary1,
+        _lib._sel_dictionaryWithObject_forKey_1,
+        object._id,
+        key?._id ?? ffi.nullptr);
     return NSDictionary._(_ret, _lib, retain: true, release: true);
   }
 
@@ -33588,7 +33583,7 @@ class ObjCBlock10 extends _ObjCBlockBase {
   ffi.Pointer<_ObjCBlock> get pointer => _id;
 }
 
-class NSFastEnumerationState extends ffi.Struct {
+final class NSFastEnumerationState extends ffi.Struct {
   @ffi.UnsignedLong()
   external int state;
 
@@ -39018,9 +39013,9 @@ class NSMutableDictionary extends NSDictionary {
     return _lib._objc_msgSend_15(_id, _lib._sel_removeObjectForKey_1, aKey._id);
   }
 
-  void setObject_forKey_(NSObject anObject, NSObject aKey) {
-    return _lib._objc_msgSend_460(
-        _id, _lib._sel_setObject_forKey_1, anObject._id, aKey._id);
+  void setObject_forKey_(NSObject anObject, NSObject? aKey) {
+    return _lib._objc_msgSend_460(_id, _lib._sel_setObject_forKey_1,
+        anObject._id, aKey?._id ?? ffi.nullptr);
   }
 
   @override
@@ -39061,9 +39056,9 @@ class NSMutableDictionary extends NSDictionary {
         _id, _lib._sel_setDictionary_1, otherDictionary?._id ?? ffi.nullptr);
   }
 
-  void setObject_forKeyedSubscript_(NSObject obj, NSObject key) {
-    return _lib._objc_msgSend_460(
-        _id, _lib._sel_setObject_forKeyedSubscript_1, obj._id, key._id);
+  void setObject_forKeyedSubscript_(NSObject obj, NSObject? key) {
+    return _lib._objc_msgSend_460(_id, _lib._sel_setObject_forKeyedSubscript_1,
+        obj._id, key?._id ?? ffi.nullptr);
   }
 
   static NSMutableDictionary dictionaryWithCapacity_(
@@ -39118,9 +39113,12 @@ class NSMutableDictionary extends NSDictionary {
   }
 
   static NSMutableDictionary dictionaryWithObject_forKey_(
-      PedometerBindings _lib, NSObject object, NSObject key) {
-    final _ret = _lib._objc_msgSend_140(_lib._class_NSMutableDictionary1,
-        _lib._sel_dictionaryWithObject_forKey_1, object._id, key._id);
+      PedometerBindings _lib, NSObject object, NSObject? key) {
+    final _ret = _lib._objc_msgSend_140(
+        _lib._class_NSMutableDictionary1,
+        _lib._sel_dictionaryWithObject_forKey_1,
+        object._id,
+        key?._id ?? ffi.nullptr);
     return NSMutableDictionary._(_ret, _lib, retain: true, release: true);
   }
 
@@ -46212,7 +46210,7 @@ class NSScanner extends NSObject {
   }
 }
 
-class NSDecimal extends ffi.Opaque {}
+final class NSDecimal extends ffi.Opaque {}
 
 class NSException extends NSObject {
   NSException._(ffi.Pointer<ObjCObject> id, PedometerBindings lib,
@@ -46610,7 +46608,7 @@ class NSRunLoop extends NSObject {
   }
 }
 
-class __CFRunLoop extends ffi.Opaque {}
+final class __CFRunLoop extends ffi.Opaque {}
 
 class NSTimer extends NSObject {
   NSTimer._(ffi.Pointer<ObjCObject> id, PedometerBindings lib,
@@ -51186,7 +51184,7 @@ abstract class NSOperationQueuePriority {
   static const int NSOperationQueuePriorityVeryHigh = 8;
 }
 
-class dispatch_queue_s extends ffi.Opaque {}
+final class dispatch_queue_s extends ffi.Opaque {}
 
 class NSPointerArray extends NSObject {
   NSPointerArray._(ffi.Pointer<ObjCObject> id, PedometerBindings lib,
@@ -51958,7 +51956,7 @@ class NSProcessInfo extends NSObject {
   }
 }
 
-class NSOperatingSystemVersion extends ffi.Struct {
+final class NSOperatingSystemVersion extends ffi.Struct {
   @ffi.Long()
   external int majorVersion;
 
@@ -54306,9 +54304,9 @@ abstract class NSURLCredentialPersistence {
   static const int NSURLCredentialPersistenceSynchronizable = 3;
 }
 
-class __SecIdentity extends ffi.Opaque {}
+final class __SecIdentity extends ffi.Opaque {}
 
-class __SecTrust extends ffi.Opaque {}
+final class __SecTrust extends ffi.Opaque {}
 
 /// !
 /// @class NSURLProtectionSpace

experimental/pedometer/pubspec.yaml

@@ -4,7 +4,7 @@ version: 0.0.1
 publish_to: "none"
 
 environment:
-  sdk: '>=2.19.5 <4.0.0'
+  sdk: ^3.0.0-0
   flutter: ">=2.11.0"
 
 dependencies:
@@ -15,7 +15,7 @@ dependencies:
   ffi: ^2.0.1
 
 dev_dependencies:
-  ffigen: ^7.2.1
+  ffigen: ^8.0.0
   jnigen: ^0.4.0
   flutter_test:
     sdk: flutter