[APP-9897] update flutter sdk (and small arm improvements)

lib/src/components/arm/arm.dart

@@ -1,6 +1,5 @@
+import '../../../viam_sdk.dart';
 import '../../gen/common/v1/common.pb.dart';
-import '../../resource/base.dart';
-import '../../robot/client.dart';
 
 /// {@category Components}
 /// Arm represents a physical robot arm that exists in three-dimensional space.
@@ -80,6 +79,15 @@ abstract class Arm extends Resource {
   /// For more information, see [Arm component](https://docs.viam.com/dev/reference/apis/components/arm/#ismoving).
   Future<bool> isMoving();
 
+  /// Get the kinematics data associated with the [Arm]
+  ///
+  /// ```
+  /// var kinematics = await myArm.getKinematics();
+  /// ```
+  ///
+  /// For more information, see [Arm component](https://docs.viam.com/dev/reference/apis/components/arm/#getkinematics).
+  Future<Kinematics> getKinematics({Map<String, dynamic>? extra});
+
   /// Get the [ResourceName] for this [Arm] with the given [name].
   ///
   /// ```

lib/src/components/arm/client.dart

@@ -5,6 +5,7 @@ import '../../gen/component/arm/v1/arm.pbgrpc.dart';
 import '../../gen/google/protobuf/struct.pb.dart';
 import '../../resource/base.dart';
 import '../../utils.dart';
+import '../gripper/gripper.dart';
 import 'arm.dart';
 
 /// {@category Components}
@@ -91,4 +92,13 @@ class ArmClient extends Arm with RPCDebugLoggerMixin implements ResourceRPCClien
     final response = await client.doCommand(request, options: callOptions);
     return response.result.toMap();
   }
+
+  @override
+  Future<Kinematics> getKinematics({Map<String, dynamic>? extra}) async {
+    final request = GetKinematicsRequest()
+      ..name = name
+      ..extra = extra?.toStruct() ?? Struct();
+    final response = await client.getKinematics(request, options: callOptions);
+    return Kinematics.fromProto(response);
+  }
 }

lib/src/components/arm/service.dart

@@ -84,9 +84,12 @@ class ArmService extends ArmServiceBase {
   }
 
   @override
-  Future<GetKinematicsResponse> getKinematics(ServiceCall call, GetKinematicsRequest request) {
-    // TODO: implement getKinematics
-    throw UnimplementedError();
+  Future<GetKinematicsResponse> getKinematics(ServiceCall call, GetKinematicsRequest request) async {
+    final arm = _armFromManager(request.name);
+    final response = await arm.getKinematics(extra: request.extra.toMap());
+    return GetKinematicsResponse()
+      ..format = response.format
+      ..kinematicsData = response.raw;
   }
 
   @override

lib/widgets/resources/arm_widgets/joint_positions_widget.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 
+import '../../../src/utils.dart';
 import '../../../viam_sdk.dart' as viam;
 import '../arm.dart';
 
@@ -20,6 +21,7 @@ class JointPositionsWidget extends StatefulWidget {
 class _JointPositionsWidgetState extends State<JointPositionsWidget> {
   List<double> _jointValues = [];
   bool _isLive = false;
+  bool _isLoading = false;
   List<TextEditingController> _textControllers = [];
 
   @override
@@ -39,21 +41,39 @@ class _JointPositionsWidgetState extends State<JointPositionsWidget> {
   }
 
   Future<void> _getJointPositions() async {
-    for (final controller in _textControllers) {
-      controller.dispose();
-    }
-
-    _jointValues = await widget.arm.jointPositions();
-    _textControllers = List.generate(
-      _jointValues.length,
-      (index) => TextEditingController(text: _jointValues[index].toStringAsFixed(1)),
-    );
-    if (mounted) {
-      setState(() {});
+    if (_isLoading) return;
+    _isLoading = true;
+    try {
+      _jointValues = await widget.arm.jointPositions();
+
+      if (mounted) {
+        if (_textControllers.isEmpty || _textControllers.length != _jointValues.length) {
+          for (final controller in _textControllers) {
+            controller.dispose();
+          }
+          _textControllers = List.generate(
+            _jointValues.length,
+            (index) => TextEditingController(text: _jointValues[index].toStringAsFixed(1)),
+          );
+        } else {
+          for (int i = 0; i < _jointValues.length; i++) {
+            _textControllers[i].text = _jointValues[i].toStringAsFixed(1);
+          }
+        }
+        setState(() {});
+      }
+    } catch (e) {
+      if (mounted) await showErrorDialog(context, title: 'An error occurred', error: e.toString());
+    } finally {
+      if (mounted) {
+        _isLoading = false;
+      }
     }
   }
 
   void _updateJointValue(int index, double value) {
+    if (!mounted || _textControllers.isEmpty || index >= _textControllers.length) return;
+
     const double minPosition = -359.0;
     const double maxPosition = 359.0;
     final clampedValue = value.clamp(minPosition, maxPosition);
@@ -187,7 +207,7 @@ class _BuildJointControlRow extends StatelessWidget {
                   textAlign: TextAlign.center,
                   keyboardType: const TextInputType.numberWithOptions(decimal: true, signed: true),
                   inputFormatters: [
-                    FilteringTextInputFormatter.allow(RegExp(r'^\d+\.?\d{0,1}')),
+                    FilteringTextInputFormatter.allow(RegExp(r'^-?\d*\.?\d*')),
                   ],
                   onSubmitted: onSubmitted,
                 ),