validaciones de inputs

lib/src/screens/professional_profile.dart

@@ -450,7 +450,6 @@ class ProfessionalProfileScreenState extends State<ProfessionalProfileScreen> {
 
   @override
   Widget build(BuildContext context) {
-
     String profession = _profession.toString();
     double _space = 10;
 
@@ -493,6 +492,12 @@ class ProfessionalProfileScreenState extends State<ProfessionalProfileScreen> {
                         TextFormField(
                           keyboardType: TextInputType.number,
                           controller: _cedulaController,
+                          validator: (String? value) {
+                            if (value == null || value.isEmpty) {
+                              return 'Ingrese una cedula válida';
+                            }
+                            return null;
+                          },
                           decoration: const InputDecoration(
                               prefixIcon: Icon(Icons.person_outline),
                               hintText: 'Cedula (Obligatorio)'),
@@ -638,13 +643,47 @@ class ProfessionalProfileScreenState extends State<ProfessionalProfileScreen> {
                       ],
                     )),
               ),
+              Container(
+                margin: const EdgeInsets.only(
+                    left: 40, right: 40, top: 40, bottom: 0),
+                padding:
+                    const EdgeInsets.symmetric(horizontal: 20, vertical: 15),
+                decoration: BoxDecoration(
+                  color: const Color(0xFFD6F4FF),
+                  borderRadius: BorderRadius.circular(20),
+                  boxShadow: [
+                    BoxShadow(
+                      color: Colors.grey.withOpacity(0.5),
+                      spreadRadius: 1,
+                      blurRadius: 5,
+                      offset: const Offset(1, 3),
+                    ),
+                  ],
+                ),
+                child: Row(
+                  children: const [
+                    Icon(
+                      Icons.error_outline,
+                      size: 27,
+                      color: Colors.black54,
+                    ),
+                    SizedBox(width: 15),
+                    Text(
+                      'Para añadir mas de una especialidad, \nenvie mas fotos y separe por comas (,).',
+                      style: TextStyle(color: Colors.black, fontSize: 14),
+                    ),
+                  ],
+                ),
+              ),
               Container(
                 alignment: Alignment.bottomCenter,
                 margin: const EdgeInsets.only(
                     top: 80, right: 70, left: 70, bottom: 30),
                 child: ElevatedButton(
                   onPressed: () {
-                    sendInfo();
+                    if (_formKey.currentState!.validate()) {
+                      sendInfo();
+                    }
                   },
                   style: ElevatedButton.styleFrom(
                     backgroundColor: const Color(0xFF2BA4EC),