feito o cadastro do cidadão

lib/controllers/format_txt.dart

@@ -0,0 +1,9 @@
+import 'package:flutter/services.dart';
+
+class FormatText extends TextInputFormatter{
+  @override
+  TextEditingValue formatEditUpdate(
+  TextEditingValue txtOdl,TextEditingValue txtNew){
+   return txtNew.copyWith(text: txtNew.text.toUpperCase());
+  }
+}