Add missing files.

Author: CodingAleCR

example/lib/main.dart

@@ -42,9 +42,9 @@ class _MyHomePageState extends State<MyHomePage> {
           padding: const EdgeInsets.all(8.0),
           child: ListView(
             children: [
-              PasswordFormField(),
+              PasswordTextField(),
               SizedBox(height: 16),
-              PasswordFormField(
+              PasswordTextField(
                 decoration: InputDecoration(
                   border: OutlineInputBorder(),
                 ),

lib/material/password_textfield.dart

@@ -0,0 +1,75 @@
+import 'package:flutter/material.dart';
+
+class PasswordTextField extends StatefulWidget {
+  final TextEditingController controller;
+  final InputDecoration decoration;
+  final Function(String) validator;
+  final bool enabled;
+  final AutovalidateMode autovalidateMode;
+  final bool autocorrect;
+
+  PasswordTextField({
+    this.controller,
+    this.enabled,
+    this.validator,
+    this.autovalidateMode,
+    this.autocorrect = true,
+    this.decoration,
+  });
+
+  @override
+  _PasswordTextFieldState createState() => _PasswordTextFieldState();
+}
+
+class _PasswordTextFieldState extends State<PasswordTextField> {
+  bool _passwordHidden;
+
+  @override
+  void initState() {
+    super.initState();
+    _passwordHidden = true;
+  }
+
+  void togglePasswordVisibility() {
+    setState(() {
+      _passwordHidden = !_passwordHidden;
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return TextFormField(
+      controller: widget.controller,
+      obscureText: _passwordHidden,
+      validator: widget.validator,
+      autovalidateMode: widget.autovalidateMode,
+      autocorrect: widget.autocorrect,
+      enabled: widget.enabled,
+      decoration: _buildDecoration(),
+    );
+  }
+
+  InputDecoration _buildDecoration() {
+    var decoration;
+    if (widget.decoration == null) {
+      decoration = InputDecoration(
+        suffixIcon: IconButton(
+          icon: Icon(
+            _passwordHidden ? Icons.visibility : Icons.visibility_off,
+          ),
+          onPressed: togglePasswordVisibility,
+        ),
+      );
+    } else {
+      decoration = widget.decoration.copyWith(
+        suffixIcon: IconButton(
+          icon: Icon(
+            _passwordHidden ? Icons.visibility : Icons.visibility_off,
+          ),
+          onPressed: togglePasswordVisibility,
+        ),
+      );
+    }
+    return decoration;
+  }
+}