How To Hide Show Password Using Flutter Android App

import 'package:flutter/material.dart';

void main() => runApp(new MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: MyHomePage(),
    );
  }
}
class MyHomePage extends StatefulWidget {
  @override
  State<StatefulWidget> createState() => MyHomePageState();
}

class MyHomePageState extends State<MyHomePage> {
  bool _showPassword = false;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        backgroundColor: Colors.blue[800],
        title: Text("Hide Show Password Input Field"),
      ),
      body: Column(
        children: <Widget>[
          _buildPasswordTextField(),
        ],
      ),
    );
  }

  Widget _buildPasswordTextField() {
    return Column(
      mainAxisAlignment: MainAxisAlignment.center,
      children: [
        Center(
          child: Padding(
            padding: const EdgeInsets.all(20.0),
            child: TextField(
              obscureText: !this._showPassword,
              decoration: InputDecoration(
                enabledBorder: OutlineInputBorder(
                  borderRadius: BorderRadius.all(Radius.circular(12.0)),
                  borderSide: BorderSide(color: Colors.black26),
                ),
                focusedBorder: OutlineInputBorder(
                  borderRadius: BorderRadius.all(Radius.circular(12.0)),
                  borderSide: BorderSide(color: Colors.grey),
                ),
                contentPadding: EdgeInsets.all(15),
                labelText: 'password',
                prefixIcon: Icon(Icons.security),
                suffixIcon: IconButton(
                  icon: Icon(
                    Icons.remove_red_eye,
                    color: this._showPassword ? Colors.blue[700] : Colors.grey,
                  ),
                  onPressed: () {
                    setState(() => this._showPassword = !this._showPassword);
                  },
                ),
              ),
            ),
          ),
        ),
      ],
    );
  }
}