شرح استخدام ويدجت IconButton في فلاتر

IconButton(
  icon: Icon(Icons.add),
  onPressed: () {},
),

IconButton(
  icon: Icon(Icons.add),
  onPressed: () {
    // Add new item
  },
),

IconButton(
  icon: Icon(Icons.add),
  onPressed: () {
    // Add new item
  },
  tooltip: 'Add new item',
),

IconButton(
  icon: Icon(Icons.add),
  onPressed: () {
    // Add new item
  },
  color: Colors.blue,
),

IconButton(
  icon: Icon(Icons.add),
  onPressed: () {
    // Add new item
  },
  splashColor: Colors.blueAccent,
),

IconButton(
  icon: Icon(Icons.add),
  onPressed: () {
    // Add new item
  },
  highlightColor: Colors.blueGrey,
),

IconButton(
  icon: Icon(Icons.add),
  onPressed: null,
  disabledColor: Colors.grey,
),

IconButton(
  icon: Icon(Icons.add),
  onPressed: () {
    // Add new item
  },
  iconSize: 32,
),

IconButton(
  icon: Icon(Icons.add),
  onPressed: () {
    // Add new item
  },
  padding: EdgeInsets.all(16),
),

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key? key, required this.title}) : super(key: key);

  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;

  void _incrementCounter() {
    setState(() {
      _counter++;
    });
  }

  void _decrementCounter() {
    setState(() {
      _counter--;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            const Text(
              'Counter:',
              style: TextStyle(fontSize: 24),
            ),
            Text(
              '$_counter',
              style: const TextStyle(fontSize: 48, fontWeight: FontWeight.bold),
            ),
          ],
        ),
      ),
      floatingActionButton: Row(
        mainAxisAlignment: MainAxisAlignment.center,
        children: <Widget>[
          IconButton(
            icon: const Icon(Icons.remove),
            onPressed: _decrementCounter,
          ),
          const SizedBox(width: 16),
          IconButton(
            icon: const Icon(Icons.add),
            onPressed: _incrementCounter,
          ),
        ],
      ),
    );
  }
}