user-interface - 如何调整 TextField 的后缀/suffixIcon 高度？

Question

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: SafeArea(
        child: Scaffold(
          body: Column(
            children: [
              Container(
                color: Colors.orange,
                child: TextField(
                  decoration: InputDecoration(
                    suffix: IconButton(
                        icon: Icon(Icons.check_circle),
                        onPressed: () {
                          print('222');
                        }),
                  ),
                ),
              ),
            ],
          ),
        ),
      ),
    );
  }
}

如何强制 check_circle 图标自动调整大小以匹配实际 TextField 的高度，即，根据其光标高度？

Answer 1

改用suffixIcon。

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: SafeArea(
        child: Scaffold(
          body: Column(
            children: [
              Container(
                color: Colors.orange,
                child: TextField(
                  decoration: InputDecoration(
                    suffixIcon: IconButton(
                        icon: Icon(Icons.check_circle),
                        onPressed: () {
                          print('222');
                        }),
                  ),
                ),
              ),
            ],
          ),
        ),
      ),
    );
  }
}