1. 按钮样式

源码 按钮 flutter TextButton样式

1.1. ElevatedButton

ElevatedButton(
  child: Text("normal"),
  onPressed: () {},
);

1.2. TextButton

TextButton(
  child: Text("normal"),
  onPressed: () {},
)

1.3. OutlinedButton

OutlineButton(
  child: Text("normal"),
  onPressed: () {},
)

1.4. IconButton

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

1.5. 带图标的按钮

ElevatedButton.icon(
  icon: Icon(Icons.send),
  label: Text("发送"),
  onPressed: _onPressed,
),
OutlinedButton.icon(
  icon: Icon(Icons.add),
  label: Text("添加"),
  onPressed: _onPressed,
),
TextButton.icon(
  icon: Icon(Icons.info),
  label: Text("详情"),
  onPressed: _onPressed,
),