flutter pub add flutter_grid_button根據套件公開資料產生的選型評估，僅供參考。
一個 Flutter 小部件，可將按鈕排列成可自訂的網格佈局。非常適合建立數字鍵盤、計算機或任何基於網格的按鈕系統。它簡化了在多個平台創建響應式且視覺一致的按鈕網格的過程。該套件支援各種間距、對齊和按鈕樣式的設定，使其能靈活滿足不同的 UI 需求。設計時著重於簡單性和可重用性，可無縫整合至現有的 Flutter 專案中。
以下為關聯原始碼儲存庫的 README 原文快照，最新內容請造訪原始碼儲存庫。
Flutter widget that arrange buttons in a grid. It is useful for making a number pad, calculator, and so on.
To use this plugin, add flutter_grid_button as a dependency in your pubspec.yaml file.
dependencies:
flutter_grid_button:
Import the library in your file.
import 'package:flutter_grid_button/flutter_grid_button.dart';
See the example directory for a complete sample app using GridButton.
Or use the GridButton like below.
GridButton(
onPressed: (String value) {
/*...*/
},
items: [
[
GridButtonItem(title: "1"),
GridButtonItem(child: Text("2")),
GridButtonItem(title: "3", flex: 2),
],
[
GridButtonItem(title: "a", value: "100", longPressValue: "long"),
GridButtonItem(title: "b", color: Colors.lightBlue)
],
],
)