flutter pub add ensure_visible_when_focused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，當特定小部件獲得焦點時，會自動滾動畫面以確保其可見。對於內容較長的表單，此套件透過防止輸入欄位被鍵盤遮擋來提升易用性。它可在所有主要平台運作，包括行動裝置、網頁與桌面端，提供無縫的使用者體驗。該小部件可輕鬆整合至現有的表單佈局中，無需複雜的捲動邏輯。
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。
I was having a hard time scrolling to a specific wdget in a scenario where I had a very large form, with lots of form fields.
I found an issue with no concrete answer https://github.com/flutter/flutter/issues/58877
After digging a litlle deeper I found a solution to this problem https://www.didierboelens.com/2018/04/hint-4 -ensure-a-textfield-or-textformfield-is-visible-in-the-viewport-when-has-the-focus/. Hence the idea of creating and making this widget available.
This widget solves this problem in a very elegant way. You just have to give the same FocusNode of the widget you want to scroll to.
The widget is very simple to use. You need to Wrap your widget on a EnsureVisibleWhenFocused widget. You have to pass the FocusNode of the widget you want to scroll to when it's given focus.
EnsureVisibleWhenFocused(
focusNode: _focusNode,
child: TextFormField(
focusNode: _focusNode,
),
)
With the setup above, every time the TextFormField gains focus, a scroll will be made to it.
You can give focus to a field just doing:
_focusNode.requestFocus();
You can configure more things, such as the scroll duration and it's curve.
For any suggestions or bug report please head to issue tracker.
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