flutter pub add arrow_path根據套件公開資料產生的選型評估，僅供參考。
ArrowPath 是一個 Flutter 套件，可簡化使用 Path 物件繪製箭頭。它讓開發者能輕鬆為任何曲線或路徑加上箭頭，支援組合多個箭頭以實現複雜設計。此套件非常適合用於視覺化方向流、圖表或互動式 UI 元素。支援所有主要平台——Android、iOS、Web、macOS、Windows 與 Linux，確保一致的呈現效果。ArrowPath 以效能與彈性為設計核心，可順暢整合至現有的繪圖工作流程中。
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。
Draw arrows with Path objects easily. Paths can be composited to add arrows to any curve and draw all at once.
The arrow is drawn using the direction of the tangent to the curve at the end of the curve. It features an adjustment parameter to also look at the tangent just before the end of the segment and rotate the tip of the arrow based on the angle difference to improve the look of the arrow when the curvature at the end is high.
Have a look at the example app to get started.
ArrowPath.make() is now deprecated, use ArrowPath.addTip() instead.
If you are not using the isDoubleSided argument of ArrowPath.make() then you can safely replace it by ArrowPath.addTip() without any other change.
If you are using the isDoubleSided argument of ArrowPath.make() then change yor code like this:
Before:
Path path = Path();
path.relativeLineTo(100, 100);
path = ArrowPath.make(path, isDoubleSided: true);
After:
Path path = Path();
path.relativeLineTo(100, 100);
path = ArrowPath.addTip(path);
path = ArrowPath.addTip(path, isBackward: true);