flutter pub add math_keyboard根據套件公開資料產生的選型評估，僅供參考。
math_keyboard 套件透過螢幕軟體鍵盤或實體鍵盤，讓 Flutter 應用程式中的數學表達式輸入更直覺。它支援排版呈現，確保輸入欄位內的數學符號清晰且視覺上準確。專為教育與科學應用設計，可在多個平台無縫整合至 Flutter 的 UI 架構中。該套件能處理複雜的表示式並正確格式化，非常適合互動式學習工具與數學導向介面。
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。
math_keyboard is a Flutter package that allows editing math expressions using a typeset input
field (so-called "math field") and a custom-made fully integrated math keyboard in Flutter only -
no plugins, no web views.
The math_keyboard package provides a widget that behaves like a Flutter TextField with the same
full integration, i.e. focus tree support, input decoration support, and both an
on-screen software keyboard as well as physical keyboard input support. On top of that, the
math field typesetting uses TeX and the package supports converting to math expressions (that e.g.
can be used for calculation).
math_keyboard is an open source project with the aim of providing a way to edit math expression
providing the best user experience in terms of input and UI as well as allowing accurate evaluation
of the mathematical expressions entered by the user. This is used by the
simpleclub app, hence, the association. It is also maintained by simpleclub
(see the LICENSE file).
See the package README for features and usage information.
You can also try the demo app or view the package on Pub →
In the following, some high-level information regarding the implementation of the package is described. This is useful in case you are curious or intend to contribute.
For information on implementing math_keyboard into your own app, please see the
package README.
Notice how the math_keyboard package includes a major feature that allows working with the input
expressions in a mathematical matter, i.e. by converting them into "math expressions" (this is how
we refer to the format in the context of this project).
We achieve this by essentially working with two formats:
This "data format" depends on the math_expressions package. Handling the
expressions in this format allows you to e.g. evaluate the expressions.
Both the math field content, i.e. the expressions typed by the user, as well as some symbols on the
keyboard itself are typeset using TeX. For TeX typesetting in Flutter, we created our own proof of
concept renderer in early 2020, called CaTeX. This project is on-hold for now and in the
meantime, we collaborated on the flutter_math package that aims to achieve something similar.
Due to lack of maintenance on that repo, we are currently using our forked version,
flutter_math_fork. Note that our ultimate goal is fully integrating the math_keyboard package
with the catex package, which would give us maximum control over the rendering of the typeset math.
Our mission with open source repositories like math_keyboard in particular is creating an
ecosystem of science and education related packages for Flutter, allowing users on all platforms to
use the optimal tools for learning.
This is also why we want to share and collaborate on this software as a way to give back to the community. Any contributions are more than welcome!
See our contributing guide for more information.
You might notice that some features that you would expect from the math_keyboard package are
missing or something is not working as expected. In that case, please file an issue.
In general, we can of course never fully solve every use case, however, especially in this case we are aware of a few shortcomings. For example the customization options of the keyboard are currently limited because this has simply not yet been a requirement in our internal usage. In that case, please consider contributing pull requests to this repo in order to allow as many use cases to be covered as possible :) Please refer to the contributing guide for that.
The math_keyboard repository is divided into multiple packages. These packages are the following:
| Package | Content |
|---|---|
math_keyboard |
Main package implementation |
math_keyboard_demo |
Demo app |
During the research phase of this project, we came across the Num++ app, which served as
an inspiration for the math expression parsing part of the package.
The main difference between that app and this package (apart from one being a calculator app and the
other being a generalized usable package) is the fact that Num++ uses a web view and MathQuill for
editing the expression while we built the input field and editing ourselves.
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