Flutter TeX

A Flutter Package to render so many types of equations based on LaTeX, most commonly used are as followings:

• Mathematics / Maths Equations (Algebra, Calculus, Geometry, Geometry etc…)
• Physics Equations
• Signal Processing Equations
• Chemistry Equations
• Statistics / Stats Equations
• It also includes full HTML with JavaScript support.

Rendering of equations depends on mini-mathjax a simplified version of MathJax a JavaScript library.

This package mainly depends on webview_flutter plugin.

Use this package as a library in your flutter Application

1: Add this to your package’s pubspec.yaml file:

dependencies:
  flutter_tex: ^1.0.11

2: You can install packages from the command line:

$ flutter packages get

Alternatively, your editor might support flutter packages get. Check the docs for your editor to learn more.

3: Make sure to add this line android:usesCleartextTraffic="true" in your <project-directory>/android/app/src/main/AndroidManifest.xml under application like this.

<application
       android:usesCleartextTraffic="true">
</application>

and permissions

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.WAKE_LOCK" />

For iOS add following code in your <project-directory>/ios/Runner/Info.plist

<key>NSAppTransportSecurity</key>
  
  <dict>
    <key>NSAllowsArbitraryLoads</key> <true/>
  </dict>

<key>io.flutter.embedded_views_preview</key> <true/> 

4: Now in your Dart code, you can use:

import 'package:flutter_tex/flutter_tex.dart'; 

5: Now you can use TeXHTML widget like this.

    TeXView(
          teXHTML: r"""$$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$<br> """,

          onRenderFinished: (height) {
                print("Widget Height is : $height")
                },

          onPageFinished: (string) {
                print("Page Loading finished");
              },
        )

Complete working application Example

Known Issues:

• A bit slow rendering speed. It takes 1-2 seconds to render after application loaded.

Screenshots

Download Flutter TeX Source Code on GitHub

https://github.com/shah-xad/flutter_tex