frhnfrq / MathView

Math Equation renderer for Android

MathView

MathView is a library to render Math equations in Android. It uses jqMath to render math equations.

Setup

Add it in your root build.gradle at the end of repositories:

allprojects {
    repositories {
		...
		maven { url 'https://jitpack.io' }
	}
}

Add implementation 'com.github.frhnfrq:MathView:1.2' into dependencies section of your module build.gradle file. For example:

dependencies {
    implementation 'com.github.frhnfrq:MathView:1.2'
}

Usage

Add MathView in your layout

<com.zanvent.mathview.MathView
    android:id="@+id/mathview"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

Get an instance of it in your code

MathView mathview = findViewById(R.id.mathview);
mathview.setText("If $ax^2+bx+c=0$ with $a≠0$, then: $$x={-b±√{b^2-4ac}}/{2a}$$");
mathview.setPixelScaleType(Scale.SCALE_DP);
mathview.setTextSize(16);
mathview.setTextColor("#111111");

Screenshot

How to

To learn how to write math equations in it, please have a look at jqMath.

Advantages

1. Faster than MathJax.
2. Change text size and color easily.
3. Supports HTML outside of the equation. Example

mathview.setText("This is a <b>straight</b> line, $\ax + \by = \c$");

Disadvantages

1. Special symbols are typed manually. Example: √ ∑ ∫ ← → + >
2. Some parts of the MathML standard are not yet implemented in jqMath, such as elementary school mathematics (e.g. “long division”), and “Content MathML.”

License

 Copyright 2018 Farhan Farooqui
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at

 http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.