Subscript and Superscript a String in Android

java android string superscript subscript

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Solution 1

((TextView)findViewById(R.id.text)).setText(Html.fromHtml("X<sup>2</sup>"));

Common Tasks and How to Do Them in Android

Solution 2

Example:

equation = (TextView) findViewById(R.id.textView1);
SpannableStringBuilder cs = new SpannableStringBuilder("X3 + X2");
cs.setSpan(new SuperscriptSpan(), 1, 2, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
cs.setSpan(new RelativeSizeSpan(0.75f), 1, 2, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
cs.setSpan(new SuperscriptSpan(), 6, 7, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
cs.setSpan(new RelativeSizeSpan(0.75f), 6, 7, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
equation.setText(cs);

Solution 3

To all people asking, if you want to make it smaller besides of making super or subscript, you just need to add tag as well. EX:

"X <sup><small> 2 </small></sup>"

Solution 4

In the code just put this "\u00B2" Like this:

textView.setText("X\u00B2");

Solution 5

((TextView)findViewById(R.id.text)).setText(Html.fromHtml("X<sup><small>2</small></sup>"));

(or) From String Resource File:

<string name="test_string">
  <![CDATA[ X<sup><small>2</small></sup> ]]>
</string>

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Mohit Deshpande

I am a researcher at The Ohio State University in the field of computer vision and machine learning. I have worked as a mobile apps instructor for Zenva and current work as a writer for Zenva in machine learning.

Updated on November 06, 2020

Comments

Mohit Deshpande over 3 years

How can you print a string with a subscript or superscript? Can you do this without an external library? I want this to display in a TextView in Android.
- Omid Omidi over 10 years
  
  use [this][1] trick in listview and its textview. [1]: stackoverflow.com/a/22105902/1350021
Dandre Allison about 12 years

It technically isn't supporting HTML, that is creating a Spanned, which TextViews do support. Essentially CharSequences with style information.
JPM about 12 years

This doesn't work for me...but maybe its cause I set it inside my strings.xml file. It subscripts it for me but it clips it and no matter how much padding I put its always clipped.
Daniel Schuler about 11 years

This actually looks right, thanks for sharing! The Html.fromHTML() method is convenient, but the superscript isn't smaller.
A. Steenbergen over 9 years

Isn't parsing this html insanely expensive?
m.v.n.kalyani almost 9 years

i am new to stack over flow ,at that time dnt know how to use.
Pang over 8 years

Link in answer doesn't seem relevant anymore.
Pang over 8 years

Link in answer doesn't seem relevant anymore.
Zach Sperske almost 8 years

This is way better! The Html.fromHtml method can lead to the superscript text being cut off.
Zach Sperske almost 8 years

Thanks for this but the answer below using a SpannableStringBuilder is much better.
Mir-Ismaili over 7 years

fromHtml(String) was deprecated in Android N. Use fromHtml(String, int) instead.
Nobody over 7 years

When I use this method like to say 100 meter square by equation.setText(blah+cs); it doesn't work. Works fine separately though. How to get that work?
scienticious about 7 years

Far better than Html.fromHtml() method
Aryeetey Solomon Aryeetey almost 5 years

Please add explanation
Kolaaa almost 5 years

Hi,your answer was very helpful. However, what code can be used for subscript ? Also what are these codes called if i what to google them, are they unicodes ?
Gerardo Salazar Sánchez almost 5 years

Hi, yes is unicode, here a PDF whit all unicodes unicode.org/charts/PDF/U2070.pdf
Luca Murra over 4 years

According to Mir-Imaili, you can call the same function with Html.fromHtml(String, Html.FROM_HTML_MODE_LEGACY)
Izak about 4 years

Thanks. Very simple.