How Can I Display Subscripts and Superscripts in Android TextViews?
Dec 03, 2024 pm 12:48 PMDisplaying Subscript and Superscript Strings in Android
Subscripts and superscripts add depth and precision to text, particularly in mathematical and scientific writing. In Android, you can display these special characters without relying on external libraries.
Subscript with HTML
One approach is to use HTML tags within a TextView. The following code renders the subscript "2" after the letter "X" using HTML:
((TextView)findViewById(R.id.text)).setText(Html.fromHtml("X<sup>2</sup>"));
Markdown Support
For newer versions of Android (API level 24 ), you can also use Markdown syntax for superscripts and subscripts in TextView:
((TextView)findViewById(R.id.text)).setText("~superscript\nX~subscript");
This syntax automatically formats the text as superscript and subscript, respectively.
Custom Unicode Characters
Another option is to directly use Unicode characters for subscripts and superscripts. However, this may not be universally supported across devices. You can find the Unicode characters for these symbols at unicode-table.com.
String subscript2 = "\u2082"; String superscript2 = "\u00B2";
Note that these methods apply directly to TextView and require no additional libraries or external support.
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