How to change the font size while printing in android?

Question

I am sending the text to the bluetooth printer via my android cell. Both the printer and my device are connected via the bluetooth. It\'s Working fine and I

Answer 1

I am not sure, but you may be able to achieve this with the Java span method for setting up font style.

Try something like this:

int start=editbox.getSelectionStart();

int end=editbox.getSelectionEnd();

Spannable span=(Spannable)editbox.getText();

StyleSpan f = new StyleSpan( 
                        Typeface.createFromAsset(getAssets(),
                         "fonts/genbkbasr.ttf"));

span.setSpan(f, start,end, 0);

Similarly, you can apply font style, font color etc...

For more detail check these:

Android Development: How To Replace Part of an EditText with a Spannable

How to use SpannableString with Regex in android?