Method setSize

app/src/main/java/eu/faircode/email/StyleHelper.java:641–663

(EditText etBody, int start, int end, Float size, boolean select)

    }

    static boolean setSize(EditText etBody, int start, int end, Float size, boolean select) {
        Log.breadcrumb("style", "action", "size");

        Editable edit = etBody.getText();
        RelativeSizeSpan[] spans = edit.getSpans(start, end, RelativeSizeSpan.class);
        for (RelativeSizeSpan span : spans) {
            int s = edit.getSpanStart(span);
            int e = edit.getSpanEnd(span);
            int f = edit.getSpanFlags(span);
            edit.removeSpan(span);
            splitSpan(edit, start, end, s, e, f, false,
                    new RelativeSizeSpan(span.getSizeChange()),
                    new RelativeSizeSpan(span.getSizeChange()));
        }

        if (size != null)
            edit.setSpan(new RelativeSizeSpan(size), start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

        etBody.setText(edit);
        etBody.setSelection(select ? start : end, end);

        return true;
    }

    static boolean selectBackground(EditText etBody, int start, int end, boolean select) {
        Log.breadcrumb("style", "action", "selectBackground");