html在android中轉換為粗體或斜體的字符串

Question

我的自定義EditText中有使文本變為粗體或斜體的方法

這是我的方法：

public boolean changeTextStyle(TextStyle style) {
    if (isTextSelected()) {
        int startSelection = getSelectionStart();
        int endSelection = getSelectionEnd();
        SpannableString span = new SpannableString(getText().subSequence(startSelection, endSelection));
        span.setSpan(new StyleSpan(Typeface.NORMAL), 0, span.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
        span.setSpan(new CustomTypefaceSpan(getTypeface()), 0, span.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
        switch (style) {
            case BOLD_STYLE: {
                span.setSpan(new StyleSpan(Typeface.BOLD), 0, span.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
            }
            break;
            case ITALIC_STYLE: {
                span.setSpan(new StyleSpan(Typeface.ITALIC), 0, span.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
            }
            break;
        }
        getText().replace(startSelection, endSelection, span);
        setSelection(endSelection);
        return true;
    } else {
        return false;
    }
}

當我將粗體文本樣式切換為斜體樣式或逆序時，一切都很好，並且在EditText中，它從粗體變為斜體，但是當我想將該文本轉換為html時，問題就來了，並返回了一個包含兩個html標簽的html粗體斜體文本但我只想在粗體或斜體之間切換。

這是我轉換為html方法：

public String getFinalText() {
    return StringEscapeUtils.unescapeHtml4(Html.toHtml(getText())
            .replace("<p dir=\"ltr\">", "")
            .replace("<p dir=\"rtl\">", "")
            .replace("<u>", "")
            .replace("</u>", "")
            .replace("<p>", "")
            .replace("</p>", ""))
            .trim();
}

在短期內

我要這個：

This is <b>simple</b> text

要么

This is <i>simple</i> text

但是輸出是這樣的：

This is <b><i>simple</i></b> text

Answer 1

嘗試改變這些行

SpannableString span = new SpannableString(getText().subSequence(startSelection, endSelection));
        span.setSpan(new StyleSpan(Typeface.NORMAL), 0, span.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

至

SpannableString span = new SpannableString(getText().subSequence(startSelection, endSelection));
final StyleSpan[] spans = span.getSpans(0, span.length(), StyleSpan.class);
for (StyleSpan styleSpan : spans) span.removeSpan(styleSpan);