java - android splitting with space 不适用于这种情况。为什么？

Question

我需要突出显示并使文本中的 url 可动态点击。

为此，我使用以下方法

private SpannableString addClickablePart(String string) {


        string = string.replaceAll("\\n"," \n ");

        string += " ";
        SpannableString ss = new SpannableString(string);
        String[] words = string.split(" ");
        for (final String word : words) {


            if (CommonUtilities.isValidURL(word)) {


                int lastIndex = 0;

                while(lastIndex != -1){

                    lastIndex = string.indexOf(word+" ",lastIndex);

                    if(lastIndex != -1){
                        ClickableSpan clickableSpan = new ClickableSpan() {
                            @Override
                            public void onClick(View textView) {
                                //use word here to make a decision

                                isRefreshingNecessary = false;

                                Intent mIntent = new Intent(ctx, UserWebsiteActivity.class);
                                mIntent.putExtra("website", word);
                                startActivity(mIntent);
                            }
                        };

                        ss.setSpan(clickableSpan, lastIndex, lastIndex + word.length(),
                                Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

                        lastIndex += word.length();
                    }
                }


            }
        }

        return ss;
    }

它适用于大多数情况。但是，并非适用于所有情况，如下例所示。

The pricing information provided to you in your plan terms and conditions about these number ranges will no longer apply and will be replaced by this charging structure. See www.ee.co.uk/ukcalling for further information.

对于上述情况，当我使用

拆分整个字符串时

 String[] words = string.split(" ");

或

 String[] words = string.split("\\s+");

我得到了 See www.ee.co.uk/ukcalling for 作为一个词。相反，我需要这 3 个 - See、www.ee.co.uk/ukcalling 和 for 作为 3 个不同的词，而不是组合成一个词。

我无法理解空间 split 的方式有什么问题。请帮助我知道。

Answer 1

替换所有不可见的空白字符。

 string = string.replaceAll("\\t", " ");
 string = string.replaceAll("\\xA0", " ");
 string = string.replaceAll("\\u1680", " ");
 string = string.replaceAll("\\u180e", " ");
 string = string.replaceAll("\\u2000", " ");
 string = string.replaceAll("\\u200a", " ");
 string = string.replaceAll("\\u202f", " ");
 string = string.replaceAll("\\u205f", " ");
 string = string.replaceAll("\\u3000", " ");

Java 8

string = string.replaceAll("(^\\h*)|(\\h*$)","");

检查这个how-to-trim-no-break-space-in-java