[每日分享]评论 人和被评论人加颜色实现

另外一种姿势html就不说了

image.png

实现代码

    @BindingAdapter({"childcomment"})
    public static void scores(TextView textView, ReplyCommentYoungModel model) {
        if (model == null) {

            textView.setText("");
            return;
        }
        String childName = TextUtils.isEmpty(model.getNickname()) ? "陌生人" : model.getNickname();
        ;//可能被用户模拟 不存在的一个从前面找一个从后面找。来吧内容里面又？
        String parentName = TextUtils.isEmpty(model.getFather_nickname()) ? "匿名的朋友" : model.getFather_nickname();
        String content = "" + model.getContent();
        String replyContent = "回复";
        String value = String.format("%s%s%s:%s", childName, replyContent, parentName, content);
//        String value = String.format("%s回复%s:%s", childName, parentName, content);

/*
        String str = value.replace(childName, model.getNickname());//避免重名导致重复问题
        str = str.replace(parentName, model.getFather_nickname()+"");*/
        int positionChildName = value.indexOf(childName);
        int positionParentName = value.indexOf(parentName, positionChildName == -1 ? 0 : positionChildName + childName.length());
        SpannableStringBuilder spannableStringBuilder = new SpannableStringBuilder(value);
        ForegroundColorSpan themeColorSpan = new ForegroundColorSpan(AppContext.getInstance().getResources().getColor(R.color.colorPinkJin));
        if (positionChildName != -1) {
            spannableStringBuilder.setSpan(themeColorSpan, positionChildName, positionChildName + childName.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
        }//https://www.jianshu.com/p/f004300c6920


        if (positionParentName != -1) {
            spannableStringBuilder.setSpan(themeColorSpan, positionParentName, positionParentName + parentName.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
        }
        //第二个只能插入 否则只会全部生效Spannable的任何修改无任何作用，这这个规则只针对 insert而且是连续的。

//     spannableStringBuilder.insert(positionChildName+childName.length() + replyContent.length(), parentName);//插入又没颜色
        textView.setText(spannableStringBuilder);


    }

切忌别把文本框颜色也弄成粉色，我特么就犯傻了。 请问上面代码有什么问题???

正确代码如下：

   @BindingAdapter({"childcomment"})
    public static void scores(TextView textView, ReplyCommentYoungModel model) {
        if (model == null) {

            textView.setText("");
            return;
        }
        String childName = TextUtils.isEmpty(model.getNickname()) ? "陌生人" : model.getNickname();
        ;//可能被用户模拟 不存在的一个从前面找一个从后面找。来吧内容里面又？
        String parentName = TextUtils.isEmpty(model.getFather_nickname()) ? "匿名的朋友" : model.getFather_nickname();
        String content = "" + model.getContent();
        String replyContent = "回复";
        String value = String.format("%s%s%s:%s", childName, replyContent, parentName, content);
//        String value = String.format("%s回复%s:%s", childName, parentName, content);

/*
        String str = value.replace(childName, model.getNickname());//避免重名导致重复问题
        str = str.replace(parentName, model.getFather_nickname()+"");*/
        int positionChildName = value.indexOf(childName);
        int positionParentName = value.indexOf(parentName, positionChildName == -1 ? 0 : positionChildName + childName.length());
        SpannableStringBuilder spannableStringBuilder = new SpannableStringBuilder(value);
        if (positionChildName != -1) {
        ForegroundColorSpan themeColorSpan = new ForegroundColorSpan(AppContext.getInstance().getResources().getColor(R.color.colorPinkJin));
            spannableStringBuilder.setSpan(themeColorSpan, positionChildName, positionChildName + childName.length(), Spannable.SPAN_MARK_MARK);
//            spannableStringBuilder.setSpan(themeColorSpan, positionChildName, positionChildName + childName.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
        }//https://www.jianshu.com/p/f004300c6920


        if (positionParentName != -1) {
            ForegroundColorSpan themeColorSpan = new ForegroundColorSpan(AppContext.getInstance().getResources().getColor(R.color.colorPinkJin));
          spannableStringBuilder.setSpan(themeColorSpan, positionParentName, positionParentName + parentName.length(), Spannable.SPAN_MARK_MARK);
        }
        //第二个只能插入 否则只会全部生效Spannable的任何修改无任何作用，这这个规则只针对 insert
//     spannableStringBuilder.insert(positionChildName+childName.length() + replyContent.length(), parentName);//插入又没颜色
        textView.setText(spannableStringBuilder);


    }

附上一个万能的高亮颜色工具

    /**
     *   关键字高亮显示
     *
     *   @param text 文字
     *
     *   @param keyword1 文字中的关键字数组
     *
     *   @return
     *
     */
    public static SpannableStringBuilder matcherSearchContent(String text, String[] keyword1) {
        String[] keyword = new String[keyword1.length];
        System.arraycopy(keyword1, 0, keyword, 0, keyword1.length);
        SpannableStringBuilder spannable = new SpannableStringBuilder(text);

        CharacterStyle span;
        String wordReg;
        for (int i = 0; i < keyword.length; i++) {
            String key = "";
            //  处理通配符问题
            if (keyword[i].contains("*") || keyword[i].contains("(") || keyword[i].contains(")")) {
                char[] chars = keyword[i].toCharArray();
                for (int k = 0; k < chars.length; k++) {
                    if (chars[k] == '*' || chars[k] == '(' || chars[k] == ')') {
                        key = key + "\\" + String.valueOf(chars[k]);
                    } else {
                        key = key + String.valueOf(chars[k]);
                    }
                }
                keyword[i] = key;
            }

            wordReg = "(?i)" + keyword[i];   //忽略字母大小写
            Pattern pattern = Pattern.compile(wordReg);
            Matcher matcher = pattern.matcher(text);
            while (matcher.find()) {
                span = new ForegroundColorSpan(Color.parseColor("#ff5656"));
                spannable.setSpan(span, matcher.start(), matcher.end(), Spannable.SPAN_MARK_MARK);
            }
        }

        return spannable;
    }

精品推荐
https://www.jianshu.com/p/1956e15c9a27
https://www.jianshu.com/p/f004300c6920