android - 在可扩展列表视图子项中突出显示搜索/过滤的文本

Question

对于我的大学项目，我正在使用这个示例代码 example，项目成功运行，现在我想突出显示搜索到的文本，但我不知道如何实现它，一些跨字符串示例尝试但确实不支持所以请任何人帮助我（如image）

Answer 1

要突出显示搜索词，请尝试以下代码：

        String m_filterVal = m_searchTerm;//Your search term suppose "p"
        String m_originalItemValue = ... //Your original whole string suppose "paint";

            int m_startPos = m_originalItemValue.toLowerCase(Locale.US).indexOf(m_filterVal.toLowerCase(Locale.US));
            int m_endPos = m_startPos + m_filterVal.length();
            if (m_startPos != -1) // This should always be true, just a sanity check
            {
                Spannable m_spannable = new SpannableString(m_originalItemValue);
                ColorStateList m_blueColor = new ColorStateList(new int[][] { new int[] {} }, new int[] { Color.BLUE });
                TextAppearanceSpan m_highlightSpan = new TextAppearanceSpan(null, Typeface.BOLD, -1, m_blueColor, null);
                m_spannable.setSpan(m_highlightSpan, m_startPos, m_endPos, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
                m_tvCategoryItem.setText(m_spannable);//your textview name
            }
            else
            {
                m_tvCategoryItem.setText(m_originalItemValue);
            }