Android 开发 实现文本搜索功能

核心逻辑方法:

/**
     * 搜索item
     * @param searchContent 需要搜索的文本内容
     */
    public void searchItem(String searchContent){
        this.mSearchContent = searchContent.trim();//去除空格
        if(TextUtils.isEmpty(mSearchContent)||mSearchContent.length()==0){//如果搜索内容是空的就显示全部内容
            this.mShowList.clear();
            mShowList.addAll(mAllDataList);
            notifyDataSetChanged();
            return;
        }
        List<THealthDataListBase.StudentData> tempList = new ArrayList<>();//用于临时保存匹配完成的数据
        THealthDataListBase.StudentData tempStudentData = null;//用于临时保存匹配完成的item数据
        char[] searchContentCharArray = searchContent.toCharArray();
        for (THealthDataListBase.StudentData studentData : mAllDataList){ //遍历全部学生名称
            char[] studentNameCharArray = studentData.name.trim().toCharArray();//学生名称去除空格,并且转成数组
            int count = 0;
            for (int i=0;i<searchContentCharArray.length;i++){ //遍历搜索文字
                for (char word :studentNameCharArray){ //遍历学生名称文字
                    if (word == searchContentCharArray[i]){ //判断一致的文字
                        count++;
                    }
                }
 
            }
            if (count == 0){ //如果匹配度是0就不添加
                continue;
            }
            tempStudentData = new THealthDataListBase().new StudentData();
            tempStudentData.name = studentData.name;
            tempStudentData.studentId = studentData.studentId;
            tempStudentData.morning = studentData.morning;
            tempStudentData.noon = studentData.noon;
            tempStudentData.setCount(count);
            tempList.add(tempStudentData);
 
        }
        if (tempList.isEmpty() && !mSearchContent.isEmpty()){
            mShowList.clear();
            notifyDataSetChanged();
            return;
 
        }
        Collections.sort(tempList);//排序
        mShowList.clear();
        mShowList.addAll(tempList);
        notifyDataSetChanged();
 
    }