岗顶做网站公司,学校网站首页模板,wordpress安装到网站吗,直播软件开发需要多少钱国庆回了趟家#xff0c;昨天真不想走#xff0c;离家近的感觉太好。唉#xff0c;不扯这些#xff0c;说说今天的正事吧。上篇博客中介绍了自定义AutoCompleteTextView #xff0c;但是用到了一个很蹩脚的技术#xff0c;就是我们事先把每个汉字的拼音当作一个字段输入进…国庆回了趟家昨天真不想走离家近的感觉太好。唉不扯这些说说今天的正事吧。上篇博客中介绍了自定义AutoCompleteTextView 但是用到了一个很蹩脚的技术就是我们事先把每个汉字的拼音当作一个字段输入进去了在实际的开发中肯定不会这样做我们要通过代码自动生成汉字的拼音就像我们的手机通讯录比如我们要查找“张三”这个人我们只需要输入“zs”、“cs”或者“zhangsan”、“changsan”就能搜索到该人那么我们该怎么来实现这样的功能呢本文所述案例是在上篇博客的基础上实现的如果还没阅读上篇博客请看android开发之自定义AutoCompleteTextView。本文要实现的整体效果如下图所示在上篇博客中我们自定义了AutoCompleteTextView的Adapter本文中我们继续对这个Adapter进行深化改造。主要改造两个地方第一个地方是在构造方法中初始化拼音集合改造后的构造方法public MyActAdapter(Context context, List books, int maxMatch) {this.books books;this.context context;this.maxMatch maxMatch;initPinYinList();}这个方法主要是初始化两个List集合一个是pinYinList 另一个是pinYinAllList 前者是所有书的作者姓名拼音的首字母集合后者是所有书的作者姓名拼音全拼集合。private void initPinYinList() {pinYinList new ArrayList();pinYinAllList new ArrayList();PinYin4j pinyin new PinYin4j();for (int i 0; i books.size(); i) {pinYinList.add(pinyin.getPinyin(books.get(i).getAuthor().toString()));pinYinAllList.add(pinyin.getAllPinyin(books.get(i).getAuthor().toString()));}}这里还涉及到两个类如下PinYin4j.javapackage com.example.myact;import java.util.Arrays;import java.util.HashSet;import java.util.Set;public class PinYin4j {public PinYin4j(){}/** * 字符串集合转换字符串(逗号分隔) * *author wangsong *param stringSet *return */public String makeStringByStringSet(Set stringSet) {StringBuilder str new StringBuilder();int i 0;for (String s : stringSet) {if (i stringSet.size() - 1) {str.append(s);} else {str.append(s ,);}i;}return str.toString().toLowerCase();}/** * 获取汉字拼音全拼 * *author wangsong *param src *return Set */public Set getAllPinyin(String src) {char[] srcChar;srcChar src.toCharArray();String[][] temp new String[src.length()][];for (int i 0; i srcChar.length; i) {char c srcChar[i];if (String.valueOf(c).matches([\\u4E00-\\u9FA5])) {String[] t PinyinHelper.getUnformattedHanyuPinyinStringArray(c);temp[i] new String[t.length];for(int j0;jtemp[i][j]t[j].replaceAll(\\d, );//获取全拼}} else if (((int) c 65 (int) c 90)|| ((int) c 97 (int) c 122)||c48c57||c42) {temp[i] new String[] { String.valueOf(srcChar[i]) };} else {temp[i] new String[] {null!};}}String[] pingyinArray paiLie(temp);return array2Set(pingyinArray);}/** * 获取汉字拼音首字母集合 * *author wangsong *param src *return Set */public Set getPinyin(String src) {char[] srcChar;srcChar src.toCharArray();String[][] temp new String[src.length()][];for (int i 0; i srcChar.length; i) {char c srcChar[i];if (String.valueOf(c).matches([\\u4E00-\\u9FA5])) {String[] t PinyinHelper.getUnformattedHanyuPinyinStringArray(c);temp[i] new String[t.length];for(int j0;jtemp[i][j]t[j].substring(0,1);}} else if (((int) c 65 (int) c 90)|| ((int) c 97 (int) c 122)||c48c57||c42) {temp[i] new String[] { String.valueOf(srcChar[i]) };} else {temp[i] new String[] {null!};}}String[] pingyinArray paiLie(temp);return array2Set(pingyinArray);}/* * 求2维数组所有排列组合情况 * 比如:{{1,2},{3},{4},{5,6}}共有2中排列,为:1345,1346,2345,2346 */private String[] paiLie(String[][] str){int max1;for(int i0;imax*str[i].length;}String[] resultnew String[max];for(int i 0; i max; i){String s ;int temp 1; //注意这个temp的用法。for(int j 0; j str.length; j){temp * str[j].length;s str[j][i / (max / temp) % str[j].length];}result[i]s;}return result;}/** * 去掉重复项 *param tArray *return */public static Set array2Set(T[] tArray) {Set tSet new HashSet(Arrays.asList(tArray));// TODO 没有一步到位的方法根据具体的作用选择合适的Set的子类来转换。return tSet;}}PinyinHelper.javapackage com.example.myact;import java.io.BufferedInputStream;import java.io.FileNotFoundException;import java.io.IOException;import java.util.Properties;public class PinyinHelper {private static PinyinHelper instance;private Properties properties null;public static String[] getUnformattedHanyuPinyinStringArray(char ch) {return getInstance().getHanyuPinyinStringArray(ch);}private PinyinHelper() {initResource();}public static PinyinHelper getInstance() {if (instance null) {instance new PinyinHelper();}return instance;}private void initResource() {try {final String resourceName /assets/unicode_to_hanyu_pinyin.txt;// final String resourceName /assets/unicode_py.ini;properties new Properties();properties.load(getResourceInputStream(resourceName));} catch (FileNotFoundException ex) {ex.printStackTrace();} catch (IOException ex) {ex.printStackTrace();}}private BufferedInputStream getResourceInputStream(String resourceName) {return new BufferedInputStream(PinyinHelper.class.getResourceAsStream(resourceName));}private String[] getHanyuPinyinStringArray(char ch) {String pinyinRecord getHanyuPinyinRecordFromChar(ch);if (null ! pinyinRecord) {int indexOfLeftBracket pinyinRecord.indexOf(Field.LEFT_BRACKET);int indexOfRightBracket pinyinRecord.lastIndexOf(Field.RIGHT_BRACKET);String stripedString pinyinRecord.substring(indexOfLeftBracket Field.LEFT_BRACKET.length(), indexOfRightBracket);return stripedString.split(Field.COMMA);} elsereturn null;}private String getHanyuPinyinRecordFromChar(char ch) {int codePointOfChar ch;String codepointHexStr Integer.toHexString(codePointOfChar).toUpperCase();String foundRecord properties.getProperty(codepointHexStr);return foundRecord;}class Field {static final String LEFT_BRACKET (;static final String RIGHT_BRACKET );static final String COMMA ,;}public static String[] toHanyuPinyinStringArray(char ch) {return getUnformattedHanyuPinyinStringArray(ch);}}这里是初始化拼音集合。第二个改造的地方就是在过滤器中增加过滤的条件。这是最新的过滤器和上文相比这里只是增加了一个else分支在else分支中判断搜索条件是否符合要求。private class ArrayFilter extends Filter {Overrideprotected FilterResults performFiltering(CharSequence constraint) {FilterResults results new FilterResults();if (mFilterBooks null) {mFilterBooks new ArrayList(books);}// 如果没有过滤条件则不过滤if (constraint null || constraint.length() 0) {results.values mFilterBooks;results.count mFilterBooks.size();} else {List retList new ArrayList();// 过滤条件String str constraint.toString().toLowerCase();Book book;// 循环变量数据源如果有属性满足过滤条件则添加到result中for (int i 0; i mFilterBooks.size(); i) {book mFilterBooks.get(i);if (book.getAuthor().contains(str)|| book.getName().contains(str)|| (book.getId() ).contains(str)|| (book.getPrice() ).contains(str)|| book.getPinyin().contains(str)) {retList.add(book);} else {//查看作者姓名拼音首字母是否符合过滤条件Set pinyinSet pinYinList.get(i);Iterator pinyin pinyinSet.iterator();while (pinyin.hasNext()) {if (pinyin.next().toString().contains(str)) {retList.add(book);break;}}//查看作者姓名拼音全拼是否符合过滤条件Set pinyinAllSet pinYinAllList.get(i);Iterator pinyinAll pinyinAllSet.iterator();while (pinyinAll.hasNext()) {if (pinyinAll.next().toString().contains(str)) {retList.add(book);break;}}}// if (maxMatch 0) {// if (retList.size() maxMatch - 1) {// break;// }// }}results.values retList;results.count retList.size();}return results;}// 在这里返回过滤结果Overrideprotected void publishResults(CharSequence constraint,FilterResults results) {// notifyDataSetInvalidated()会重绘控件(还原到初始状态)// notifyDataSetChanged()重绘当前可见区域books (List) results.values;if (results.count 0) {notifyDataSetChanged();} else {notifyDataSetInvalidated();}}}其实还是很简单的有问题欢迎留言讨论。
