先上个图, 只实现了排序 以及加分割线, 那个提示,以及右边一个竖条字母定位没实现。 代码是借鉴别人的弄出来的
需要架包pinyin4j-2.5.0.jar
bug,是多音字没处理~
PingYinUtil.java 获取拼音
public class PingYinUtil { /** * * @param inputString * @return */ public static String getPingYin(String inputString) { HanyuPinyinOutputFormat format = new HanyuPinyinOutputFormat(); format.setCaseType(HanyuPinyinCaseType.LOWERCASE); format.setToneType(HanyuPinyinToneType.WITHOUT_TONE); format.setVCharType(HanyuPinyinVCharType.WITH_V); char[] input = inputString.trim().toCharArray(); String output = ""; try { for (int i = 0; i < input.length; i++) { if (java.lang.Character.toString(input[i]). matches("[\\u4E00-\\u9FA5]+")) { String[] temp = PinyinHelper. toHanyuPinyinStringArray(input[i], format); output += temp[0]; } else output += java.lang.Character.toString( input[i]); } } catch (BadHanyuPinyinOutputFormatCombination e) { e.printStackTrace(); } return output; } }
/** * 只是判断了为""的时候,放到最前面, * 假如需要判断 符号,半角 全角,可以用正则表达式 * * @author zeng * * * 正则表达式 如下: * 只能输入由26个英文字母组成的字符串:"^[A-Za-z]+$"。 * 只能输入由26个大写英文字母组成的字符串:"^[A-Z]+$"。 * 只能输入由26个小写英文字母组成的字符串:"^[a-z]+$"。 * !!!-> 结束符号 $ 开始符号 ^ */ public class PinyinComparator implements Comparator<TestSortItem> { @Override public int compare(TestSortItem o1, TestSortItem o2) { // TODO Auto-generated method stub String py1 = o1.getPinyin(); String py2 = o2.getPinyin(); // 判断是否为空"" if (isEmpty(py1) && isEmpty(py2)) return 0; if (isEmpty(py1)) return -1; if (isEmpty(py2)) return 1; String str1 = ""; String str2 = ""; try { str1 = ((o1.getPinyin()).toUpperCase()).substring(0, 1); str2 = ((o2.getPinyin()).toUpperCase()).substring(0, 1); } catch (Exception e) { // TODO: handle exception System.out.println("某个str为\" \" 空"); } return str1.compareTo(str2); } private boolean isEmpty(String str) { return "".equals(str.trim()); } }
obj
public class TestSortItem { private String name; private Object other = "test"; private String pinyin;
public class ContactAdapter extends MyBaseAdapter<TestSortItem> { public ContactAdapter(Context context, List<TestSortItem> list) { super(context, list); } @Override public View getView(int position, View convertView, ViewGroup parent) { // TODO Auto-generated method stub ViewHolder vh = null; if (convertView == null) { vh = new ViewHolder(); convertView = inflater.inflate(R.layout.friendlist_item_semis, null); vh.firstCharHint = (TextView) convertView.findViewById(R.id.text_first_char_hint); vh.name = (TextView) convertView.findViewById(R.id.name); vh.sign = (TextView) convertView.findViewById(R.id.sign); convertView.setTag(vh); } else { vh = (ViewHolder) convertView.getTag(); } TestSortItem item = data.get(position); char previewChar = ' '; char currentChar = ' '; try { int idx = position - 1; previewChar = (idx >= 0 ? data.get(idx).getPinyin().charAt(0) : ' '); currentChar = item.getPinyin().charAt(0); } catch (Exception e) { // TODO: handle exception System.out.println(" 防止某个为\"\" 空,报错"); } if (currentChar != previewChar) { if (isLetter(item.getPinyin())) { vh.firstCharHint.setVisibility(View.VISIBLE); vh.firstCharHint.setText(String.valueOf(currentChar)); } else { vh.firstCharHint.setVisibility(View.GONE); } } else { // 实例化一个CurrentView后,会被多次赋值并且只有最后一次赋值的position是正确 vh.firstCharHint.setVisibility(View.GONE); } vh.name.setText(item.getName()); vh.sign.setText(item.getOther().toString()); return convertView; } private class ViewHolder { private TextView name; private TextView sign; private TextView firstCharHint; } // private boolean isNum(char c) { // if (java.lang.Character.isDigit(c)) { // return true; // } // return false; // } // // private static boolean isLetter1111(String str) { // java.util.regex.Pattern pattern = java.util.regex.Pattern.compile("[a-zA-Z]+"); // java.util.regex.Matcher m = pattern.matcher(str); // return m.matches(); // } /** * 仅判断首字母 * * @param str * @return */ private static boolean isLetter(String str) { java.util.regex.Pattern pattern = java.util.regex.Pattern.compile("^[a-zA-Z]+"); java.util.regex.Matcher m = pattern.matcher(str); return m.matches(); } }
MyBaseAdapter<T> 这个只是我为了 少写那几个经常重复重写的方法,getCount()...等。
public abstract class MyBaseAdapter<T> extends BaseAdapter { protected List<T> data; protected Context mContext; protected LayoutInflater inflater; public MyBaseAdapter(Context context, List<T> list) { // TODO Auto-generated constructor stub this.mContext = context; this.data = list; inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); } public void refreshList(List<T> list) { // for(int i = 0; i<list.size(); i++){ // data.add(list.get(i)); // } this.data = list; notifyDataSetChanged(); }
activity
originalData = new ArrayList<TestSortItem>(); initTestData(); for (TestSortItem item : originalData) { item.setPinyin(PingYinUtil.getPingYin(item.getName().toString())); System.out.println("拼音 => " + item.getPinyin()); } Collections.sort(originalData, new PinyinComparator()); // 排序完后,看排序的list, for (TestSortItem item : originalData) System.out.println("排序==> " + item.getName().toString()); // adapter = new ContactAdapter(this, originalData); mListView.setAdapter(adapter);