根據拼音排序
阿新 • • 發佈:2019-01-06
需求:將一組資料按某一欄位中文拼音排序
PinyinComparator comparator = new PinyinComparator();
Collections.sort(strList, comparator);
其中strList中放置了資料,可以是任何物件,但要對PinyinComparator中的compare進行對應的修改,我Demo中為String[]
2、PinyinComparator排序類
public class PinyinComparator implements Comparator<Object> {
/**
* 比較兩個字串
*/
public int compare(Object o1, Object o2) {
String[] name1 = (String[]) o1;
String[] name2 = (String[]) o2;
String str1 = getPingYin(name1[0]);
String str2 = getPingYin(name2[0]);
int flag = str1.compareTo(str2);
return flag;
}
/**
* 將字串中的中文轉化為拼音,其他字元不變
*
* @param inputString
* @return
*/
public 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();// 把字串轉化成字元陣列
String output = "";
try {
for (int i = 0; i < input.length; i++) {
// \\u4E00是unicode編碼,判斷是不是中文
if (java.lang.Character.toString(input[i]).matches(
"[\\u4E00-\\u9FA5]+")) {
// 將漢語拼音的全拼存到temp陣列
String[] temp = PinyinHelper.toHanyuPinyinStringArray(
input[i], format);
// 取拼音的第一個讀音
output += temp[0];
}
// 大寫字母轉化成小寫字母
else if (input[i] > 'A' && input[i] < 'Z') {
output += java.lang.Character.toString(input[i]);
output = output.toLowerCase();
}
output += java.lang.Character.toString(input[i]);
}
} catch (Exception e) {
Log.e("Exception", e.toString());
}
return output;
}
}
後來根據我們專案的實際情況
public static class PinyinComparator implements Comparator<Map<?, ?>>{
private String mSortingKey;
public PinyinComparator(String sortingKey) {
mSortingKey = sortingKey;
}
public void setSortingKey(String sortingKey) {
mSortingKey = sortingKey;
}
public int compare(Map<?, ?> map1, Map<?, ?> map2){
Object o1 = map1.get(mSortingKey);
Object o2 = map2.get(mSortingKey);
String name1 = (String) o1;
String name2 = (String) o2;
String str1 = getPinYin(name1);
String str2 = getPinYin(name2);
int flag = str1.compareTo(str2);
return flag;
}
}
在Android.mk檔案中這樣改
...
LOCAL_STATIC_JAVA_LIBRARIES := pinyin4j666 \
android-support-v4 android-support-v13 jsr305 \
com.mediatek.lbs.em2.utils \
com.mediatek.settings.ext
...
include $(CLEAR_VARS)
LOCAL_PREBUILT_STATIC_JAVA_LIBRARIES := pinyin4j666:libs/pinyin4j-2.5.0.jar
include $(BUILD_MULTI_PREBUILT)