我有一个列表视图,其中显示了有关所有正在使用此自定义比较器类对客户端名称进行排序的所有客户端的信息。除了英文字母,我正在使用setStrength(Collator.SECONDARY)进行管理,除了英文字母外,他们还有一些额外的提示
public class CustomNameComparator implements Comparator<ClientInfo> {
@Override
public int compare(ClientInfo o1, ClientInfo o2) {
Locale locale=Locale.getDefault();
Collator collator = Collator.getInstance(locale);
collator.setStrength(Collator.SECONDARY);
return collator.compare(o1.title, o2.title);
}
}
PRIMARY strength: Typically, this is used to denote differences between base characters (for example, "a" < "b"). It is the strongest difference. For example, dictionaries are divided into different sections by base character.
SECONDARY strength: Accents in the characters are considered secondary differences (for example, "as" < "às" < "at"). Other differences between letters can also be considered secondary differences, depending on the language. A secondary difference is ignored when there is a primary difference anywhere in the strings.
TERTIARY strength: Upper and lower case differences in characters are distinguished at tertiary strength (for example, "ao" < "Ao" < "aò"). In addition, a variant of a letter differs from the base form on the tertiary strength (such as "A" and "Ⓐ"). Another example is the difference between large and small Kana. A tertiary difference is ignored when there is a primary or secondary difference anywhere in the strings.
IDENTICAL strength: When all other strengths are equal, the IDENTICAL strength is used as a tiebreaker. The Unicode code point values of the NFD form of each string are compared, just in case there is no difference. For example, Hebrew cantellation marks are only distinguished at this strength. This strength should be used sparingly, as only code point value differences between two strings are an extremely rare occurrence. Using this strength substantially decreases the performance for both comparison and collation key generation APIs. This strength also increases the size of the collation key.
**Here is a another way to make a rule base sorting if u need it just sharing**
/* String rules="< å,Å< ä,Ä< a,A< b,B< c,C< d,D< é< e,E< f,F< g,G< h,H< ï< i,I"+"< j,J< k,K< l,L< m,M< n,N< ö,Ö< o,O< p,P< q,Q< r,R"+"< s,S< t,T< ü< u,U< v,V< w,W< x,X< y,Y< z,Z";
RuleBasedCollator rbc = null;
try {
rbc = new RuleBasedCollator(rules);
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
String myTitles[]={o1.title,o2.title};
Collections.sort(Arrays.asList(myTitles), rbc);*/