在android中实现一个通过T9搜索联系人的功能。
使用的库： https://github.com/YiiGuxing/T9Search
引用：
compile 'cn.tinkling.t9:t9search:1.1.0'
生成匹配串：
String t9Key = T9Utils.buildT9Key("重新称重", new PinyinProvider() {
@Override
public String[] getPinyin(char input) {
// 在这里生成拼音，如果需要支持多音字匹配，返回多个拼音就行了。
// 由于多音字的拼音可能只是声调不同，去除声调后是一样的(如：“啊”字)，所以建议做一下去重复操作。
return new String[]{/*拼音...*/};
}
});
// 匹配串用于搜索匹配
搜索匹配：
String t9Key; // 上面生成的匹配串
String constraint; // 输入的搜索键
// 开始匹配并返回匹配信息
T9MatchInfo matchInfo = T9Matcher.matches(t9Key, constraint);
// ...
以上便是基本的用法。
一个简单封装的工具类：（通过 pinyin4j 库实现汉字转拼音）
- T9SearchSupport.java
import android.support.annotation.NonNull;
import android.support.v4.util.Pools;
import android.text.Spannable;
import android.text.SpannableStringBuilder;
import android.text.TextUtils;
import android.text.style.ForegroundColorSpan;
import net.sourceforge.pinyin4j.PinyinHelper;
import net.sourceforge.pinyin4j.format.HanyuPinyinCaseType;
import net.sourceforge.pinyin4j.format.HanyuPinyinOutputFormat;
import net.sourceforge.pinyin4j.format.HanyuPinyinToneType;
import net.sourceforge.pinyin4j.format.HanyuPinyinVCharType;
import net.sourceforge.pinyin4j.format.exception.BadHanyuPinyinOutputFormatCombination;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import cn.tinkling.t9.PinyinProvider;
import cn.tinkling.t9.T9MatchInfo;
import cn.tinkling.t9.T9Matcher;
import cn.tinkling.t9.T9Utils;
public final class T9SearchSupport {
private static final PinyinProvider PINYIN_PROVIDER;
private static final HanyuPinyinOutputFormat FORMAT;
private static final Pools.SynchronizedPool<Set<String>> SET_POOL;
static {
FORMAT = new HanyuPinyinOutputFormat();
FORMAT.setCaseType(HanyuPinyinCaseType.UPPERCASE);
FORMAT.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
FORMAT.setVCharType(HanyuPinyinVCharType.WITH_V);
SET_POOL = new Pools.SynchronizedPool<>(4);
PINYIN_PROVIDER = new PinyinProvider() {
@Override
public String[] getPinyin(char input) {
Set<String> set = SET_POOL.acquire();
if (set == null) {
set = new HashSet<>();
}
try {
String[] pys = PinyinHelper.toHanyuPinyinStringArray(input, FORMAT);
if (pys == null)
return null;
// 去除重复
set.addAll(Arrays.asList(pys));
return set.toArray(new String[set.size()]);
} catch (BadHanyuPinyinOutputFormatCombination e) {
e.printStackTrace();
} finally {
set.clear();
SET_POOL.release(set);
}
return null;
}
};
}
private T9SearchSupport() {
}
/**
* 生成T9键
*
* @param input 输入
* @return T9键
*/
@NonNull
public static String buildT9Key(String input) {
return T9Utils.buildT9Key(input, PINYIN_PROVIDER);
}
/**
* 过虑
*/
public static List<Contact> filter(List<Contact> contacts, String key) {
ArrayList<Contact> filtered = new ArrayList<>();
if (contacts != null && contacts.size() > 0) {
for (Contact contact : contacts) {
T9MatchInfo nameMatch = T9Matcher.matches(contact.t9Key, key);
T9MatchInfo numberMatch = T9Matcher.matchesNumber(contact.phoneNumber, key);
if (nameMatch.found() || numberMatch.found()) {
Contact c = new Contact(contact);
c.nameMatchInfo = nameMatch;
c.phoneNumberMatchInfo = numberMatch;
filtered.add(c);
}
}
Collections.sort(filtered, COMPARATOR);
}
return filtered;
}
/**
* 高亮文本
*/
public static SpannableStringBuilder highLight(SpannableStringBuilder buffer,
T9MatchInfo matchInfo,
String text,
int color) {
buffer.clear();
if (!TextUtils.isEmpty(text)) {
buffer.append(text);
final int maxLength = text.length();
while (matchInfo != null) {
int start = matchInfo.start();
int end = start + matchInfo.length();
if ((matchInfo.found() && start < maxLength && end <= maxLength)) {
buffer.setSpan(new ForegroundColorSpan(color), start, end,
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
matchInfo = matchInfo.next();
}
}
return buffer;
}
private static final Comparator<Contact> COMPARATOR = new Comparator<Contact>() {
@Override
public int compare(Contact left, Contact right) {
T9MatchInfo leftNameMatch = left.nameMatchInfo;
T9MatchInfo rightNameMatch = right.nameMatchInfo;
if (leftNameMatch.found()) {
if (rightNameMatch.found()) {
int lStart = leftNameMatch.start();
int rStart = rightNameMatch.start();
if (lStart < rStart) {
return -1;
} else if (lStart > rStart) {
return 1;
}
int lLen = getMatchLength(leftNameMatch);
int rLen = getMatchLength(rightNameMatch);
int temp = left.name.length() - lLen - (right.name.length() - rLen);
if (temp != 0) {
if (lLen < rLen) {
return 1;
} else if (lLen > rLen) {
return -1;
}
return temp;
} else if (lLen != rLen) {
if (left.name.length() > right.name.length()) {
return 1;
} else if (left.name.length() < right.name.length()) {
return -1;
}
}
return left.name.compareToIgnoreCase(right.name);
} else {
return -1;
}
} else if (rightNameMatch.found()) {
return 1;
}
T9MatchInfo leftNumberMatch = left.phoneNumberMatchInfo;
T9MatchInfo rightNumberMatch = right.phoneNumberMatchInfo;
if (leftNumberMatch.found()) {
if (rightNumberMatch.found()) {
int lStart = leftNumberMatch.start();
int rStart = rightNumberMatch.start();
if (lStart < rStart) {
return -1;
} else if (lStart > rStart) {
return 1;
} else {
return left.phoneNumber.compareToIgnoreCase(right.phoneNumber);
}
} else {
return -1;
}
} else if (rightNumberMatch.found()) {
return 1;
}
return 0;
}
private int getMatchLength(T9MatchInfo matchInfo) {
int len = 0;
while (matchInfo != null) {
len += matchInfo.length();
matchInfo = matchInfo.next();
}
return len;
}
};
}
- Contact.java
import cn.tinkling.t9.T9MatchInfo;
public class Contact {
public String name;
public String phoneNumber;
public String t9Key;
public T9MatchInfo nameMatchInfo;
public T9MatchInfo phoneNumberMatchInfo;
public Contact(String name, String phoneNumber, String t9Key) {
this.name = name;
this.phoneNumber = phoneNumber;
this.t9Key = t9Key;
}
public Contact(Contact contact) {
this(contact.name, contact.phoneNumber, contact.t9Key);
}
}
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