實現(xiàn)用原生鍵盤輸入表情并顯示暑劝,有兩種辦法:
- 發(fā)送時將String字符串轉(zhuǎn)換為Unicode編碼字符串,顯示接收的列表時用Unicode編碼字符串轉(zhuǎn)化為String字符串
- 發(fā)送時將String字符串轉(zhuǎn)換為UTF-8編碼字符串幕垦,顯示接收的列表時用UTF-8編碼字符串轉(zhuǎn)化為String字符串
將String字符串轉(zhuǎn)換為Unicode編碼字符串
只是將中文字符串和emoji表情轉(zhuǎn)換為十六進制Unicode編碼字符串:
/**
* 把中文字符串轉(zhuǎn)換為十六進制Unicode編碼字符串
*/
public static String stringToUnicode(String s) {
String str = "";
for (int i = 0; i < s.length(); i++) {
int ch = (int) s.charAt(i);
if (ch > 255)
str += "\\u" + Integer.toHexString(ch);
else
str += "\\" + Integer.toHexString(ch);
}
return str;
}
將中文先改、英文蒸走、數(shù)字字符串和emoji表情轉(zhuǎn)換為十六進制Unicode編碼字符串:
/**
* 把中文字符串轉(zhuǎn)換為十六進制Unicode編碼字符串
*/
public static String stringToUnicode(String s) {
String str = "";
for (int i = 0; i < s.length(); i++) {
int ch = (int) s.charAt(i);
if (ch > 255)
str += "\\u" + Integer.toHexString(ch);
else
str += String.valueOf(s.charAt(i));
}
return str;
}
將輸入的每個字符轉(zhuǎn)換為unicode編碼字符串
/**
* 字符串轉(zhuǎn)換unicode
*/
public static String stringToUnicode(String string) {
StringBuffer unicode = new StringBuffer();
for (int i = 0; i < string.length(); i++) {
// 取出每一個字符
char c = string.charAt(i);
// 轉(zhuǎn)換為unicode
unicode.append("\\u" + Integer.toHexString(c));
}
return unicode.toString();
}
將Unicode編碼字符串轉(zhuǎn)換為String字符串
使用正則表達(dá)式將Unicode編碼字符串轉(zhuǎn)換為string字符串(包括中文载碌、英文、數(shù)字、emoji表情)
/**
* 把十六進制Unicode編碼字符串轉(zhuǎn)換為中文字符串
*/
public static String unicodeToString(String str) {
Pattern pattern = Pattern.compile("(\\\\u(\\p{XDigit}{2,4}))");
Matcher matcher = pattern.matcher(str);
char ch;
while (matcher.find()) {
ch = (char) Integer.parseInt(matcher.group(2), 16);
str = str.replace(matcher.group(1), ch + "");
}
return str;
}
將每個Unicode編碼字符串取出轉(zhuǎn)換為string字符串(包括中文弦撩、英文、數(shù)字猾漫、emoji表情)
/**
* unicode 轉(zhuǎn)字符串
*/
public static String unicode2String(String unicode) {
StringBuffer string = new StringBuffer();
String[] hex = unicode.split("\\\\u");
for (int i = 1; i < hex.length; i++) {
// 轉(zhuǎn)換出每一個代碼點
int data = Integer.parseInt(hex[i], 16);
// 追加成string
string.append((char) data);
}
return string.toString();
}
將String字符串轉(zhuǎn)換為UTF-8編碼字符串
編碼:
/**
* 字符串換成UTF-8
*
* @param str
* @return
*/
public static String stringToUtf8(String str) {
String result = null;
try {
result = URLEncoder.encode(str, "UTF-8");
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return result;
}
將UTF-8編碼字符串轉(zhuǎn)換為String字符串
解碼:
/**
* utf-8換成字符串
*
* @param str
* @return
*/
public static String utf8ToString(String str) {
String result = null;
try {
result = URLDecoder.decode(str, "UTF-8");
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return result;
}