/** 是不是表情 */
- (BOOL)stringContainsEmoji
{
__block BOOL returnValue = NO;
// 不知道是什么原因,九宫格的时候,输入的是表情.但是其实是正常的输入.
if ([BTSpeedDialSTR rangeOfString:self].length > 0) {
return NO;
}
[self enumerateSubstringsInRange:NSMakeRange(0, [self length])
options:NSStringEnumerationByComposedCharacterSequences
usingBlock:^(NSString *substring, NSRange substringRange, NSRange enclosingRange, BOOL *stop) {
const unichar high = [substring characterAtIndex: 0];
// Surrogate pair (U+1D000-1F9FF)
if (0xD800 <= high && high <= 0xDBFF) {
const unichar low = [substring characterAtIndex: 1];
const int codepoint = ((high - 0xD800) * 0x400) + (low - 0xDC00) + 0x10000;
if (0x1D000 <= codepoint && codepoint <= 0x1F9FF){
returnValue = YES;
}
// Not surrogate pair (U+2100-27BF)
} else {
if (0x2100 <= high && high <= 0x27BF){
returnValue = YES;
}
}
}];
return returnValue;
}
