原文：http://blog.csdn.net/afyzgh/article/details/16965107
原文直接复制，会出些小错误，原文有java的校验，有需要情趣原文取。
下面是Xcode ARC测试通过的。
+ (BOOL)validateIDCardNumber:(NSString *)value {
value = [value stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
int length = 0;
if (!value) {
return NO;
}else {
length = (int)value.length;
if (length != 15 && length !=18) {
return NO;
}
}
// 省份代码
NSArray *areasArray =@[@"11", @"12", @"13", @"14", @"15", @"21", @"22", @"23", @"31", @"32", @"33", @"34", @"35", @"36", @"37", @"41", @"42", @"43", @"44", @"45", @"46", @"50", @"51", @"52", @"53", @"54", @"61", @"62", @"63", @"64", @"65", @"71", @"81", @"82", @"91"];
NSString *valueStart2 = [value substringToIndex:2];
BOOL areaFlag = NO;
for (NSString *areaCode in areasArray) {
if ([areaCode isEqualToString:valueStart2]) {
areaFlag =YES;
break;
}
}
if (!areaFlag) {
return false;
}
NSRegularExpression *regularExpression;
NSUInteger numberofMatch;
int year = 0;
switch (length) {
case 15:
year = [value substringWithRange:NSMakeRange(6,2)].intValue +1900;
if (year % 4 ==0 || (year % 100 ==0 && year % 4 ==0)) {
regularExpression = [[NSRegularExpression alloc] initWithPattern:@"^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}$"
options:NSRegularExpressionCaseInsensitive
error:nil];// 测试出生日期的合法性
}else {
regularExpression = [[NSRegularExpression alloc] initWithPattern:@"^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}$"
options:NSRegularExpressionCaseInsensitive
error:nil];// 测试出生日期的合法性
}
numberofMatch = [regularExpression numberOfMatchesInString:value
options:NSMatchingReportProgress
range:NSMakeRange(0, value.length)];
if(numberofMatch > 0) {
return YES;
}else {
return NO;
}
case 18:
year = [value substringWithRange:NSMakeRange(6,4)].intValue;
if (year % 4 ==0 || (year % 100 ==0 && year % 4 ==0)) {
regularExpression = [[NSRegularExpression alloc] initWithPattern:@"^[1-9][0-9]{5}19[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}[0-9Xx]$"
options:NSRegularExpressionCaseInsensitive
error:nil];// 测试出生日期的合法性
}else {
regularExpression = [[NSRegularExpression alloc] initWithPattern:@"^[1-9][0-9]{5}19[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}[0-9Xx]$"
options:NSRegularExpressionCaseInsensitive
error:nil];// 测试出生日期的合法性
}
numberofMatch = [regularExpression numberOfMatchesInString:value
options:NSMatchingReportProgress
range:NSMakeRange(0, value.length)];
if(numberofMatch > 0) {
int S = ([value substringWithRange:NSMakeRange(0,1)].intValue + [value substringWithRange:NSMakeRange(10,1)].intValue) *7 + ([value substringWithRange:NSMakeRange(1,1)].intValue + [value substringWithRange:NSMakeRange(11,1)].intValue) *9 + ([value substringWithRange:NSMakeRange(2,1)].intValue + [value substringWithRange:NSMakeRange(12,1)].intValue) *10 + ([value substringWithRange:NSMakeRange(3,1)].intValue + [value substringWithRange:NSMakeRange(13,1)].intValue) *5 + ([value substringWithRange:NSMakeRange(4,1)].intValue + [value substringWithRange:NSMakeRange(14,1)].intValue) *8 + ([value substringWithRange:NSMakeRange(5,1)].intValue + [value substringWithRange:NSMakeRange(15,1)].intValue) *4 + ([value substringWithRange:NSMakeRange(6,1)].intValue + [value substringWithRange:NSMakeRange(16,1)].intValue) *2 + [value substringWithRange:NSMakeRange(7,1)].intValue *1 + [value substringWithRange:NSMakeRange(8,1)].intValue *6 + [value substringWithRange:NSMakeRange(9,1)].intValue *3;
int Y = S % 11;
NSString *M = @"F";
NSString *JYM = @"10X98765432";
M = [JYM substringWithRange:NSMakeRange(Y,1)]; // 判断校验位
if ([M isEqualToString:[value substringWithRange:NSMakeRange(17,1)]]) {
return YES;// 检测ID的校验位
}else {
return NO;
}
}else {
return NO;
}
default:
return false;
}
}