判断输入的手机号是否合法

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-(BOOL)isMobileNumber:(NSString )mobileNum {
/*
* 手机号码
* 移动：134[0-8],135,136,137,138,139,150,151,157,158,159,182,187,188
* 联通：130,131,132,152,155,156,185,186
* 电信：133,1349,153,180,189
*/
NSString * MOBILE = @"^1(3[0-9]|5[0-35-9]|8[025-9])\d{8}$";

/**
 10         * 中国移动：China Mobile
 11         * 134[0-8],135,136,137,138,139,150,151,157,158,159,182,187,188
 12         */
NSString * CM = @"^1(34[0-8]|(3[5-9]|5[017-9]|8[278])\\d)\\d{7}$";
/**
 15         * 中国联通：China Unicom
 16         * 130,131,132,152,155,156,185,186
 17         */
NSString * CU = @"^1(3[0-2]|5[256]|8[56])\\d{8}$";
/**
 20         * 中国电信：China Telecom
 21         * 133,1349,153,180,189
 22         */
NSString * CT = @"^1((33|53|8[09])[0-9]|349)\\d{7}$";
/**
 25         * 大陆地区固话及小灵通
 26         * 区号：010,020,021,022,023,024,025,027,028,029
 27         * 号码：七位或八位
 28         */
// NSString * PHS = @"^0(10|2[0-5789]|\\d{3})\\d{7,8}$";

NSPredicate *regextestmobile = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", MOBILE];
NSPredicate *regextestcm = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CM];
NSPredicate *regextestcu = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CU];
NSPredicate *regextestct = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", CT];

if (([regextestmobile evaluateWithObject:mobileNum] == YES)
    || ([regextestcm evaluateWithObject:mobileNum] == YES)
    || ([regextestct evaluateWithObject:mobileNum] == YES)
    || ([regextestcu evaluateWithObject:mobileNum] == YES))
    {
    return YES;
    }
else
    {
    return NO;
    }

}

/* 特殊字符的限制输入，价格金额的有效性判断*/
-(void) createTextFiled {

textfield1_ = [[UITextField alloc] initWithFrame:CGRectMake(0, 0, 20, 20)];
textfield1_.delegate = self;
[self addSubview:textfield1_]; 

 textfield2_ = [[UITextField alloc] initWithFrame:CGRectMake(0, 0, 20, 20)];
textfield2_.delegate = self;
[self addSubview:textfield2_];

 textfield3_ = [[UITextField alloc] initWithFrame:CGRectMake(0, 0, 20, 20)];
textfield3_.delegate = self;
[self addSubview:textfield3_];

}

-(void)showMyMessage:(NSString*)aInfo {

UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"提示" message:aInfo delegate:self cancelButtonTitle:@"确定" otherButtonTitles:nil, nil];
[alertView show];
[alertView release];

}

-(BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
NSCharacterSet *cs;
if ([textField isEqual:textfield1_]) {
cs = [[NSCharacterSet characterSetWithCharactersInString:myNumbers] invertedSet];
NSString *filtered = [[string componentsSeparatedByCharactersInSet:cs] componentsJoinedByString:@""];
BOOL basicTest = [string isEqualToString:filtered];
if (!basicTest) {
[self showMyMessage:@"只能输入数字"];
return NO;
}
}
else if ([textField isEqual:textfield2_]) {
cs = [[NSCharacterSet characterSetWithCharactersInString:myNumbers] invertedSet];
NSString *filtered = [[string componentsSeparatedByCharactersInSet:cs] componentsJoinedByString:@""];
BOOL basicTest = [string isEqualToString:filtered];
if (!basicTest) {
[self showMyMessage:@"只能输入数字"];
return NO;
}
}
else if ([textField isEqual:textfield3_]) {
NSUInteger nDotLoc = [textField.text rangeOfString:@"."].location;
if (NSNotFound == nDotLoc && 0 != range.location) {
cs = [[NSCharacterSet characterSetWithCharactersInString:myDotNumbers] invertedSet];
}
else {
cs = [[NSCharacterSet characterSetWithCharactersInString:myNumbers] invertedSet];
}
NSString *filtered = [[string componentsSeparatedByCharactersInSet:cs] componentsJoinedByString:@""];
BOOL basicTest = [string isEqualToString:filtered];
if (!basicTest) {

        [self showMyMessage:@"只能输入数字和小数点"];
        return NO;
    }
    if (NSNotFound != nDotLoc && range.location > nDotLoc + 3) {
        [self showMyMessage:@"小数点后最多三位"];
        return NO;
    }
}
return YES;

}
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