iOS开发中手机号码和价格金额有效性判断及特殊字符的限制

 
///// 手机号码的有效性判断
//检测是否是手机号码
- (BOOL)isMobileNumber:(NSString*)mobileNum
{
   
   NSString * MOBILE = @"^1(3[0-9]|5[0-35-9]|8[025-9])\\d{8}$";
   
   NSString * CM =@"^1(34[0-8]|(3[5-9]|5[017-9]|8[278])\\d)\\d{7}$";
   
   NSString * CU = @"^1(3[0-2]|5[256]|8[56])\\d{8}$";
   
   NSString * CT = @"^1((33|53|8[09])[0-9]|349)\\d{7}$";
   
    //NSString * PHS = @"^0(10|2[0-5789]|\\d{3})\\d{7,8}$";
   
   NSPredicate *regextestmobile = [NSPredicatepredicateWithFormat:@"SELF MATCHES %@", MOBILE];
   NSPredicate *regextestcm = [NSPredicate predicateWithFormat:@"SELFMATCHES %@", CM];
   NSPredicate *regextestcu = [NSPredicate predicateWithFormat:@"SELFMATCHES %@", CU];
   NSPredicate *regextestct = [NSPredicate predicateWithFormat:@"SELFMATCHES %@", CT];
   
    if(([regextestmobile evaluateWithObject:mobileNum] == YES)
       || ([regextestcmevaluateWithObject:mobileNum] == YES)
       || ([regextestctevaluateWithObject:mobileNum] == YES)
       || ([regextestcuevaluateWithObject: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

#define myDotNumbers    @"0123456789.\n"
#define myNumbers        @"0123456789\n"
-(void) createTextFiled {
   textfield1_ = [[UITextField alloc] initWithFrame:CGRectMake(0, 0,20, 20)];
   textfield1_.delegate = self;
    [selfaddSubview:textfield1_];
   
   textfield2_ = [[UITextField alloc] initWithFrame:CGRectMake(0, 0,20, 20)];
   textfield2_.delegate = self;
    [selfaddSubview:textfield2_];
   
   
   textfield3_ = [[UITextField alloc] initWithFrame:CGRectMake(0, 0,20, 20)];
   textfield3_.delegate = self;
    [selfaddSubview: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 *)textFieldshouldChangeCharactersInRange:(NSRange)rangereplacementString:(NSString *)string {
   NSCharacterSet *cs;
    if([textField isEqual:textfield1_]) {
       cs = [[NSCharacterSetcharacterSetWithCharactersInString:myNumbers] invertedSet];
       NSString *filtered = [[stringcomponentsSeparatedByCharactersInSet:cs]componentsJoinedByString:@""];
       BOOL basicTest = [stringisEqualToString:filtered];
       if (!basicTest) {
          [self showMyMessage:@"只能输入数字"];
          return NO;
       }
    }
    elseif ([textField isEqual:textfield2_]) {
       cs = [[NSCharacterSetcharacterSetWithCharactersInString:myNumbers] invertedSet];
       NSString *filtered = [[stringcomponentsSeparatedByCharactersInSet:cs]componentsJoinedByString:@""];
       BOOL basicTest = [stringisEqualToString:filtered];
       if (!basicTest) {
          [self showMyMessage:@"只能输入数字"];
          return NO;
       }
    }
    elseif ([textField isEqual:textfield3_]) {
       NSUInteger nDotLoc =[textField.text rangeOfString:@"."].location;
       if (NSNotFound == nDotLoc&& 0 != range.location) {
          cs = [[NSCharacterSetcharacterSetWithCharactersInString:myDotNumbers] invertedSet];
       }
       else {
          cs = [[NSCharacterSetcharacterSetWithCharactersInString:myNumbers] invertedSet];
       }
       NSString *filtered = [[stringcomponentsSeparatedByCharactersInSet:cs]componentsJoinedByString:@""];
       BOOL basicTest = [stringisEqualToString: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;
}