IOS疯狂基础之输入限制—手机号，金额

来源：互联网发布：php 面向接口编程编辑：程序博客网时间：2024/06/04 01:18

#define myDotNumbers @"0123456789.\n"
#define myNumbers @"0123456789\n"

以下代码放在

shouldChangeCharactersInRange 代理方法中可以限制金额格式 6位整数 2位小数

//====================================================================

if ([string isEqualToString:@"\n"]||[string isEqualToString:@""]) {//按下return

return YES;

}

NSCharacterSet *cs;

NSUInteger nDotLoc = [textField.text rangeOfString:@"."].location;

if (NSNotFound == nDotLoc && 0 != range.location) {

cs = [[NSCharacterSetcharacterSetWithCharactersInString:myNumbers]invertedSet];

if ([string isEqualToString:@"."]) {

return YES;

}

if (textField.text.length>=6) { //小数点前面6位

return NO;

}

else {

cs = [[NSCharacterSetcharacterSetWithCharactersInString:myDotNumbers]invertedSet];

if (textField.text.length>=9) {

return NO;

}

NSString *filtered = [[stringcomponentsSeparatedByCharactersInSet:cs]componentsJoinedByString:@""];

BOOL basicTest = [string isEqualToString:filtered];

if (!basicTest) {

return NO;

}

if (NSNotFound != nDotLoc && range.location > nDotLoc +2) {//小数点后面两位

return NO;

}

return YES;

//====================================================================

///// 手机号码的有效性判断

//检测是否是手机号码
- (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

#define myDotNumbers @"0123456789.\n"
#define myNumbers @"0123456789\n"
-(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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