在实际开发过程中，经常会遇到些不能让用户随便地输入手机号码，对输入的手机号码的正确判断；有些输入框只能输入数字，不能输入字母或特殊字符；还有些如价格金额之类的就只能输入数字和小数点且小数点后面保留两位。
///// 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;
}
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,布布扣,bubuko.com
原文地址：http://www.cnblogs.com/ruiying/p/3721679.html
