好久没写了,今天来一波项目遇到的问题吧.
判断全汉字（这个问题苦恼了我很久，现在很方便，几行代码就搞定）：
if ([self deptNameInputShouldChinese]) {
[DemonAlertHelper showToastWithMessage:@"只能是中文"];
return;
}
调用这个方法就可
#pragma mark--
#pragma mark 输入中文
- (BOOL) deptNameInputShouldChinese
{
NSString *regex = @"[\u4e00-\u9fa5]+";
NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];
if (![pred evaluateWithObject:inputTextField.text]) {
return YES;
}
return NO;
}
判断全数字：
- (BOOL) deptNumInputShouldNumber
{
NSString *regex =@"[0-9]*";
NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];
if (![pred evaluateWithObject:inputTextField.text]) {
return YES;
}
return NO;
}
判断全字母：
- (BOOL) deptPassInputShouldAlpha
{
NSString *regex =@"[a-zA-Z]*";
NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];
if (![pred evaluateWithObject:inputTextField.text]) {
return YES;
}
return NO;
}
判断仅输入字母或数字：
- (BOOL) deptIdInputShouldAlphaNum
{
NSString *regex =@"[a-zA-Z0-9]*";
NSPredicate *pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];
if (![pred evaluateWithObject:inputTextField.text]) {
return YES;
}
return NO;
}
//使用字母、数字和下划线!
-(BOOL)isChineseCharacterAndLettersAndNumbersAndUnderScore:(NSString *)string {
BOOL isName = NO;
NSString *regex =@"[a-zA-Z0-9_]*";
NSPredicate*pred = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex];
if ([pred evaluateWithObject:string]) {
isName = YES;//纯字母数字下划线
}else{
isName = NO;
}
return isName;
}
