控制键盘只能输入数字
#pragma mark UITextFieldDelegate
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string{
// 判断输入的是否为数字 (只能输入数字)
NSString *validRegEx =@"^[0-9]*$";
NSPredicate *regExPredicate =[NSPredicate predicateWithFormat:@"SELF MATCHES %@", validRegEx];
BOOL myStringMatchesRegEx = [regExPredicate evaluateWithObject:string];
if (myStringMatchesRegEx)
return YES;
else
return NO;
}
补充：移动开发 , IOS ,
