解决方法
-(BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
{
if (range.location == textField.text.length && [string isEqualToString:@" "]) {
// ignore replacement string and add your own
textField.text = [textField.text stringByAppendingString:@"\u00a0"];
return NO;
}
// for all other cases,proceed with replacement
return YES;
}
self.txtFirstName.text = [self.txtFirstName.text stringByReplacingOccurrencesOfString:@"\u00a0" withString:@" "];
从这个stackoverflow答案 – UITextField spacebar does not advance cursor in iOS 7
