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技術社區[雲棲]
ios 給textField每四位添加一個空格
#pragma mark - UITextFieldDelegate
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
if (textField == _cardTextField) {
// 四位加一個空格
if ([string isEqualToString:@""]) { // 刪除字符
if ((textField.text.length - 2) % 5 == 0) {
textField.text = [textField.text substringToIndex:textField.text.length - 1];
}
return YES;
} else {
if (textField.text.length % 5 == 0) {
textField.text = [NSString stringWithFormat:@"%@ ", textField.text];
}
}
return YES;
}
return YES;
}
最後更新：2017-04-03 05:39:38