Question

我在UITableView中有一个UITextField。我试图将UIPickerView或UIDatePicker作为其输入视图。这两个选项都出现了，在UIPickerView的情况下，它正在加载正确的数据。问题是它不可滚动，用户无法与之交互，选择并在各种选项之间滚动。

Userinteraction设置为yes，委托是正确的，一切都已就绪。

这是代码：

- (BOOL) textFieldShouldBeginEditing:(UITextField *)textField
{
    UIDatePicker *datepicker = [[UIDatePicker alloc] initWithFrame:CGRectZero];
    [datepicker setDatePickerMode:UIDatePickerModeDate];

    textField.inputView = datepicker;

    return YES;
}

Answer 1

为什么要在此方法中设置inputView？在viewDidLoad中执行此操作。这是一个配置，每次用户关注inputView：

时，设置特定textField都没有意义

- (void)viewDidLoad {
    [super viewDidLoad];

    UIDatePicker *datePicker = [[UIDatePicker alloc]init];
    [datePicker setDate:[NSDate date]];
    datePicker.datePickerMode = UIDatePickerModeDate;
    [datePicker addTarget:self action:@selector(editTextField:) forControlEvents:UIControlEventValueChanged];
    [textField setInputView:datePicker];
}

然后：

- (void)editTextField:(id)sender
{
    UIDatePicker *picker = (UIDatePicker *)textField.inputView;
    [picker setMaximumDate:[NSDate date]];
    NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
    NSDate *eventDate = picker.date;
    [dateFormat setDateFormat:@"dd/MM/yyyy"];

    NSString *dateString = [dateFormat stringFromDate:eventDate];
    textField.text = [NSString stringWithFormat:@"%@",dateString];
}

UIPickerView和UIDatePicker没有响应交互

1 个答案: