ios - UITableView + UITextField + UIDatePicker

我有UIViewController和UITableViewCell以及UITextField和UIDatePicker。如果更改第一个单元格UITextField中的值，则更改单元格1和7中的值。如果更改第二个单元格UITextField中的值，则更改单元格2和8中的值。有时从第一个单元格滚动值之后一秒钟内移动。为什么会这样呢？对于单元格，我创建了一个单独的类UITextField和UIDatePicker。

我的UIViewController

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
     return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
     return [self.stepsController.timeadayVal integerValue];
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"Cell";

    addCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

    cell.titleLabel.text = [NSString stringWithFormat:@"%i прием",indexPath.row+1];

    return cell;
}

UITableViewCell.m

- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
if (self) {

    _titleLabel = [[UILabel alloc]initWithFrame:CGRectMake(20, 10, 320, 20)];

    _titleLabel.font = [UIFont fontWithName:@"HelveticaNeue-Light" size:17];
    _titleLabel.textColor = [UIColor darkGrayColor];

    [self addSubview:_titleLabel];

    _textField = [[UITextField alloc]initWithFrame:CGRectMake(20, 35, 280, 35)];

    UIView *paddingView6 = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 10, 20)];
    _textField.leftView = paddingView6;
    _textField.leftViewMode = UITextFieldViewModeAlways;

    [_textField.layer setBackgroundColor: [[UIColor colorWithRed:249.0/255.0 green:249.0/255.0 blue:249.0/255.0 alpha:1] CGColor]];
    [_textField.layer setBorderColor: [[UIColor colorWithRed:245.0/255.0 green:246.0/255.0 blue:247.0/255.0 alpha:1] CGColor]];
    [_textField.layer setBorderWidth: 0.2];
    [_textField.layer setCornerRadius:3.0f];
    [_textField.layer setMasksToBounds:YES];

    _textField.text = [NSString stringWithFormat:@"00:00"];
    _textField.font = [UIFont fontWithName:@"HelveticaNeue-Light" size:16.0];
    _textField.textColor = [UIColor grayColor];


    UIToolbar *myToolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, 320, 44)];
    NSMutableArray *itemsArray = [[NSMutableArray alloc] init];
    UIBarButtonItem *flexButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:self action:nil];
    [itemsArray addObject:flexButton];
    UIBarButtonItem *doneButton =
    [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone
                                                  target:self action:@selector(inputAccessoryViewDidFinish:)];

    [doneButton setTitleTextAttributes:@{
                                         UITextAttributeFont: [UIFont fontWithName:@"HelveticaNeue-Light" size:15.0],
                                         UITextAttributeTextColor: [UIColor colorWithRed:60.0/255.0 green:162.0/255.0 blue:161.0/255.0 alpha:1]
                                         } forState:UIControlStateNormal];

    [itemsArray addObject:doneButton];
    [myToolbar setItems:itemsArray animated:NO];


    UIDatePicker *timePicker = [[UIDatePicker alloc] init];
    timePicker.datePickerMode = UIDatePickerModeTime;

    [timePicker addTarget:self action:@selector(timeChanged:)
         forControlEvents:UIControlEventValueChanged];

    _textField.inputAccessoryView = myToolbar;
    _textField.inputView = timePicker;

    _textField.inputView = timePicker;

    [self addSubview:_textField];
}
return self;
}


-(void)timeChanged:(id)sender{

    UIDatePicker *picker=(UIDatePicker*)_textField.inputView;
    NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
    [dateFormat setDateFormat:@"HH:mm"];
    NSString *dateString = [dateFormat stringFromDate:picker.date];

    _textField.text = dateString;

}

-(void)inputAccessoryViewDidFinish:(id)sender {

    [_textField resignFirstResponder];

}

最佳答案

其次，带有文本字段显示错误的东西是结构问题。检查您的结构，并记住，每次滚动时，单元格都会加载新的。如果您一直添加子视图，那么就像是同一文本字段的4个视图之类的混乱情况，等等……请确保始终只有一个。

关于ios - UITableView + UITextField + UIDatePicker，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/20562013/