ios - 通过自定义表格单元设置值

Question

在下面的自定义表格单元格(StepperProgressTableViewCell)中，我已将currentSection硬编码为 2 进行测试，但是当它命中StepperProgressTableViewCell awakeFromNib方法时，它将显示 0 。

TableViewController.m

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"StepperProgressCell";
    StepperProgressTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
    if (!cell) {
        cell = [[StepperProgressTableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
    }
    cell.stepperTableCellDelegate = self;
    cell.currentSection = 2;
    return cell;
}

StepperProgressTableViewCell.m

@implementation StepperProgressTableViewCell
@synthesize stepperView, currentSection;

- (void)awakeFromNib {
    [super awakeFromNib];
    [self setUpViews];
   // it always shows 0
    NSLog(@"%lu", currentSection);
}

- (void)setUpViews {
    self.stepperView = [[AYStepperView alloc]initWithFrame:CGRectMake(0, 0 , [[UIScreen mainScreen] bounds].size.width, kFormStepperViewHeight) titles:@[NSLocalizedString(@"Processing", nil), NSLocalizedString(@"Ready", nil), NSLocalizedString(@"Delivered", nil)]];
    self.stepperView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleTopMargin;
    self.stepperView.userInteractionEnabled = YES;
    self.stepperView.currentSection = currentSection
    [self addSubview:self.stepperView];
}

AYStepperView.m

- (instancetype)initWithFrame:(CGRect)frame titles:(NSArray *)titles {
    self = [super initWithFrame:frame];
    if (!self) {
      return nil;
    }
    // ultimate goal is to set AYStepperView's currentSection
    // the following also prints 0
    NSLog(@"%lu", _currentSection);
    return self;
 }

Answer 1

您需要添加一个方法来更改此属性，并在实现中将值传递给stepperView

StepperProgressTableViewCell.h

添加类似的方法

-(void)setupCurrentSection:(int)newCurrentSection;

StepperProgressTableViewCell.m

-(void)setupCurrentSection:(int)newCurrentSection{
    self.currentSection = newCurrentSection
    self.stepperView.currentSection = newCurrentSection
}

在您的cellForRow中，然后添加此行

[cell setupCurrentSection:2];

希望这可以帮助