Question

所以我有一个自定义uitableviewcell，使用iCarousel加载另一个视图。那个观点失去了buttons。我看不到按钮，我可以点击它们，但是当我这样做时有一个例外。我认为这是一个记忆问题。

这就是我创建视图的方式 -

- (UIView *)carousel:(iCarousel *)carousel viewForItemAtIndex:(NSUInteger)index reusingView:(OptionView *)view
{
    if (view == nil)
    {
        view = [[[NSBundle mainBundle] loadNibNamed:@"OptionView" owner:view options:nil] lastObject];
    }
    NSDictionary* option = [self.options objectAtIndex:index];
    view.imageUrl = option[@"ImageUrl"];
    view.option = option[@"Option"];
    view.currentPage = option[@"Page"];
    view.page = view.currentPage;
    view.postAs = self.postingAs;
    [view init];
    return view;
}

为什么我收到错误？

-(id)init{
    self = [super init];
    self.upVotesLabel.text = [NSString stringWithFormat:@"%i", self.upVotes];
    self.downVotesLabel.text = [NSString stringWithFormat:@"%i",self.downVotes];
    dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0ul);

    NSString* photoUrl = [NSString stringWithFormat:@"%@",self.imageUrl];
    self.optionImageView.image = [UIImage imageNamed:@"trending.png"];
    dispatch_async(queue, ^{
        NSData *data = [NSData dataWithContentsOfURL:[NSURL URLWithString: photoUrl]];
        UIImage *image = [UIImage imageWithData:data];
        self.optionImageView.image = image;
    });


    return self;


}

Answer 1

在末尾删除此行[view init]，它会再次初始化视图。

Answer 2

如果在nib中加载视图。在awakeFromNib

中执行初始化

- (void)awakeFromNib
{
    self.upVotesLabel.text = [NSString stringWithFormat:@"%i", self.upVotes];
    self.downVotesLabel.text = [NSString stringWithFormat:@"%i",self.downVotes];
    dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0ul);

    NSString* photoUrl = [NSString stringWithFormat:@"%@",self.imageUrl];
    self.optionImageView.image = [UIImage imageNamed:@"trending.png"];
    dispatch_async(queue, ^{
        NSData *data = [NSData dataWithContentsOfURL:[NSURL URLWithString: photoUrl]];
        UIImage *image = [UIImage imageWithData:data];
        self.optionImageView.image = image;
    });
}

自定义uitableview单元格上的按钮消失

2 个答案: