iOS 8 UITableViewCell额外破碎的分隔符

时间:2014-09-23 10:09:57

标签: ios uitableview autolayout ios8

好的,我不知道iOS 8的用途,但是当我在其上运行我的应用程序时,我会看到这些额外的UITableViewSeparatorViews:

enter image description here

更新

我使用了Xcode 6 View Debugger,我看到在这个有问题的UITableView中,我看到这些额外的视图被添加为我的UITableViewCellContentView的子视图

_UITableViewCellSeparatorView

为什么iOS 8会将这些随机子视图添加到我的手机内容中?

从屏幕截图中可以看出,那些额外的行是没有到达屏幕边缘的行。

在我的视图控制器中,我使用以下代码使线条一直到屏幕边缘:

-(void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{
    cell.contentView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;

    if ([tableView respondsToSelector:@selector(setSeparatorInset:)]) {
        [tableView setSeparatorInset:UIEdgeInsetsZero];
    }

    if ([tableView respondsToSelector:@selector(setLayoutMargins:)]) {
        [tableView setLayoutMargins:UIEdgeInsetsZero];
    }

    if ([cell respondsToSelector:@selector(setLayoutMargins:)]) {
        [cell setLayoutMargins:UIEdgeInsetsZero];
    }
}

在我的自定义单元格类中,我正在设置:

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

        _reuseID = reuseIdentifier;
        self.selectionStyle = UITableViewCellSelectionStyleNone;
        self.contentView.backgroundColor = [[BSGThemeManager sharedTheme] clearColor];

        self.contentView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;

        self.containerView = [[UIView alloc] init];

        _photo = [[BSGUserPhotoView alloc] init];
        [_photo clipPhotoToRadius:37.5];
        //_photo.layer.cornerRadius = 37.5 / 2.0;
        //_photo.layer.borderColor = [[BSGThemeManager sharedTheme] photoBorderColor];
        //_photo.layer.borderWidth = [[BSGThemeManager sharedTheme] photoBorderWidth];
        //_photo.clipsToBounds = YES;

        self.photo.alpha = 0;

        _message = [[UILabel alloc] init];
        _message.backgroundColor = [[BSGThemeManager sharedTheme] clearColor];
        _message.numberOfLines = 0;
        _message.lineBreakMode = NSLineBreakByWordWrapping;
        _message.font = [[BSGThemeManager sharedTheme] varelaRoundFontWithSize:15];

        self.message.alpha = 0;

        _time = [[UILabel alloc] init];
        _time.textAlignment = NSTextAlignmentRight;
        _time.font = [[BSGThemeManager sharedTheme] helveticaNeueFontWithSize:16];
        _time.textColor = [[BSGThemeManager sharedTheme] postTimeColor];
        [_time setContentCompressionResistancePriority:UILayoutPriorityRequired forAxis:UILayoutConstraintAxisHorizontal];
        [_time setContentHuggingPriority:UILayoutPriorityRequired forAxis:UILayoutConstraintAxisHorizontal];

        self.time.alpha = 0;

        [self.containerView addSubview:_photo];
        [self.containerView addSubview:_message];
        [self.containerView addSubview:_time];

        [self.contentView addSubview:self.containerView];

        [self addAllConstraints];
    }
    return self;
}

我不确定这条线是否是原因:

self.contentView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;

我的手机的Autolayout代码是:

-(void)addAllConstraints
{
    self.containerView.translatesAutoresizingMaskIntoConstraints = NO;
    self.photo.translatesAutoresizingMaskIntoConstraints = NO;
    self.message.translatesAutoresizingMaskIntoConstraints = NO;
    self.time.translatesAutoresizingMaskIntoConstraints = NO;

    id views = @{
                 @"containerView": self.containerView,
                 @"photo": self.photo,
                 @"message": self.message,
                 @"time": self.time
                 };

    [self.contentView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[containerView]|" options:0 metrics:nil views:views]];
    [self.contentView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|[containerView]|" options:0 metrics:nil views:views]];


    // --------------------------------------------------
    // Horizontal Constraints
    // --------------------------------------------------

    [self.contentView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|-10-[photo(37.5)]-15-[message(195)]" options:0 metrics:nil views:views]];

    [self.contentView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:[time]-10-|" options:0 metrics:nil views:views]];

    // --------------------------------------------------
    // Vertical Constraints
    // --------------------------------------------------

    [self.contentView addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:[photo(37.5)]" options:0 metrics:nil views:views]];

    [self.contentView addConstraint:[NSLayoutConstraint constraintWithItem:self.photo attribute:NSLayoutAttributeCenterY relatedBy:NSLayoutRelationEqual toItem:self.contentView attribute:NSLayoutAttributeCenterY multiplier:1.0 constant:0.0]];

    [self.contentView addConstraint:[NSLayoutConstraint constraintWithItem:self.message attribute:NSLayoutAttributeCenterY relatedBy:NSLayoutRelationEqual toItem:self.photo attribute:NSLayoutAttributeCenterY multiplier:1.0 constant:0.0]];

    [self.contentView addConstraint:[NSLayoutConstraint constraintWithItem:self.time attribute:NSLayoutAttributeCenterY relatedBy:NSLayoutRelationEqual toItem:self.photo attribute:NSLayoutAttributeCenterY multiplier:1.0 constant:0.0]];
}

其他人遇到过这个奇怪的iOS 8错误?

它不会出现在iOS 7上。

4 个答案:

答案 0 :(得分:2)

我找到了一个简单的解决方案,当我覆盖layoutSubviews方法时,我也称之为超级方法,如下所示:

-(void)layoutSubviews {
[super layoutSubviews];
// rest of custom implementation code here
. . . 
}

希望有所帮助

答案 1 :(得分:0)

enter image description here 将突出显示更改为' 0'然后它解决了。这是通过XIB。

答案 2 :(得分:0)

大笑......好吧......我想我已经解决了这个问题。

我的一个子视图被称为“消息”,它只是一个UILabel。

在我的自定义tableview单元格的类中,此代码导致出现额外的行:

-(void)layoutSubviews
{
    self.message.preferredMaxLayoutWidth = self.bounds.size.width * 0.75;
}

在摆脱它之后,细胞在iOS 7中表现得像我喜欢它。

答案 3 :(得分:0)

对我来说,自定义tableViewCells的动态高度导致了一个问题,特别是heightForRowAtIndexPathestimatedHeightForRowAtIndexPath委托方法。一个适用于iOS 7,另一个适用于iOS 8.通过有条件地检查iOS版本来解决它。