Question

我在重置此方法

中的集合视图框架（summaryView）时收到此错误

- (void)configureSubviews{

    _close.frame = CGRectMake(rect.origin.x, 10 , 51, 35);

    [_close setBackgroundImage:[UIImage imageNamed:@"close.png"] forState:UIControlStateNormal];

    [_close setBackgroundImage:[UIImage imageNamed:@"close.png"] forState:UIControlStateSelected];

    [_close setBackgroundImage:[UIImage imageNamed:@"close.png"] forState:UIControlStateHighlighted];

    [_close addTarget:self action:@selector(closeDetailView:) forControlEvents:UIControlEventTouchUpInside];

    [self addSubview:_close];

    _dragger.frame = CGRectMake((rect.size.width-35)/2, 28, 23, 10);

    _dragger.image = [UIImage imageNamed:@"summary_dragger_portrait.png"];

    _draggerView.frame = CGRectMake(0, 0, rect.size.width, 40);

    _contentView.frame = CGRectMake(0, 13, rect.size.width, rect.size.height);

    [_summaryView.collectionViewLayout invalidateLayout];

    _summaryView.frame = CGRectMake(0, 50, rect.size.width, rect.size.height-93);// exception occurs on this line

    _borderView.frame = CGRectMake(0, 36, rect.size.width, 0.5);

    actionX = rect.size.width-41;

}

例外：

MyApp [2585：728612] *断言失败 - [UICollectionViewData   validateLayoutInRect：]   /BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit/UIKit-3512.60.12/UICollectionViewData.m:408   2016-08-11 11：22：05.175 MyApp [2585：728612] * 终止应用程序   未捕获的异常'NSInternalInconsistencyException'，原因：'布局   索引路径（{length = 2，path = 0 - 0}）上的补充项的属性已从    索引路径：   （{length = 2，path = 0 - 0}）;元素种类：   （SummarySuppView）; frame =（6 0; 743 65）; zIndex = -1;至    索引路径：   （{length = 2，path = 0 - 0}）;元素种类：   （SummarySuppView）; frame =（6 0; 743 65）; zIndex = -1;无   使布局无效

此方法从动画块

调用

UIView transitionWithView:self.view duration:0.15
                       options:        (UIViewAnimationOptions)UIViewAnimationTransitionCurlUp 
                    animations:^ {
                        [self layoutDataViewsForSize:listSize];
                        [self layoutSummaryViewsForSize:summarySize];

                         [_summaryView layoutSubviews]; // method call
                    }
                    completion:^(BOOL finished){
                        if (_filterActions.alpha==0) {
                            _filterActions.alpha= 1.0f;
                        }
                    }];

Answer 1

这是因为您更改了布局而没有在其中的所有视图中调用invalidate。尝试在layoutSubviews中调用super，这可能有帮助

-(void)layoutSubviews {
   [super layoutSubviews];
  ...your code
}

Answer 2

添加此

- (void)viewWillLayoutSubviews
 {
    [super viewWillLayoutSubviews];
    [viewCollection.collectionViewLayout invalidateLayout];
}

NSInternalInconsistencyException的原因是什么以及如何解决？

2 个答案: