Question

当我在横向中启动视图控制器时，单元格位于错误的位置（从左侧和右侧放置不正确），但在旋转后，一切都在纵向和横向上都能正常工作。可以做些什么呢？我尝试使布局无效，调用旋转方法无济于事。

这是我的代码：

设置流程布局：

self.flowLayout = [[PSTCollectionViewFlowLayout alloc] init];
self.flowLayout.scrollDirection = PSTCollectionViewScrollDirectionVertical;
self.flowLayout.minimumInteritemSpacing = VERTICAL_ITEM_SPACING;
self.flowLayout.minimumLineSpacing = HORIZONTAL_ITEM_SPACING;

插入方法：

- (UIEdgeInsets)collectionView:(PSTCollectionView *)collectionView
                        layout:(PSTCollectionViewLayout*)collectionViewLayout
        insetForSectionAtIndex:(NSInteger)section {

    self.currentOrientation = [UIApplication sharedApplication].statusBarOrientation;

    self.insets = UIInterfaceOrientationIsPortrait(self.currentOrientation) ? UIEdgeInsetsMake(0, 72, 24, 72) : UIEdgeInsetsMake(0, 35, 24, 35);

    //[self.collectionView.collectionViewLayout invalidateLayout];

    return self.insets;
}

Answer 1

子类PSTCollectionViewFlowLayout

@interface FlowLayout : PSTCollectionViewFlowLayout

在FlowLayout的init中设置所有属性

-(id)init{
    self = [super init];
    if (self) {
        self.scrollDirection = PSTCollectionViewScrollDirectionVertical;
        self.minimumInteritemSpacing = VERTICAL_ITEM_SPACING;
        self.minimumLineSpacing = HORIZONTAL_ITEM_SPACING;

        self.currentOrientation = [UIApplication sharedApplication].statusBarOrientation;
        self.sectionInset = UIInterfaceOrientationIsPortrait(self.currentOrientation) ? UIEdgeInsetsMake(0, 72, 24, 72) : UIEdgeInsetsMake(0, 35, 24, 35);

    }

    return self;
}

//然后初始化您的Flowlayout

self.flowLayout = [[FlowLayout alloc] init];

//随时设备旋转重置flowlayout

-(void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation{
    self.collectionView.collectionViewLayout = [[FlowLayout alloc] init];
}

Answer 2

我发现了一个错误，我通过单独的顶视图测量细胞的位置，这是错误的位置。细胞工作正常。

UICollection在横向模式下查看不正确的边缘插入

2 个答案: