上次没有传demo 附件的github 地址贴出来。这次贴出来https://github.com/conquerLust/FromLikeExcel
类似excel跨行跨列的表格
利用UICollectionView实现，开题报告，关键是自定义UICollectionViewLayoutAttributes 自定义了cell的大小来实现跨行跨列表格
关键代码如下：
for (int section = 0; section < [self.collectionView numberOfSections]; section ++) {
NSMutableArray *sectionAttributes = [@[] mutableCopy];
for (NSUInteger row = 0; row < _allColumns; row++) {
CGSize itemSize = [self.itemsSize[section][row] CGSizeValue];
NSIndexPath *indexPath = [NSIndexPath indexPathForItem:row inSection:section];
UICollectionViewLayoutAttributes *attributes = [UICollectionViewLayoutAttributes layoutAttributesForCellWithIndexPath:indexPath];
attributes.frame = CGRectIntegral(CGRectMake(xOffset, yOffset, itemSize.width, itemSize.height));
if (section == 0 && row < _lockColumn) {
attributes.zIndex = 2015;
} else if (section == 0 || row < _lockColumn) {
attributes.zIndex = 2014;
}
if (section == 0) {
CGRect frame = attributes.frame;
frame.origin.y = self.collectionView.contentOffset.y;
attributes.frame = frame;
}
if (row < _lockColumn) {
CGRect frame = attributes.frame;
float offsetX = 0;
if (index > 0) {
for (int i = 0; i < row; i++) {
offsetX += MinmumItemWidth;
}
}
frame.origin.x = self.collectionView.contentOffset.x + offsetX;
attributes.frame = frame;
}
[sectionAttributes addObject:attributes];
xOffset = xOffset + MinmumItemWidth;
column ++;
if (column == _allColumns) {
if (xOffset > contentWidth) {
contentWidth = xOffset;
}
// 重置基本变量
column = 0;
xOffset = 0;
yOffset += MinmumItemHeight;
}
}
[self.itemAttributes addObject:sectionAttributes];
}
// 获取右下角最有一个item，开题报告，确定collectionView的contentSize大小
UICollectionViewLayoutAttributes *attributes = [[self.itemAttributes lastObject] lastObject];
contentHeight = attributes.frame.origin.y + attributes.frame.size.height;
_contentSize = CGSizeMake(contentWidth, contentHeight);