iOS 15: tableView in Cell，tableView.contentSize.height don't fix, before iOS 14 is no problem

[Aviicii]

**

• Current solution: iOS 15 estimatedRowHeight set a larger height
• if your UI cell's height may be 80 px
• your estimatedRowHeight must set > 80
• but the contentSize.height is not Accurate height

**

setData:

    tableView.reloadData()
    tableView.layoutIfNeeded()
    tableView.snp.updateConstraints { make in
        make.height.equalTo(tableView.contentSize.height)
    }

---

setUI:

    contentView.addSubview(tableView)
    tableView.snp.makeConstraints { make in
        make.top.left.right.equalToSuperview()
        make.height.equalTo(0)
        make.bottom.equalToSuperview().priority(.low)
    }

the code in iOS 15 don't work

[wiince]

Hi, this is a new feature of iOS15, you can set sectionHeaderTopPadding to 0 to avoid this happen, or add UITableView.appearance.sectionHeaderTopPadding = 0 as a common solution for your project.

[Aviicii]

Hi, this is a new feature of iOS15, you can set sectionHeaderTopPadding to 0 to avoid this happen, or add UITableView.appearance.sectionHeaderTopPadding = 0 as a common solution for your project.

[wiince]

I think you get the contentSize at the wrong time,

pls try this:

self.tableView.performBatchUpdates {
	self.tableView.reloadData()
} completion: { (_) in
	debugPrint(self.tableView.contentSize.height)
}