iosswiftuitableviewios11uitableviewrowaction

UITableView Reload Rows unnaturally jerking the TableView in iOS 11.2

Strange issue arrived after updating new XCODE 9.2 with iOS 11.2, by calling 

let indexPath = IndexPath(item: 0, section: 1)
self.tableViewHome.reloadRows(at: [indexPath], with: .none)

It causes unnecessary jerking the whole TableView, Prior it was very fine with these code.

GIF Image for iOS 11.2

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GIF Image for iOS 11.1

enter image description here

How to stop this Jerking, I have to reload only one cell in the tableview among two cells.

Any help will be appreciated.

Thanks

Solution

  • **For ios 11.2.* **

    tableView.rowHeight = UITableViewAutomaticDimension in viewDidLoad()

    add estimatedHeightForRowAt

    func tableView(_ tableView: UITableView, estimatedHeightForRowAt indexPath: IndexPath) -> CGFloat {

        if indexPath.row == 0{

            return firstCellHeight()
        }
        else{

            return UITableViewAutomaticDimension
        }
}

    firstCellHeight is my First Cell Height

    func firstCellHeight() -> CGFloat{

        if UIDevice.Display.typeIsLike == UIDevice.DisplayType.ipad{

        return 400

    }else if UIDevice.Display.typeIsLike == UIDevice.DisplayType.iphone7plus{

        return 230

    }else if UIDevice.Display.typeIsLike == UIDevice.DisplayType.iphoneX{

        return 200

    }else{

        return 180
    }
}

    and Don't use: reloadRows

        let indexPath = IndexPath(item: 1, section: 0)
    tableView.reloadRows(at: [indexPath], with: .none)

    Instead use reloadData i.e tableView.reloadData()

    And Finally Where your Action required, Use bellow code:

    let indexPath0 = IndexPath(item: 0, section: 0)
        if !((tableView.indexPathsForVisibleRows?.contains(indexPath0))!) {
            print("Not Visible")

            self.tableView.setContentOffset(CGPoint(x:0, y:firstCellHeight() ), animated: false)
        }