Preload cells of uitableview

Question

I acknowledge that UITableview load dynamically a cell when user scrolls. I wonder if there is a way to preload all cells in order not to load each one while scrolling. I need t

Answer 1

As suggested by Mark I also changed the height of my UITableView temporarily so that the table view creates enough reusable cells. Then I reset the height of my table view so that it stops creating reusable cells while scrolling.

To accomplish that I create a helper bool which is set to false by default:

var didPreloadCells = false

It is set to true when my table view first reloaded data and therefore created the first reusable cells.

resultsHandler.doSearch { (resultDict, error) -> Void in
    [...]

    self.tableView.reloadData()

    self.didPreloadCells = true

    [...]
}

The real trick happens in my viewDidLayoutSubviews Method. Here I set the frame of my table view depending on my boolean. If the reusable cells were not created yet I increase the frame of the table view. In the other case I set the normal frame

override func viewDidLayoutSubviews() {

    super.viewDidLayoutSubviews()

    self.tableView.frame = self.view.bounds

    if !didPreloadCells
    {
        self.tableView.frame.size.height += ResultCellHeight
    }
}

With the help of that the table view creates more initial reusable cells than normal and the scrolling is smooth and fluent because no additional cells need to be created.