如何动态更改表格视图单元格的颜色

Question

How to change the colour of the table view cell dynamically . I want to achieve something like shown in screenshot please suggest.

Thanks in advance.

Answer 1

You can use UITableViewCell property backgroundColor to set cell color dynamically.

Example-

-(UITableViewCell*)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{

    UITableViewCell* cell = [self.tableView dequeueReusableCellWithIdentifier:@"Cell"];
    if (!cell) {
        cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"Cell"];
    }
    //cellColorHolder is UIColor object type array.
    cell.backgroundColor = (UIColor*)[cellColorHolder objectAtIndex:indexPath.row];
    return cell;
}

Answer 2

It is easy to do:

I give a demo below:

1. Firstly, drag a tableView to vc :

2. Secondly, set the tableView 's delegate and dataSource:

3. The third step, in your vc , set the data :

   import UIKit

   class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {

   @IBOutlet weak var tableView: UITableView!

   var cellCount:Int! = 6

   var cus_color:UIColor = UIColor.init(red: 35 / 255.0, green: 204/255.0, blue: 216.0/255.0, alpha: 1.0)

    override func viewDidLoad() { super.viewDidLoad() self.tableView.separatorStyle = .none } func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat { return 100 } func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { return cellCount } func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { let cell = UITableViewCell() // or your custom cell let perLevel:CGFloat = CGFloat(1.0) / CGFloat(self.cellCount) cell.backgroundColor = UIColor.init(red: 35 / 255.0, green: 204/255.0, blue: 216.0/255.0, alpha: (perLevel + CGFloat(indexPath.row) * perLevel)) return cell } func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) { self.tableView.deselectRow(at: indexPath, animated: false) } }