CODEWITHSUNDEEP
swiftuitableviewfor-in-loop
user2389743
user2389743

Reputation: 11

How to display a large number of labels in the customized ui table view cell swift?

I Am displaying data as shown in this image I want to display the marks or score which I am using as labels. Approx 100s of labels.

I am taking each student details as 1 separate array like: 

student1 = [
    [test details, test1, test2, test3, test4],
    [subject1,100,98,56,78],
    [subject2,67,78,89,56],
    [subject3,67,56,34,78],
    [subject4,56,46,84,38]]

student2 = [[test details, test1, test2, test3, test4],[subject1,100,98,56,78],[subject2,67,78,89,56],[subject3,67,56,34,78],[subject4,56,46,84,38]]

and so on....

these details I want to display in a UITableViewCell custom cell.

I have written class StudentCustomCell, which extends UITableViewCell

using for loops

  1. creating scroll view
  2. creating background view of scores
  3. and creating marks labels as my requirement

when I execute the code the same labels/marks of only student 1 were displaying in all the cells.

As I am using only student 1 count in for-in-loop.

 override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

        let cell = tableView.dequeueReusableCell(withIdentifier: "SCell", for: indexPath) as! StudentCustomCell

        cell.cricketerName.text = studentDetails[indexPath.row][0]
        cell.studentImage.image = UIImage(named: studentDetails[indexPath.row][0])

    }

    return cricketerCell

}

func scoreScrollView(){

    scView = UIScrollView(frame: CGRect(x: 0, y: 120, width: cricketView.frame.width, height: 220))

    scView.backgroundColor = .white
    self.addSubview(scView)

    var formatView:UIView!

for i in 0..<(student1[0] as AnyObject).count! {

     formatView = UIView()
     xAxis = 10
     formatView.frame = CGRect(x: 0, y: CGFloat(yAxis), width: 640, height: 40)

     if(i % 2 == 0){
     formatView.backgroundColor = #colorLiteral(red: 0, green: 0, blue: 0, alpha: 0.2132919521)
     }else{
     formatView.backgroundColor = #colorLiteral(red: 0, green: 0, blue: 0, alpha: 0.4010595034)
     }

     for j in 0..<student1.count {

     let label = UILabel()
     label.text = "\(student1[j][i])"
     label.frame = CGRect(x: xAxis, y: CGFloat(yAxis)+5, width: 60, height: 30)
     xAxis = xAxis + 65
     scView.addSubview(label)
     }
     yAxis = yAxis + 40
     scView.addSubview(formatView)
     scrolls.append(scView)
     }

     scView.contentSize = CGSize(width: xAxis, height: scView.frame.height)

}


test details     subject1    subject2    subject3   subject4                 

test1              100          67           67         56               

test2               98          78           56         46        

test3               56          89           34         84                 

test4               78          56           78         38

Am displaying result like above in the cell/row of table view.

Upvotes: 0

Views: 521

Answers (1)

Nirav Bhatt
Nirav Bhatt

Reputation: 6969

For this kind of complex layout requirements, you should consider serialising your layout logic. Popular way of doing this is to use XIB / Storyboards to layout your UITableViewCell derived cell.

However the challenge is to position elements with respect to changing device sizes. Hence you should make use of auto-layout feature of iOS - just do it once and you will find it much easier to contain additional changes later.

On the contrary - Imagine the horror of writing frame-setting layout logic in code. After 2 weeks, you won't be able to make out why you wrote that code. The valid cases for writing this logic in your code do exist (performance reasons of loading xib/storyboard), but none are applicable here.

For this, see detailed discussion such as this and this. You won't get direct code, but you will surely know how to effectively do it.

Upvotes: 1

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