Create multiple UIImageViews in UICollectionViewCell

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I'm trying to make multiple UIImageViews in a UICollectionViewCell so I wrote this code but nothing appends to lines apparently.

class chartsCell: UICollectionViewCell {



    var lines = [UIImageView]()

    var chartValueCount = Int()



    override func prepareForReuse() {

        super.prepareForReuse()

        lines.removeAll()

        chartValueCount = 0

    }



    override init(frame: CGRect) {

        super.init(frame: frame)

        for i in 0 ..< chartValueCount {

            let line = UIImageView(frame: CGRect(x: frame.width * CGFloat(i + 1) / CGFloat(chartValueCount + 1) - (10 * CGFloat(i + 1)), y: 0, width: 20, height: frame.height))

            line.backgroundColor = UIColor.blue

            line.layer.masksToBounds = true

            line.layer.cornerRadius = 10

            lines.append(line)

            contentView.addSubview(lines[i])

        }

    }



    required init?(coder aDecoder: NSCoder) {

        fatalError("init(coder:) has not been implemented")

    }

}

I change chartValueCount here:

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {

    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "chartsCell", for: indexPath) as! chartsCell

    cell.chartValueCount = chartValueCount[indexPath.row]

    return cell

}

There are three values in chartValueCount array and as I print cell.lines it prints three .
Nothing shows up in the CollectionView because lines is empty. How do I fill it properly?

arrays swift

share|improve this question

edited yesterday

Scriptable

12k43253

asked yesterday

vahidgr

297

• 
  
  
  

  
  

  
  
  
  
  
  

  
  Edit: removed xcode tag as it's irrelevant. Just what IDE op is using
  – Scriptable
  yesterday
  

  
  
  
  

add a comment | 

up vote
1
down vote

favorite

I'm trying to make multiple UIImageViews in a UICollectionViewCell so I wrote this code but nothing appends to lines apparently.

class chartsCell: UICollectionViewCell {



    var lines = [UIImageView]()

    var chartValueCount = Int()



    override func prepareForReuse() {

        super.prepareForReuse()

        lines.removeAll()

        chartValueCount = 0

    }



    override init(frame: CGRect) {

        super.init(frame: frame)

        for i in 0 ..< chartValueCount {

            let line = UIImageView(frame: CGRect(x: frame.width * CGFloat(i + 1) / CGFloat(chartValueCount + 1) - (10 * CGFloat(i + 1)), y: 0, width: 20, height: frame.height))

            line.backgroundColor = UIColor.blue

            line.layer.masksToBounds = true

            line.layer.cornerRadius = 10

            lines.append(line)

            contentView.addSubview(lines[i])

        }

    }



    required init?(coder aDecoder: NSCoder) {

        fatalError("init(coder:) has not been implemented")

    }

}

I change chartValueCount here:

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {

    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "chartsCell", for: indexPath) as! chartsCell

    cell.chartValueCount = chartValueCount[indexPath.row]

    return cell

}

There are three values in chartValueCount array and as I print cell.lines it prints three .
Nothing shows up in the CollectionView because lines is empty. How do I fill it properly?

arrays swift

share|improve this question

edited yesterday

Scriptable

12k43253

asked yesterday

vahidgr

297

• 
  
  
  

  
  

  
  
  
  
  
  

  
  Edit: removed xcode tag as it's irrelevant. Just what IDE op is using
  – Scriptable
  yesterday
  

  
  
  
  

add a comment | 

up vote
1
down vote

favorite

up vote
1
down vote

favorite

I'm trying to make multiple UIImageViews in a UICollectionViewCell so I wrote this code but nothing appends to lines apparently.

class chartsCell: UICollectionViewCell {



    var lines = [UIImageView]()

    var chartValueCount = Int()



    override func prepareForReuse() {

        super.prepareForReuse()

        lines.removeAll()

        chartValueCount = 0

    }



    override init(frame: CGRect) {

        super.init(frame: frame)

        for i in 0 ..< chartValueCount {

            let line = UIImageView(frame: CGRect(x: frame.width * CGFloat(i + 1) / CGFloat(chartValueCount + 1) - (10 * CGFloat(i + 1)), y: 0, width: 20, height: frame.height))

            line.backgroundColor = UIColor.blue

            line.layer.masksToBounds = true

            line.layer.cornerRadius = 10

            lines.append(line)

            contentView.addSubview(lines[i])

        }

    }



    required init?(coder aDecoder: NSCoder) {

        fatalError("init(coder:) has not been implemented")

    }

}

I change chartValueCount here:

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {

    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "chartsCell", for: indexPath) as! chartsCell

    cell.chartValueCount = chartValueCount[indexPath.row]

    return cell

}

There are three values in chartValueCount array and as I print cell.lines it prints three .
Nothing shows up in the CollectionView because lines is empty. How do I fill it properly?

arrays swift

share|improve this question

edited yesterday

Scriptable

12k43253

asked yesterday

vahidgr

297

I'm trying to make multiple UIImageViews in a UICollectionViewCell so I wrote this code but nothing appends to lines apparently.

class chartsCell: UICollectionViewCell {



    var lines = [UIImageView]()

    var chartValueCount = Int()



    override func prepareForReuse() {

        super.prepareForReuse()

        lines.removeAll()

        chartValueCount = 0

    }



    override init(frame: CGRect) {

        super.init(frame: frame)

        for i in 0 ..< chartValueCount {

            let line = UIImageView(frame: CGRect(x: frame.width * CGFloat(i + 1) / CGFloat(chartValueCount + 1) - (10 * CGFloat(i + 1)), y: 0, width: 20, height: frame.height))

            line.backgroundColor = UIColor.blue

            line.layer.masksToBounds = true

            line.layer.cornerRadius = 10

            lines.append(line)

            contentView.addSubview(lines[i])

        }

    }



    required init?(coder aDecoder: NSCoder) {

        fatalError("init(coder:) has not been implemented")

    }

}

I change chartValueCount here:

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {

    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "chartsCell", for: indexPath) as! chartsCell

    cell.chartValueCount = chartValueCount[indexPath.row]

    return cell

}

There are three values in chartValueCount array and as I print cell.lines it prints three .
Nothing shows up in the CollectionView because lines is empty. How do I fill it properly?

arrays swift

arrays swift

share|improve this question

edited yesterday

Scriptable

12k43253

asked yesterday

vahidgr

297

share|improve this question

edited yesterday

Scriptable

12k43253

asked yesterday

vahidgr

297

share|improve this question

share|improve this question

edited yesterday

Scriptable

12k43253

edited yesterday

Scriptable

12k43253

edited yesterday

Scriptable

12k43253

12k43253

asked yesterday

vahidgr

297

asked yesterday

vahidgr

297

asked yesterday

vahidgr

297

297

• 
  
  
  

  
  

  
  
  
  
  
  

  
  Edit: removed xcode tag as it's irrelevant. Just what IDE op is using
  – Scriptable
  yesterday
  

  
  
  
  

add a comment | 

• 
  
  
  

  
  

  
  
  
  
  
  

  
  Edit: removed xcode tag as it's irrelevant. Just what IDE op is using
  – Scriptable
  yesterday
  

  
  
  
  

Edit: removed xcode tag as it's irrelevant. Just what IDE op is using
– Scriptable
yesterday

Edit: removed xcode tag as it's irrelevant. Just what IDE op is using
– Scriptable
yesterday

add a comment | 

1 Answer
1

active

oldest

votes

up vote
1
down vote



accepted

class chartsCell: UICollectionViewCell {

var lines = [UIImageView]()

var chartValueCount:Int{

    didSet{

        for i in 0 ..< chartValueCount {

            let line = UIImageView(frame: CGRect(x: frame.width * CGFloat(i + 1) / CGFloat(chartValueCount + 1) - (10 * CGFloat(i + 1)), y: 0, width: 20, height: frame.height))

            line.backgroundColor = UIColor.blue

            line.layer.masksToBounds = true

            line.layer.cornerRadius = 10

            lines.append(line)

            contentView.addSubview(lines[i])

        }

    }

}



override func prepareForReuse() {

    super.prepareForReuse()

    lines.removeAll()

    chartValueCount = 0

}



override init(frame: CGRect) {

    super.init(frame: frame)



}



required init?(coder aDecoder: NSCoder) {

    fatalError("init(coder:) has not been implemented")

}

}

share|improve this answer

answered yesterday

Avtar Singh

282

add a comment | 

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1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

active

oldest

votes

active

oldest

votes

up vote
1
down vote



accepted

class chartsCell: UICollectionViewCell {

var lines = [UIImageView]()

var chartValueCount:Int{

    didSet{

        for i in 0 ..< chartValueCount {

            let line = UIImageView(frame: CGRect(x: frame.width * CGFloat(i + 1) / CGFloat(chartValueCount + 1) - (10 * CGFloat(i + 1)), y: 0, width: 20, height: frame.height))

            line.backgroundColor = UIColor.blue

            line.layer.masksToBounds = true

            line.layer.cornerRadius = 10

            lines.append(line)

            contentView.addSubview(lines[i])

        }

    }

}



override func prepareForReuse() {

    super.prepareForReuse()

    lines.removeAll()

    chartValueCount = 0

}



override init(frame: CGRect) {

    super.init(frame: frame)



}



required init?(coder aDecoder: NSCoder) {

    fatalError("init(coder:) has not been implemented")

}

}

share|improve this answer

answered yesterday

Avtar Singh

282

add a comment | 

up vote
1
down vote



accepted

class chartsCell: UICollectionViewCell {

var lines = [UIImageView]()

var chartValueCount:Int{

    didSet{

        for i in 0 ..< chartValueCount {

            let line = UIImageView(frame: CGRect(x: frame.width * CGFloat(i + 1) / CGFloat(chartValueCount + 1) - (10 * CGFloat(i + 1)), y: 0, width: 20, height: frame.height))

            line.backgroundColor = UIColor.blue

            line.layer.masksToBounds = true

            line.layer.cornerRadius = 10

            lines.append(line)

            contentView.addSubview(lines[i])

        }

    }

}



override func prepareForReuse() {

    super.prepareForReuse()

    lines.removeAll()

    chartValueCount = 0

}



override init(frame: CGRect) {

    super.init(frame: frame)



}



required init?(coder aDecoder: NSCoder) {

    fatalError("init(coder:) has not been implemented")

}

}

share|improve this answer

answered yesterday

Avtar Singh

282

add a comment | 

up vote
1
down vote



accepted

up vote
1
down vote



accepted

class chartsCell: UICollectionViewCell {

var lines = [UIImageView]()

var chartValueCount:Int{

    didSet{

        for i in 0 ..< chartValueCount {

            let line = UIImageView(frame: CGRect(x: frame.width * CGFloat(i + 1) / CGFloat(chartValueCount + 1) - (10 * CGFloat(i + 1)), y: 0, width: 20, height: frame.height))

            line.backgroundColor = UIColor.blue

            line.layer.masksToBounds = true

            line.layer.cornerRadius = 10

            lines.append(line)

            contentView.addSubview(lines[i])

        }

    }

}



override func prepareForReuse() {

    super.prepareForReuse()

    lines.removeAll()

    chartValueCount = 0

}



override init(frame: CGRect) {

    super.init(frame: frame)



}



required init?(coder aDecoder: NSCoder) {

    fatalError("init(coder:) has not been implemented")

}

}

share|improve this answer

answered yesterday

Avtar Singh

282

class chartsCell: UICollectionViewCell {

var lines = [UIImageView]()

var chartValueCount:Int{

    didSet{

        for i in 0 ..< chartValueCount {

            let line = UIImageView(frame: CGRect(x: frame.width * CGFloat(i + 1) / CGFloat(chartValueCount + 1) - (10 * CGFloat(i + 1)), y: 0, width: 20, height: frame.height))

            line.backgroundColor = UIColor.blue

            line.layer.masksToBounds = true

            line.layer.cornerRadius = 10

            lines.append(line)

            contentView.addSubview(lines[i])

        }

    }

}



override func prepareForReuse() {

    super.prepareForReuse()

    lines.removeAll()

    chartValueCount = 0

}



override init(frame: CGRect) {

    super.init(frame: frame)



}



required init?(coder aDecoder: NSCoder) {

    fatalError("init(coder:) has not been implemented")

}

}

share|improve this answer

answered yesterday

Avtar Singh

282

share|improve this answer

share|improve this answer

answered yesterday

Avtar Singh

282

answered yesterday

Avtar Singh

282

answered yesterday

Avtar Singh

282

282

add a comment | 

add a comment | 

 

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