Add text of UILabel from database by loop - Swift 3

Question

I'm creating UILabel by for loop and I wanna adding text in the UILabel from database, the text in database a String but I'm converting String to Array Characters, for example I've 4 labels and 4 characters (A, B, C, D), I want to add each characters in one label how can I do that ??

I wanna create like this :

And this my code :

func createTarget(id: Int) {

    listdata = dbHelpr.getDatabase(rowId: id)
    var targetHeigt = CGFloat()
    let viewWidth = self.view.frame.size.width
    
    if viewWidth == 320 {
        targetHeigt = 2.5
    } else {
        targetHeigt = 5
    }
    
    for data in listdata { // listdata is (Database) has a variable (ans)
        let yAxis : CGFloat = (self.view.frame.height) * 60%
        let i = data.ans.length
        // char count
        let width: Int = Int(view.frame.size.width) - 40
        // frame width
        var targetWidth: Int = (width - (i - 1) * 5) / i
        if targetWidth > 50 {
            targetWidth = 50
        }

        let totalWidth: Int = (targetWidth * i) + ((i - 1) * 5)

        for x in 0..<i {
            let currentWidth: Int = (width / 2) - (totalWidth / 2) + (x * targetWidth) + (x * 5) + 20
            let targetLabel = UILabel(frame: CGRect(x: CGFloat(currentWidth), y: yAxis, width: CGFloat(targetWidth), height: 50))
            targetLabel.backgroundColor = .white
            targetLabel.layer.masksToBounds = true
            targetLabel.layer.cornerRadius = 5
            targetLabel.textAlignment = .center
            targetLabel.textColor = .black

            for tar in data.ans.characters {
                targetLabel.text = String(tar)
            }

            self.view.addSubview(targetLabel)
        }
    }
}

When I run my code above show me this :

My output :

D

D

D

D

And when I edited and added my code to :

for data in listdata { // listdata is (Database) has a variable (ans)

    let tar = data.ans.characters.map{String($0)}

    lblLabel.text = tar.joined(separator: " ")

}

This a result of my code above :

My output :

D C B A

D C B A

D C B A

D C B A

What's the best solve to create label whit characters exactly like 1st picture ??

Are your 4 labels already created (in the Storyboard perhaps). Do you have @IBOutlets to them? — vacawama, Aug 20 '17 at 14:02
Please edit your first code block by inserting print statements to cover everything. Then show us the results. — Smartcat, Aug 20 '17 at 14:19
I'm creating my labels with for loop and I wanna to add text to each label from SQLite database, if you want to see how did I created my labels see this question and my [solve](https://stackoverflow.com/questions/45544072/organize-and-adjust-the-uilabel-position-per-devices-swift-3) @vacawama — Ameen MK, Aug 20 '17 at 14:39
Create a empty array and fetch each characters into it. And create labels after adding the characters into array. — Alwin, Aug 20 '17 at 14:40
My string is a array and I converted my string to characters @Alwin — Ameen MK, Aug 20 '17 at 14:41
Update *this* question with the complete code that creates the labels and sets their text. — vacawama, Aug 20 '17 at 15:05

score 1 · Accepted Answer · edited Aug 20 '17 at 15:38

1

You're already creating one label for each character, so there is no need to loop over them again.

Try this:

for (x, tar) in data.ans.characters.reversed().enumerated() {
    let currentWidth: Int = (width / 2) - (totalWidth / 2) + (x * targetWidth) + (x * 5) + 20
    let targetLabel = UILabel(frame: CGRect(x: CGFloat(currentWidth), y: yAxis, width: CGFloat(targetWidth), height: 50))
    targetLabel.backgroundColor = .white
    targetLabel.layer.masksToBounds = true
    targetLabel.layer.cornerRadius = 5
    targetLabel.textAlignment = .center
    targetLabel.textColor = .black

    targetLabel.text = String(tar)

    self.view.addSubview(targetLabel)
}

edited Aug 20 '17 at 15:38

Ameen MK

121
1
14

answered Aug 20 '17 at 14:55

vacawama

133,454
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It's working, but my characters get me left to right ( A B C D) I wanna right to left like this (D C B A) how can I do that ? – Ameen MK Aug 20 '17 at 15:31
`for (x, tar) in data.ans.characters.reversed().enumerated() {` – vacawama Aug 20 '17 at 15:34

Add text of UILabel from database by loop - Swift 3

1 Answers1