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Reloading Particular Row of PickerView in swift


Reloading Particular Row of PickerView in swift

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Reloading Particular Row of PickerView in swift
Tag : ios , By : chorn
Date : November 13 2020, 03:01 PM

I think the issue was by ths following , No such system method. However, if you are using custom view, you can try something like this:
(pickerView.view(forRow: <#T##Int#>, forComponent: <#T##Int#>) as? MyCustomView).image = newImage
label.tag = 10
imageView.tag = 20
if let myView = pickerView.view(forRow: row, forComponent: 0) as? UIView,
        let label = myView.viewWithTag(10) as? UILabel,
        let imageView = myView.viewWithTag(20) as? UIImageView{

        label.text = FilteredContactsNames[row]
        imageView.image = ilteredQuestion_Images[row]
}

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swift multilpe pickerView


Tag : ios , By : Carlos Galdino
Date : March 29 2020, 07:55 AM
I wish this helpful for you I can't seem to get all of my three options to appear when I populate my picker view. It will only give me the last selected column result.
var result = ""

for var i = 0; i < wheelContents.count; i++
{
    let selectedRow = pickerView.selectedRowInComponent(i) //get selected row in component
    let value = wheelContents[i][selectedRow] //get displayed value in component
    result += value + " "
}

sparLabel.text = result

How to use NSUserDefault with PickerView in Swift?


Tag : swift , By : Lord Zantor
Date : March 29 2020, 07:55 AM
Any of those help I made some Labels that change using PickerView. But when I change the Label and if I run my app again, it doesn't save to selected one. So I have to use NSUserDefault but I don't know how to use it in right way. , WBMDDrugManagerErrorCodeSave the selection like so:
func pickerView(pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
    NSUserDefaults.standardUserDefaults().setInteger(row, forKey: "choosenFood")
    NSUserDefaults.standardUserDefaults().synchronize()
    self.setLabelsForChoice(row)
}
override func viewWillAppear() {
    super.viewWillAppear()
    if let previousSelection:Int = NSUserDefaults.standardUserDefaults().integerForKey("choosenFood") as? Int{
        self.setLabelsForChoice(previousSelection)
    }
}
func setLabelsForChoice(_choice:Int){
    switch _choice{
        case 0:
            foodLabel.text = "Bread"
            labelTwo.text = "Bread is a staple food prepared from a dough of flour and water..."
            labelThree.text = "Bread is one of the oldest prepared foods..."
            break
        case 1:
            foodLabel.text = "Pizza"
            labelTwo.text = "Here will be more informations about Pizza"
            labelThree.text = "A fact about Pizza"
            break
        default:

            break
    }




}

How to set title for row in PickerView in Swift 3?


Tag : ios , By : Doug
Date : March 29 2020, 07:55 AM
seems to work fine I need to give title for rows according to array but I don't know how to do this. I'm new to iOS. , Use this code -
func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int
{
    if component == 0
    {
        return names?.count
    }
    else
    {
        return department?.count
    }
}

func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String?
{
    if component == 0
    {
        return names?[row]
    }
    else
    {
        return department?[row]
    }
}

Swift reloading cell without reloading whole tableView


Tag : swift , By : Dave
Date : March 29 2020, 07:55 AM
will be helpful for those in need You are doing the same in both code blocks. And in the worst case, you are asking your tableView two times for a cell - just because the class didn't match (but your needs are the same for both).
Interfaces (protocols in ObjC) let you define method signatures (and properties in Swift?). And that's what I'd do in ObjC: Define a protocol (interface in other languages) and simply require any cell for this tableView to implement it.

swift 4 pickerview with images


Tag : swift , By : Ashley
Date : March 29 2020, 07:55 AM
this will help I am trying to get images to show up in the pickerview instead of text. I am seeing ? and no images. I know the images are correct as I am using them in another view. , Just you can use this Method
func pickerView(_ pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusing view: UIView?) -> UIView {


        let myImageView = UIImageView(frame: CGRect(x: 0, y: 0, width: 220, height: 61))


        myImageView.image = pickerDataSource[row]


        return myImageView

    }
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