Picker View - Display an Imageview according to the sum of values

Question

Hello.

I’m trying to work with Picker View to display a combination of values.

 var pickerDataSource = [["a", "b", "c", "d"],["1","2","3","4"]];

Doubt is; how are results within a condition?

        if(row == 0)
    {
        self.view.backgroundColor = UIColor.whiteColor();
    }
    else
        if(row == 1)

    {
        self.view.backgroundColor = UIColor.redColor();
    }
    else if(row == 1)
    {
        self.view.backgroundColor =  UIColor.greenColor();
    }
    else if(row == 3)
    {
        self.view.backgroundColor =  UIColor.blueColor();
    }
    else
    {
        self.view.backgroundColor = UIColor.blueColor();
    }
}

Answer 1

First you need to know which array wants to extract the value. If this is the case with the number array, use [1], which would be the second index of your pickerDataSource array. [Row] would be the index you want to extract from the array of numbers, according to your code so I used the Row.

To extract the value use this code:

pickerDataSource[1][row]

With this you have the value to perform the calculations.

Answer 2

if pickerDataSource[0][row] == "a" && pickerDataSource[1][row] == "1"{

    print ("coloque a cor desejada")

}
else{

    print ("coloque outra cor")

}

Before Else, you can put an Else if and go putting other possibilities of values and colors to the result.