I want to create one array from this one array that is 2d array
var array1 = [apples,oranges,grapes,vegetables,soups]
var arraylist = [[apples,oranges,grapes],[vegetables,soups]]
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1So, in the end you want to have the arraylist or the array1?Geshode– Geshode2018-10-17 05:59:25 +00:00Commented Oct 17, 2018 at 5:59
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i want to create arraylist type of array which is divide by block like index 0 three elements and index 1 two elementsronit– ronit2018-10-17 06:00:33 +00:00Commented Oct 17, 2018 at 6:00
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2 Answers
You can achieve this with simple loop though also, if you have only these 5 elements and you wants to separate them with code only.
var array1 = ["apples","oranges","grapes","vegetables","soups"]
var arraylist:[[String]] = [[String]]()
var innerArray: [String] = [String]()
var isFirstTime: Bool = true
for obj in array1 {
if isFirstTime {
innerArray.append(obj)
if innerArray.count == 3 {
arraylist.append(innerArray)
innerArray.removeAll()
isFirstTime = false
}
} else {
innerArray.append(obj)
if innerArray.count == 2 {
arraylist.append(innerArray)
innerArray.removeAll()
}
}
}
print(arraylist)
Results: [["apples", "oranges", "grapes"], ["vegetables", "soups"]]
1 Comment
ronit
it's helpful thank you for the the anwser @Bhavin Kansagara
What you have written is completely valid in Swift. Consider the following:
let apples = "apples"
let oranges = "oranges"
let grapes = "grapes"
let vegetables = "vegetables"
let soups = "soups"
var array1 = [apples, oranges, grapes, vegetables, soups]
var arraylist = [[apples, oranges, grapes], [vegetables, soups]]
Now adding types these two are:
var array1: [String] = [apples, oranges, grapes, vegetables, soups]
var arraylist: [[String]] = [[apples, oranges, grapes], [vegetables, soups]]
In general you can create groups which define how your array should be split. Check the following:
// Constants
let apples = "apples"
let oranges = "oranges"
let grapes = "grapes"
let vegetables = "vegetables"
let soups = "soups"
// Groups of items
let groups: [[String]] = {
let fruits: [String] = [apples, oranges, grapes]
let misc: [String] = [vegetables, soups]
return [fruits, misc]
}()
// Array to seperate by group
let inputArray: [String] = [apples, oranges, grapes, vegetables, soups]
// Array of arrays of items per group. Outputs [["apples", "oranges", "grapes"], ["vegetables", "soups"]]
let grouppedArray: [[String]] = {
return groups.compactMap { group in
let filteredArray = inputArray.filter { group.contains($0) }
return filteredArray.isEmpty ? nil : filteredArray
}
}()
2 Comments
ronit
can i add 2d array in tableview section and in cell text i am creating expandable cell tableview by using this array list array so how could i add that array?
Matic Oblak
@ronit Sure. That is completely new question but number of sections is
groupedArray .count, number of rows is groupedArray[section] .count and text in cell is cell.textLabel?.text = groupedArray[indexPath.section][indexPath.row]. Expandable need a bit more work but I am sure after you have the whole table view setup you will find answers to do that.