Swift 4.2 Sort array using a selected property and sort order

Question

I'm trying to sort an array of custom struct in swift 4.2. I want to sort it out in such a way that

Objects with true isSelected bool property are always at top and all other objects should be sort by ascending using a property called sortOrder (Int).
Objects with isSelected property should also be sorted by sortOrder (ascending way). So far I was able to achieve the 1st goal but having some problem with the 2nd.

Here's my code:

    myArray.sort { (item1, item2) -> Bool in

        if item1.isSelected ?? false && item2.isSelected == false  {
      return true
    } else if item2.isSelected ?? false {
     return false
    }

    return item1. sortOrder < item2. sortOrder
      }

Please help with the 2nd objective. Thank you.

Daniyal Raza · Accepted Answer · 2018-11-17 14:48:54Z

2

To sort the array in place:

myArray.sort { item1, item2 in 
   if item1.isSelected == item2.isSelected {
      return item1.sortOrder < item2.sortOrder 
   }
   return item1.isSelected && !item2.isSelected 
}

To get a new sorted array

let sortedArray = myArray.sorted { item1, item2 in 
   if item1.isSelected == item2.isSelected {
      return item1.sortOrder < item2.sortOrder 
   }
   return item1.isSelected && !item2.isSelected 
}

edited Nov 17, 2018 at 14:48

answered Nov 17, 2018 at 14:36

Daniyal Raza

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1 Comment

Rakesha Shastri Over a year ago

Nice answer mate!

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