How to select all cells of a UICollectionView programmatically











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I need a function, which "takes" all cells of a UICollectionView, so I can reset the backgroundColor of the cells. Is there a function with which I can do this or do I have to select all cells on their own with?:



collectionView.cellForItem(at: indexPath)





swift uicollectionview







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    up vote
    0
    down vote

    favorite












    I need a function, which "takes" all cells of a UICollectionView, so I can reset the backgroundColor of the cells. Is there a function with which I can do this or do I have to select all cells on their own with?:



    collectionView.cellForItem(at: indexPath)





    swift uicollectionview







    share|improve this question
























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I need a function, which "takes" all cells of a UICollectionView, so I can reset the backgroundColor of the cells. Is there a function with which I can do this or do I have to select all cells on their own with?:



      collectionView.cellForItem(at: indexPath)





      swift uicollectionview







      share|improve this question













      I need a function, which "takes" all cells of a UICollectionView, so I can reset the backgroundColor of the cells. Is there a function with which I can do this or do I have to select all cells on their own with?:



      collectionView.cellForItem(at: indexPath)





      swift uicollectionview




      swift uicollectionview






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 7 at 10:14









      SWIFTstuff

      135




      135
























          2 Answers
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          up vote
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          down vote













          You need to add shouldReset var and do this inside cellForRowAt



          cell.backgroundColor = shouldReset ? UIColor.red  : UIColor.blue


          whenever you need to change the color do



          collectionView.reloadData()


          and manage



          shouldReset to be true/false






          share|improve this answer




























            up vote
            0
            down vote













            Use the following property from docs.



            collectionView.visibleCells


            And iterate them:



            collectionView.visibleCells.forEach { cell in
            
    cell.backgroundColor = UIColor.blue
            
}





            share|improve this answer



















            • 1




              This should be a comment imo. If this is to be answer, you need to explain how this would solve his problem.
              – Rakesha Shastri
              Nov 7 at 10:26











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            up vote
            0
            down vote













            You need to add shouldReset var and do this inside cellForRowAt



            cell.backgroundColor = shouldReset ? UIColor.red  : UIColor.blue


            whenever you need to change the color do



            collectionView.reloadData()


            and manage



            shouldReset to be true/false






            share|improve this answer

























              up vote
              0
              down vote













              You need to add shouldReset var and do this inside cellForRowAt



              cell.backgroundColor = shouldReset ? UIColor.red  : UIColor.blue


              whenever you need to change the color do



              collectionView.reloadData()


              and manage



              shouldReset to be true/false






              share|improve this answer























                up vote
                0
                down vote










                up vote
                0
                down vote









                You need to add shouldReset var and do this inside cellForRowAt



                cell.backgroundColor = shouldReset ? UIColor.red  : UIColor.blue


                whenever you need to change the color do



                collectionView.reloadData()


                and manage



                shouldReset to be true/false






                share|improve this answer












                You need to add shouldReset var and do this inside cellForRowAt



                cell.backgroundColor = shouldReset ? UIColor.red  : UIColor.blue


                whenever you need to change the color do



                collectionView.reloadData()


                and manage



                shouldReset to be true/false







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 7 at 10:24









                Sh_Khan

                33.9k41125




                33.9k41125
























                    up vote
                    0
                    down vote













                    Use the following property from docs.



                    collectionView.visibleCells


                    And iterate them:



                    collectionView.visibleCells.forEach { cell in
                    
    cell.backgroundColor = UIColor.blue
                    
}





                    share|improve this answer



















                    • 1




                      This should be a comment imo. If this is to be answer, you need to explain how this would solve his problem.
                      – Rakesha Shastri
                      Nov 7 at 10:26















                    up vote
                    0
                    down vote













                    Use the following property from docs.



                    collectionView.visibleCells


                    And iterate them:



                    collectionView.visibleCells.forEach { cell in
                    
    cell.backgroundColor = UIColor.blue
                    
}





                    share|improve this answer



















                    • 1




                      This should be a comment imo. If this is to be answer, you need to explain how this would solve his problem.
                      – Rakesha Shastri
                      Nov 7 at 10:26













                    up vote
                    0
                    down vote










                    up vote
                    0
                    down vote









                    Use the following property from docs.



                    collectionView.visibleCells


                    And iterate them:



                    collectionView.visibleCells.forEach { cell in
                    
    cell.backgroundColor = UIColor.blue
                    
}





                    share|improve this answer














                    Use the following property from docs.



                    collectionView.visibleCells


                    And iterate them:



                    collectionView.visibleCells.forEach { cell in
                    
    cell.backgroundColor = UIColor.blue
                    
}






                    share|improve this answer














                    share|improve this answer



                    share|improve this answer








                    edited Nov 7 at 10:40

























                    answered Nov 7 at 10:22









                    Access Denied

                    4,79311441




                    4,79311441








                    • 1




                      This should be a comment imo. If this is to be answer, you need to explain how this would solve his problem.
                      – Rakesha Shastri
                      Nov 7 at 10:26














                    • 1




                      This should be a comment imo. If this is to be answer, you need to explain how this would solve his problem.
                      – Rakesha Shastri
                      Nov 7 at 10:26








                    1




                    1




                    This should be a comment imo. If this is to be answer, you need to explain how this would solve his problem.
                    – Rakesha Shastri
                    Nov 7 at 10:26




                    This should be a comment imo. If this is to be answer, you need to explain how this would solve his problem.
                    – Rakesha Shastri
                    Nov 7 at 10:26


















                     

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