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What exactly is the job of NSIndexPath, What I understand is, IndexPath variable is used to refer the cell which we want to display ?:o ? But what value does it store ? I mean., What is the internal process that happen to setup an indexPath variable
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Swift version: 5.6. Index paths describe an item's position inside a table view or collection view, storing both its section and its position inside that section.
An index number identifying a row in a UITableView object in a section identified by section. section.
If you have a look at the Apple IndexPath Documentation, IndexPath has properties like row or section that are of type Int . You can use them to access an element from your array.
A list of indexes that together represent the path to a specific location in a tree of nested arrays.
It is used as a vector for referencing arrays within arrays. For example you can represent a path to array[a][b][c] using an IndexPath. Internally it is used for iPhone list views, for example a list view that allows you to select a country, then gives you an option of regions, followed by a list of cities in the said region. The indexpath to the city you selected would include the path to it through the country and region.
Specifically for UITableViews, NSIndexPath plays a slightly more expanded role. UIKit adds the row and section properties to an instance of NSIndexPath, and a class method + indexPathForRow:inSection:.
Therefore if you want to select or delete a specific row in a table, you would need to pass an instance of NSIndexPath to that table. To create that, you would use indexPathForRow:inSection to create an NSIndexPath instance.
If you have an existing NSIndexPath that you want to get info about and it's from a table view, then use its row and section properties to get the data.
If you encounter index paths outside of the table view, be careful regarding the specifics of its use. Either way, in general, it is a reference to a specific element in arrays of arrays.
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