I have seen numerous examples for how to use a custom cell in a UiTableView to list data in columns. What I want to know is, what is a good way to interact with this kind of table so that the user can choose a column for sorting?
For example, say there are three columns, a, b, and c. By default, the data are displayed with the contents sort so that column a is ascending. If the user {does something} then the table re-sorts and displays the data sorted with either column b or column c ascending, etc.
Note that I am not asking how to sort my data, create a data structure, or format the table once I know which column to sort with. I am only asking what is the best user interaction for indicating to sort with column x?