How to save the value of indexpath.row

I have a problem in my code. I have an application TabBar controller, with 2 tabs. The first tab is a map, and the second a list of cities(table view). When I click in a city, the application center the map in the city that I selected. So far so good. My problem is that I have a refresh button on the mapview, and I want that, when I click on it can refresh the last city that I selected. I thought I could do it by getting the value of indexpath.row in my list of cities. But I do not know how, a开发者_运维百科nd if it's a good idea.

Any suggestions? Thanks

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Of course you could store the row value into some member variable, like indexOfLastCitySelected, for later access. But I wouldn't do it this way, maybe later you'll add some filter mechanisms which may change the amount of cities visible in the tableview so that the same city will have another row index.

I suppose you have some datasource that you populate your list from - I'd either check which item from the datasource is the last selected city and then keep a reference or an index value (only use index if the datasource itself is static).

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You would have been showing cities with the help of an array, if that is the case you should make a class level NSInteger and save your indexpath.row in that.