iphone - Refresh tableView \ View -

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i have tab bar application , when press on 1 of tabs viewdidload called if moving tab , return previous 1 vewdidload didnt call how can know window load again?

and how can refresh view? example viewtable made logic changes , want refresh new data.

thanks.

the viewdidload method called once. method want viewwillappear, can override one.

to refresh tableview use [tableview reloaddata]


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