iphone - How to animate UITableView header view -


i need animate insertion of tableview header view. want table rows slide down while header view expands frame.
far best result got using following code: 

[self.tableview beginupdates];   [self.tableview settableheaderview:self.someheaderview];   [self.tableview endupdates];

the problem solution header doesn't animated, frame doesn't expand.

so effect i'm getting table rows slide down (as want) header view shown, , want expand it's frame animation.

any ideas?

thanks.

have header frame @ cgrectzero , set frame using animation 

[self.tableview beginupdates];   [self.tableview settableheaderview:self.someheaderview];    [uiview animatewithduration:.5f animations:^{   cgrect theframe = somebigger.frame;   someheaderview.frame = theframe; }];  [self.tableview endupdates];

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