ios - animation hide/show only occurring once -


im trying animation on uipicker when app runs hidden , when button pressed appear sliding buttom , when tap button again slide away. well, code once. does:

first click -> show picker, ispickerhidden = no

second click -> hides picker, ispickerhidden = yes

third click -> not anything, returns ispickerhidden = no in viewdidload declaration are;

and same fourth click doesnt return correct bool value.

ispickerhidden = yes;  [self.picker sethidden:ispickerhidden];  if(ispickerhidden == no){         [uiview beginanimations:nil context:nil];         [uiview setanimationduration:0.6];         cgrect frame = self.picker.frame;         [self.picker setframe:cgrectoffset(frame, self.picker.frame.origin.x, self.picker.frame.origin.y)];         [uiview commitanimations];         ispickerhidden = yes;         nslog(@"hidden yes");     }else if(ispickerhidden == yes) {         [uiview beginanimations:nil context:nil];         [uiview setanimationduration:0.6];         cgaffinetransform transfrom = cgaffinetransformmaketranslation(0, -200);         self.picker.transform = transfrom;         [self.picker sethidden:no];         [uiview commitanimations];         nslog(@"hidden no ");         ispickerhidden = no;     }

i know on whats problem facing, , missing. thanx

add logging frame , picker see happening...

    nslog(@"picker: %.0f, %.0f, %.0f, %.0f", self.picker.frame.origin.x, self.picker.frame.origin.y, self.picker.frame.size.width, self.picker.frame.size.height);

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