-(void)viewWillDisappear:(BOOL)animated
{
? ? [superviewWillDisappear:animated];
?? ?[self.timer invalidate];
? ? self.timer=nil;
}
-(void)viewWillDisappear:(BOOL)animated
{
? ? [superviewWillDisappear:animated];
?? ?[self.timer invalidate];
? ? self.timer=nil;
}