点击UIView上的任意位置，使UIView消失

UIView *tempView = [[UIView alloc] initWithFrame:nil];
        UITapGestureRecognizer *tap = [[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(hideView:)] autorelease];
        [tempView addGestureRecognizer:tap];
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- (void)hideView:(UIGestureRecognizer *)agesture{
agesture.view.hidden = YES;
}