弹出自定义显示大小的UIViewController

EditHeadViewController *editHead = [[[EditHeadViewController alloc] init] autorelease];    //设置待显示控制器的范围    [editHead.view setFrame:CGRectMake(0, 0, 173, 108)];    //设置待显示控制器视图的尺寸    editHead.contentSizeForViewInPopover = CGSizeMake(173, 108);        UIPopoverController *popover = [[UIPopoverController alloc] initWithContentViewController:editHead];    self.editPopoverController = popover;    //设置弹出窗口尺寸    self.editPopoverController.popoverContentSize = CGSizeMake(173, 108);    [self.editPopoverController presentPopoverFromRect:CGRectMake(0, 200, 173, 108) inView:self.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];    [popover release];