如何更改模态对话框的大小?为什么这不起作用?
SlingDialogViewController *slingDialog = [[SlingDialogViewController alloc] init];
slingDialog.modalPresentationStyle = UIModalPresentationFormSheet;
slingDialog.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
slingDialog.view.superview.frame = CGRectMake(0, 0, 900, 700);
[self presentModalViewController:slingDialog animated:YES];