MXPayViewController *pVc = [[MXPayViewController alloc] init];
pVc.modalPresentationStyle = UIModalPresentationOverFullScreen;
[self presentViewController:pVc animated:NO completion:nil];
MXPayViewController *pVc = [[MXPayViewController alloc] init];
pVc.modalPresentationStyle = UIModalPresentationOverFullScreen;
[self presentViewController:pVc animated:NO completion:nil];