presentViewController透明背景在iPad 4上不起作用

Question

I try to open a popup with a transparent background so that we can see the screen behind the popup. I use this code :

- (void)presentErrorMessageVC:(NSString *)message {

// Get error message vc
S6ErrorMessageVC *vc = [[S6ErrorMessageVC alloc] initWithNibName:@"S6ErrorMessageVC" bundle:nil message:message];

if (vc) {
    // Set delegate
    vc.delegate = self;

    // Present error message vc
    [self presentViewController:vc animated:NO completion:nil];
}
}

Which works perfectly, except for ipad 4, where the background is black. I've also tried to add

vc.view.backgroundColor = [UIColor clearColor];

But still the background is black... Any idea? Thx

Answer 1

这可以帮助您解决问题。

vc.modalPresentationStyle = UIModalPresentationCurrentContext;