显示模态视图- IOS

Question

我有一个函数1，它正在调用函数2来获取一些值。函数2呈现loginview，并在登录成功后对服务执行一些查询。

在function2中，我想等到呈现的视图login视图被解除。我不想在loginview的contentviewcontroller回调中做

我正在尝试下面的代码，但是它立即向前移动，即使在模态呈现视图控制器后。

请建议我如何在下面的buttonPressed函数中等待viewController被驳回。

@implementation ViewController
- (IBAction)buttonPressed:(id)sender {
    ViewController *controller = [self.storyboard instantiateViewControllerWithIdentifier:@"modelVC"];
    controller.modalPresentationStyle = UIModalPresentationCurrentContext;
    controller.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
    controller.delete = self;
    NSLog(@"before presentViewController");
    [self presentViewController:controller animated:YES completion:nil];
    NSLog(@"after presentViewController");
}

-谢谢,Manish。

Answer 1

[self dismissViewControllerAnimated:YES completion:^{
    //Put ur Code,This is implemented first and then dismiss the view controller
}];
[self presentViewController:(UIViewController *) animated:YES completion:^{
}];