How to customize UIAlertController with UITableView or is there any default control available like this UI in Pages app?

Question

I would like to implement a UIAlertViewController like this (Reference: Pages and Keynote app):

.

I have implemented a custom tableview and pres

Answer 1

Adding on to Leo's answer, yes, there is a private property on UIAlertController contentViewController which allows you to set a UIViewController (and it's view) as the content of the UIAlertController.

You can create a private interface to access this property without using KVO or importing a private header like so:

@interface UIAlertController (ContentViewController)
@property (nonatomic, strong) UIViewController * contentViewController;
@end

Then, layout your custom view in your content view controller's view, via Interface Builder or programmatically.

Remember that you also need to override your view controller's preferredContentSize:

- (CGSize)preferredContentSize {
    CGSize contentSize = [super preferredContentSize]; //gets the preferredContentHeight from the view, will be set depending on how much content we have
    return CGSizeMake(contentSize.width, self.view.preferredContentHeight); 
}

Note: rather than overriding the getter, Leo Natan suggests setting the preferredContentSize directly, since it is a property on UIViewController.

You can also override your view controller's view in your subclass as well, if you want.

Set up your alert as your normally would:

UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"Title" message:@"Message" 
                                                                                    preferredStyle:UIAlertControllerStyleActionSheet];

Set your custom view:

[alertController setContentViewController:[[MyContentViewController alloc] init]];

Add your actions:

[alertController addAction:[UIAlertAction actionWithTitle:@"Cancel" style:UIAlertActionStyleCancel handler:^{
                       NSLog(@"Cancel Button was pressed");
}];

Present as your normally would:

[self presentViewController:alertController animated:YES completion:nil];

More information on the private APIs of UIAlertController can be found on the iPhone Dev Wiki's article on UIAlertController.

I would also check out the private interfaces on _UIAlertControllerActionView and UIAlertAction, as well as the UIAlertActionViewRepresentation_Internal protocol.