open appstore as model view opens blank page ios - ios

Question

I am tring to open appstore page as model view inside application using following code
[NSDictionary dictionaryWithObject:#"APPID" forKey:SKStoreProductParameterITunesItemIdentifier];
SKStoreProductViewController *productViewController = [[SKStoreProductViewController alloc] init];
[self presentViewController:productViewController animated:YES completion:nil];
but when appstore is open inside application, it is opening as blank page.
Please refer screenshoot attached
I dont understand why appstore page of my app is not opening. I am passing APPID in above code.
Is there any other way to rate application without closing app ?

Answer 1

basically, something like this could help on you, after you linked the StoreKit.framework to your project. please note, it may not be working on simulator; on real device it works well.
.h
#interface UIYourViewController : UIViewController <SKStoreProductViewControllerDelegate> { }
.m
- (void)myOwnCustomMethod {
SKStoreProductViewController *_controller = [[SKStoreProductViewController alloc] init];
[_controller setDelegate:self];
[_controller loadProductWithParameters:[NSDictionary dictionaryWithObjectsAndKeys:#"364709193", SKStoreProductParameterITunesItemIdentifier, nil] completionBlock:^(BOOL result, NSError *error) {
if (result) {
[self.navigationController presentViewController:_controller animated:TRUE completion:nil];
} else {
// you can handle the error here, if you'd like to.
}
}];
}
#pragma mark - <SKStoreProductViewControllerDelegate>
- (void)productViewControllerDidFinish:(SKStoreProductViewController *)viewController {
[self dismissViewControllerAnimated:TRUE completion:nil];
}

Answer 2

In Swift 3，
import StoreKit
class DetailViewController: UIViewController {
#IBAction func onEditButton(_ sender: UIBarButtonItem) {
let vc = SKStoreProductViewController()
vc.delegate = self
present(vc, animated: true, completion: nil)
vc.loadProduct(withParameters: [SKStoreProductParameterITunesItemIdentifier: 351091731]) { (success, error) in
if !success {
print("\(error)")
}
}
}
}
extension DetailViewController: SKStoreProductViewControllerDelegate {
func productViewControllerDidFinish(_ viewController: SKStoreProductViewController) {
viewController.dismiss(animated: true, completion: nil)
}
}
Make sure SKStoreProductParameterITunesItemIdentifier's value is Number, as stated in its head file, though String value is currently OK.