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Check AppStore if an update for app is available.
-(void) checkForAppUpdate{
BOOL updateAvailable = NO;
NSDictionary* infoDictionary = [[NSBundle mainBundle] infoDictionary];
NSString* appID = infoDictionary[@"CFBundleIdentifier"];
NSURL* url = [NSURL URLWithString:[NSString stringWithFormat:@"http://itunes.apple.com/lookup?bundleId=%@", appID]];
NSData* data = [NSData dataWithContentsOfURL:url];
NSDictionary* lookup = [NSJSONSerialization JSONObjectWithData:data options:0 error:nil];
if ([lookup[@"resultCount"] integerValue] == 1){
NSString* appStoreVersion = lookup[@"results"][0][@"version"];
NSString* currentVersion = infoDictionary[@"CFBundleShortVersionString"];
if (![appStoreVersion isEqualToString:currentVersion]){
//NSLog(@"Need to update [%@ != %@]", appStoreVersion, currentVersion);
updateAvailable = YES;
NSString * appITunesItemIdentifier = lookup[@"results"][0][@"trackId"];
[self openStoreProductViewControllerWithITunesItemIdentifier:[appITunesItemIdentifier intValue]];
}
}
updateAvailable = NO;
}
- (void)openStoreProductViewControllerWithITunesItemIdentifier:(NSInteger)iTunesItemIdentifier {
SKStoreProductViewController *storeViewController = [[SKStoreProductViewController alloc] init];
storeViewController.delegate = self;
NSNumber *identifier = [NSNumber numberWithInteger:iTunesItemIdentifier];
NSDictionary *parameters = @{ SKStoreProductParameterITunesItemIdentifier:identifier };
UIViewController *viewController = self.window.rootViewController;
[storeViewController loadProductWithParameters:parameters
completionBlock:^(BOOL result, NSError *error) {
if (result)
[viewController presentViewController:storeViewController
animated:YES
completion:nil];
else NSLog(@"SKStoreProductViewController: %@", error);
}];
}
#pragma mark - SKStoreProductViewControllerDelegate
- (void)productViewControllerDidFinish:(SKStoreProductViewController *)viewController {
[viewController dismissViewControllerAnimated:YES completion:nil];
}
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