viaLondon的部落格

-(void)checkVersion
{

NSString *myAppCurrentVersion = [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleShortVersionString"];
//NSString *myAppCurrentBuild = [[[NSBundle mainBundle] infoDictionary] objectForKey:(NSString*)kCFBundleVersionKey];

// Asynchronously query iTunes AppStore for publically available version
NSString *storeString = [NSString stringWithFormat:@"http://itunes.apple.com/lookup?id=%d", APP_ID];
NSURL *storeURL = [NSURL URLWithString:storeString];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:storeURL];
[request setHTTPMethod:@"GET"];
NSOperationQueue *queue = [[NSOperationQueue alloc] init];
[NSURLConnection sendAsynchronousRequest:request queue:queue completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) {

if ( [data length] > 0 && !error ) { // Success

    NSDictionary *appData = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:nil];
    dispatch_async(dispatch_get_main_queue(), ^{
    // All versions that have been uploaded to the AppStore

    NSArray *versionsInAppStore = [[appData valueForKey:@"results"] valueForKey:@"version"];
    if ( ![versionsInAppStore count] ) { // No versions of app in AppStore
        return;
    } else {
        //[[NSNotificationCenter defaultCenter]postNotificationName:@"checkCurrentVersion" object:currentAppStoreVersion];
        NSString *currentAppStoreVersion = [versionsInAppStore objectAtIndex:0];
        NSLog(@"currentAppStoreVersion = %@", currentAppStoreVersion);

        if ([myAppCurrentVersion compare:currentAppStoreVersion options:NSNumericSearch] == NSOrderedAscending) {
            // Upgrade notification.
            UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"RPS Upgrade Notification"
            message:[NSString stringWithFormat:@"新版本 %@ 可用，請更新版本。", currentAppStoreVersion]
            delegate:self
            cancelButtonTitle:@"取消"
            otherButtonTitles:@"更新", nil];

            [alertView show];
         } else {
            // Current installed version is the newest public version or newer
            //[[NSNotificationCenter defaultCenter]postNotificationName:@"checkCurrentVersion" object:@""];
         }
    }
    });
}
}];

}

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:[NSString stringWithFormat:@"itms-apps://itunes.apple.com/app/id%d", APP_ID]]];

}