使用iOS中的深层链接检查应用程序版本

Question

How can we check current installed version of our app using deep linking in iOS, so that we can prompt user to upgrade the app. From safari browser, I want to navigate to app. But as per requirement, I need to check installed version of the app. If previous version is installed, we need to prompt user to update the app.

Answer 1

you can get as

The value you set in the Xcode target summary's "Version" field is in here:

ObjC

NSString *Currentversion = [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleShortVersionString"];

To get the build number as a NSString variable:

NSString * CurrentbuildNo = [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleVersion"];

For Example

You could probably do like this:

- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation
{

    NSString* appIDe = [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleIdentifier"]; 
    NSURL* getpath = [NSURL URLWithString:[NSString stringWithFormat:@"http://itunes.apple.com/lookup?bundleId=%@", appIDe]];
    NSData* JSONdata = [NSData dataWithContentsOfURL:getpath];
    NSDictionary* JSonDiCt = [NSJSONSerialization JSONObjectWithData:JSONdata options:0 error:nil];

    if ([JSonDiCt[@"resultCount"] integerValue] == 1){
        NSString* currentappStoreVersion = JSonDiCt[@"results"][0][@"version"];
        NSString* currentVersiononApp = infoDictionary[@"CFBundleShortVersionString"];
        if (![currentappStoreVersion isEqualToString:currentVersiononApp]){
            NSLog(@"Need to update");
            return YES;
        }else
        {

          //Continue your Work
  }
    }

    return YES;;
}

for more reference