title: installMapPackages of Current city
body: <p>I read this doc
  <a href="https://developer.here.com/mobile-sdks/documentation/ios-premium/topics/maps-offline.html" rel="nofollow noreferrer">https://developer.here.com/mobile-sdks/documentation/ios-premium/topics/maps-offline.html</a></p>
  
  <p><strong>installMapPackages</strong>. ---> It is installing all map But I need to install map particular city <strong>How to use this code for particular city.</strong></p>
  
  <p>NMAMapPackage* root = self.mapLoader.rootPackage;</p>
  
  <p>Ex- I am from India I need to download particular city map. Than How to download the particular city map.</p>
  
  <pre><code> -(void)startInstall
  {
  
   NMAMapPackage* root = self.mapLoader.rootPackage;
   [self refreshMapPackageTableWithArray:(NSMutableArray*)root.children];
  }
  - (void)refreshMapPackageTableWithArray:(NSMutableArray*)mapPackages
  {
  self.currentPackages = mapPackages;
  
  NSArray *packageArray = [[NSArray alloc]
                           initWithObjects: self.currentPackages, nil];
  [[NMAMapLoader sharedMapLoader]installMapPackages:packageArray];
  
  }
  </code></pre>