title: mkannotation subtitle
body: <p>I'm trying to add mkannotation to my map, but the subtitle is not shown (or I don't know how to view it, I have an android device, and it's hard understand how the iphone works)</p>
  
  <p>This is my MapPoint.h:</p>
  
  <pre><code>@interface MapPoint : NSObject&lt;MKAnnotation&gt; {
  
  NSString *title;
  NSString *subTitle;
  CLLocationCoordinate2D coordinate;
  
  }
  
  @property (nonatomic,readonly) CLLocationCoordinate2D coordinate;
  @property (nonatomic,copy) NSString *title;
  @property (nonatomic,copy) NSString *subTitle;
  
  -(id) initWithCoordinate:(CLLocationCoordinate2D) c title:(NSString *) t subTitle:(NSString *) st;
  
  @end
  </code></pre>
  
  <p>My MapPoint.m:</p>
  
  <pre><code>@implementation MapPoint
  
  @synthesize title,coordinate,subTitle;
  
  -(id) initWithCoordinate:(CLLocationCoordinate2D)c title:(NSString*)t subTitle:(NSString *) st
  {
  coordinate = c;
  [self setTitle:t];
  [self setSubTitle:st];
  return self;
  
  }
  
  
  @end
  </code></pre>
  
  <p>And in Map.m, I have:</p>
  
  <pre><code>MapPoint *mp = [[MapPoint alloc] initWithCoordinate:pointCoord title:@"This is the title" subTitle:@"This is the subtitle"];
  [mv addAnnotation:mp];
  </code></pre>
  
  <p>I when i touch my marker, I only see "this is the title:</p>
  
  <p><img src="https://i.stack.imgur.com/DjNVt.png" alt="enter image description here"></p>
  
  <p>I suppose I have to see This is the title, and This is the subtitle with smaller font.</p>
  
  <p>Thank you in advance</p>