[TIMOB-12582] iOS: Adding custom views in the pin

   var win = Titanium.UI.createWindow();
   
   
   var myView1 = Ti.UI.createView({
       width:Ti.UI.SIZE,
       height:Ti.UI.SIZE,
       backgroundColor:'red',
       layout:'vertical'
   });
   
   var label = Ti.UI.createLabel({
       text:" $400K ",
       font:{fontSize:14, fontWeight:"bold", fontStyle:"italic"}
   })
   
   var clickHandler = function(e){
       Ti.API.info('Custom View CLICKED');
   }
   label.addEventListener('click',clickHandler)
   
   myView1.add(label)
   
   var mountainView = Titanium.Map.createAnnotation({
       latitude:37.390749,
       longitude:-122.081651,
       title:"Appcelerator Headquarters",
       subtitle:'Mountain View, CA',
       pincolor:Titanium.Map.ANNOTATION_RED,
       customView:myView1,
       animate:true,
       leftButton: 'images/atlanta.jpg',
       myid:1 // Custom property to uniquely identify this annotation.
   });
   
   var mapview = Titanium.Map.createView({
       mapType: Titanium.Map.STANDARD_TYPE,
       region: {latitude:37.390749, longitude:-122.081651, 
               latitudeDelta:0.01, longitudeDelta:0.01},
       animate:true,
       regionFit:true,
       userLocation:true,
       annotations:[mountainView],
       top:0,
       height:'80%'
   });
   
   win.add(mapview);
   // Handle click events on any annotations on this map.
   mapview.addEventListener('click', function(evt) {
   
       Ti.API.info("Annotation " + evt.title + " clicked, id: " + evt.annotation.myid);
   
       // Check for all of the possible names that clicksouce
       // can report for the left button/view.
       if (evt.clicksource == 'leftButton' || evt.clicksource == 'leftPane' ||
           evt.clicksource == 'leftView') {
           Ti.API.info("Annotation " + evt.title + ", left button clicked.");
       }
   });
   
   var b1 = Ti.UI.createButton({
       title:'Add Text',
       left:0,
       bottom:0
   })
   
   win.add(b1);
   
   b1.addEventListener('click',function(){
       var l = Ti.UI.createLabel({text:'More Text',font:{fontSize:14, fontWeight:"bold", fontStyle:"italic"}});
       l.addEventListener('click',clickHandler);
       myView1.add(l);
   })
   
   win.open();