[TIMOB-19763] iOS: Support item-specific peek for previewContext on ListView

   preview: function(e) {
     var item = list.getItemAt(e.sectionIndex, e.itemIndex);
     var imageView = Ti.UI.createImageView({image: item.data.image});
   
     return imageView;
   }
   

   var win = Ti.UI.createWindow({
       backgroundColor: "white"
   });
   
   // The view to be previewed while popping.
   var previewView = Ti.UI.createView({
       backgroundColor: "blue"
   });
   var lbl = Ti.UI.createLabel({
   	text:'a',
   	color:'#ffffff'
   });
   previewView.add(lbl);
   
   // The window to be opened after popping the preview.
   var detailWindow = Ti.UI.createWindow({
       backgroundColor: "yellow"
   });
   
   detailWindow.add(Ti.UI.createLabel({
       text: "You made it!"
   }));
   
   
   // Create the preview context
   var context = Ti.UI.iOS.createPreviewContext({
       preview: previewView,
       contentHeight: 300, // When unspecified, we use the available height
       pop: function(e) { // Called after popping the preview
           //Something
       }
   });
   
   // Assign the preview context
   var table = Ti.UI.createTableView({
       previewContext: context, // Will be ignored on unsupported devices
   });
   
   //MAGIC
   table.addEventListener("touchstart", function(e) {
   	lbl.text = e.row.title;
   });
   
   
   var items = [];
   
   for(var i = 1; i <= 5; i++) {
       items.push(
           Ti.UI.createTableViewRow({
           	title:i+"a"
           })
       );
   }
   
   
   table.data = items;
   
   win.add(table);
   win.open();
   

   var actions = [];
   var win = Ti.UI.createWindow({
       backgroundColor: "white"
   });
   
   // The view to be previewed while popping.
   var previewView = Ti.UI.createView({
       backgroundColor: "blue"
   });
   
   // The window to be opened after popping the preview.
   var detailWindow = Ti.UI.createWindow({
       backgroundColor: "yellow"
   });
   
   detailWindow.add(Ti.UI.createLabel({
       text: "You made it!"
   }));
   
   // The actions to be added to the preview context.
   var action = Ti.UI.iOS.createPreviewAction({
       title: "Preview Action",
       style: Ti.UI.iOS.PREVIEW_ACTION_STYLE_DEFAULT
   });
   
   action.addEventListener("click", function(e) {
     Ti.API.warn(e);
       alert(
           "Title: " + e.title +
           "\nStyle: " + e.style +
           "\nIndex: " + e.index +
           "\nSectionIndex: " + e.sectionIndex +
           "\nItemIndex: " + e.itemIndex
       );
   });
   
   actions.push(action);
   
   // Create the preview context
   var context = Ti.UI.iOS.createPreviewContext({
       preview: previewView,
       actions: actions, // Can have both Ti.UI.iOS.PreviewAction + Ti.UI.iOS.PreviewActionGroup
       contentHeight: 300 // When unspecified, we use the available height
   });
   
   context.addEventListener("peek", function(e) {
     Ti.API.warn("Peek");
     Ti.API.warn(e);
   });
   
   context.addEventListener("pop", function(e) {
     Ti.API.warn("Pop");
     Ti.API.warn(e);
   });
   
   // Assign the preview context
   var listView = Ti.UI.createListView({
       previewContext: context, // Will be ignored on unsupported devices
   });
   
   var sections = [];
   
   for(var i = 1; i <= 2; i++) {
     var items = [];
     var section = Ti.UI.createListSection({
         headerTitle: "Section " + i
     });
     for(var j = 1; j <= 5; j++) {
         items.push({
             properties: {
                 itemId: "test" + i + j,
                 title: "Cell #" + j
             }
         });
     }
     section.setItems(items);
     sections.push(section);
   }
   listView.setSections(sections);
   
   win.add(listView);
   win.open();