[TIMOB-14003] Android: showDatePickerDialog and showTimePickerDialog can't be cancelled

   var win = Ti.UI.createWindow({
       backgroundColor:'gray'
   });
    
   var picker = Ti.UI.createPicker( {
       type : Ti.UI.PICKER_TYPE_TIME
   });
     
   picker.showDatePickerDialog({
       callback: function(e) {
           if (e.cancel) {
               alert('user canceled dialog');
           } else {
               alert('user selected date: ' + e.value);
           }
       }
   });
   
   win.add(picker);
   win.open();
   

   function showTimePickerDialog(opt, callback) {
   	var picker = Ti.UI.createPicker({
   		type: Ti.UI.PICKER_TYPE_TIME,
   		format24: true,
   		value: opt.value
   	});
   	
   	var ad = Ti.UI.createAlertDialog({
   		androidView: picker,
   		title: opt.title,
   		cancel: 0,
   		buttonNames: [ '', opt.okButtonTitle ]
   	});
   	ad.addEventListener('click', function (e) {
   		console.log('e.cancel = ' + e.cancel);
   		if (!(e.index === e.source.cancel)) {
   			callback(picker.getValue());
   		}
   	});
   	ad.show();
   	
   }
   

   	showTimePickerDialog({
   		title: 'MyTitle',
   		value: new Date(),
   		okButtonTitle: 'Send',
   	},
   	function (value) {
   		Ti.API.info(value);
   	});
   

   // this sets the background color of the master UIView (when there are no windows/tab groups on it)
   Titanium.UI.setBackgroundColor('#000');
   
   // create tab group
   var tabGroup = Titanium.UI.createTabGroup();
   
   
   //
   // create base UI tab and root window
   //
   var win1 = Titanium.UI.createWindow({  
       title:'Tab 1',
       backgroundColor:'#fff'
   });
   var tab1 = Titanium.UI.createTab({  
       icon:'KS_nav_views.png',
       title:'Tab 1',
       window:win1
   });
   
   var button1 = Titanium.UI.createButton({
   	color:'#999',
   	title:'Open time picker',
   	font:{fontSize:20,fontFamily:'Helvetica Neue'},
   	textAlign:'center',
   	width:'auto'
   });
   
   win1.add(button1);
   
   button1.addEventListener('click', function() {
   	var picker = Ti.UI.createPicker( {
   	    type : Ti.UI.PICKER_TYPE_TIME
   	});
   	 
   	picker.showTimePickerDialog({
   	    callback: function(e) {
   	        if (e.cancel) {
   	            Ti.API.info('user canceled dialog');
   	        } else {
   	            Ti.API.info('user selected date: ' + e.value);
   	        }
   	    }
   	});
   });
   
   
   
   
   //
   // create controls tab and root window
   //
   var win2 = Titanium.UI.createWindow({  
       title:'Tab 2',
       backgroundColor:'#fff'
   });
   var tab2 = Titanium.UI.createTab({  
       icon:'KS_nav_ui.png',
       title:'Tab 2',
       window:win2
   });
   
   var label2 = Titanium.UI.createLabel({
   	color:'#999',
   	text:'I am Window 2',
   	font:{fontSize:20,fontFamily:'Helvetica Neue'},
   	textAlign:'center',
   	width:'auto'
   });
   
   
   
   var button2 = Titanium.UI.createButton({
   	color:'#999',
   	title:'Open date picker',
   	font:{fontSize:20,fontFamily:'Helvetica Neue'},
   	textAlign:'center',
   	width:'auto'
   });
   
   win2.add(button2);
   
   button2.addEventListener('click', function() {
   	var picker = Ti.UI.createPicker( {
   	    type : Ti.UI.PICKER_TYPE_DATE
   	});
   	 
   	picker.showDatePickerDialog({
   	    callback: function(e) {
   	        if (e.cancel) {
   	            Ti.API.info('user canceled dialog');
   	        } else {
   	            Ti.API.info('user selected date: ' + e.value);
   	        }
   	    }
   	});
   });
   
   
   //
   //  add tabs
   //
   tabGroup.addTab(tab1);  
   tabGroup.addTab(tab2);  
   
   
   // open tab group
   tabGroup.open();