[TIMOB-27169] iOS 13: Prevent modal windows from being swiped down

   var window1 = Ti.UI.createWindow({
       title: "Modal Window",
       backgroundColor: 'white'
   });
   
   var win = Ti.UI.createNavigationWindow({
       window: window1
   });
   
   var button1 = Ti.UI.createButton({
       title: 'Open Window'
   });
   
   window1.add(button1);
   
   win.open();
   
   var window2 = Ti.UI.createWindow({
       backgroundColor: 'blue'
   });
   
   var button2 = Ti.UI.createButton({
       title: 'Close Window'
   });
   
   window2.add(button2);
   
   button1.addEventListener('click', function(e){
     window2.open({
       modal:true,
       forceModal: true,
     });
   });
   
   button2.addEventListener('click', function(e){
     window2.close();
   });
   

   var win = Ti.UI.createWindow({
       backgroundColor: '#fff'
   });
    
   var btn = Ti.UI.createButton({
       title: 'Trigger'
   });
    
   var winClose = Ti.UI.createButton({
       title: 'Close'
   });
    
   btn.addEventListener('click', function() {
       var win2 = Ti.UI.createWindow({ backgroundColor: 'white' });
    
       win2.addEventListener('close', () => {
           Ti.API.warn('CLOSED')
       });
    
       var nav = Ti.UI.createNavigationWindow({
           window: win2
       });
      
       nav.add(winClose);
    
       nav.addEventListener('open', () => {
           Ti.API.warn('OPENED')
       });
    
       nav.open({ modal: true })
    
       winClose.addEventListener('click', () => {
           nav.close()
       });
    
   });
    
   win.add(btn);
   win.open();