5 Answers

• Accepted Answer

  I manage this by doing the following, everytime you open a new window, pass a pointer to the 'old' window with it like this:

  Titanium.UI.createWindow({
      url:'somenewcode.js',
      title:'your new window',
      oldWin:Ti.currentWindow // this gets you a pointer
  });
  

  In the 'new' window you can 'close' this by calling : 'Ti.currentWindow.oldWin.close()'
  With this knowledge, you can make a 'go to root window' function by checking for oldWin's in the windows.
  I've made it like this:

  if(Ti.currentWindow.oldWin.oldWin.oldWin) { // 4 windows deep
      Ti.currentWindow.oldWin.oldWin.oldWin.close();
  }
  if(Ti.currentWindow.oldWin.oldWin) { // 3 windows deep
      Ti.currentWindow.oldWin.oldWin.close();
  }
  if(Ti.currentWindow.oldWin) { // 2 windows deep
      Ti.currentWindow.oldWin.close();
  }
  Ti.currentWindow.close(); // 1 window deep
  

  It looks dirty (and it probably is), but it gets the job done.

• Apple's docs include the following tidbit:

  User taps always display the root view of the tab, regardless of which tab was previously selected. This is true even if the tab was already selected.

  So you should be able to achieve your goal by emulating a click on the tab icon, eg:

  tabGroup.setActiveTab(0);

  or:

  Ti.UI.currentTab.fireEvent('click');

  Not tested.

• That post is old, but I've found a little beautiful trick.

  Write this code in all windows, modals, etc

  window.addEvent('backToFirstWindow', function ( ) {
      Ti.API.tabGroup.getActiveTab().close();
  }
  

  When you want go back to first window, you dispatch a event like this:

  Ti.API.fireEvent("backToFirstWindow");
  

  The event will bubble until your first window.

• typing oldwin a bunch of times seems silly:

  function closeStack(win) {
      if (win == null) {
          return;
      }
      closeStack(win.oldwin);
      win.close();
  }
  

  uses recursion to close the windows off the stack in order.

• I feel like this may be a more efficient/reusable method than the accepted answer:

  Also, to Alex Shah, why use recursion on something so simple? No need to create so many objects. Just use a loop.

  My approach:

  function toRootPage() {
      while(Ti.UI.currentWindow.oldwin) {
          Ti.UI.currentWindow.close();
      }
  }