picker.value = win.selectedDate;

6 Answers

• It's already 2 years and it is still not possible to dynamically change value of date picker. It is sometimes quite annoying to develop in decelerator (uh eh sry I mean appcelerator).

• The Kitchen Sink demo shows how to set the default value of the picker:

  
  var value = new Date();
  value.setFullYear(2009);
  value.setMonth(0);
  value.setDate(1);
  
  var picker = Ti.UI.createPicker({
      type:Ti.UI.PICKER_TYPE_DATE,
      value:value
  });
  

• the solution is simple, but I had to give a look to the source code to get it. the API documentation is poor.

  this worked for me:

  var default_date = new Date(2010, 05, 05);
  
  var picker_date = Titanium.UI.createPicker({
    type:  Titanium.UI.PICKER_TYPE_DATE,
    value: default_date
  });
  

  you have to use the object Date of javascript, you can find a description here

  pay attention to the month and the day fieds, because indexes starts from 0.

  eg: Jun 04 2010 => new Date(2010, 05, 05);

• I'm not sure if this helps, but I've found after initializing the picker view the only way to change the value of the picker is to have initialized a 'change' EventListener:

  mPicker.addEventListener('change',function(e){});

  After adding this listener I could update the value of the data picker with:

  mPicker.value = <<some date>>;

• You can find out the perfect month view here.

  http://titaniumexplorers.blogspot.in/2012/09/titanium-calendar-month-view.html

• Even faster, supposing you are working with Alloy and have a date picker with id="date_picker".

  var value = new Date("2015-06-18");
  $.date_picker.value = value;