4 Answers

• You should be able to dynamically change the image via imageView.url = '../images/whatever.png';. There's an example of this in the current Kitchen Sink.

• Not exactly, i'm using the imageview image property

  image:theImage

  pulling from a photo picker or camera, so the url property isn't helping, any other ideas?

• Hi Christopher,

  Today I finally worked out a solution for a similar problem. Because the imageview is acumulating new images (stacking new images on top of older ones) it has to be reset before a new image is added to the imageview. So I did the following:

  I changed:

  var filename = 'myImage.png';
  savedfile = Titanium.Filesystem.getFile(Titanium.Filesystem.applicationDataDirectory, filename);
  
  var imageView = Titanium.UI.createImageView({width:300});
  imageView.image = savedfile;
  

  into:

  var filename = 'myImage.png';
  savedfile = Titanium.Filesystem.getFile(Titanium.Filesystem.applicationDataDirectory, filename)
  
  var imageView = Titanium.UI.createImageView({width:300});
  imageView.url = '../images/transp.png';
  imageView.image = savedfile;
  

  Where the line: - imageView.url = '../images/transp.png'; - connects to an .png image which is 10 X 10 px and completely transparent.

  So before you set the image property of the imageview, you "empty" it by first overwriting the image property with a transparent .png file. After that you can set the image property to another image…even semitransparent ones.

  Good luck!

• Set the property to null.

  In my project, I set the properties on a object by classing them in another object, called by a function, for example, I have an object:

  stdLabel : {
      left: '2%'',
      height: '5%'
  }
  

  I call a function to create a label as so: var myLabel = createLabel('stdLabel')
  This returns a label variable created through Ti.UI.createLabel(this[className])

  Bascially, I had a problem on orientation change that a right property I had set on the landscape version needed to be removed when switching back to portrait:

          Login_vehicleDDL : {
              obsRestyle : true,
              top : '45%',
              width : 'auto'
          },
          Login_vehicleDDL_land : {
              obsRestyle : true,
              top : '60%',
              right : '2%',
              width : '48%'
          },
  

  Note no right property on the first class.

  The restyling event and the function I wrote does the work of resetting all the properties on a UI object (in this case the DDL) to the values in the class object, but as there's no property right in the class, it doesn't get reset, leaving me with a malaligned DDL

  Solution:

          Login_vehicleDDL : {
              obsRestyle : true,
              top : '45%',
              right : null,
              width : 'auto'
          },
          Login_vehicleDDL_land : {
              obsRestyle : true,
              top : '60%',
              right : '2%',
              width : '48%'
          },
  

  Adding the null value to the property sets the property of the label to null, which is then ignored by the titanium formatter.

  What a pain to find, but a very simple solution.