Ti.UI.createAlertDialog androidView does not seem to work

Hi, I'm testing on real devices SO-01C, F-02E, and so on. SDK3.1.1.GA.

var view = Ti.UI.createView( {
        top : '40dp',
        width : '300dp',
        height : '150dp',
        backgroundColor : '#ff0000'
    } );
 
    Ti.UI.createAlertDialog( {
        title : 'Alert',
        message : 'test',
        buttonNames : [ 'OK' ],
        androidView: view
    } ).show( );

The code above displays a default dialog, not a customized one by androidView. How can I change the appearance of the dialog? Thanks for any info in advance!