issues with Ext.getBody when using define

[howHardCanItBe]

Hi, I use Ext.getBody().getViewSize().width to set width in several configs in some nested panels. This worked fine when I just did a simple create of the panel. When I put my panel in a define and use it later in a index.js I get the error Uncaught Error: [Ext.getBody] document.body does not exist at this point . The error makes sense, but I don't know how to work around it.

        Ext.Loader.setConfig({ enabled: true });
        Ext.require('MainPage');
        Ext.create('MainPage');

[rdougan]

Put it inside a Ext.setup or Ext.application onReady callback function. Then, when your class is created, the documents body will exist.

Ext.setup(function() {
    onReady: function() {
        Ext.create('MyClass');
    }
});