Code before setContentView trouble

Question

My question is if it is possible to write code before setContentView() in the onCreate() method of the main Activity. In the code below I

Answer 1

The setContentView() method sets the content of your XML file as the View, which is shown by the Activity.

You're calling setVariables() before you've specified any View to be shown.

That's why the error raises. The compiler doesn't know where that View belongs to. If you want to use a ResourceView, you have to set it first.