Question

Is there a way to get the parameters from a XML view, modify some stuff on it and then use it as content view ?

Let’s say I have a normal LinearLayout and I want to make that work:

LinearLayout layout = (LinearLayout) findViewById(R.layout.main);
setContentView(layout);

Instead of :

setContentView(R.layout.main);

Answer 1

Yes.

To be more specific, we need more specific info from you.

Edit

You can, for example, do the following.
Say you have in your xml specification a TextView:

<RelativeLayout
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">

<TextView
    android:id="@+id/mytv"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textSize="22sp"
    android:textStyle="bold"/>

</RelativeLayout>

Now you want to center horizontal the TextView programmatically:

setContentView(R.id.main);
TextView myTV = (TextView) findViewById(R.id.mytv);
RelativeLayout.LayoutParams lp = (RelativeLayout.LayoutParams) myTV.getLayoutParams();
lp.addRule(RelativeLayout.CENTER_HORIZONTAL);
myTV.setLayoutParams(lp);

You just set the contentview at the start, and don’t need to set it again when you change the variables.