How to put a variable in an Id?

Question

In my Android Studio program I would like to put a variable in my Id. The code lines in here aren't all the code lines but they are the important code lines for this question.

I created an ids.xml file and put these id's in:

<resources>
<item type="id" name="layout0" />
<item type="id" name="layout1" />
<item type="id" name="layout2" />
<item type="id" name="layout3" />
 ...
<item type="id" name="layout49" />
</resources>

And now i want to set the id to my id to an image view with the Pointer variable. It needs to become R.id.layout0.

public boolean onTouchEvent(MotionEvent event) {

ImageView ImageView1;
int pointer;

switch (action)
    {
        case MotionEvent.ACTION_DOWN:
        {
            pointer=MotionEventCompat.getActionIndex(event);
            ImageView1.setId(Integer.parseInt("R.id.layout" + pointer));

            break;
        }
}

The searches I did and what the answer could be:

ImageView1.setId(Integer.parseInt("R.id.layout" + pointer));

Or with a IdRes:

IdRes id;
...
id= "R.id.layout" + Pointer;

But they both give errors because you cant Integer.parsInt with a String and the Id Res can't be a String either.

Any way to do this?