code: public SwipeBack setSwipeBackView(View view, LayoutParams params) {
  		mSwipeBackView = view;
  		mSwipeBackContainer.removeAllViews();
  		mSwipeBackContainer.addView(view, params);
  
  		notifySwipeBackViewCreated(mSwipeBackView);
  
  		return this;
  	}
docs: Set the swipe back view to an explicit view.
  
  @param view
  The swipe back view.
  @param params
  Layout parameters for the view.