list.setOnDetectScrollListener(new OnDetectScrollListener() {

			@Override
			public void onUpScrolling() {
				// TODO Auto-generated method stub
				mBottom.setVisibility(View.VISIBLE);
			}

			@Override
			public void onDownScrolling() {
				// TODO Auto-generated method stub
				mBottom.setVisibility(View.GONE);
			}

			@Override
			public void onBottomScrolled() {
				// TODO Auto-generated method stub
				mBottom.setVisibility(View.VISIBLE);
			}

			@Override
			public void onTopScrolled() {
				// TODO Auto-generated method stub
				mBottom.setVisibility(View.VISIBLE);
			}

		});