public boolean removeContainerAndCancelIfNecessary(ImageContainer container){
  mContainers.remove(container);
  if (mContainers.size() == 0) {
    mRequest.cancel();
    return true;
  }
  return false;
}

public boolean removeContainerAndCancelIfNecessary ( ImageContainer container ) { mContainers . remove ( container ) ; if ( mContainers . size ( ) == 0 ) { mRequest . cancel ( ) ; return true ; } return false ; }
detatches the bitmap container from the request and cancels the request if no one is left listening .
