Reset the view when applying MVP pattern

gistfile1.txt

/**
   * Returns the view configured in the presenter which real implementation is an Activity or
   * Fragment using this presenter.
   */
  public final T getView() {
    return view;
  }

  /**
   * Configures the View instance used in this presenter as view.
   */
  public void setView(T view) {
    this.view = view;
  }

  /**
   * Changes the current view instance with a dynamic proxy to avoid real UI updates.
   */
  void resetView() {
    final Class<?> viewClass = getViewInterfaceClass();
    InvocationHandler emptyHandler = new InvocationHandler() {
      @Override
      public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
        return null;
      }
    };
    ClassLoader classLoader = viewClass.getClassLoader();
    Class[] interfaces = new Class[1];
    interfaces[0] = viewClass;
    this.view = (T) Proxy.newProxyInstance(classLoader, interfaces, emptyHandler);
  }

  private Class<?> getViewInterfaceClass() {
    Class<?> interfaceClass = null;
    Class<?>[] interfaces = this.view.getClass().getInterfaces();
    for (int i = 0; i < interfaces.length; i++) {
      Class<?> interfaceCandidate = interfaces[i];
      if (RosiePresenter.View.class.isAssignableFrom(interfaceCandidate)) {
        interfaceClass = interfaceCandidate;
      }
    }
    return interfaceClass;
  }
  
  /**
   * Represents the View component inside the Model View Presenter pattern. This interface must be
   * used as base interface for every View interface declared.
   */
  public interface View {

  }
}