用Mosby实现非ViewGroup MVP安卓视图

Question

我正在尝试用Mosby实现一个MVP Android View (而不是activity或fragment)，但是当在Android Adaptor中使用视图，并在onBindViewHolder中访问它时，presenter此时不会初始化。似乎直到onBindViewHolder完成后才调用onAttachWindow，因为presenter为空。下面是我创建的抽象类。

public abstract class MvpImageView<V extends MvpView, P extends MvpPresenter<V>>
    extends AppCompatImageView implements MvpView, ViewGroupDelegateCallback<V, P> {

  protected P presenter;
  protected ViewGroupMvpDelegate<V, P> mvpDelegate;
  private boolean retainInstance = false;

  public MvpImageView(Context context) {
    super(context);
  }

  public MvpImageView(Context context, AttributeSet attrs) {
    super(context, attrs);
  }

  public MvpImageView(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);
  }

  /**
   * Get the mvp delegate. This is internally used for creating presenter, attaching and detaching
   * view from presenter etc.
   *
   * <p><b>Please note that only one instance of mvp delegate should be used per android.view.View
   * instance</b>.
   * </p>
   *
   * <p>
   * Only override this method if you really know what you are doing.
   * </p>
   *
   * @return {@link ViewGroupMvpDelegate}
   */
  @NonNull protected ViewGroupMvpDelegate<V, P> getMvpDelegate() {
    if (mvpDelegate == null) {
      mvpDelegate = new ViewGroupMvpDelegateImpl<>(this, this, true);
    }

    return mvpDelegate;
  }

  @Override protected void onAttachedToWindow() {
    super.onAttachedToWindow();
    Log.d(getClass().getName(), "Attaching to Window");
    getMvpDelegate().onAttachedToWindow();
  }

  @Override protected void onDetachedFromWindow() {
    super.onDetachedFromWindow();
    Log.d(getClass().getName(), "Detaching from Window");
    getMvpDelegate().onDetachedFromWindow();
  }

  @SuppressLint("MissingSuperCall") @Override protected Parcelable onSaveInstanceState() {
    return getMvpDelegate().onSaveInstanceState();
  }

  @SuppressLint("MissingSuperCall") @Override
  protected void onRestoreInstanceState(Parcelable state) {
    getMvpDelegate().onRestoreInstanceState(state);
  }

  /**
   * Instantiate a presenter instance
   *
   * @return The {@link MvpPresenter} for this view
   */
  public abstract P createPresenter();

  @Override public P getPresenter() {
    return presenter;
  }

  @Override public void setPresenter(P presenter) {
    this.presenter = presenter;
  }

  @Override public V getMvpView() {
    return (V) this;
  }

  @Override public final Parcelable superOnSaveInstanceState() {
    return super.onSaveInstanceState();
  }

  @Override public final void superOnRestoreInstanceState(Parcelable state) {
    super.onRestoreInstanceState(state);
  }
}

这是基于MvpLinearLayout实现的。我在过去使用过另一个名为Moxy的MVP库，它既有onAttachToWindow的委托方法，也有onCreate的委托方法。

我可以在构造函数中添加一个调用getMvpDelegate().onAttachWindow的初始化例程，但这看起来更像是一个hack。对于在onBindViewHolder和RecyclerView中使用时如何让它工作，有什么想法吗？