androidx.leanback.widget.Presenter Java Examples

@Override
public void onBindViewHolder(Presenter.ViewHolder viewHolder, Object item) {
    if (item instanceof Content.DataBean.WidgetsBean) {
        ViewHolder vh = (ViewHolder) viewHolder;
        Log.e(TAG, "onBindViewHolder: " + ((Content.DataBean.WidgetsBean) item).getUrl());
        Glide.with(mContext)
                .load(((Content.DataBean.WidgetsBean) item).getUrl())
                .apply(new RequestOptions()
                        .override(FontDisplayUtil.dip2px(mContext, 124),
                                FontDisplayUtil.dip2px(mContext, 207))
                        .placeholder(R.drawable.bg_shape_default))
                .into(vh.mIvPoster);
        String desc = ((Content.DataBean.WidgetsBean) item).getDesc();
        if (!TextUtils.isEmpty(desc)) {
            vh.mTvDesc.setText(desc);
        }
    }
}
 

@Override
public Presenter.ViewHolder onCreateViewHolder(ViewGroup parent) {
    if (mContext == null) {
        mContext = parent.getContext();
    }
    View view = LayoutInflater.from(mContext).inflate(R.layout.item_app_installed, parent, false);
    view.setOnFocusChangeListener(new View.OnFocusChangeListener() {
        @Override
        public void onFocusChange(View v, boolean hasFocus) {
            v.findViewById(R.id.tv_app_name).setSelected(hasFocus);
        }
    });
    return new ViewHolder(view);
}
 

@PerFragment
@Provides
@IntoMap
@ListenerModuleKey(LiveDataFragment.class)
public OnItemViewSelectedListener provideOnItemViewSelectedListener(final Activity activity,
        final DisplayMetrics metrics, final BackgroundManager backgroundManager,
        final RequestOptions defaultPlaceHolder, final Drawable finalDrawable, final Handler mainHandler) {
    return new OnItemViewSelectedListener() {
        @Override
        public void onItemSelected(Presenter.ViewHolder itemViewHolder, Object item,
                RowPresenter.ViewHolder rowViewHolder, Row row) {
            VideoEntity selectedVideo = (VideoEntity) item;
            RunnableClass backgroundRunnable = new RunnableClass(selectedVideo, activity,
                    metrics, backgroundManager, defaultPlaceHolder, finalDrawable);

            if (lastTime != null) {
                mainHandler.removeCallbacks(lastTime);
            }
            mainHandler.postDelayed(backgroundRunnable, BACKGROUND_UPDATE_DELAY);
            lastTime = backgroundRunnable;
        }
    };
}
 

@PerFragment
@Provides
PresenterSelector providePresenterSelector(final Map<Class<?>, Presenter> map) {

    return new PresenterSelector() {
        @Override
        public Presenter getPresenter(Object item) {
            Class<?> cls = item.getClass();
            return map.get(cls);
        }

        @Override
        public Presenter[] getPresenters() {
            return map.values().toArray(new Presenter[map.size()]);
        }
    };
}
 

@Override
    public Presenter.ViewHolder onCreateViewHolder(ViewGroup parent) {
        if (mContext == null) {
            mContext = parent.getContext();
        }
        View view = LayoutInflater.from(mContext).inflate(R.layout.item_type_six_layout, parent, false);
        final ViewHolder viewHolder = new ViewHolder(view);
//        view.setOnFocusChangeListener(new View.OnFocusChangeListener() {
//            @Override
//            public void onFocusChange(View v, boolean hasFocus) {
//                viewHolder.mTvDesc.setSelected(hasFocus);
//                if (hasFocus) {
//                    viewHolder.mTvDesc.setTextColor(mContext.getResources().getColor(R.color.colorBlack));
//                } else {
//                    viewHolder.mTvDesc.setTextColor(mContext.getResources().getColor(R.color.colorWhite));
//                }
//            }
//        });
        return viewHolder;
    }
 

@Override
public Presenter.ViewHolder onCreateViewHolder(ViewGroup parent) {
    if (mBrowseItemFocusHighlight == null) {
        mBrowseItemFocusHighlight =
                new MyFocusHighlightHelper
                        .BrowseItemFocusHighlight(FocusHighlight.ZOOM_FACTOR_MEDIUM, false);
    }
    if (mContext == null) {
        mContext = parent.getContext();
    }
    View view = LayoutInflater.from(mContext).inflate(R.layout.item_type_seven_layout, parent, false);
    final ViewHolder viewHolder = new ViewHolder(view);
    viewHolder.mClTypeSeven.setOnFocusChangeListener(new View.OnFocusChangeListener() {
        @Override
        public void onFocusChange(View v, boolean hasFocus) {
            if (mBrowseItemFocusHighlight != null) {
                mBrowseItemFocusHighlight.onItemFocused(v, hasFocus);
            }
            viewHolder.mClTypeSeven.onFocusChange(v, hasFocus);
        }
    });
    return viewHolder;
}
 

@Override
public void onBindViewHolder(Presenter.ViewHolder viewHolder, Object item) {
    HeaderItem headerItem = item == null ? null : ((Row) item).getHeaderItem();
    if (headerItem == null) {
        if ( viewHolder.view.findViewById(R.id.row_header) != null) {
            ((TextView)viewHolder.view.findViewById(R.id.row_header)).setText(null);
        }
        viewHolder.view.setContentDescription(null);
        viewHolder.view.setVisibility(View.GONE);

    } else {
        if (viewHolder.view.findViewById(R.id.row_header) != null) {
            ((TextView)viewHolder.view.findViewById(R.id.row_header)).setText(headerItem.getName());
        }
        viewHolder.view.setContentDescription(headerItem.getContentDescription());
        viewHolder.view.setVisibility(View.VISIBLE);
    }
}
 

public SampleFragmentB() {
    mRowsAdapter = new ArrayObjectAdapter(new ShadowRowPresenterSelector());

    setAdapter(mRowsAdapter);
    setOnItemViewClickedListener(new OnItemViewClickedListener() {
        @Override
        public void onItemClicked(
                Presenter.ViewHolder itemViewHolder,
                Object item,
                RowPresenter.ViewHolder rowViewHolder,
                Row row) {
            Toast.makeText(getActivity(), "Implement click handler", Toast.LENGTH_SHORT)
                    .show();
        }
    });
}
 

private void setupAdapter() {
    VerticalGridPresenter presenter = new VerticalGridPresenter(ZOOM_FACTOR);
    presenter.setNumberOfColumns(COLUMNS);
    setGridPresenter(presenter);

    CardPresenterSelector cardPresenter = new CardPresenterSelector(getActivity());
    mAdapter = new ArrayObjectAdapter(cardPresenter);
    setAdapter(mAdapter);

    setOnItemViewClickedListener(new OnItemViewClickedListener() {
        @Override
        public void onItemClicked(
                Presenter.ViewHolder itemViewHolder,
                Object item,
                RowPresenter.ViewHolder rowViewHolder,
                Row row) {
            Card card = (Card)item;
            Toast.makeText(getActivity(),
                    "Clicked on "+card.getTitle(),
                    Toast.LENGTH_SHORT).show();
        }
    });
}
 

@Override
public void onBindViewHolder(Presenter.ViewHolder viewHolder, Object item) {
    if (item instanceof Content.DataBean.WidgetsBean) {
        ViewHolder vh = (ViewHolder) viewHolder;
        Glide.with(mContext)
                .load(((Content.DataBean.WidgetsBean) item).getUrl())
                .apply(new RequestOptions()
                        .centerCrop()
                        .override(FontDisplayUtil.dip2px(mContext, 200),
                                FontDisplayUtil.dip2px(mContext, 111))
                        .placeholder(R.drawable.bg_shape_default))
                .into(vh.mIvTypeFourPoster);
        if (!TextUtils.isEmpty(((Content.DataBean.WidgetsBean) item).getName())) {
            vh.mIvTypeFourName.setText(((Content.DataBean.WidgetsBean) item).getName());
        }
    }
}
 

@Override
public void onBindViewHolder(Presenter.ViewHolder viewHolder, Object item) {
    if (item instanceof Content.DataBean.WidgetsBean) {
        ViewHolder vh = (ViewHolder) viewHolder;
        Glide.with(mContext)
                .load(((Content.DataBean.WidgetsBean) item).getUrl())
                .apply(new RequestOptions()
                        .centerCrop()
                        .override(FontDisplayUtil.dip2px(mContext, 272),
                                FontDisplayUtil.dip2px(mContext, 124))
                        .placeholder(R.drawable.bg_shape_default))
                .into(vh.mIvTypeFivePoster);
        if (!TextUtils.isEmpty(((Content.DataBean.WidgetsBean) item).getName())) {
            vh.mIvTypeFiveName.setText(((Content.DataBean.WidgetsBean) item).getName());
        }
        if(!TextUtils.isEmpty(((Content.DataBean.WidgetsBean) item).getDesc())){
            vh.mIvTypeFiveDesc.setText(((Content.DataBean.WidgetsBean) item).getDesc());
        }
    }
}
 

@Override
public void onItemClicked(Presenter.ViewHolder itemViewHolder, Object item,
                          RowPresenter.ViewHolder rowViewHolder, Row row) {
    if (!(item instanceof Action)) return;
    Action action = (Action) item;
    long id = action.getId();

    if (id == ACTION_RENT) {
        startWizardActivityForPayment();
    } else if (action.getId() == ACTION_PLAY) {
        playMainVideoOnBackground();
    } else if (action.getId() == ACTION_RELATED) {
        setSelectedPosition(1);
    } else {
        Toast.makeText(getActivity(), getString(R.string.action_cicked), Toast.LENGTH_LONG)
                .show();
    }
}
 

@Override
public void onBindViewHolder(Presenter.ViewHolder viewHolder, Object item) {
    VideoContent clip = (VideoContent) item;
    if (clip.getCardImageUrl() != null) {
        ImageCardView cardView = (ImageCardView) viewHolder.view;
        Resources resources = cardView.getContext().getResources();
        cardView.setTitleText(clip.getTitle());
        cardView.setContentText(clip.getDescription());
        int cardWidth = Math.round(resources.getDimensionPixelSize(R.dimen.card_width)
        );
        int cardHeight = resources.getDimensionPixelSize(R.dimen.card_height);
        cardView.setMainImageDimensions(cardWidth, cardHeight);
        Glide.with(viewHolder.view.getContext())
                .load(clip.getCardImageUrl())
                .into(cardView.getMainImageView());
    }
}
 

private void updatePresenter(List<Content.DataBean.WidgetsBean> widgetsBeanList) {
    ArrayObjectAdapter mArrayObjectAdapter = new ArrayObjectAdapter(new TypeSevenContentPresenter());
    MyItemBridgeAdapter myItemBridgeAdapter = new MyItemBridgeAdapter(mArrayObjectAdapter) {
        @Override
        public OnItemViewClickedListener getOnItemViewClickedListener() {
            return new OnItemViewClickedListener() {
                @Override
                public void onItemClicked(View focusView,
                                          Presenter.ViewHolder itemViewHolder,
                                          Object item) {

                }
            };
        }
    };
    mHorizontalGridView.setAdapter(myItemBridgeAdapter);
    mArrayObjectAdapter.addAll(0, widgetsBeanList);
}
 

private void setupUIElements() {
    setBadgeDrawable(
            getActivity().getResources().getDrawable(R.drawable.videos_by_google_banner, null));
    setTitle(getString(R.string.browse_title)); // Badge, when set, takes precedent over title
    setHeadersState(HEADERS_ENABLED);
    setHeadersTransitionOnBackEnabled(true);

    // Set fastLane (or headers) background color
    setBrandColor(ContextCompat.getColor(getActivity(), R.color.fastlane_background));

    // Set search icon color.
    setSearchAffordanceColor(ContextCompat.getColor(getActivity(), R.color.search_opaque));

    setHeaderPresenterSelector(new PresenterSelector() {
        @Override
        public Presenter getPresenter(Object o) {
            return new IconHeaderItemPresenter();
        }
    });
}
 

@Override
public void onItemClicked(
        Presenter.ViewHolder itemViewHolder,
        Object item,
        RowPresenter.ViewHolder rowViewHolder,
        Row row) {

    if (item instanceof Video) {
        Video video = (Video) item;

        Intent intent = new Intent(getActivity(), VideoDetailsActivity.class);
        intent.putExtra(VideoDetailsActivity.VIDEO, video);

        Bundle bundle =
                ActivityOptionsCompat.makeSceneTransitionAnimation(
                                getActivity(),
                                ((ImageCardView) itemViewHolder.view).getMainImageView(),
                                VideoDetailsActivity.SHARED_ELEMENT_NAME)
                        .toBundle();
        getActivity().startActivity(intent, bundle);
    }
}
 

@Override
public void onItemClicked(Presenter.ViewHolder itemViewHolder, Object item,
        RowPresenter.ViewHolder rowViewHolder, Row row) {

    if (item instanceof Video) {
        Video video = (Video) item;
        Intent intent = new Intent(getActivity(), VideoDetailsActivity.class);
        intent.putExtra(VideoDetailsActivity.VIDEO, video);

        Bundle bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(
                getActivity(),
                ((ImageCardView) itemViewHolder.view).getMainImageView(),
                VideoDetailsActivity.SHARED_ELEMENT_NAME).toBundle();
        getActivity().startActivity(intent, bundle);
    }
}
 

@Override
public void onItemClicked(Presenter.ViewHolder itemViewHolder, Object item,
        RowPresenter.ViewHolder rowViewHolder, Row row) {

    if (item instanceof Video) {
        Video video = (Video) item;
        Intent intent = new Intent(getActivity(), VideoDetailsActivity.class);
        intent.putExtra(VideoDetailsActivity.VIDEO, video);

        Bundle bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(
                getActivity(),
                ((ImageCardView) itemViewHolder.view).getMainImageView(),
                VideoDetailsActivity.SHARED_ELEMENT_NAME).toBundle();
        getActivity().startActivity(intent, bundle);
    } else {
        Toast.makeText(getActivity(), ((String) item), Toast.LENGTH_SHORT).show();
    }
}
 

@Override
public void onItemClicked(Presenter.ViewHolder itemViewHolder, Object item,
        RowPresenter.ViewHolder rowViewHolder, Row row) {

    if (item instanceof Video) {
        Video video = (Video) item;

        Intent intent = new Intent(getActivity(), VideoDetailsActivity.class);
        intent.putExtra(VideoDetailsActivity.VIDEO, video);

        Bundle bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(
                getActivity(),
                ((ImageCardView) itemViewHolder.view).getMainImageView(),
                VideoDetailsActivity.SHARED_ELEMENT_NAME).toBundle();
        getActivity().startActivity(intent, bundle);
    }
}
 

@Override
public void onBindViewHolder(Presenter.ViewHolder viewHolder, Object item) {
    Video video = (Video) item;

    ImageCardView cardView = (ImageCardView) viewHolder.view;
    cardView.setTitleText(video.title);
    cardView.setContentText(video.studio);

    if (video.cardImageUrl != null) {
        // Set card size from dimension resources.
        Resources res = cardView.getResources();
        int width = res.getDimensionPixelSize(R.dimen.card_width);
        int height = res.getDimensionPixelSize(R.dimen.card_height);
        cardView.setMainImageDimensions(width, height);

        Glide.with(cardView.getContext())
                .load(video.cardImageUrl)
                .apply(RequestOptions.errorOf(mDefaultCardImage))
                .into(cardView.getMainImageView());
    }
}
 

@Override
public Presenter.ViewHolder onCreateViewHolder(ViewGroup parent) {
    if (mContext == null) {
        mContext = parent.getContext();
    }
    View view = LayoutInflater.from(mContext).inflate(R.layout.item_type_four_layout, parent, false);
    return new ViewHolder(view);
}
 

@Override
void setFocusLevel(float level) {
    Presenter presenter = mViewHolder.getPresenter();
    if (presenter instanceof RowHeaderPresenter) {
        ((RowHeaderPresenter) presenter).setSelectLevel(
                ((RowHeaderPresenter.ViewHolder) mViewHolder.getViewHolder()), level);
    }
    super.setFocusLevel(level);
}
 

@Override
public Presenter.ViewHolder onCreateViewHolder(ViewGroup parent) {
    if (mContext == null) {
        mContext = parent.getContext();
    }
    View view = LayoutInflater.from(mContext).inflate(R.layout.item_type_five_layout, parent, false);
    return new ViewHolder(view);
}
 

@Override
public Presenter.ViewHolder onCreateViewHolder(ViewGroup parent) {
    if (mContext == null) {
        mContext = parent.getContext();
    }
    View view = LayoutInflater.from(mContext).inflate(R.layout.item_type_one_layout, parent, false);
    return new ViewHolder(view);
}
 

@Override
public void onBindViewHolder(Presenter.ViewHolder viewHolder, Object item) {
    if (item instanceof Content.DataBean.WidgetsBean) {
        ViewHolder vh = (ViewHolder) viewHolder;
        Glide.with(mContext)
                .load(((Content.DataBean.WidgetsBean) item).getUrl())
                .apply(new RequestOptions()
                        .centerCrop()
                        .override(FontDisplayUtil.dip2px(mContext, 198),
                                FontDisplayUtil.dip2px(mContext, 111))
                        .placeholder(R.drawable.bg_shape_default))
                .into(vh.mIvTypeTwoPoster);
    }
}
 

@Override
public Presenter getPresenter(Object item) {
    Class<?> cls = item.getClass();
    Presenter presenter;
    presenter = mClassSingleMap.get(cls);
    if (presenter != null) {
        return presenter;
    }
    ArrayMap<Class<?>, Presenter> presenters = mClassMap.get(cls);
    if (presenters != null) {
        if (presenters.size() == 1) {
            return presenters.valueAt(0);
        } else if (presenters.size() > 1) {
            if (item instanceof ListRow) {
                ListRow listRow = (ListRow) item;
                Presenter childPresenter = listRow.getAdapter().getPresenter(listRow);
                Class<?> childCls = childPresenter.getClass();
                do {
                    presenter = presenters.get(childCls);
                    childCls = childCls.getSuperclass();
                } while (presenter == null && childCls != null);
            } else {
                throw new NullPointerException("presenter == null, please add presenter to PresenterSelector");
            }
        }
    }
    if (presenter == null) {
        throw new NullPointerException("presenter == null, please add presenter to PresenterSelector");
    }
    return presenter;
}
 

/**
 * Adds a presenter to be used for the given class.
 * @param cls item 类型
 * @param presenter presenter
 * @param childType  当包含多个相同{@param cls}时，并且presenter不同，则通过子item{@param childType}区分
 */
public void addClassPresenter(Class<?> cls, Presenter presenter, Class<?> childType) {
    ArrayMap<Class<?>, Presenter> classPresenterArrayMap = mClassMap.get(cls);
    if (classPresenterArrayMap == null) {
        classPresenterArrayMap = new ArrayMap<>();
    }
    classPresenterArrayMap.put(childType, presenter);
    mClassMap.put(cls, classPresenterArrayMap);
    if (!mPresenters.contains(presenter)) {
        mPresenters.add(presenter);
    }
}
 

/**
 * Adds a presenter to be used for the given class.
 * @param cls item 类型
 * @param presenter  presenter
 */
public void addClassPresenter(Class<?> cls, Presenter presenter) {
    mClassSingleMap.put(cls, presenter);
    if (!mPresenters.contains(presenter)) {
        mPresenters.add(presenter);
    }
}
 

@Override
public void onUnbindViewHolder(Presenter.ViewHolder viewHolder) {
    ImageCardView cardView = (ImageCardView) viewHolder.view;

    // Remove references to images so that the garbage collector can free up memory.
    cardView.setBadgeImage(null);
    cardView.setMainImage(null);
}
 

@Override
public void onBindViewHolder(Presenter.ViewHolder viewHolder, Object item) {
    if (item instanceof Title.DataBean) {
        ViewHolder vh = (ViewHolder) viewHolder;
        vh.mTvMainTitle.setText(((Title.DataBean) item).getName());
    }

}