BrowseFragmentの項目をAndroid TVの

Question

に追加しました。アンドロイドテレビジョンのleanbackライブラリのサンプルプロジェクトを参考にしました。

私の質問は、Android TVのBrowseFragmentヘッダーの検索ボタンと共に項目（Button、ImageView、TextViewなど）を追加する方法です。

以下のコードをコメントアウトして検索ボタンを非表示にすることはできますが、検索ボタンとともにアイテムを追加することはできません。

setOnSearchClickedListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      Intent intent = new Intent(getActivity(), SearchActivity.class); 
      startActivity(intent); 
     } 
    }); 

Answer 1

は私はわからないが、私は、あなたがブラウズフラグメントをカスタマイズする必要があると思います。 拡張することができますフラグメントをJavaクラスでブラウズしてから をカスタマイズするか、見えなくするようにしてください。 行断片およびヘッダー部分をカスタマイズし、カスタムフレームレイアウトを作成することができます。

activity_main.xml

<android.support.v17.leanback.widget.SearchOrbView 
     android:id="@+id/custom_search_orb" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_marginTop="27dp" 
     android:layout_marginLeft="56dp" 
     android:layout_gravity="top|left" 
     android:visibility="gone"/> 

    <Button 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="hello"/> 

    <FrameLayout 
     android:id="@+id/header_container" 
     android:layout_width="wrap_content" 
     android:layout_height="match_parent" 
     android:layout_gravity="top|left" /> 

    <FrameLayout 
     android:id="@+id/rows_container" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     android:layout_gravity="top|left" 
     android:layout_marginLeft="300dp" /> 

</com.ttnd.androidtv.views.CustomFrameLayout>` 

CustomRowFragment.java

import android.app.LoaderManager; 
    import android.content.Intent; 
    import android.content.Loader; 
    import android.graphics.Color; 
    import android.os.Bundle; 
    import android.support.v17.leanback.app.RowsFragment; 
    import android.support.v17.leanback.widget.ArrayObjectAdapter; 
    import android.support.v17.leanback.widget.HeaderItem; 
    import android.support.v17.leanback.widget.ImageCardView; 
    import android.support.v17.leanback.widget.ListRow; 
    import android.support.v17.leanback.widget.ListRowPresenter; 
    import android.support.v17.leanback.widget.OnItemViewClickedListener; 
    import android.support.v17.leanback.widget.Presenter; 
    import android.support.v17.leanback.widget.Row; 
    import android.support.v17.leanback.widget.RowPresenter; 
    import android.support.v4.app.ActivityOptionsCompat; 
    import android.telecom.Connection; 
    import android.util.TypedValue; 
    import android.view.LayoutInflater; 
    import android.view.View; 
    import android.view.ViewGroup; 
    import com.Utils; 
    import com.example.ttnd.demoapptv.R; 
    import com.ttnd.androidtv.models.Movie; 
    import com.ttnd.androidtv.presenter.CardPresenter; 

    import java.util.HashMap; 
    import java.util.List; 
    import java.util.Map; 
    import java.util.Random; 


    public class CustomRowsFragment extends RowsFragment { 

     private ArrayObjectAdapter rowsAdapter; 

     private static String mVideosUrl; 

     // CustomHeadersFragment, scaled by 0.9 on a 1080p screen, is 600px wide. 
     // This is the corresponding dip size. 
     private static final int HEADERS_FRAGMENT_SCALE_SIZE = 300; 

     @Override 
     public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 
      View v = super.onCreateView(inflater, container, savedInstanceState); 

      int marginOffset = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, HEADERS_FRAGMENT_SCALE_SIZE, getResources().getDisplayMetrics()); 
      ViewGroup.MarginLayoutParams params = (ViewGroup.MarginLayoutParams) v.getLayoutParams(); 
      params.rightMargin -= marginOffset; 
      v.setLayoutParams(params); 


      rowsAdapter = new ArrayObjectAdapter(new ListRowPresenter()); 
      CardPresenter cardPresenter = new CardPresenter(); 
       ArrayObjectAdapter listRowAdapter = new ArrayObjectAdapter(cardPresenter); 

        listRowAdapter.add(new Movie()); 

       HeaderItem header = new HeaderItem(0, ""); 

       rowsAdapter.add(new ListRow(header, listRowAdapter)); 

      setAdapter(rowsAdapter); 

      //v.setBackgroundColor(getRandomColor()); 
      return v; 
     } 



     private void loadVideoData() { 

     } 


     private int getRandomColor() { 
      Random rnd = new Random(); 
      return Color.argb(255, rnd.nextInt(256), rnd.nextInt(256), rnd.nextInt(256)); 
     } 

     public void refresh() { 
      getView().setPadding(Utils.convertDpToPixel(getActivity(), -24), Utils.convertDpToPixel(getActivity(), 128), Utils.convertDpToPixel(getActivity(), 300), 0); 
     } 

    } 

CustomHeaderFragment.java

package android.support.v17.leanback.app; 

    import android.content.Context; 
    import android.graphics.Color; 
    import android.graphics.drawable.Drawable; 
    import android.graphics.drawable.GradientDrawable; 
    import android.os.Bundle; 
    import android.support.v17.leanback.R; 
    import android.support.v17.leanback.widget.FocusHighlightHelper; 
    import android.support.v17.leanback.widget.ItemBridgeAdapter; 
    import android.support.v17.leanback.widget.PresenterSelector; 
    import android.support.v17.leanback.widget.OnItemViewSelectedListener; 
    import android.support.v17.leanback.widget.Row; 
    import android.support.v17.leanback.widget.RowHeaderPresenter; 
    import android.support.v17.leanback.widget.SinglePresenterSelector; 
    import android.support.v17.leanback.widget.VerticalGridView; 
    import android.support.v7.widget.RecyclerView; 
    import android.util.TypedValue; 
    import android.view.View; 
    import android.view.ViewGroup; 
    import android.view.View.OnLayoutChangeListener; 
    import android.widget.FrameLayout; 

    public class HeadersFragment extends BaseRowFragment { 

     interface OnHeaderClickedListener { 
      void onHeaderClicked(); 
     } 

     interface OnHeaderViewSelectedListener { 
      void onHeaderSelected(RowHeaderPresenter.ViewHolder viewHolder, Row row); 
     } 

     private OnHeaderViewSelectedListener mOnHeaderViewSelectedListener; 
     private OnHeaderClickedListener mOnHeaderClickedListener; 
     private boolean mHeadersEnabled = true; 
     private boolean mHeadersGone = false; 
     private int mBackgroundColor; 
     private boolean mBackgroundColorSet; 

     private static final PresenterSelector sHeaderPresenter = new SinglePresenterSelector(
       new RowHeaderPresenter(R.layout.lb_header)); 

     public HeadersFragment() { 
      setPresenterSelector(sHeaderPresenter); 
     } 

     public void setOnHeaderClickedListener(OnHeaderClickedListener listener) { 
      mOnHeaderClickedListener = listener; 
     } 

     public void setOnHeaderViewSelectedListener(OnHeaderViewSelectedListener listener) { 
      mOnHeaderViewSelectedListener = listener; 
     } 

     @Override 
     VerticalGridView findGridViewFromRoot(View view) { 
      return (VerticalGridView) view.findViewById(R.id.browse_headers); 
     } 

     @Override 
     void onRowSelected(RecyclerView parent, RecyclerView.ViewHolder viewHolder, 
       int position, int subposition) { 
      if (mOnHeaderViewSelectedListener != null) { 
       if (viewHolder != null && position >= 0) { 
        Row row = (Row) getAdapter().get(position); 
        ItemBridgeAdapter.ViewHolder vh = (ItemBridgeAdapter.ViewHolder) viewHolder; 
        mOnHeaderViewSelectedListener.onHeaderSelected(
          (RowHeaderPresenter.ViewHolder) vh.getViewHolder(), row); 
       } else { 
        mOnHeaderViewSelectedListener.onHeaderSelected(null, null); 
       } 
      } 
     } 

     private final ItemBridgeAdapter.AdapterListener mAdapterListener = 
       new ItemBridgeAdapter.AdapterListener() { 
      @Override 
      public void onCreate(ItemBridgeAdapter.ViewHolder viewHolder) { 
       View headerView = viewHolder.getViewHolder().view; 
       headerView.setOnClickListener(new View.OnClickListener() { 
        @Override 
        public void onClick(View v) { 
         if (mOnHeaderClickedListener != null) { 
          mOnHeaderClickedListener.onHeaderClicked(); 
         } 
        } 
       }); 
       headerView.setFocusable(true); 
       headerView.setFocusableInTouchMode(true); 
       if (mWrapper != null) { 
        viewHolder.itemView.addOnLayoutChangeListener(sLayoutChangeListener); 
       } else { 
        headerView.addOnLayoutChangeListener(sLayoutChangeListener); 
       } 
      } 

     }; 

     private static OnLayoutChangeListener sLayoutChangeListener = new OnLayoutChangeListener() { 
      @Override 
      public void onLayoutChange(View v, int left, int top, int right, int bottom, 
       int oldLeft, int oldTop, int oldRight, int oldBottom) { 
       v.setPivotX(v.getLayoutDirection() == View.LAYOUT_DIRECTION_RTL ? v.getWidth() : 0); 
       v.setPivotY(v.getMeasuredHeight()/2); 
      } 
     }; 

     @Override 
     int getLayoutResourceId() { 
      return R.layout.lb_headers_fragment; 
     } 

     @Override 
     public void onViewCreated(View view, Bundle savedInstanceState) { 
      super.onViewCreated(view, savedInstanceState); 
      final VerticalGridView listView = getVerticalGridView(); 
      if (listView == null) { 
       return; 
      } 
      if (getBridgeAdapter() != null) { 
       FocusHighlightHelper.setupHeaderItemFocusHighlight(listView); 
      } 
      view.setBackgroundColor(getBackgroundColor()); 
      updateFadingEdgeToBrandColor(getBackgroundColor()); 
      updateListViewVisibility(); 
     } 

     private void updateListViewVisibility() { 
      final VerticalGridView listView = getVerticalGridView(); 
      if (listView != null) { 
       getView().setVisibility(mHeadersGone ? View.GONE : View.VISIBLE); 
       if (!mHeadersGone) { 
        if (mHeadersEnabled) { 
         listView.setChildrenVisibility(View.VISIBLE); 
        } else { 
         listView.setChildrenVisibility(View.INVISIBLE); 
        } 
       } 
      } 
     } 

     void setHeadersEnabled(boolean enabled) { 
      mHeadersEnabled = enabled; 
      updateListViewVisibility(); 
     } 

     void setHeadersGone(boolean gone) { 
      mHeadersGone = gone; 
      updateListViewVisibility(); 
     } 

     static class NoOverlappingFrameLayout extends FrameLayout { 

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

      @Override 
      public boolean hasOverlappingRendering() { 
       return false; 
      } 
     } 


     private final ItemBridgeAdapter.Wrapper mWrapper = new ItemBridgeAdapter.Wrapper() { 
      @Override 
      public void wrap(View wrapper, View wrapped) { 
       ((FrameLayout) wrapper).addView(wrapped); 
      } 

      @Override 
      public View createWrapper(View root) { 
       return new NoOverlappingFrameLayout(root.getContext()); 
      } 
     }; 
     @Override 
     void updateAdapter() { 
      super.updateAdapter(); 
      ItemBridgeAdapter adapter = getBridgeAdapter(); 
      if (adapter != null) { 
       adapter.setAdapterListener(mAdapterListener); 
       adapter.setWrapper(mWrapper); 
      } 
      if (adapter != null && getVerticalGridView() != null) { 
       FocusHighlightHelper.setupHeaderItemFocusHighlight(getVerticalGridView()); 
      } 
     } 

     void setBackgroundColor(int color) { 
      mBackgroundColor = color; 
      mBackgroundColorSet = true; 

      if (getView() != null) { 
       getView().setBackgroundColor(mBackgroundColor); 
       updateFadingEdgeToBrandColor(mBackgroundColor); 
      } 
     } 

     private void updateFadingEdgeToBrandColor(int backgroundColor) { 
      View fadingView = getView().findViewById(R.id.fade_out_edge); 
      Drawable background = fadingView.getBackground(); 
      if (background instanceof GradientDrawable) { 
       background.mutate(); 
       ((GradientDrawable) background).setColors(
         new int[] {Color.TRANSPARENT, backgroundColor}); 
      } 
     } 

     int getBackgroundColor() { 
      if (getActivity() == null) { 
       throw new IllegalStateException("Activity must be attached"); 
      } 

      if (mBackgroundColorSet) { 
       return mBackgroundColor; 
      } 

      TypedValue outValue = new TypedValue(); 
      if (getActivity().getTheme().resolveAttribute(R.attr.defaultBrandColor, outValue, true)) { 
       return getResources().getColor(outValue.resourceId); 
      } 
      return getResources().getColor(R.color.lb_default_brand_color); 
     } 

     @Override 
     void onTransitionStart() { 
      super.onTransitionStart(); 
      if (!mHeadersEnabled) { 

       final VerticalGridView listView = getVerticalGridView(); 
       if (listView != null) { 
        listView.setDescendantFocusability(ViewGroup.FOCUS_BEFORE_DESCENDANTS); 
        if (listView.hasFocus()) { 
         listView.requestFocus(); 
        } 
       } 
      } 
     } 

     @Override 
     void onTransitionEnd() { 
      if (mHeadersEnabled) { 
       final VerticalGridView listView = getVerticalGridView(); 
       if (listView != null) { 
        listView.setDescendantFocusability(ViewGroup.FOCUS_AFTER_DESCENDANTS); 
        if (listView.hasFocus()) { 
         listView.requestFocus(); 
        } 
       } 
      } 
      super.onTransitionEnd(); 
     } 
    } 

CustomFrameLayout.java

 package com.ttnd.androidtv.views; 

    import android.content.Context; 
    import android.graphics.Rect; 
    import android.util.AttributeSet; 
    import android.view.View; 
    import android.widget.FrameLayout; 

    public class CustomFrameLayout extends FrameLayout { 

     public interface OnFocusSearchListener { 
      View onFocusSearch(View focused, int direction); 
     } 

     public interface OnChildFocusListener { 
      boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect); 
      void onRequestChildFocus(View child, View focused); 
     } 

     public CustomFrameLayout(Context context) { 
      this(context, null, 0); 
     } 

     public CustomFrameLayout(Context context, AttributeSet attrs) { 
      this(context, attrs, 0); 
     } 

     public CustomFrameLayout(Context context, AttributeSet attrs, int defStyle) { 
      super(context, attrs, defStyle); 
     } 

     private OnFocusSearchListener mListener; 
     private OnChildFocusListener mOnChildFocusListener; 

     public void setOnFocusSearchListener(OnFocusSearchListener listener) { 
      mListener = listener; 
     } 

     public void setOnChildFocusListener(OnChildFocusListener listener) { 
      mOnChildFocusListener = listener; 
     } 

     @Override 
     protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 
      if (mOnChildFocusListener != null) { 
       return mOnChildFocusListener.onRequestFocusInDescendants(direction, previouslyFocusedRect); 
      } 
      return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 
     } 

     @Override 
     public View focusSearch(View focused, int direction) { 
      if (mListener != null) { 
       View view = mListener.onFocusSearch(focused, direction); 
       if (view != null) { 
        return view; 
       } 
      } 
      return super.focusSearch(focused, direction); 
     } 

     @Override 
     public void requestChildFocus(View child, View focused) { 
      super.requestChildFocus(child, focused); 
      if (mOnChildFocusListener != null) { 
       mOnChildFocusListener.onRequestChildFocus(child, focused); 
      } 
     } 
    } 

CardPresenter.java

 package com.ttnd.androidtv.presenter; 

    import android.graphics.drawable.Drawable; 
    import android.support.v17.leanback.widget.ImageCardView; 
    import android.support.v17.leanback.widget.Presenter; 
    import android.util.Log; 
    import android.view.ViewGroup; 

    import com.bumptech.glide.Glide; 
    import com.example.ttnd.demoapptv.R; 
    import com.ttnd.androidtv.models.Movie; 


    public class CardPresenter extends Presenter { 
     private static final String TAG = "CardPresenter"; 

     private static int CARD_WIDTH = 313; 
     private static int CARD_HEIGHT = 176; 
     private static int sSelectedBackgroundColor; 
     private static int sDefaultBackgroundColor; 
     private Drawable mDefaultCardImage; 

     @Override 
     public ViewHolder onCreateViewHolder(ViewGroup parent) { 
      Log.d(TAG, "onCreateViewHolder"); 

      sDefaultBackgroundColor = parent.getResources().getColor(R.color.default_background); 
      sSelectedBackgroundColor = parent.getResources().getColor(R.color.selected_background); 
      mDefaultCardImage = parent.getResources().getDrawable(R.drawable.ic_launcher); 

      ImageCardView cardView = new ImageCardView(parent.getContext()) { 
       @Override 
       public void setSelected(boolean selected) { 
        updateCardBackgroundColor(this, selected); 
        super.setSelected(selected); 
       } 
      }; 

      cardView.setFocusable(true); 
      cardView.setFocusableInTouchMode(true); 
      updateCardBackgroundColor(cardView, false); 
      return new ViewHolder(cardView); 
     } 

     private static void updateCardBackgroundColor(ImageCardView view, boolean selected) { 
      int color = selected ? sSelectedBackgroundColor : sDefaultBackgroundColor; 

      view.setBackgroundColor(color); 
      view.findViewById(R.id.info_field).setBackgroundColor(color); 
     } 

     @Override 
     public void onBindViewHolder(Presenter.ViewHolder viewHolder, Object item) { 
      Movie movie = (Movie) item; 
      ImageCardView cardView = (ImageCardView) viewHolder.view; 

      Log.d(TAG, "onBindViewHolder"); 
      if (movie.getCardImageUrl() != null) { 
       cardView.setTitleText(movie.getTitle()); 
       cardView.setContentText(movie.getStudio()); 
       cardView.setMainImageDimensions(CARD_WIDTH, CARD_HEIGHT); 
       Glide.with(viewHolder.view.getContext()) 
         .load(movie.getCardImageUrl()) 
         .centerCrop() 
         .error(mDefaultCardImage) 
         .into(cardView.getMainImageView()); 
      } 
     } 

     @Override 
     public void onUnbindViewHolder(Presenter.ViewHolder viewHolder) { 
      Log.d(TAG, "onUnbindViewHolder"); 
      ImageCardView cardView = (ImageCardView) viewHolder.view; 

      cardView.setBadgeImage(null); 
      cardView.setMainImage(null); 
     } 
    } 

Movie.java

 package com.ttnd.androidtv.models; 

    import android.os.Parcel; 
    import android.os.Parcelable; 

    import java.net.URI; 
    import java.net.URISyntaxException; 


    public class Movie implements Parcelable { 
     private static final String TAG = "Movie"; 
     static final long serialVersionUID = 727566175075960653L; 
     private static int sCount = 0; 
     private String mId = "0"; 
     private String mTitle = "Title Here"; 
     private String mDescription = "Description Here"; 
     private String mBgImageUrl = "http://commondatastorage.googleapis.com/android-tv/Sample%20videos/Demo%20Slam/Google%20Demo%20Slam_%2020ft%20Search/bg.jpg"; 
     private String mCardImageUrl = "http://commondatastorage.googleapis.com/android-tv/Sample%20videos/Zeitgeist/Zeitgeist%202010_%20Year%20in%20Review/card.jpg"; 
     private String mVideoUrl = "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4"; 
     private String mStudio = "Studio Here"; 
     private String mCategory = "Category Here"; 

     public Movie() { 

     } 

     public Movie(Parcel in){ 
      String[] data = new String[8]; 

      in.readStringArray(data); 
      mId = data[0]; 
      mTitle = data[1]; 
      mDescription = data[2]; 
      mBgImageUrl = data[3]; 
      mCardImageUrl = data[4]; 
      mVideoUrl = data[5]; 
      mStudio = data[6]; 
      mCategory = data[7]; 
     } 

     public static String getCount() { 
      return Integer.toString(sCount); 
     } 

     public static void incrementCount() { 
      sCount++; 
     } 

     public String getId() { 
      return mId; 
     } 

     public void setId(String id) { 
      mId = id; 
     } 

     public String getTitle() { 
      return mTitle; 
     } 

     public void setTitle(String title) { 
      mTitle = title; 
     } 

     public String getDescription() { 
      return mDescription; 
     } 

     public void setDescription(String description) { 
      mDescription = description; 
     } 

     public String getStudio() { 
      return mStudio; 
     } 

     public void setStudio(String studio) { 
      mStudio = studio; 
     } 

     public String getVideoUrl() { 
      return mVideoUrl; 
     } 

     public void setVideoUrl(String videoUrl) { 
      mVideoUrl = videoUrl; 
     } 

     public String getBackgroundImageUrl() { 
      return mBgImageUrl; 
     } 

     public void setBackgroundImageUrl(String bgImageUrl) { 
      mBgImageUrl = bgImageUrl; 
     } 

     public String getCardImageUrl() { 
      return mCardImageUrl; 
     } 

     public void setCardImageUrl(String cardImageUrl) { 
      mCardImageUrl = cardImageUrl; 
     } 

     public String getCategory() { 
      return mCategory; 
     } 

     public void setCategory(String category) { 
      mCategory = category; 
     } 

     public URI getBackgroundImageURI() { 
      try { 
       return new URI(getBackgroundImageUrl()); 
      } catch (URISyntaxException e) { 
       return null; 
      } 
     } 

     public int describeContents() { 
      return 0; 
     } 

     @Override 
     public void writeToParcel(Parcel dest, int flags) { 
      dest.writeStringArray(new String[] {mId, 
        mTitle, 
        mDescription, 
        mBgImageUrl, 
        mCardImageUrl, 
        mVideoUrl, 
        mStudio, 
        mCategory}); 
     } 

     @Override 
     public String toString() { 
      StringBuilder sb = new StringBuilder(200); 
      sb.append("Movie{"); 
      sb.append("mId=" + mId); 
      sb.append(", mTitle='" + mTitle + '\''); 
      sb.append(", mVideoUrl='" + mVideoUrl + '\''); 
      sb.append(", backgroundImageUrl='" + mBgImageUrl + '\''); 
      sb.append(", backgroundImageURI='" + getBackgroundImageURI().toString() + '\''); 
      sb.append(", mCardImageUrl='" + mCardImageUrl + '\''); 
      sb.append('}'); 
      return sb.toString(); 
     } 

     public static final Parcelable.Creator CREATOR = new Parcelable.Creator() { 
      public Movie createFromParcel(Parcel in) { 
       return new Movie(in); 
      } 

      public Movie[] newArray(int size) { 
       return new Movie[size]; 
      } 
     }; 
    } 

私はこれに関連グーグルたが、私がブログを見つけましたカスタマイズの種類。以下のURLをご覧ください： https://medium.com/building-for-android-tv