我想创建一个二维网格，每行有不同的列表计数意味着row1有n1项，row2有n2，row3有n3等等....
这是一款电视应用，因此可以通过D-PAD导航到每个项目。
我尝试过嵌套的recyclerview（垂直recyclelerview内的水平Recyclerview）但是当我尝试刷新数据时会导致焦点问题。 任何帮助将不胜感激。
谢谢
package com.fusioni.demo;
import java.util.ArrayList;
import com.calkins.edutopia.MyStaticClass;
import com.calkins.edutopia.R;
import com.calkins.edutopia.SearchAvtivity;
import com.calkins.edutopia.SettingPageActivity;
import com.calkins.edutopia.TrendActivity;
import com.calkins.edutopia.UtilityClass;
import com.calkins.edutopia.VideoPlayingPageVisualOn;
import com.calkins.edutopia.WebTrendsMethods;
import com.fusioni.model.CategoryModel;
import com.fusioni.model.MainMenuModel;
import com.fusioni.model.VideoContentModel;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageButton;
import android.widget.TextView;
public class DemoVerticalRecyclerAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
public static final int TYPE_HEADER = 0;
public static final int TYPE_ITEM = 1;
private Activity context;
private ArrayList<ArrayList<VideoContentModel>> categoriesVideoList;
private ArrayList<CategoryModel> categoryDataList;
private ArrayList<MainMenuModel> mainMenuDataList;
private UtilityClass utilityClass;
private HorizontalThumnailAdapter adapter;
private CategoryModel model;
// private LinearLayoutManager layoutManager;
private int fixed_position = 0;
private com.calkins.imageloder.ImageLoader imageLoader;
private WebTrendsMethods webtrendsMethod;
public DemoVerticalRecyclerAdapter(Activity context, ArrayList<ArrayList<VideoContentModel>> categoriesVideoList,
ArrayList<CategoryModel> categoryDataList, ArrayList<MainMenuModel> mainMenuDataList) {
super();
this.context = context;
this.categoriesVideoList = categoriesVideoList;
this.categoryDataList = categoryDataList;
this.mainMenuDataList = mainMenuDataList;
utilityClass = new UtilityClass(context);
imageLoader = new com.calkins.imageloder.ImageLoader(context, 156, 1);
webtrendsMethod = new WebTrendsMethods(context);
}
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
if (viewType == TYPE_ITEM) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.cat_name_vertical_row, parent, false);
parent.getChildCount();
return new VHItem(view, parent.getChildCount());
} else if (viewType == TYPE_HEADER) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.vertical_list_header, parent, false);
return new VHHeader(view);
}
throw new RuntimeException(
"there is no type that matches the type " + viewType + " + make sure your using types correctly");
}
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
if (holder instanceof VHItem) {
VHItem item = (VHItem) holder;
CategoryModel model = categoryDataList.get(position - 1);
item.cateTitleName.setText(model.getCatTitle());
item.cateTitleName.setTypeface(utilityClass.gotham_medium);
item.recyclerView.setTag(position + 1);
fixed_position = position;
model = categoryDataList.get(position - 1);
// adapter = new HorizontalThumnailAdapter(context,
// categoriesVideoList.get((Demo2Activity.globlePosition)),
// model.getCatDfpTag(), model.getCatTitle());
adapter = new HorizontalThumnailAdapter(context, categoriesVideoList.get(position - 1),
model.getCatDfpTag(), model.getCatTitle(), imageLoader);
item.recyclerView.setAdapter(adapter);
} else if (holder instanceof VHHeader) {
// cast holder to VHHeader and set data for header.
// VHHeader headerItem=(VHHeader)holder;
}
// Log.i("Position BindViewholder", "" + fixed_position + " " +
// position);
}
public void setVideoList(ArrayList<ArrayList<VideoContentModel>> categoriesVideoList, int pos,
int hpos) {
this.categoriesVideoList = categoriesVideoList;
Log.e("Refresh", hpos+"=H==V="+pos);
notifyItemRangeChanged(0, getItemCount());
}
public void setDATAList(ArrayList<CategoryModel> categoryDataList) {
this.categoryDataList = categoryDataList;
}
@Override
public int getItemCount() {
return categoryDataList.size() + 1;
}
@Override
public int getItemViewType(int position) {
if (isPositionHeader(position))
return TYPE_HEADER;
return TYPE_ITEM;
}
private boolean isPositionHeader(int position) {
return position == 0;
}
class VHItem extends RecyclerView.ViewHolder implements View.OnKeyListener {
TextView cateTitleName;
RecyclerView recyclerView;
public VHItem(View itemView, int totalItem) {
super(itemView);
recyclerView = (RecyclerView) itemView.findViewById(R.id.horizontal_recyclerview);
cateTitleName = (TextView) itemView.findViewById(R.id.cat_title_name);
LinearLayoutManager layoutManager = new LinearLayoutManager(context, LinearLayoutManager.HORIZONTAL, false);
recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(layoutManager);
}
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
Log.e("onKey"+fixed_position, v+"=H==keyCode="+keyCode);
return true;
}
}
class VHHeader extends RecyclerView.ViewHolder implements View.OnClickListener {
ImageButton playAllButton, trendingButton, searchButton, settingButton;
public VHHeader(View itemView) {
super(itemView);
playAllButton = (ImageButton) itemView.findViewById(R.id.img_playall);
trendingButton = (ImageButton) itemView.findViewById(R.id.img_trending);
searchButton = (ImageButton) itemView.findViewById(R.id.img_search);
settingButton = (ImageButton) itemView.findViewById(R.id.img_setting);
playAllButton.setOnClickListener(this);
trendingButton.setOnClickListener(this);
searchButton.setOnClickListener(this);
settingButton.setOnClickListener(this);
}
@Override
public void onClick(View v) {
Intent i = new Intent();
Bundle b = new Bundle();
switch (v.getId()) {
case R.id.img_playall:
if (utilityClass.checkInternetConnection()) {
try {
webtrendsMethod.leftMenuSelectWtCall(context.getString(R.string.play_all), "");
} catch (Exception e) {
e.printStackTrace();
}
b.putString(MyStaticClass.PLAY_TYPE_VIDEO, MyStaticClass.PLAY_ALL);
b.putParcelableArrayList(MyStaticClass.CATEGORY_MODEL_LIST, categoryDataList);
b.putParcelable(MyStaticClass.MAIN_MENU_MODEL, mainMenuDataList.get(2));
i.putExtras(b);
i.setClass(context, VideoPlayingPageVisualOn.class);
context.startActivity(i);
} else {
utilityClass.showCustomDialog(context.getString(R.string.internetErrorMsg));
}
break;
case R.id.img_trending:
try {
webtrendsMethod.leftMenuSelectWtCall(context.getString(R.string.trening_small), "");
} catch (Exception e) {
e.printStackTrace();
}
b.putParcelable(MyStaticClass.MAIN_MENU_MODEL, mainMenuDataList.get(1));
b.putString(MyStaticClass.PAGE_TYPE, MyStaticClass.TRENDING_PAGE);
i.putExtras(b);
i.setClass(context, TrendActivity.class);
context.startActivity(i);
break;
case R.id.img_search:
try {
webtrendsMethod.leftMenuSelectWtCall(context.getString(R.string.search), "");
} catch (Exception e) {
e.printStackTrace();
}
b.putParcelable(MyStaticClass.MAIN_MENU_MODEL, mainMenuDataList.get(3));
b.putString(MyStaticClass.PAGE_TYPE, MyStaticClass.SEARCH_PAGE);
i.putExtras(b);
i.setClass(context, SearchAvtivity.class);
context.startActivity(i);
break;
case R.id.img_setting:
try {
webtrendsMethod.leftMenuSelectWtCall(context.getString(R.string.action_settings), "");
} catch (Exception e) {
e.printStackTrace();
}
context.startActivity(new Intent(context, SettingPageActivity.class));
break;
}
}
}
}
答案 0 :(得分：0)
我已经使用RowsSupportFragment解决了有关leanback支持库的问题。