Java 具有多个适配器和viewtype的回收器视图不工作
这是我需要的原型： 我得到了什么结果 我尝试在单个RecylerView中使用多个viewtype，但没有得到所需的结果。如果使用Java 具有多个适配器和viewtype的回收器视图不工作,java,android,android-layout,android-recyclerview,adapter,Java,Android,Android Layout,Android Recyclerview,Adapter,这是我需要的原型： 我得到了什么结果 我尝试在单个RecylerView中使用多个viewtype，但没有得到所需的结果。如果使用getItemViewType（），则无法获取需要写入的逻辑。请帮帮我 这是我想在RecylerView中实现的JSON数据 { "rows": [{ "sequence_id":1, "sequence_description":"animal description goes here", "sequence_image":"thu
getItemViewType（） {
"rows": [{
"sequence_id":1,
"sequence_description":"animal description goes here",
"sequence_image":"thumbnail.png",
"sequence_title": "Animal",
"child_rows":[
{
"id": "1",
"name":"Lion",
"description" : "lion description goes here",
"image": "Lion.png"
},
{
"id": "2",
"name":"Tiger",
"description" : "Tiger description goes here",
"image": "Tiger.png"
},
{
"id": "3",
"name":"Elephant",
"description" : "Elephant description goes here",
"image": "Elephant.png"
}
]
},
{
"sequence_id":2,
"sequence_description":"animal description goes here",
"sequence_image":"thumbnail.png",
"sequence_title": "Birds",
"child_rows":[
{
"id": "1",
"name":"Parrot",
"description" : "Parrot description goes here",
"image": "parrot.png"
},
{
"id": "2",
"name":"Pigeon",
"description" : "Pigeon description goes here",
"image": "Pigeon.png"
},
{
"id": "3",
"name":"Crow",
"description" : "Crow description goes here",
"image": "crow.png"
}
]
}
]
}
mrecyclerview = (RecyclerView) findViewById(R.id.recyclerView);
try {
JSONObject jsonObj = new JSONObject(dataStr.getJsonString());
JSONArray jsondata = jsonObj.getJSONArray("rows");
for(int i = 0;i<jsondata.length();i++){
JSONObject rowsdata = jsondata.getJSONObject(i);
Integer sequence_id = rowsdata.getInt("sequence_id");
String sequence_description = rowsdata.getString("sequence_description");
String sequence_image = rowsdata.getString("sequence_image");
String sequence_title = rowsdata.getString("sequence_title");
List<ScreenOneInventory> minventorylist = new ArrayList<ScreenOneInventory>();
ScreenOneRows soRows = new ScreenOneRows();
JSONArray childres = rowsdata.getJSONArray("child_rows");
for(int j =0;j<childres.length();j++){
JSONObject inventorydata = childres.getJSONObject(j);
Log.i("Fragment","I am here in loop j:"+j);
String id = inventorydata.getString("id");
String name = inventorydata.getString("name");
String description = inventorydata.getString("description");
String image = inventorydata.getString("image");
ScreenOneInventory soinventoryObj = new ScreenOneInventory();
soinventoryObj.setId(id);
soinventoryObj.setname(name);
soinventoryObj.setDescription(description);
soinventoryObj.setImage(image);
minventorylist.add(soinventoryObj);
}
soRows.setSequence_id(sequence_id);
soRows.setSequence_Description(sequence_description);
soRows.setSequence_image(sequence_image);
soRows.setSop_title(sequence_title);
soRows.setInventoryList(minventorylist);
RowsData.add(soRows);
}
} catch (JSONException e) {
e.printStackTrace();
}
mrecyclerview.setLayoutManager(new LinearLayoutManager(getActivity()));
ScreenOneAdapter adapter = new ScreenOneAdapter(getActivity(),RowsData,mrecyclerview);
mrecyclerview.setAdapter(adapter);
}
public class ScreenOneAdapter extends RecyclerView.Adapter<ScreenOneAdapter.BaseViewHolder> {
private LayoutInflater mInflater;
private List<ScreenOneRows> mRowsList;
public static final int PARENT_VIEW = 0;
public static final int CHILD_VIEW = 1;
private RecyclerView recyclerView;
private Context mcontext;
public ScreenOneAdapter(Context context, List<ScreenOneRows> mRowsList, RecyclerView mrecyclerview) {
this.mInflater = LayoutInflater.from(context);
this.mRowsList = mRowsList;
this.recyclerView = mrecyclerview;
this.mcontext = context;
}
@Override
public BaseViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view;
view = mInflater.inflate(R.layout.list_item_rows,parent,false);
RowsListHolder rowHolder = new RowsListHolder(view);
return rowHolder;
}
@Override
public void onBindViewHolder(BaseViewHolder holder, int position) {
ScreenOneRows current = mRowsList.get(position);
RowsListHolder rHolder = (RowsListHolder) holder;
rHolder.setData(current);
List mInventoryList = current.getInventoryList();
InventoryListAdapter iadapter = new InventoryListAdapter(mcontext,mInventoryList);
recyclerView.setAdapter(iadapter);
}
@Override
public int getItemCount() {
return (null != mRowsList ? mRowsList.size() : 0);
}
public class BaseViewHolder extends RecyclerView.ViewHolder{
public BaseViewHolder(View itemView) {
super(itemView);
}
}
public class RowsListHolder extends BaseViewHolder{
private ImageView icon;
private TextView title;
private TextView description;
public RowsListHolder(View itemView) {
super(itemView);
icon = (ImageView) itemView.findViewById(R.id.img_icon);
title = (TextView) itemView.findViewById(R.id.tvTitle);
description = (TextView) itemView.findViewById(R.id.tvDescription);
}
public void setData(ScreenOneRows current){
this.title.setText(current.getSequence_title());
this.description.setText(current.getSequence_description());
}
}
}
public class InventoryListAdapter extends RecyclerView.Adapter<InventoryListAdapter.InventoryListHolder> {
private List<ScreenOneInventory> mInventoryList;
private LayoutInflater mInflater;
public InventoryListAdapter(Context context, List<ScreenOneInventory> mInventoryList) {
this.mInventoryList = mInventoryList;
this.mInflater = LayoutInflater.from(context);
}
@Override
public InventoryListAdapter.InventoryListHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View rootView;
rootView = mInflater.inflate(R.layout.list_item_inventory,parent,false);
InventoryListHolder invHolder = new InventoryListHolder(rootView);
return invHolder;
}
@Override
public void onBindViewHolder(InventoryListAdapter.InventoryListHolder holder, int position) {
ScreenOneInventory currentInv = mInventoryList.get(position);
InventoryListHolder invenHolder = (InventoryListHolder) holder;
invenHolder.setData(currentInv);
}
@Override
public int getItemCount() {
return (null != mInventoryList ? mInventoryList.size() : 0);
}
public class InventoryListHolder extends RecyclerView.ViewHolder {
private ImageView imgicon;
private TextView title;
private TextView description;
public InventoryListHolder(View itemView) {
super(itemView);
imgicon = (ImageView) itemView.findViewById(R.id.img_inv_icon);
title = (TextView) itemView.findViewById(R.id.titletxt);
description = (TextView) itemView.findViewById(R.id.descriptiontxt);
}
public void setData(ScreenOneInventory data) {
this.title.setText(data.getName());
this.status.setText(data.getDescription());
}
}
}
class ScreenOneRows implements ItemInterface{
String sequence_id;
String sequence_description;
String sequence_image;
String sequence_title;
public String getSequence_id() {
return sequence_id;
}
public void setSequence_id(String sequence_id) {
this.sequence_id = sequence_id;
}
public String getSequence_description() {
return sequence_description;
}
public void setSequence_description(String sequence_description) {
this.sequence_description = sequence_description;
}
public String getSequence_image() {
return sequence_image;
}
public void setSequence_image(String sequence_image) {
this.sequence_image = sequence_image;
}
public String getSequence_title() {
return sequence_title;
}
public void setSequence_title(String sequence_title) {
this.sequence_title = sequence_title;
}
@Override
public boolean isRow() {
return true;
}
}
public class MyCustomAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
public static final int ROW_VIEW = 0;
public static final int CHILD_VIEW = 1;
ArrayList<ItemInterface> finalList;
WeakReference<Context> mContextWeakReference;
public MyCustomAdapter(ArrayList<ItemInterface> finalList, Context context) {
this.finalList = finalList;
this.mContextWeakReference = new WeakReference<Context>(context);
}
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
Context context = mContextWeakReference.get();
if (viewType == ROW_VIEW) {
return new SectionViewHolder(LayoutInflater.from(parent.getContext()).inflate(R.layout.item_row, parent, false));
}
return new MyViewHolder(LayoutInflater.from(parent.getContext()).inflate(R.layout.item_child, parent, false), context);
}
@Override
public int getItemViewType(int position) {
if (finalList.get(position).isRow()) {
return ROW_VIEW;
} else {
return CHILD_VIEW;
}
}
@Override
public void onBindViewHolder(final RecyclerView.ViewHolder holder, int position) {
Context context = mContextWeakReference.get();
if (context == null) {
return;
}
if (ROW_VIEW == getItemViewType(position)) {
SectionViewHolder sectionViewHolder = (SectionViewHolder) holder;
ScreenOneRows screenOneRows = (ScreenOneRows) finalList.get(position);
sectionViewHolder.textView.setText(screenOneRows.getSequence_title());
sectionViewHolder.textView2.setText(screenOneRows.getSequence_description());
return;
}
MyViewHolder myViewHolder = (MyViewHolder) holder;
ScreenOneInventory childInventory = (ScreenOneInventory) finalList.get(position);
myViewHolder.textView.setText(childInventory.getName());
myViewHolder.textView2.setText(childInventory.getDescription());
}
@Override
public int getItemCount() {
//return mUsersAndSectionList.size();
return finalList.size();
}
//holder
public class MyViewHolder extends RecyclerView.ViewHolder {
TextView textView, textView2;
ImageView image;
public MyViewHolder(View itemView, final Context context) {
super(itemView);
textView = itemView.findViewById(R.id.textView);
textView2 = itemView.findViewById(R.id.textView2);
image = itemView.findViewById(R.id.image);
}
}
public class SectionViewHolder extends RecyclerView.ViewHolder {
TextView textView, textView2;
ImageView image;
public SectionViewHolder(View itemView) {
super(itemView);
textView = itemView.findViewById(R.id.textView);
textView2 = itemView.findViewById(R.id.textView2);
image = itemView.findViewById(R.id.image);
}
}
mrecyclerview=（RecyclerView）findViewById（R.id.RecyclerView）；
试一试{
JSONObject jsonObj=新的JSONObject（dataStr.getJsonString（））；
JSONArray jsondata=jsonObj.getJSONArray（“行”）；
对于（int i=0；i无需创建两个不同的适配器，您可以在行和子行的情况下使用两个不同的项布局
您需要创建一个带有额外信息的公共列表视图，例如该值是行值或子值。
如果“行值”为true，则为项目\u row.xml充气
如果行值为false，则对项目\u child.xml进行充气
我已经创建了示例应用程序，您可以复制粘贴和检查
**主要活动**
public class MainActivity extends AppCompatActivity {
List<ScreenOneInventory> minventorylist = new ArrayList<ScreenOneInventory>();
List<ScreenOneRows> screenOneRowses = new ArrayList<>();
ArrayList<ItemInterface> finalList = new ArrayList<>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
String dataStr = "{\n" +
" \"rows\": [{\n" +
" \"sequence_id\":1,\n" +
" \"sequence_description\":\"animal description goes here\",\n" +
" \"sequence_image\":\"thumbnail.png\",\n" +
" \"sequence_title\": \"Animal\", \n" +
" \"child_rows\":[\n" +
" {\n" +
" \"id\": \"1\",\n" +
" \"name\":\"Lion\",\n" +
" \"description\" : \"lion description goes here\",\n" +
" \"image\": \"Lion.png\"\n" +
"\n" +
" },\n" +
" {\n" +
" \"id\": \"2\",\n" +
" \"name\":\"Tiger\",\n" +
" \"description\" : \"Tiger description goes here\",\n" +
" \"image\": \"Tiger.png\"\n" +
" },\n" +
" {\n" +
" \"id\": \"3\",\n" +
" \"name\":\"Elephant\",\n" +
" \"description\" : \"Elephant description goes here\",\n" +
" \"image\": \"Elephant.png\"\n" +
" } \n" +
" ]\n" +
" },\n" +
"{\n" +
" \"sequence_id\":2,\n" +
" \"sequence_description\":\"animal description goes here\",\n" +
" \"sequence_image\":\"thumbnail.png\",\n" +
" \"sequence_title\": \"Birds\", \n" +
" \"child_rows\":[\n" +
" {\n" +
" \"id\": \"1\",\n" +
" \"name\":\"Parrot\",\n" +
" \"description\" : \"Parrot description goes here\",\n" +
" \"image\": \"parrot.png\"\n" +
" },\n" +
" {\n" +
" \"id\": \"2\",\n" +
" \"name\":\"Pigeon\",\n" +
" \"description\" : \"Pigeon description goes here\",\n" +
" \"image\": \"Pigeon.png\"\n" +
" },\n" +
" {\n" +
" \"id\": \"3\",\n" +
" \"name\":\"Crow\",\n" +
" \"description\" : \"Crow description goes here\",\n" +
" \"image\": \"crow.png\"\n" +
" } \n" +
" ]\n" +
" } \n" +
" ]\n" +
"}";
try {
JSONObject jsonObj = new JSONObject(dataStr);
JSONArray jsondata = jsonObj.getJSONArray("rows");
for (int i = 0; i < jsondata.length(); i++) {
JSONObject rowsdata = jsondata.getJSONObject(i);
String sequence_id = rowsdata.getString("sequence_id");
String sequence_description = rowsdata.getString("sequence_description");
String sequence_image = rowsdata.getString("sequence_image");
String sequence_title = rowsdata.getString("sequence_title");
ScreenOneRows soRows = new ScreenOneRows();
soRows.setSequence_id(sequence_id);
soRows.setSequence_description(sequence_description);
soRows.setSequence_image(sequence_image);
soRows.setSequence_title(sequence_title);
finalList.add(soRows);
JSONArray childres = rowsdata.getJSONArray("child_rows");
for (int j = 0; j < childres.length(); j++) {
JSONObject inventorydata = childres.getJSONObject(j);
Log.i("Fragment", "I am here in loop j:" + j);
String id = inventorydata.getString("id");
String name = inventorydata.getString("name");
String description = inventorydata.getString("description");
String image = inventorydata.getString("image");
ScreenOneInventory soinventoryObj = new ScreenOneInventory();
soinventoryObj.setId(id);
soinventoryObj.setName(name);
soinventoryObj.setDescription(description);
soinventoryObj.setImage(image);
finalList.add(soinventoryObj);
}
}
RecyclerView recyclerView = (RecyclerView) findViewById(R.id.rv);
recyclerView.setHasFixedSize(true);
RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(this);
recyclerView.setLayoutManager(mLayoutManager);
MyCustomAdapter myCustomAdapter = new MyCustomAdapter(finalList, this);
recyclerView.setAdapter(myCustomAdapter);
} catch (Exception e) {
e.printStackTrace();
}
}
}
screennerows.java
mrecyclerview = (RecyclerView) findViewById(R.id.recyclerView);
try {
JSONObject jsonObj = new JSONObject(dataStr.getJsonString());
JSONArray jsondata = jsonObj.getJSONArray("rows");
for(int i = 0;i<jsondata.length();i++){
JSONObject rowsdata = jsondata.getJSONObject(i);
Integer sequence_id = rowsdata.getInt("sequence_id");
String sequence_description = rowsdata.getString("sequence_description");
String sequence_image = rowsdata.getString("sequence_image");
String sequence_title = rowsdata.getString("sequence_title");
List<ScreenOneInventory> minventorylist = new ArrayList<ScreenOneInventory>();
ScreenOneRows soRows = new ScreenOneRows();
JSONArray childres = rowsdata.getJSONArray("child_rows");
for(int j =0;j<childres.length();j++){
JSONObject inventorydata = childres.getJSONObject(j);
Log.i("Fragment","I am here in loop j:"+j);
String id = inventorydata.getString("id");
String name = inventorydata.getString("name");
String description = inventorydata.getString("description");
String image = inventorydata.getString("image");
ScreenOneInventory soinventoryObj = new ScreenOneInventory();
soinventoryObj.setId(id);
soinventoryObj.setname(name);
soinventoryObj.setDescription(description);
soinventoryObj.setImage(image);
minventorylist.add(soinventoryObj);
}
soRows.setSequence_id(sequence_id);
soRows.setSequence_Description(sequence_description);
soRows.setSequence_image(sequence_image);
soRows.setSop_title(sequence_title);
soRows.setInventoryList(minventorylist);
RowsData.add(soRows);
}
} catch (JSONException e) {
e.printStackTrace();
}
mrecyclerview.setLayoutManager(new LinearLayoutManager(getActivity()));
ScreenOneAdapter adapter = new ScreenOneAdapter(getActivity(),RowsData,mrecyclerview);
mrecyclerview.setAdapter(adapter);
}
public class ScreenOneAdapter extends RecyclerView.Adapter<ScreenOneAdapter.BaseViewHolder> {
private LayoutInflater mInflater;
private List<ScreenOneRows> mRowsList;
public static final int PARENT_VIEW = 0;
public static final int CHILD_VIEW = 1;
private RecyclerView recyclerView;
private Context mcontext;
public ScreenOneAdapter(Context context, List<ScreenOneRows> mRowsList, RecyclerView mrecyclerview) {
this.mInflater = LayoutInflater.from(context);
this.mRowsList = mRowsList;
this.recyclerView = mrecyclerview;
this.mcontext = context;
}
@Override
public BaseViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view;
view = mInflater.inflate(R.layout.list_item_rows,parent,false);
RowsListHolder rowHolder = new RowsListHolder(view);
return rowHolder;
}
@Override
public void onBindViewHolder(BaseViewHolder holder, int position) {
ScreenOneRows current = mRowsList.get(position);
RowsListHolder rHolder = (RowsListHolder) holder;
rHolder.setData(current);
List mInventoryList = current.getInventoryList();
InventoryListAdapter iadapter = new InventoryListAdapter(mcontext,mInventoryList);
recyclerView.setAdapter(iadapter);
}
@Override
public int getItemCount() {
return (null != mRowsList ? mRowsList.size() : 0);
}
public class BaseViewHolder extends RecyclerView.ViewHolder{
public BaseViewHolder(View itemView) {
super(itemView);
}
}
public class RowsListHolder extends BaseViewHolder{
private ImageView icon;
private TextView title;
private TextView description;
public RowsListHolder(View itemView) {
super(itemView);
icon = (ImageView) itemView.findViewById(R.id.img_icon);
title = (TextView) itemView.findViewById(R.id.tvTitle);
description = (TextView) itemView.findViewById(R.id.tvDescription);
}
public void setData(ScreenOneRows current){
this.title.setText(current.getSequence_title());
this.description.setText(current.getSequence_description());
}
}
}
public class InventoryListAdapter extends RecyclerView.Adapter<InventoryListAdapter.InventoryListHolder> {
private List<ScreenOneInventory> mInventoryList;
private LayoutInflater mInflater;
public InventoryListAdapter(Context context, List<ScreenOneInventory> mInventoryList) {
this.mInventoryList = mInventoryList;
this.mInflater = LayoutInflater.from(context);
}
@Override
public InventoryListAdapter.InventoryListHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View rootView;
rootView = mInflater.inflate(R.layout.list_item_inventory,parent,false);
InventoryListHolder invHolder = new InventoryListHolder(rootView);
return invHolder;
}
@Override
public void onBindViewHolder(InventoryListAdapter.InventoryListHolder holder, int position) {
ScreenOneInventory currentInv = mInventoryList.get(position);
InventoryListHolder invenHolder = (InventoryListHolder) holder;
invenHolder.setData(currentInv);
}
@Override
public int getItemCount() {
return (null != mInventoryList ? mInventoryList.size() : 0);
}
public class InventoryListHolder extends RecyclerView.ViewHolder {
private ImageView imgicon;
private TextView title;
private TextView description;
public InventoryListHolder(View itemView) {
super(itemView);
imgicon = (ImageView) itemView.findViewById(R.id.img_inv_icon);
title = (TextView) itemView.findViewById(R.id.titletxt);
description = (TextView) itemView.findViewById(R.id.descriptiontxt);
}
public void setData(ScreenOneInventory data) {
this.title.setText(data.getName());
this.status.setText(data.getDescription());
}
}
}
class ScreenOneRows implements ItemInterface{
String sequence_id;
String sequence_description;
String sequence_image;
String sequence_title;
public String getSequence_id() {
return sequence_id;
}
public void setSequence_id(String sequence_id) {
this.sequence_id = sequence_id;
}
public String getSequence_description() {
return sequence_description;
}
public void setSequence_description(String sequence_description) {
this.sequence_description = sequence_description;
}
public String getSequence_image() {
return sequence_image;
}
public void setSequence_image(String sequence_image) {
this.sequence_image = sequence_image;
}
public String getSequence_title() {
return sequence_title;
}
public void setSequence_title(String sequence_title) {
this.sequence_title = sequence_title;
}
@Override
public boolean isRow() {
return true;
}
}
public class MyCustomAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
public static final int ROW_VIEW = 0;
public static final int CHILD_VIEW = 1;
ArrayList<ItemInterface> finalList;
WeakReference<Context> mContextWeakReference;
public MyCustomAdapter(ArrayList<ItemInterface> finalList, Context context) {
this.finalList = finalList;
this.mContextWeakReference = new WeakReference<Context>(context);
}
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
Context context = mContextWeakReference.get();
if (viewType == ROW_VIEW) {
return new SectionViewHolder(LayoutInflater.from(parent.getContext()).inflate(R.layout.item_row, parent, false));
}
return new MyViewHolder(LayoutInflater.from(parent.getContext()).inflate(R.layout.item_child, parent, false), context);
}
@Override
public int getItemViewType(int position) {
if (finalList.get(position).isRow()) {
return ROW_VIEW;
} else {
return CHILD_VIEW;
}
}
@Override
public void onBindViewHolder(final RecyclerView.ViewHolder holder, int position) {
Context context = mContextWeakReference.get();
if (context == null) {
return;
}
if (ROW_VIEW == getItemViewType(position)) {
SectionViewHolder sectionViewHolder = (SectionViewHolder) holder;
ScreenOneRows screenOneRows = (ScreenOneRows) finalList.get(position);
sectionViewHolder.textView.setText(screenOneRows.getSequence_title());
sectionViewHolder.textView2.setText(screenOneRows.getSequence_description());
return;
}
MyViewHolder myViewHolder = (MyViewHolder) holder;
ScreenOneInventory childInventory = (ScreenOneInventory) finalList.get(position);
myViewHolder.textView.setText(childInventory.getName());
myViewHolder.textView2.setText(childInventory.getDescription());
}
@Override
public int getItemCount() {
//return mUsersAndSectionList.size();
return finalList.size();
}
//holder
public class MyViewHolder extends RecyclerView.ViewHolder {
TextView textView, textView2;
ImageView image;
public MyViewHolder(View itemView, final Context context) {
super(itemView);
textView = itemView.findViewById(R.id.textView);
textView2 = itemView.findViewById(R.id.textView2);
image = itemView.findViewById(R.id.image);
}
}
public class SectionViewHolder extends RecyclerView.ViewHolder {
TextView textView, textView2;
ImageView image;
public SectionViewHolder(View itemView) {
super(itemView);
textView = itemView.findViewById(R.id.textView);
textView2 = itemView.findViewById(R.id.textView2);
image = itemView.findViewById(R.id.image);
}
}
回收器视图适配器**
**MyCustomAdapter.java
mrecyclerview = (RecyclerView) findViewById(R.id.recyclerView);
try {
JSONObject jsonObj = new JSONObject(dataStr.getJsonString());
JSONArray jsondata = jsonObj.getJSONArray("rows");
for(int i = 0;i<jsondata.length();i++){
JSONObject rowsdata = jsondata.getJSONObject(i);
Integer sequence_id = rowsdata.getInt("sequence_id");
String sequence_description = rowsdata.getString("sequence_description");
String sequence_image = rowsdata.getString("sequence_image");
String sequence_title = rowsdata.getString("sequence_title");
List<ScreenOneInventory> minventorylist = new ArrayList<ScreenOneInventory>();
ScreenOneRows soRows = new ScreenOneRows();
JSONArray childres = rowsdata.getJSONArray("child_rows");
for(int j =0;j<childres.length();j++){
JSONObject inventorydata = childres.getJSONObject(j);
Log.i("Fragment","I am here in loop j:"+j);
String id = inventorydata.getString("id");
String name = inventorydata.getString("name");
String description = inventorydata.getString("description");
String image = inventorydata.getString("image");
ScreenOneInventory soinventoryObj = new ScreenOneInventory();
soinventoryObj.setId(id);
soinventoryObj.setname(name);
soinventoryObj.setDescription(description);
soinventoryObj.setImage(image);
minventorylist.add(soinventoryObj);
}
soRows.setSequence_id(sequence_id);
soRows.setSequence_Description(sequence_description);
soRows.setSequence_image(sequence_image);
soRows.setSop_title(sequence_title);
soRows.setInventoryList(minventorylist);
RowsData.add(soRows);
}
} catch (JSONException e) {
e.printStackTrace();
}
mrecyclerview.setLayoutManager(new LinearLayoutManager(getActivity()));
ScreenOneAdapter adapter = new ScreenOneAdapter(getActivity(),RowsData,mrecyclerview);
mrecyclerview.setAdapter(adapter);
}
public class ScreenOneAdapter extends RecyclerView.Adapter<ScreenOneAdapter.BaseViewHolder> {
private LayoutInflater mInflater;
private List<ScreenOneRows> mRowsList;
public static final int PARENT_VIEW = 0;
public static final int CHILD_VIEW = 1;
private RecyclerView recyclerView;
private Context mcontext;
public ScreenOneAdapter(Context context, List<ScreenOneRows> mRowsList, RecyclerView mrecyclerview) {
this.mInflater = LayoutInflater.from(context);
this.mRowsList = mRowsList;
this.recyclerView = mrecyclerview;
this.mcontext = context;
}
@Override
public BaseViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view;
view = mInflater.inflate(R.layout.list_item_rows,parent,false);
RowsListHolder rowHolder = new RowsListHolder(view);
return rowHolder;
}
@Override
public void onBindViewHolder(BaseViewHolder holder, int position) {
ScreenOneRows current = mRowsList.get(position);
RowsListHolder rHolder = (RowsListHolder) holder;
rHolder.setData(current);
List mInventoryList = current.getInventoryList();
InventoryListAdapter iadapter = new InventoryListAdapter(mcontext,mInventoryList);
recyclerView.setAdapter(iadapter);
}
@Override
public int getItemCount() {
return (null != mRowsList ? mRowsList.size() : 0);
}
public class BaseViewHolder extends RecyclerView.ViewHolder{
public BaseViewHolder(View itemView) {
super(itemView);
}
}
public class RowsListHolder extends BaseViewHolder{
private ImageView icon;
private TextView title;
private TextView description;
public RowsListHolder(View itemView) {
super(itemView);
icon = (ImageView) itemView.findViewById(R.id.img_icon);
title = (TextView) itemView.findViewById(R.id.tvTitle);
description = (TextView) itemView.findViewById(R.id.tvDescription);
}
public void setData(ScreenOneRows current){
this.title.setText(current.getSequence_title());
this.description.setText(current.getSequence_description());
}
}
}
public class InventoryListAdapter extends RecyclerView.Adapter<InventoryListAdapter.InventoryListHolder> {
private List<ScreenOneInventory> mInventoryList;
private LayoutInflater mInflater;
public InventoryListAdapter(Context context, List<ScreenOneInventory> mInventoryList) {
this.mInventoryList = mInventoryList;
this.mInflater = LayoutInflater.from(context);
}
@Override
public InventoryListAdapter.InventoryListHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View rootView;
rootView = mInflater.inflate(R.layout.list_item_inventory,parent,false);
InventoryListHolder invHolder = new InventoryListHolder(rootView);
return invHolder;
}
@Override
public void onBindViewHolder(InventoryListAdapter.InventoryListHolder holder, int position) {
ScreenOneInventory currentInv = mInventoryList.get(position);
InventoryListHolder invenHolder = (InventoryListHolder) holder;
invenHolder.setData(currentInv);
}
@Override
public int getItemCount() {
return (null != mInventoryList ? mInventoryList.size() : 0);
}
public class InventoryListHolder extends RecyclerView.ViewHolder {
private ImageView imgicon;
private TextView title;
private TextView description;
public InventoryListHolder(View itemView) {
super(itemView);
imgicon = (ImageView) itemView.findViewById(R.id.img_inv_icon);
title = (TextView) itemView.findViewById(R.id.titletxt);
description = (TextView) itemView.findViewById(R.id.descriptiontxt);
}
public void setData(ScreenOneInventory data) {
this.title.setText(data.getName());
this.status.setText(data.getDescription());
}
}
}
class ScreenOneRows implements ItemInterface{
String sequence_id;
String sequence_description;
String sequence_image;
String sequence_title;
public String getSequence_id() {
return sequence_id;
}
public void setSequence_id(String sequence_id) {
this.sequence_id = sequence_id;
}
public String getSequence_description() {
return sequence_description;
}
public void setSequence_description(String sequence_description) {
this.sequence_description = sequence_description;
}
public String getSequence_image() {
return sequence_image;
}
public void setSequence_image(String sequence_image) {
this.sequence_image = sequence_image;
}
public String getSequence_title() {
return sequence_title;
}
public void setSequence_title(String sequence_title) {
this.sequence_title = sequence_title;
}
@Override
public boolean isRow() {
return true;
}
}
public class MyCustomAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
public static final int ROW_VIEW = 0;
public static final int CHILD_VIEW = 1;
ArrayList<ItemInterface> finalList;
WeakReference<Context> mContextWeakReference;
public MyCustomAdapter(ArrayList<ItemInterface> finalList, Context context) {
this.finalList = finalList;
this.mContextWeakReference = new WeakReference<Context>(context);
}
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
Context context = mContextWeakReference.get();
if (viewType == ROW_VIEW) {
return new SectionViewHolder(LayoutInflater.from(parent.getContext()).inflate(R.layout.item_row, parent, false));
}
return new MyViewHolder(LayoutInflater.from(parent.getContext()).inflate(R.layout.item_child, parent, false), context);
}
@Override
public int getItemViewType(int position) {
if (finalList.get(position).isRow()) {
return ROW_VIEW;
} else {
return CHILD_VIEW;
}
}
@Override
public void onBindViewHolder(final RecyclerView.ViewHolder holder, int position) {
Context context = mContextWeakReference.get();
if (context == null) {
return;
}
if (ROW_VIEW == getItemViewType(position)) {
SectionViewHolder sectionViewHolder = (SectionViewHolder) holder;
ScreenOneRows screenOneRows = (ScreenOneRows) finalList.get(position);
sectionViewHolder.textView.setText(screenOneRows.getSequence_title());
sectionViewHolder.textView2.setText(screenOneRows.getSequence_description());
return;
}
MyViewHolder myViewHolder = (MyViewHolder) holder;
ScreenOneInventory childInventory = (ScreenOneInventory) finalList.get(position);
myViewHolder.textView.setText(childInventory.getName());
myViewHolder.textView2.setText(childInventory.getDescription());
}
@Override
public int getItemCount() {
//return mUsersAndSectionList.size();
return finalList.size();
}
//holder
public class MyViewHolder extends RecyclerView.ViewHolder {
TextView textView, textView2;
ImageView image;
public MyViewHolder(View itemView, final Context context) {
super(itemView);
textView = itemView.findViewById(R.id.textView);
textView2 = itemView.findViewById(R.id.textView2);
image = itemView.findViewById(R.id.image);
}
}
public class SectionViewHolder extends RecyclerView.ViewHolder {
TextView textView, textView2;
ImageView image;
public SectionViewHolder(View itemView) {
super(itemView);
textView = itemView.findViewById(R.id.textView);
textView2 = itemView.findViewById(R.id.textView2);
image = itemView.findViewById(R.id.image);
}
}
}
活动\u main.xml
<RelativeLayout android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.my.stackoverflowrecyclerview.MainActivity"
xmlns:tools="http://schemas.android.com/tools"
xmlns:android="http://schemas.android.com/apk/res/android">
<android.support.v7.widget.RecyclerView
android:id="@+id/rv"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/bg"
/>
</RelativeLayout>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="70dp"
android:layout_marginStart="50dp"
android:background="#FFF"
android:orientation="vertical"
>
<ImageView
android:id="@+id/image"
android:layout_width="70dp"
android:layout_height="70dp"
android:background="@mipmap/ic_launcher_round"/>
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_toEndOf="@+id/image"
android:text="TextView" />
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_marginBottom="12dp"
android:layout_toEndOf="@+id/image"
android:text="TextView" />
</RelativeLayout>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="70dp"
android:layout_marginStart="50dp"
android:background="#FFF"
android:orientation="vertical"
>
<ImageView
android:id="@+id/image"
android:layout_width="70dp"
android:layout_height="70dp"
android:background="@mipmap/ic_launcher_round"/>
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_toEndOf="@+id/image"
android:text="TextView" />
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_marginBottom="12dp"
android:layout_toEndOf="@+id/image"
android:text="TextView" />
</RelativeLayout>
非常感谢@MKY:）