我需要NestedRecyclerView的帮助，我遵循此web进行嵌套的recyclerview的工作，我使用NestedRecyclerView创建了一个表单，单击了提交按钮时，我将从{{1 }}
我将此代码用于父级recyclerview中的recyclerView子级。
NestedRecyclerView该代码仅适用于单个public class NewGradingActivity extends AppCompatActivity {
private SQLiteHandler db;
private static final String TAG = NewGradingActivity.class.getSimpleName();
RecyclerView event_recycler_view_parent, grading_child;
private ProgressDialog pDialog;
private Button btnSimpan, btnCancel;
Intent intent;
String token, asset_type, id;
private NewGradingActivity.ListAdapter mListadapter;
private TextView idGrading,assetDesc,platKendaraan,manYear,kmGrading,warna,chassisNo,machineNo,receiveDate;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_new_grading);
recyclerView_child = (RecyclerView) findViewById(R.id.grading_child);
btnSimpan = (Button) findViewById(R.id.gradingsimpan);
btnCancel = (Button) findViewById(R.id.gradingCancel);
idGrading = (TextView) findViewById(R.id.idGrading);
assetDesc = (TextView) findViewById(R.id.assetDesc);
platKendaraan = (TextView) findViewById(R.id.platKendaraan);
manYear = (TextView) findViewById(R.id.manYear);
kmGrading = (TextView) findViewById(R.id.kmGrading);
warna = (TextView) findViewById(R.id.warna);
chassisNo = (TextView) findViewById(R.id.chassisNo);
machineNo = (TextView) findViewById(R.id.machineNo);
receiveDate = (TextView) findViewById(R.id.receiveDate);
event_recycler_view_parent = (RecyclerView) findViewById(R.id.category_utama);
// SqLite database handler
db = new SQLiteHandler(this.getApplicationContext());
// Fetching user details from sqlite
HashMap<String, String> user = db.getUserDetails();
String name = user.get("name");
token = user.get("token");
Intent intent = getIntent();
id = intent.getStringExtra("id");
String kik = intent.getStringExtra("kik");
String asset_desc = intent.getStringExtra("asset_desc");
String plat = intent.getStringExtra("plat");
String man_year = intent.getStringExtra("man_year");
String colour = intent.getStringExtra("colour");
String chasis = intent.getStringExtra("chasis");
String machine = intent.getStringExtra("machine");
String receive_date = intent.getStringExtra("receive_date");
asset_type = intent.getStringExtra("asset_type");
idGrading.setText(kik);
assetDesc.setText(asset_desc);
platKendaraan.setText(plat);
manYear.setText(man_year);
kmGrading.setText("");
warna.setText(colour);
chassisNo.setText(chasis);
machineNo.setText(machine);
receiveDate.setText(receive_date);
loadQuestionGrading();
btnCancel.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
cancelCheck(id);
}
});
}
@Override
public void onBackPressed() {
Toast.makeText(this, "Press Cancel for back to list", Toast.LENGTH_SHORT).show();
}
private void cancelCheck(final String idwarehouse) {
String tag_string_req = "req_cancel";
StringRequest strReq = new StringRequest(Request.Method.POST,
AppConfig.URL_CANCEL_GRADING, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
Log.d(TAG, "Cancel Response: " + response.toString());
try {
JSONObject jObj = new JSONObject(response);
Log.d(TAG, "obj: " + jObj.toString());
String error = jObj.getString("status");
Log.d(TAG, "obj: " + error);
// Check for error node in json
if (error != "1") {
// Launch main activity
Intent intent = new Intent(NewGradingActivity.this,
MainActivity.class);
startActivity(intent);
finish();
} else {
// Error in login. Get the error message
String errorMsg = jObj.getString("message");
Toast.makeText(getApplicationContext(),
errorMsg, Toast.LENGTH_LONG).show();
}
} catch (JSONException e) {
// JSON error
e.printStackTrace();
Toast.makeText(getApplicationContext(), "Json error: " + e.getMessage(), Toast.LENGTH_LONG).show();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.e(TAG, "Cancel Error: " + error.getMessage());
Toast.makeText(getApplicationContext(),
"Cancel Failed", Toast.LENGTH_LONG).show();
Intent intent = new Intent(NewGradingActivity.this,
MainActivity.class);
startActivity(intent);
finish();
}
}) {
@Override
protected Map<String, String> getParams() {
// Posting parameters to login url
Map<String, String> params = new HashMap<String, String>();
params.put("id", idwarehouse);
Log.e(TAG, "id: " + idwarehouse);
return params;
}
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
Map<String, String> headers = new HashMap<String, String>();
headers.put("Authorization", "Bearer "+token);
Log.e(TAG, "token: " + token);
return headers;
}
};
AppController.getInstance().addToRequestQueue(strReq, tag_string_req);
}
public class ListAdapter extends RecyclerView.Adapter<NewGradingActivity.ListAdapter.MyViewHolder> {
//private List<Movie> moviesList;
private DataCategoryInformation dataCategoryInformation;
private Activity activity;
public ListAdapter(DataCategoryInformation dataCategoryInformation,Activity activity) {
this.dataCategoryInformation = dataCategoryInformation;
this.activity = activity;
}
@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View itemView = LayoutInflater.from(parent.getContext()).inflate(R.layout.parent_grading, parent, false);
return new MyViewHolder(itemView);
}
@Override
public void onBindViewHolder(MyViewHolder holder, int position) {
DataCategory dataCategory = dataCategoryInformation.getCategoryList().get(position);
holder.event_list_parent_date.setText(dataCategory.getCategory());
LinearLayoutManager hs_linearLayout = new LinearLayoutManager(this.activity, LinearLayoutManager.VERTICAL, false);
holder.event_recycler_view_child.setLayoutManager(hs_linearLayout);
holder.event_recycler_view_child.setHasFixedSize(true);
EventListChildAdapter eventListChildAdapter = new EventListChildAdapter(this.activity,dataCategoryInformation.getCategoryList().get(position).getQuestionList());
holder.event_recycler_view_child.setAdapter(eventListChildAdapter);
}
@Override
public int getItemCount() {
return dataCategoryInformation.getCategoryList().size();
}
public class MyViewHolder extends RecyclerView.ViewHolder {
public TextView event_list_parent_date;
public RecyclerView event_recycler_view_child;
public MyViewHolder(View view) {
super(view);
event_list_parent_date = (TextView) view.findViewById(R.id.title_category);
event_recycler_view_child = (RecyclerView)view.findViewById(R.id.grading_child);
}
}
public class EventListChildAdapter extends RecyclerView.Adapter<EventListChildAdapter.MyViewHolder> {
private DataCategoryInformation dataCategoryInformation;
private ArrayList<DataQuestionGrading> partsArrayList;
private Activity activity;
public EventListChildAdapter(Activity activity,ArrayList<DataQuestionGrading> partsArrayList) {
this.partsArrayList = partsArrayList;
this.activity = activity;
}
@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View itemView = LayoutInflater.from(parent.getContext())
.inflate(R.layout.list_grading, parent, false);
return new MyViewHolder(itemView);
}
@Override
public void onBindViewHolder(final MyViewHolder holder,final int position) {
final DataQuestionGrading dataQuestionGrading = partsArrayList.get(position);
holder.idQue.setText(dataQuestionGrading.getIdQue());
holder.persenGrading.setText(dataQuestionGrading.getPercentase());
holder.gradingPart.setText(dataQuestionGrading.getPart_name());
}
@Override
public int getItemCount() {
return partsArrayList.size();
}
public class MyViewHolder extends RecyclerView.ViewHolder {
public TextView idQue;
public TextView persenGrading;
public TextView gradingPart;
public Spinner kondisiGrading;
public EditText noteGrading;
public MyViewHolder(View view) {
super(view);
idQue = (TextView) view.findViewById(R.id.idGrading);
persenGrading = (TextView) view.findViewById(R.id.persenGrading);
gradingPart = (TextView) view.findViewById(R.id.gradingPart);
kondisiGrading = (Spinner) view.findViewById(R.id.kondisiGrading);
noteGrading = (EditText) view.findViewById(R.id.noteGrading);
btnSimpan.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
JSONArray jsonChek = new JSONArray();
for(int x = 0; x < dataCategory.getCategoryList().size(); x++) {
for (int i = 0; i < partsArrayList.size(); i++) {
String persen = persenGrading.getText().toString();
String pilihkondisi = kondisiGrading.getSelectedItem().toString();
String cek;
if (pilihkondisi.equals("OKE")) {
cek = "1";
} else if (pilihkondisi.equals("BERMASALAH")) {
cek = "2";
} else {
cek = "3";
}
String note = noteGrading.getText().toString();
String not;
if (note.matches("")) {
not = "-";
} else {
not = note;
}
String id = idQue.getText().toString();
JSONObject part = new JSONObject();
try {
part.put("id", id);
part.put("condition", cek);
part.put("notes", not);
part.put("percentage", persen);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
jsonChek.put(part);
}
}
Log.e("json1", jsonChek.toString());
}
});
}
}
}
}
public void loadQuestionGrading(){
//creating a string request to send request to the url
StringRequest stringRequest = new StringRequest(Request.Method.GET, AppConfig.URL_QUESTION_RECEIVE+"?asset_type="+asset_type+"&inspection_name=Self Grading",
new Response.Listener<String>() {
@Override
public void onResponse(String response) {
ArrayList<DataCategory> categoryArrayList;
DataCategoryInformation dataCategoryInformation = new DataCategoryInformation();
try {
//getting the whole json object from the response
JSONObject obj = new JSONObject(response);
//we have the array named hero inside the object
//so here we are getting that json array
JSONArray queArray = obj.getJSONArray("data");
categoryArrayList = new ArrayList<>();
for (int i=0;i < queArray.length();i++){
DataCategory dataCategory = new DataCategory();
JSONObject categoryName = queArray.getJSONObject(i);
String category_name = categoryName.getString("category_name");
dataCategory.setCategory(category_name);
JSONArray jsonArrayparts = categoryName.getJSONArray("parts");
ArrayList<DataQuestionGrading> partsArrayList = new ArrayList<>();
for (int indexPart=0;indexPart<jsonArrayparts.length();indexPart++){
DataQuestionGrading dataQuestionGrading = new DataQuestionGrading();
JSONObject eventObj = jsonArrayparts.getJSONObject(indexPart);
dataQuestionGrading.setIdQue(eventObj.getString("id"));
dataQuestionGrading.setPart_code(eventObj.getString("part_code"));
dataQuestionGrading.setPart_name(eventObj.getString("part_name"));
dataQuestionGrading.setAmount(eventObj.getString("amount"));
dataQuestionGrading.setPercentase(eventObj.getString("percentage"));
partsArrayList.add(dataQuestionGrading);
}
dataCategory.setEventsArrayList(partsArrayList);
categoryArrayList.add(dataCategory);
}
dataCategoryInformation.setCategoryList(categoryArrayList);
Log.d("message",dataCategoryInformation.toString());
mListadapter = new ListAdapter(dataCategoryInformation,NewGradingActivity.this);
event_recycler_view_parent.setHasFixedSize(true);
RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(getApplicationContext());
event_recycler_view_parent.setLayoutManager(mLayoutManager);
event_recycler_view_parent.setItemAnimator(new DefaultItemAnimator());
event_recycler_view_parent.setAdapter(mListadapter);
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
//displaying the error in toast if occurrs
Toast.makeText(getApplicationContext(), error.getMessage(), Toast.LENGTH_SHORT).show();
}
});
//creating a request queue
RequestQueue requestQueue = Volley.newRequestQueue(this);
//adding the string request to request queue
requestQueue.add(stringRequest);
}
}
，但是在嵌套的recyclerView中仅显示最后一行，我需要针对此问题提出建议。
答案 0 :(得分：0)
只需删除此行
View view = recyclerView_child.getChildAt(i);
并像这样使用它，您已经有了view参数中的MyViewHolder
public MyViewHolder(View view) {
super(view);
idQue = (TextView) view.findViewById(R.id.idGrading);
persenGrading = (TextView) view.findViewById(R.id.persenGrading);
gradingPart = (TextView) view.findViewById(R.id.gradingPart);
kondisiGrading = (Spinner) view.findViewById(R.id.kondisiGrading);
noteGrading = (EditText) view.findViewById(R.id.noteGrading);
btnSimpan.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
for (int i = 0; i < dataList.size(); i++){
EditText notes = (EditText) view.findViewById(R.id.partEdt);
TextView ids = (TextView) view.findViewById(R.id.idPart_);
CheckBox ceks = (TextView) view.findViewById(R.id.partChk);
String note = notes.getText().toString();
String id = ids.getText().toString();
String ceks = ceks.getText().toString();
}
}
});
}