Я могу получить ключ и показать в Log.d, но это не отображается в RecyclerView. Что с ним не так?
HistoryActivity.java, в котором содержится мой recyclerView:
public class HistoryActivity extends AppCompatActivity {
FirebaseFirestore mFirestore;
FirebaseAuth firebaseAuth;
FirebaseDatabase database;
RecyclerView mHisList;
ArrayList<PreviousLst> history;
adt_rv_HisList adtRvHisList;
TextView ptName;
TextView ptPort;
@Override
protected void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_history);
getSupportActionBar().setSubtitle("History");
Intent it = getIntent();
String patName = it.getStringExtra("nm");
String patID = it.getStringExtra("idpat");
String portNum = it.getStringExtra("pNum");
String regisDate = it.getStringExtra("rdate");
ptName = findViewById(R.id.txName);
ptPort = findViewById(R.id.portpassValue);
ptName.setText(patName);
ptPort.setText(portNum);
history = new ArrayList<>();
setupRecyclerView();
setupFireBase();
loadDataFromDatabase(portNum);
}
private void setupFireBase() {
mFirestore = FirebaseFirestore.getInstance();
firebaseAuth = FirebaseAuth.getInstance();
database = FirebaseDatabase.getInstance();
}
private void setupRecyclerView() {
mHisList = findViewById(R.id.rv_prev_lst);
mHisList.setHasFixedSize(true);
mHisList.setLayoutManager(new LinearLayoutManager(this));
mHisList.setAdapter(adtRvHisList);
}
public void loadDataFromDatabase(String portNum) {
if(history.size()>0)
history.clear();
DatabaseReference myRef;
DatabaseReference passref;
switch (portNum){
case "Huang-Yai0002":
String p2 = "NETEKG-Huang-Yai0002";
myRef = database.getReference("MACHINE");
passref = myRef.child(p2).child("value");
passref.addValueEventListener(new ValueEventListener(){
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
for (DataSnapshot postSnapshot: dataSnapshot.getChildren()) {
String keydate = postSnapshot.getKey();
Log.d(TAG, "Child are: " + keydate );
PreviousLst previousLst = new PreviousLst(keydate);
history.add(previousLst);
}
adtRvHisList = new adt_rv_HisList(HistoryActivity.this, history);
mHisList.setAdapter(adtRvHisList);
}
@Override
public void onCancelled(DatabaseError error) {
Log.w(TAG, "Failed to read value.", error.toException());
}
});
break;
case "Huang-Yai0003":
String p3 = "NETEKG-Huang-Yai0003";
myRef = database.getReference("MACHINE");
passref = myRef.child(p3).child("value");
passref.addValueEventListener(new ValueEventListener(){
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
for (DataSnapshot postSnapshot: dataSnapshot.getChildren()) {
String keydate = postSnapshot.getKey();
Log.d(TAG, "Child are: " + keydate );
PreviousLst previousLst = new PreviousLst(postSnapshot.getKey());
history.add(previousLst);
}
adtRvHisList = new adt_rv_HisList(HistoryActivity.this, history);
mHisList.setAdapter(adtRvHisList);
}
@Override
public void onCancelled(DatabaseError error) {
Log.w(TAG, "Failed to read value.", error.toException());
}
});
break;
default:
Log.d(TAG, "Value is: " + portNum);
Toast.makeText(getApplicationContext(),"Error...",Toast.LENGTH_LONG).show();
break;
}
}
}
adt_rv_HisList.java Адаптер:
public class adt_rv_HisList extends RecyclerView.Adapter<adtrvHisListViewHolder> {
HistoryActivity historyActivity;
ArrayList<PreviousLst> history;
public adt_rv_HisList(HistoryActivity historyActivity, ArrayList<PreviousLst> history) {
this.history = history;
this.historyActivity = historyActivity;
}
@NonNull
@Override
public adtrvHisListViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
View v = LayoutInflater.from(historyActivity.getBaseContext()).inflate(R.layout.hislist_item, viewGroup, false);
return new adtrvHisListViewHolder(v);
}
@Override
public void onBindViewHolder(@NonNull adtrvHisListViewHolder holder, int position) {
holder.hdate.setText(history.get(position).getHisDate());
holder.itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
dialogView();
}
});
}
private void dialogView() {
final Dialog dia = new Dialog(historyActivity);
dia.setContentView(R.layout.dialog_ask_view);
dia.show();
Button pvgraph = (Button)dia.findViewById(R.id.bt_pvgraph);
Button pvhr = (Button)dia.findViewById(R.id.bt_pvhrate);
Button cc = (Button)dia.findViewById(R.id.btn_cancel);
cc.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
dia.dismiss();
}
});
pvgraph.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
dia.dismiss();
Intent it = new Intent(historyActivity, ViewgraphActivity.class);
historyActivity.startActivity(it);
}
});
pvhr.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
dia.dismiss();
Intent it = new Intent(historyActivity, ViewHRActivity.class);
historyActivity.startActivity(it);
}
});
}
@Override
public int getItemCount() {
return 0;
}
}
adtrvHisListViewHolder.java Содержит ViewHolder:
public class adtrvHisListViewHolder extends RecyclerView.ViewHolder {
public TextView hdate;
public adtrvHisListViewHolder(View itemView) {
super(itemView);
hdate = itemView.findViewById(R.id.his_date);
}
}
PreviousLst.java - класс модели для моего переработчика. Вид:
public class PreviousLst {
String HisDate;
public PreviousLst(String HisDate){
this.HisDate = HisDate;
}
public PreviousLst(){
}
public String getHisDate() {
return HisDate;
}
public void setHisDate(String hisDate) {
HisDate = hisDate;
}
}
Это мой ключ, который я получаю и показываю в Log.d
- D / ContentValues: Ребенок: ЧАСТОТА СЕРДЦА
- D / ContentValues: Ребенок: LEAD 1
- Ребенок: LEAD 2
- Ребенок: LEAD 3
- Ребенок: LEAD 4
- Ребенок: LEAD 5
- Ребенок: LEAD 6
но в App это не работает.
введите описание изображения здесь