Firebase获取特别的数据并显示
我有请求数据，并想显示请求表，当我使用IdSeller 11登录时，请求数据出现时也具有idPenjual 11，而当使用idPerjual 098时，可以显示具有idPenjual 098的请求数据，
您能帮我吗？我已经停留了1周
"Request" : {
"1531380960725" : {
"alamat" : "fff",
"deskripsi" : "dd",
"nama" : "bintang",
"noHp" : "098",
"produk" : [ {
"diskon" : "90",
"harga" : "000",
"idPenjual" : "098",
"idProduk" : "-LH4DK-bl_8RlK4L5d-u",
"idToko" : "-LH45THjAkwSE14cllr2",
"jumlah" : "1",
"namaProduk" : "Hhh"
} ],
"status" : "0"
},
"1531493130828" : {
"alamat" : "aaa",
"deskripsi" : "dd",
"nama" : "bintang",
"noHp" : "098",
"produk" : [ {
"diskon" : "90",
"harga" : "000",
"idPenjual" : "098",
"idProduk" : "-LH4DK-bl_8RlK4L5d-u",
"idToko" : "-LH45THjAkwSE14cllr2",
"jumlah" : "1",
"namaProduk" : "Hhh"
}, {
"diskon" : "0",
"harga" : "90",
"idPenjual" : "11",
"idProduk" : "-LH6TwCuUqmzp2idoGRn",
"idToko" : "-LH3qtCf-QeS2CxSy6Cu",
"jumlah" : "2",
"namaProduk" : "ghg"
} ],
"status" : "0"
}
这是我的课程：）
我有这样的课程
public class OrderStatus extends AppCompatActivity {
RecyclerView recyclerView;
RecyclerView.LayoutManager layoutManager;
FirebaseRecyclerAdapter<Request, OrderViewHolder> adapter;
private ArrayList<String> idTokorequest = new ArrayList<>();
private ArrayAdapter<String> arrayAdapter;
FirebaseDatabase database;
DatabaseReference request, newIdToko;
String idUser="";
Button btnSelect,btnSelect1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_order_status);
//Firebase
database = FirebaseDatabase.getInstance();
request = database.getReference("Request");
newIdToko = database.getReference("produk");
recyclerView = (RecyclerView)findViewById(R.id.listOrders);
recyclerView.setHasFixedSize(true);
layoutManager = new LinearLayoutManager(this);
recyclerView.setLayoutManager(layoutManager);
if (getIntent() !=null)
idUser = getIntent().getStringExtra("RuserId");
if (!idUser.isEmpty())
loadOrder(idUser); //mendapatkan data pesanan
}
private void loadOrder(final String idUser) {
final DatabaseReference req2 = request;
//You can use the single or the value.. depending if you want to keep track
req2.addListenerForSingleValueEvent(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
for (DataSnapshot snap: dataSnapshot.getChildren()) {
for (DataSnapshot snap2: snap.getChildren()) {
for(DataSnapshot snap3: snap2.getChildren()) {
for (DataSnapshot snap4: snap3.getChildren()) {
if (snap4.getKey().equals("idPenjual") && snap4.getValue().equals(idUser)) {
Log.d(snap4.getKey(), snap4.getValue() + "");
adapter = new FirebaseRecyclerAdapter<Request, OrderViewHolder>(
Request.class,
R.layout.order_layout,
OrderViewHolder.class,
req2
) {
@Override
protected void populateViewHolder(OrderViewHolder viewHolder, Request model, int position) {
//mendapatkan status pesanan
viewHolder.txtOrderId.setText(adapter.getRef(position).getKey());
viewHolder.txtNamaPemesan.setText(model.getNama());
viewHolder.txtNamaProduk.setText(model.getNamaProduk());
viewHolder.txtOrderNoHP.setText(model.getNoHp());
viewHolder.txtOrderAlamat.setText(model.getAlamat());
viewHolder.txtOrderStatus.setText(Common.convertCodeToStatus(model.getStatus()));
viewHolder.setItemClickListener(new ItemClickListener() {
@Override
public void onClick(View view, int position, boolean isLongClick) {
//agar tidak eror saat terpencet
}
});
}
};
adapter.notifyDataSetChanged();
recyclerView.setAdapter(adapter);
}
}
}
}
}
}
@Override
public void onCancelled(DatabaseError databaseError) {
}
});
}
@Override
public boolean onContextItemSelected(MenuItem item) {
if(item.getTitle().equals(Common.UPDATE)){
showUpdateStatus(adapter.getRef(item.getOrder()).getKey(),adapter.getItem(item.getOrder()));
}else if(item.getTitle().equals(Common.DELETE)){
hapus(adapter.getRef(item.getOrder()).getKey());
}
return super.onContextItemSelected(item);
}
private void hapus(String key) {
request.child(key).removeValue();
}
private void showUpdateStatus(String key, final Request item) {
AlertDialog.Builder alertDialog = new AlertDialog.Builder(OrderStatus.this);
alertDialog.setTitle("Silahkan Pilih");
alertDialog.setMessage("Pilih proses");
LayoutInflater inflater = this.getLayoutInflater();
View add_menu_layout = inflater.inflate(R.layout.update_order_layout, null);
btnSelect = add_menu_layout.findViewById(R.id.btnSelect);
btnSelect1 = add_menu_layout.findViewById(R.id.btnSelect1);
alertDialog.setView(add_menu_layout);
alertDialog.setIcon(R.drawable.ic_update_black_24dp);
//event Button
btnSelect.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
item.setStatus("1");
}
});
btnSelect1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
item.setStatus("2");
}
});
final String localKey = key;
//Set Button
alertDialog.setPositiveButton("YA", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
item.getStatus();
request.child(localKey).setValue(item);
}
});
//Set negative
alertDialog.setNegativeButton("Batal", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
alertDialog.show();
}
}