这是一个电子商务应用程序，在我的一项活动中，我可以跟踪我的订单，当我单击收到的订单时，在查看器中显示它的弹出对话框，询问我是否发货，如果需要，它将从firebase中删除订单和产品列表...目前，它正在从firebase中删除订单列表，当我添加时，它也会删除购物车列表。在运行我的应用程序后，当我单击第一个订单并将其标记为出厂时，其移除订单和购物清单很好，但是在第二个项目中，如果我单击以将其标记为出厂，则我的应用程序崩溃。
我在这里添加了调试代码
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.commerce.daily.dailycommerce, PID: 5132
java.lang.IndexOutOfBoundsException: Index: 1, Size: 1
at java.util.ArrayList.get(ArrayList.java:437)
at com.firebase.ui.common.BaseObservableSnapshotArray.getSnapshot(BaseObservableSnapshotArray.java:70)
at com.firebase.ui.database.FirebaseRecyclerAdapter.getRef(FirebaseRecyclerAdapter.java:112)
at com.commerce.daily.dailycommerce.AdminNewOrdersActivity$1$2$1.onClick(AdminNewOrdersActivity.java:104)
at android.support.v7.app.AlertController$AlertParams$3.onItemClick(AlertController.java:1067)
at android.widget.AdapterView.performItemClick(AdapterView.java:318)
at android.widget.AbsListView.performItemClick(AbsListView.java:1165)
at android.widget.AbsListView$PerformClick.run(AbsListView.java:3134)
at android.widget.AbsListView$3.run(AbsListView.java:4049)
at android.os.Handler.handleCallback(Handler.java:789)
at android.os.Handler.dispatchMessage(Handler.java:98)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6541)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)
我的活动在下面
private RecyclerView ordersList;
private DatabaseReference ordersRef;
private DatabaseReference cartRef;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_admin_new_orders);
ordersRef = FirebaseDatabase.getInstance().getReference().child("Orders");
cartRef = FirebaseDatabase.getInstance().getReference().child("Cart List").child("Admin View");
ordersList = findViewById(R.id.orders_list);
ordersList.setLayoutManager(new LinearLayoutManager(this));
populateFeed(); // for start main process in place of on start method to avoid app crash
}
private void populateFeed()
{
FirebaseRecyclerOptions<Products> options1 =
new FirebaseRecyclerOptions.Builder<Products>()
.setQuery(cartRef, Products.class)
.build();
FirebaseRecyclerOptions<AdminOrders> options =
new FirebaseRecyclerOptions.Builder<AdminOrders>()
.setQuery(ordersRef, AdminOrders.class)
.build();
FirebaseRecyclerAdapter<AdminOrders, AdminOrdersViewHolder> adapter =
new FirebaseRecyclerAdapter<AdminOrders, AdminOrdersViewHolder>(options) {
@Override
protected void onBindViewHolder(@NonNull AdminOrdersViewHolder holder, final int position, @NonNull final AdminOrders model)
{
holder.userName.setText("Name:" + model.getName());
holder.userPhoneNumber.setText("Phone:" + model.getPhone());
holder.userTotalPrice.setText("Total Amount = $" + model.getTotalAmount());
holder.userDateTime.setText("Order at:" + model.getDate() + "," + model.getTime());
holder.userShippingAddress.setText("Shipping Address:" + model.getAddress() + " ," + model.getCity());
holder.paymentStatus.setText("Payment Status:" + model.getPaymentState() );
holder.paymentID.setText("Payment ID :" + model.getPaymentID());
holder.ShowOrdersBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v)
{
String uID = getRef(position).getKey();
Intent intent = new Intent(AdminNewOrdersActivity.this, AdminUserProductsActivity.class);
intent.putExtra("uid", uID);
startActivity(intent);
}
});
holder.itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v)
{
CharSequence options[] = new CharSequence[]
{
"Yes",
"No"
};
AlertDialog.Builder builder = new AlertDialog.Builder(AdminNewOrdersActivity.this);
builder.setTitle("Have you shipped this order products ?");
builder.setItems(options, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which)
{
if(which==0)
{
String uID = getRef(position).getKey();
RemoveOrder(uID);
}
else
{
finish();
}
}
});
builder.show();
}
});
}
@NonNull
@Override
public AdminOrdersViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.orders_layout, parent, false);
return new AdminOrdersViewHolder(view);
}
};
ordersList.setAdapter(adapter);
adapter.startListening();
}
public static class AdminOrdersViewHolder extends RecyclerView.ViewHolder
{
public TextView userName, userPhoneNumber, userTotalPrice, userDateTime, userShippingAddress, paymentStatus, paymentID;
public Button ShowOrdersBtn;
public AdminOrdersViewHolder(View itemView)
{
super(itemView);
paymentStatus = itemView.findViewById(R.id.payment_status);
paymentID = itemView.findViewById(R.id.payment_id);
userName = itemView.findViewById(R.id.order_user_name);
userPhoneNumber = itemView.findViewById(R.id.order_phone_number);
userTotalPrice = itemView.findViewById(R.id.order_total_price);
userDateTime = itemView.findViewById(R.id.order_date_time);
userShippingAddress = itemView.findViewById(R.id.order_address_city);
ShowOrdersBtn = itemView.findViewById(R.id.show_all_products_btn);
}
}
private void RemoveOrder(final String uID)
{
ordersRef.child(uID).removeValue().addOnCompleteListener(new OnCompleteListener<Void>() {
@Override
public void onComplete(@NonNull Task<Void> task)
{
if(task.isSuccessful())
{
RemoveCartItem(uID);
}
}
});
}
private void RemoveCartItem(String uID)
{
cartRef.child(uID).removeValue();
}
}