can not delete from the database - android-studio

Question

please help me to find out where is the trouble in my code, i tried to set onclick listener to delete the item from the database, howerver i does nothing, i checked the code again and again but i didn't find out where in the code that cause the problem.
please help me
thanks
The layout
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:clipChildren="false"
android:clipToPadding="false"
android:padding="10dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_toLeftOf="#id/btn_delete">
<TextView
android:id="#+id/tv_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Title"
android:textColor="#color/white"
android:textSize="20sp"
android:gravity="center"
android:padding="8dp"
/>
<TextView
android:id="#+id/tv_content"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Content"
android:textSize="20sp"
android:gravity="start"
android:padding="10dp"
android:textColor="#color/white" />
</LinearLayout>
<Button
android:id="#+id/btn_delete"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="delete"
android:backgroundTint="#color/transparent"
android:textColor="#color/white"
android:layout_alignParentEnd="true"
android:layout_marginEnd="40dp"
android:layout_alignParentRight="true"/>
</RelativeLayout>
the adapter
package com.haki.mysimplehakidiarynotes.adapters;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;
import com.haki.mysimplehakidiarynotes.InterfaceDeleteListener;
import com.haki.mysimplehakidiarynotes.objects.ItemsObject;
import com.haki.mysimplehakidiarynotes.R;
import java.util.ArrayList;
public class ItemsAdapter extends RecyclerView.Adapter<ItemsAdapter.ItemViewHolder>{
private Context mContext;
private ArrayList<ItemsObject> arrayList;
private InterfaceDeleteListener deleteListener;
public ItemsAdapter(Context mContext, InterfaceDeleteListener deleteListener) {
this.mContext = mContext;
this.deleteListener = deleteListener;
}
public void setData(ArrayList<ItemsObject> arrayList){
this.arrayList = arrayList;
notifyDataSetChanged();
}
#NonNull
#Override
public ItemViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).
inflate(R.layout.layout_items, parent, false);
return new ItemViewHolder(view);
}
#Override
public void onBindViewHolder(#NonNull ItemViewHolder holder, int position) {
ItemsObject object =arrayList.get(position);
if (object==null){
return;
}
holder.txtTitle.setText(object.getTitle());
holder.txtContent.setText(object.getContent());
holder.btn_delete.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
deleteListener.onClickDeleteListen(object);
}
});
}
#Override
public int getItemCount() {
if (arrayList!=null){
return arrayList.size();
}
return 0;
}
public class ItemViewHolder extends RecyclerView.ViewHolder {
private TextView txtTitle;
private TextView txtContent;
private Button btn_delete;
public ItemViewHolder(#NonNull View itemView) {
super(itemView);
txtTitle =itemView.findViewById(R.id.tv_title);
txtContent =itemView.findViewById(R.id.tv_content);
btn_delete = itemView.findViewById(R.id.btn_delete);
}
}
}
the main
package com.haki.mysimplehakidiarynotes.fragments.diary_tabs;
import android.os.Bundle;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.haki.mysimplehakidiarynotes.InterfaceDeleteListener;
import com.haki.mysimplehakidiarynotes.adapters.ItemsAdapter;
import com.haki.mysimplehakidiarynotes.databases.DiaryDatabase;
import com.haki.mysimplehakidiarynotes.objects.ItemsObject;
import com.haki.mysimplehakidiarynotes.R;
import java.util.ArrayList;
public class DiaryLogFragment extends Fragment implements InterfaceDeleteListener {
private RecyclerView recyclerView;
private ArrayList<ItemsObject> arrayList = new ArrayList<>();
private ItemsAdapter adapter;
public DiaryLogFragment() {
}
public static DiaryLogFragment newInstance() {
DiaryLogFragment fragment = new DiaryLogFragment();
return fragment;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_diary_log, container, false);
}
#Override
public void onViewCreated(#NonNull View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
recyclerView = view.findViewById(R.id.rcv_items);
//arrayList.add(new ItemsObject("thử nghiệm","nội dung thử nghiệm"));
arrayList = (ArrayList<ItemsObject>) DiaryDatabase.getInstance(getActivity()).userDAO().getAllData();
adapter = new ItemsAdapter(getActivity(), this::onClickDeleteListen);
adapter.setData(arrayList);
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getActivity()
,LinearLayoutManager.VERTICAL, false);
recyclerView.setLayoutManager(linearLayoutManager);
recyclerView.setAdapter(adapter);
}
#Override
public void onResume() {
super.onResume();
arrayList = (ArrayList<ItemsObject>) DiaryDatabase.getInstance(getActivity()).userDAO().getAllData();
adapter.setData(arrayList);
}
#Override
public void onClickDeleteListen(ItemsObject object) {
DiaryDatabase.getInstance(getActivity()).userDAO().delete(object);
arrayList = (ArrayList<ItemsObject>) DiaryDatabase.getInstance(getActivity()).userDAO().getAllData();
adapter.setData(arrayList);
}
}
the interface
package com.haki.mysimplehakidiarynotes;
import com.haki.mysimplehakidiarynotes.objects.ItemsObject;
public interface InterfaceDeleteListener {
void onClickDeleteListen(ItemsObject object);
}
the Dao
package com.haki.mysimplehakidiarynotes.databases;
import androidx.room.Dao;
import androidx.room.Delete;
import androidx.room.Insert;
import androidx.room.Query;
import com.haki.mysimplehakidiarynotes.objects.ItemsObject;
import java.util.List;
#Dao
public interface DiaryDAO {
//Bước 1. Tạo insert vào cơ sở dữ liệu
#Insert
void insert(ItemsObject itemsObject);
#Query("SELECT * FROM user order by id DESC")
List<ItemsObject> getAllData();
#Delete
void delete(ItemsObject object);
}
i checked the code many times, however i didn't findout where is the cause that doen'st delete the item from the database