complete perpect search in NoSQL

 package com.example.vip
 
+import android.content.Context
+import android.content.SharedPreferences
 import android.os.Bundle
 import androidx.appcompat.app.AppCompatActivity
+import kotlinx.android.synthetic.main.activity_account_settings.*
 
 class AccountSettingActivity : AppCompatActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_account_settings)
+
+        val prof: SharedPreferences = getSharedPreferences("policy_key", Context.MODE_PRIVATE)
+        val editor: SharedPreferences.Editor=prof.edit()
+
+        input_db.setOnClickListener{
+            editor.putString("0", "[신한금융그룹] 신한 희망사회프로젝트 위기가정 재기지원사업 2년차 사업(2019년 5월~2020년 4월)")
+            editor.putString("1", "2020년 동계 아름드리 대학생 해외봉사단원 모집")
+            editor.putString("2", "초록우산 어린이재단 인재양성사업 - 2020 아이리더 모집공고")
+            editor.putString("3", "(열매나눔복지재단, 처갓집양념치킨)2019 저소득가구 창업지원사업 처갓집양념치킨 창업자 모집공고(5.31-)")
+            editor.putString("4", "[2017년도] 예비부부교실 / 신혼부부교실 : 연간일정")
+            editor.putString("5", "신생아지원")
+            editor.putString("6", "성폭력피해아동청소년 전용쉼터운영지원")
+            editor.putString("7", "국가유공자등취업지원")
+            editor.putString("8", "결혼이민자 통번역 서비스")
+            editor.putString("9", "한부모가족자녀 교육비 지원")
+            editor.commit()
+        }
     }
 }
\ No newline at end of file

@@ -9,6 +9,7 @@ import androidx.core.content.ContextCompat.getSystemService
 import android.icu.lang.UCharacter.GraphemeClusterBreak.T
 import android.view.View
 import android.content.Intent
+import android.content.SharedPreferences
 import android.util.Log
 import android.view.inputmethod.InputMethodManager
 import android.widget.*
@@ -17,7 +18,10 @@ import com.google.firebase.database.*
 import com.google.firebase.database.DatabaseReference
 import com.google.firebase.database.FirebaseDatabase
 import kotlinx.android.synthetic.main.search.*
-
+import com.google.firebase.database.DatabaseError
+import com.google.firebase.database.DataSnapshot
+import com.google.firebase.database.ValueEventListener
+import androidx.fragment.app.FragmentActivity
 
 
 data class MemoItem(
@@ -34,6 +38,9 @@ class SearchActivity : AppCompatActivity() {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.search)
 
+        val prof: SharedPreferences = getSharedPreferences("policy_key", Context.MODE_PRIVATE)
+        val editor: SharedPreferences.Editor=prof.edit()
+
         val searchList = ArrayList<SearchItem>()
         val no_search : ImageView = findViewById(R.id.no_matching) // 노서치이미지
 
@@ -55,14 +62,66 @@ class SearchActivity : AppCompatActivity() {
 
         searchView.setOnQueryTextListener(object : SearchView.OnQueryTextListener {
             override fun onQueryTextSubmit(query: String): Boolean {
+
+                searchList.clear()
                 // 검색 버튼이 눌러졌을 때 이벤트 처리
                 val layout : LinearLayout = findViewById(R.id.hashtag_linear)
                 layout.setVisibility(View.GONE)
 
                 CloseKeyboard()
+
+                // DB 내 목록에서 맞는거 찾는 부분
+                val arr = arrayOf(0,1,2,3,4,5,6,7,8,9)
+                val key = arrayListOf<String>()
+                for (i in arr) {
+                    val temp = prof.getString("$i", "fail")
+                    val regex = "$query".toRegex()
+                    val matchResult : MatchResult? = regex.find(temp.toString())
+                    if (matchResult != null) {
+                        key.add(temp.toString())
+                    }
+                }
+                for (i in key) {
+                    val key_query = database.orderByChild("Policy").equalTo("$i")
+                    key_query.addListenerForSingleValueEvent(object : ValueEventListener {
+                        override fun onDataChange(dataSnapshot: DataSnapshot) {
+                            //Toast.makeText(getBaseContext(), dataSnapshot.getValue().toString(), Toast.LENGTH_SHORT).show()
+
+
+                                no_search.setVisibility(View.GONE)
+                                policy_scroll_view.setVisibility(View.VISIBLE)
+
+
+                            for (memoSnapshot in dataSnapshot.children){
+                                val memo = memoSnapshot.getValue(MemoItem::class.java)
+
+                                searchList.add(
+                                    SearchItem(
+                                        ContextCompat.getDrawable(this@SearchActivity, R.drawable.image01)!!, memo!!.Policy
+                                    )
+                                )
+                            }
+                            val adapter=SearchAdapter(searchList)
+                            searchRecyclerView.adapter=adapter
+
+                        }
+
+                        override fun onCancelled(p0: DatabaseError) {
+                        }
+                    })
+                }
+                if (key.size == 0) {
+                        policy_scroll_view.setVisibility(View.GONE)
+                        no_search.setVisibility(View.VISIBLE)
+
+                }
+                //////////
+
+
+/*
                 database.orderByChild("Policy").startAt("$query").endAt("$query"+"\uf8ff").addListenerForSingleValueEvent(object : ValueEventListener {
                     override fun onCancelled(p0: DatabaseError) {
-                        Toast.makeText(this@SearchActivity, "실패부분 : $query", Toast.LENGTH_SHORT).show()
+                        Toast.makeText(this@SearchActivity, "실패 : $query", Toast.LENGTH_SHORT).show()
                     }
                     override fun onDataChange(dataSnapshot: DataSnapshot) {
                         if (dataSnapshot.exists() == false){ // 값 없을 때
@@ -86,14 +145,15 @@ class SearchActivity : AppCompatActivity() {
                         val adapter=SearchAdapter(searchList)
                         searchRecyclerView.adapter=adapter
                     }
-                })
-                searchList.clear()
+                })*/
 
                 return true
+
             }
 
 
 
+
             override fun onQueryTextChange(newText: String): Boolean {
                 // 검색어가 변경되었을 때 이벤트 처리
                 return false

@@ -78,6 +78,12 @@
             android:text="회원 탈퇴 (준비중)"
             android:textSize="17dp" />
 
+        <Button
+            android:id="@+id/input_db"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="디비에 넣기" />
+
     </LinearLayout>
 
     <com.google.android.material.bottomnavigation.BottomNavigationView