[APP] Add Basic SearchBox

app/app/src/main/java/uah/vaccination/adapters/ParentsAdapter.kt

@@ -0,0 +1,54 @@
+package uah.vaccination.adapters
+
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.Filter
+import android.widget.Filterable
+import android.widget.TextView
+import androidx.recyclerview.widget.RecyclerView
+import uah.vaccination.R
+import uah.vaccination.models.Parent
+
+class ParentsAdapter(val parents: ArrayList<Parent>) :
+    RecyclerView.Adapter<ParentsAdapter.ParentHolder>(), Filterable {
+
+    private var filteredParents = parents
+
+    override fun getItemCount() = filteredParents.size
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int) =
+        ParentHolder(LayoutInflater.from(parent.context).inflate(R.layout.item_parent, parent, false))
+
+    override fun onBindViewHolder(holder: ParentHolder, position: Int) {
+        val parent = filteredParents[position]
+        holder.emailTextView.text = parent.email
+    }
+
+    override fun getFilter() = filteringStrategy
+
+    private val filteringStrategy: Filter = object : Filter() {
+
+        override fun performFiltering(p0: CharSequence?): FilterResults {
+            val query = p0.toString()
+            val filteredList = if (query.isNotEmpty()) {
+                parents.filter { it.email!!.contains(query, true) } as ArrayList<Parent>
+            } else {
+                parents
+            }
+            return FilterResults().also { it.values = filteredList }
+        }
+
+        @Suppress("UNCHECKED_CAST")
+        override fun publishResults(p0: CharSequence?, p1: FilterResults?) {
+            filteredParents = p1!!.values as ArrayList<Parent>
+            notifyDataSetChanged()
+        }
+
+    }
+
+    inner class ParentHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
+        internal var emailTextView: TextView = itemView.findViewById(R.id.email_text_view)
+    }
+
+}

app/app/src/main/java/uah/vaccination/fragments/HomeFragment.kt

@@ -1,18 +1,57 @@
 package uah.vaccination.fragments
 
 import android.os.Bundle
+import android.text.Editable
+import android.text.TextWatcher
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import android.widget.EditText
 import androidx.fragment.app.Fragment
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import com.google.firebase.firestore.FirebaseFirestore
 import uah.vaccination.R
+import uah.vaccination.adapters.ParentsAdapter
+import uah.vaccination.models.Parent
 
 class HomeFragment : Fragment() {
 
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-        // Inflate the layout for this fragment
-        return inflater.inflate(R.layout.fragment_home, container, false)
-    }
+    private lateinit var adapter: ParentsAdapter
+    private var parents = arrayListOf<Parent>()
+    private val firestore = FirebaseFirestore.getInstance()
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+
+        firestore.collection("parents")
+            .get()
+            .addOnSuccessListener { result ->
+                for (document in result) {
+                    parents.add(document.toObject(Parent::class.java))
+                }
+            }
+
+        val rootView = inflater.inflate(R.layout.fragment_home, container, false)
+        val parentsRecyclerView = rootView.findViewById(R.id.parents_recycler_view) as RecyclerView // Add this
+        val searchEditText = rootView.findViewById(R.id.search_edit_text) as EditText // Add this
 
+        adapter = ParentsAdapter(parents)
+        parentsRecyclerView.adapter = adapter
+        parentsRecyclerView.layoutManager = LinearLayoutManager(activity)
+
+        searchEditText.addTextChangedListener(object : TextWatcher {
+            override fun afterTextChanged(p0: Editable?) = Unit
+            override fun beforeTextChanged(p0: CharSequence?, p1: Int, p2: Int, p3: Int) = Unit
+            override fun onTextChanged(s: CharSequence, start: Int, before: Int, count: Int) {
+                adapter.filter.filter(s.toString())
+            }
+        })
+
+        return rootView
+    }
 
 }

app/app/src/main/res/layout/fragment_home.xml

@@ -1,12 +1,26 @@
 <?xml version="1.0" encoding="utf-8"?>
 <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
-             xmlns:tools="http://schemas.android.com/tools"
-             android:layout_width="match_parent" android:layout_height="match_parent"
-             tools:context=".fragments.HomeFragment">
+        xmlns:tools="http://schemas.android.com/tools"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        tools:context=".fragments.HomeFragment">
 
-    <!-- TODO: Update blank fragment layout -->
-    <TextView
+    <LinearLayout
             android:layout_width="match_parent"
             android:layout_height="match_parent"
-            android:text="Home"/>
+            android:orientation="vertical">
+
+        <EditText
+                android:id="@+id/search_edit_text"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:hint="@string/search" />
+
+        <androidx.recyclerview.widget.RecyclerView
+                android:id="@+id/parents_recycler_view"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent" />
+
+    </LinearLayout>
+
 </FrameLayout>

app/app/src/main/res/layout/item_parent.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<TextView xmlns:android="http://schemas.android.com/apk/res/android"
+        android:id="@+id/email_text_view"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:textSize="18sp"
+        android:padding="8dp"/>

app/app/src/main/res/values/strings-ar.xml

@@ -12,4 +12,5 @@
     <string name="sign_up">انشاء حساب</string>
     <string name="dateOfBirth">تاريخ الميلاد</string>
     <string name="parentId">رقم ولي الأمر</string>
+    <string name="search">بحث</string>
 </resources>