feat #11: show the list

Author: kmhmubin

RecycleViewListApp/app/src/main/java/com/example/recycleviewlistapp/MainActivity.kt

@@ -2,10 +2,45 @@ package com.example.recycleviewlistapp
 
 import android.os.Bundle
 import androidx.appcompat.app.AppCompatActivity
+import androidx.recyclerview.widget.RecyclerView
+import com.example.recycleviewlistapp.adapter.CardAdapter
 
 class MainActivity : AppCompatActivity() {
+    // creating objects
+    private lateinit var recyclerView: RecyclerView
+    private lateinit var cardAdapter: CardAdapter
+
+    // creating the list
+    private var countryList = mutableListOf<String>()
+    private var displayList = mutableListOf<String>()
+
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
+
+        // creating a list
+        countryList.add("Bangladesh")
+        countryList.add("Brazil")
+        countryList.add("Bhutan")
+        countryList.add("Nepal")
+        countryList.add("India")
+        countryList.add("United State")
+        countryList.add("United Kingdom")
+        countryList.add("United Arab Emirath")
+        countryList.add("Norway")
+        countryList.add("Japan")
+        countryList.add("China")
+
+        // display the list
+
+        displayList.addAll(countryList)
+
+        // show the list into recycler view
+        recyclerView = findViewById(R.id.recyclerView)
+        // show the card adapter
+        cardAdapter = CardAdapter(displayList)
+
+        recyclerView.adapter = cardAdapter
     }
 }

RecycleViewListApp/app/src/main/java/com/example/recycleviewlistapp/adapter/CardAdapter.kt

@@ -0,0 +1,56 @@
+package com.example.recycleviewlistapp.adapter
+
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ImageView
+import android.widget.TextView
+import android.widget.Toast
+import androidx.recyclerview.widget.RecyclerView
+import com.example.recycleviewlistapp.R
+
+/*
+1.our class will accept one parameter : country list => Mutable list
+2.then extend the class into recyclerview adapter which create view holder for CardAdapter class
+3.Create a inner class for accept the view into the Recycler view
+4.import the member methods
+
+ */
+class CardAdapter(countryList: MutableList<String>) : RecyclerView.Adapter<CardAdapter.ViewHolder>() {
+    // create a variable for the list
+    private var countries: MutableList<String> = countryList
+
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
+        val v = LayoutInflater.from(parent.context).inflate(R.layout.card_layout, parent, false)
+        return ViewHolder(v)
+    }
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        // access the item object
+        holder.itemTitle.text = countries[position]
+    }
+
+    override fun getItemCount(): Int {
+        return countries.size
+    }
+
+    // accept item in the view
+    inner class ViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
+        var itemImage: ImageView = itemView.findViewById(R.id.itemImage)
+        var itemTitle: TextView = itemView.findViewById(R.id.itemTitle)
+
+        init {
+            // when clicked show the toast message
+            itemView.setOnClickListener {
+                val position: Int = adapterPosition
+                Toast.makeText(itemView.context, "Clicked ${countries[position]}", Toast.LENGTH_LONG).show()
+
+            }
+        }
+
+        // add click listener for the card view
+
+
+    }
+}

RecycleViewListApp/app/src/main/res/layout/activity_main.xml

@@ -11,6 +11,7 @@
         android:id="@+id/recyclerView"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
+        app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
         tools:layout_editor_absoluteX="201dp"
         tools:layout_editor_absoluteY="290dp" />
 </androidx.constraintlayout.widget.ConstraintLayout>

RecycleViewListApp/app/src/main/res/layout/card_layout.xml

@@ -4,7 +4,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/card_view"
     android:layout_width="match_parent"
-    android:layout_height="match_parent"
+    android:layout_height="wrap_content"
     android:layout_margin="5dp"
     app:cardBackgroundColor="#FF7043"
     app:cardCornerRadius="5dp"