Fragments implemented

Author: priyanka0906

android/src/main/AndroidManifest.xml

@@ -9,13 +9,12 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/Theme.AppCompat.NoActionBar">
-        <activity android:name=".CoilSample"></activity>
-        <activity android:name=".ContourSample" />
         <activity android:name=".MainActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
                 <category android:name="android.intent.category.LAUNCHER" />
+
             </intent-filter>
         </activity>
     </application>

android/src/main/java/playground/android/CoilFragment.kt

@@ -0,0 +1,21 @@
+package playground.android
+
+import android.os.Bundle
+import androidx.fragment.app.Fragment
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+
+
+class CoilFragment : Fragment() {
+
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        // Inflate the layout for this fragment
+        return inflater.inflate(R.layout.fragment_coil, container, false)
+    }
+
+}

android/src/main/java/playground/android/CoilSample.kt

@@ -0,0 +1,19 @@
+package playground.android
+
+import android.os.Bundle
+import androidx.fragment.app.Fragment
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+
+
+class ContourFragment : Fragment() {
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+
+        return MainView(requireContext())
+    }
+}

android/src/main/java/playground/android/ContourFragment.kt

@@ -1,55 +1,47 @@
 package playground.android
 
 import android.content.Context
-import android.content.Intent
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.TextView
-import androidx.core.content.ContextCompat.startActivity
+import androidx.appcompat.app.AppCompatActivity
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.FragmentTransaction
 import androidx.recyclerview.widget.RecyclerView
 
-class LibraryAdapter(private val context:Context, private val libraries:List<LibraryName>):RecyclerView.Adapter<LibraryAdapter.MyViewHolder>() {
+
+
+class LibraryAdapter(private val context: Context?, private val libraries: List<LibraryName>):RecyclerView.Adapter<LibraryAdapter.MyViewHolder>() {
    inner class MyViewHolder(itemView: View):RecyclerView.ViewHolder(itemView) {
         val name:TextView = itemView.findViewById(R.id.name_txt)
-
         fun setData(library: LibraryName, position: Int) {
             name.text = library.name
-
         }
-    }
+   }
 
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MyViewHolder {
-       val view = LayoutInflater.from(context).inflate(R.layout.recyclerview_item,parent,false)
+        val view: View = LayoutInflater.from(parent.context).inflate(R.layout.recyclerview_item, parent, false)
        return MyViewHolder(view)
     }
 
     override fun onBindViewHolder(holder: MyViewHolder, position: Int) {
        val library = libraries[position]
-       holder.setData(library,position)
-        holder.itemView.setOnClickListener { listener(library) }
-    }
+       holder.setData(library, position)
+        holder.itemView.setOnClickListener {
 
-    private fun listener(item: LibraryName) {
+            val activity = context as AppCompatActivity
+            activity.supportFragmentManager.beginTransaction().replace(R.id.main_fragment, library.fragment).addToBackStack(null).commit()
+        }
+    }
 
-        var intent = Intent()
 
-        when(item.name)
-        {
-            "Contour" -> {
-                intent = Intent(context,ContourSample::class.java)
-            }
 
-            "Coil" ->{
-                intent = Intent(context,CoilSample::class.java)
-            }
-        }
 
-          context.startActivity(intent)
 
-    }
 
     override fun getItemCount(): Int {
         return libraries.size
     }
 }
+

android/src/main/java/playground/android/ContourSample.kt

@@ -2,18 +2,20 @@ package playground.android
 
 import android.os.Bundle
 import androidx.appcompat.app.AppCompatActivity
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.FragmentTransaction
 import androidx.recyclerview.widget.RecyclerView
 
-
-
-
 class MainActivity : AppCompatActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
-        val recyclerView : RecyclerView = findViewById(R.id.recyclerView)
-        val adapter = LibraryAdapter(this,Suppliers.libraries)
-        recyclerView.adapter = adapter
-
+        val ft: FragmentTransaction =supportFragmentManager.beginTransaction()
+        val recyclerViewFragment = RecyclerViewFragment(this)
+        ft.replace(R.id.main_fragment,recyclerViewFragment)
+        ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE)
+        ft.addToBackStack(null)
+        ft.commit()
     }
+
 }

android/src/main/java/playground/android/LibraryAdapter.kt

@@ -0,0 +1,28 @@
+package playground.android
+
+import android.content.Context
+import android.os.Bundle
+import androidx.fragment.app.Fragment
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.FragmentTransaction
+import androidx.recyclerview.widget.RecyclerView
+
+
+class RecyclerViewFragment(context:Context) : Fragment() {
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        return inflater.inflate(R.layout.fragment_recycler_view, container, false)
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        val recyclerView : RecyclerView = view.findViewById(R.id.recyclerView)
+        val adapter = LibraryAdapter(context,Suppliers.libraries)
+        recyclerView.adapter = adapter
+
+    }
+}

android/src/main/java/playground/android/MainActivity.kt

@@ -1,11 +1,15 @@
 package playground.android
 
-data class LibraryName(var name:String)
+import android.content.Context
+import android.content.Intent
+import androidx.fragment.app.Fragment
+
+data class LibraryName(var name:String, var fragment:Fragment)
 
 
 object Suppliers{
-    val libraries = listOf(LibraryName("Contour"),
-                            LibraryName("Coil"),
+    val libraries = listOf(LibraryName("Contour",ContourFragment()),
+                            LibraryName("Coil" , CoilFragment())
 
 
     )