add fragment instead of activity

app/build.gradle

@@ -86,6 +86,10 @@ dependencies {
 
 //    Circle Image View
     implementation 'de.hdodenhof:circleimageview:3.1.0'
+
+    // Navigation Components
+    implementation "androidx.navigation:navigation-fragment-ktx:2.5.3"
+    implementation "androidx.navigation:navigation-ui-ktx:2.5.3"
 }
 
 kapt {

app/src/main/AndroidManifest.xml

@@ -15,13 +15,7 @@
         android:theme="@style/Theme.GitTrackr"
         tools:targetApi="31">
         <activity
-            android:name=".screens.UserDetailsActivity"
-            android:exported="false" />
-        <activity
-            android:name=".screens.UserListActivity"
-            android:exported="false" />
-        <activity
-            android:name=".screens.SplashScreen"
+            android:name=".activity.MainActivity"
             android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
@@ -30,8 +24,19 @@
             </intent-filter>
         </activity>
         <activity
-            android:name=".screens.MainActivity"
-            android:exported="true" />
+            android:name=".fragments.HomeFragment"
+            android:exported="false" />
+        <activity
+            android:name=".fragments.SplashFragment"
+            android:exported="false" />
+
+        <activity
+            android:name=".fragments.UserListFragment"
+            android:exported="false" />
+
+        <activity
+            android:name=".fragments.UserDetailsFragment"
+            android:exported="false" />
     </application>
 
 </manifest>

app/src/main/java/com/sahsisunny/gittrackr/activity/MainActivity.kt

@@ -0,0 +1,15 @@
+package com.sahsisunny.gittrackr.activity
+
+import android.os.Bundle
+import androidx.appcompat.app.AppCompatActivity
+import com.sahsisunny.gittrackr.R
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+
+class MainActivity : AppCompatActivity(), CoroutineScope by CoroutineScope(Dispatchers.Main) {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_main)
+    }
+
+}

app/src/main/java/com/sahsisunny/gittrackr/adapter/UserAdapter.kt

@@ -5,12 +5,13 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.TextView
+import androidx.core.os.bundleOf
+import androidx.navigation.findNavController
 import androidx.recyclerview.widget.RecyclerView
 import com.bumptech.glide.Glide
 import com.google.android.material.button.MaterialButton
 import com.sahsisunny.gittrackr.R
 import com.sahsisunny.gittrackr.model.UsersItem
-import com.sahsisunny.gittrackr.screens.UserDetailsActivity
 import de.hdodenhof.circleimageview.CircleImageView
 
 class UserAdapter(private var con: Context, private var list: List<UsersItem>) :
@@ -34,9 +35,11 @@ class UserAdapter(private var con: Context, private var list: List<UsersItem>) :
         Glide.with(con).load(user.avatar_url).into(holder.userImage)
 
         holder.viewButton.setOnClickListener {
-            val intent = android.content.Intent(con, UserDetailsActivity::class.java)
-            intent.putExtra("login", user.login)
-            con.startActivity(intent)
+//            open user details fragment
+            val bundle =
+                bundleOf("userName" to user.login) // for recieving data in UserDetailsFragment use arguments?.getString("userName")
+            it.findNavController()
+                .navigate(R.id.action_userListFragment_to_userDetailsFragment, bundle)
         }
     }
 

app/src/main/java/com/sahsisunny/gittrackr/fragments/HomeFragment.kt

@@ -0,0 +1,55 @@
+package com.sahsisunny.gittrackr.fragments
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.Button
+import android.widget.EditText
+import androidx.fragment.app.Fragment
+import androidx.navigation.fragment.findNavController
+import com.sahsisunny.gittrackr.R
+
+class HomeFragment : Fragment() {
+    private lateinit var orgNameInput: EditText
+    private lateinit var exitButton: Button
+    private lateinit var loginButton: Button
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+    }
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?,
+    ): View? {
+        val view = inflater.inflate(R.layout.fragment_home, container, false)
+        orgNameInput = view.findViewById(R.id.org_name_input)
+        exitButton = view.findViewById(R.id.exit_button)
+        loginButton = view.findViewById(R.id.login_button)
+
+        loginButton.setOnClickListener {
+            handleLoginButtonClick()
+        }
+        exitButton.setOnClickListener {
+            requireActivity().finish()
+        }
+        return view
+    }
+
+    // For handling the login button click
+    private fun handleLoginButtonClick() {
+        val orgName = orgNameInput.text.toString()
+        val orgNameWithoutSpaces = orgName.replace("\\s".toRegex(), "")
+        if (orgNameWithoutSpaces.isNotEmpty()) {
+            findNavController().navigate(R.id.action_homeFragment_to_userListFragment,
+                Bundle().apply {
+                    putString("orgName", orgNameWithoutSpaces)
+                })
+        } else {
+            orgNameInput.error = "Please enter an organization name"
+        }
+    }
+
+
+}

app/src/main/java/com/sahsisunny/gittrackr/fragments/SplashFragment.kt

@@ -0,0 +1,27 @@
+package com.sahsisunny.gittrackr.fragments
+
+import android.os.Bundle
+import android.os.Handler
+import android.os.Looper
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.navigation.fragment.findNavController
+import com.sahsisunny.gittrackr.R
+
+class SplashFragment : Fragment() {
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?,
+    ): View? {
+        val view = inflater.inflate(R.layout.fragment_splash, container, false)
+
+        Handler(Looper.getMainLooper()).postDelayed({
+            findNavController().navigate(R.id.action_splashFragment_to_homeFragment)
+        }, 2000)
+        return view
+    }
+
+}

app/src/main/java/com/sahsisunny/gittrackr/screens/UserDetailsActivity.kt → app/src/main/java/com/sahsisunny/gittrackr/fragments/UserDetailsFragment.kt

@@ -1,8 +1,12 @@
-package com.sahsisunny.gittrackr.screens
+package com.sahsisunny.gittrackr.fragments
 
 import android.os.Bundle
 import android.util.Log
-import androidx.appcompat.app.AppCompatActivity
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import com.sahsisunny.gittrackr.R
 import com.sahsisunny.gittrackr.adapter.UserDetailsAdapter
@@ -11,27 +15,36 @@ import com.sahsisunny.gittrackr.utils.UserDetailsAPIUtils
 import retrofit2.Callback
 import retrofit2.Response
 
-class UserDetailsActivity : AppCompatActivity() {
 
+class UserDetailsFragment : Fragment() {
+
+    // Declare the RecyclerView and the adapter
     private lateinit var rvUserDetails: RecyclerView
     private lateinit var userAdapter: UserDetailsAdapter
 
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_user_details)
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?,
+    ): View? {
+
+        val view = inflater.inflate(R.layout.fragment_user_details, container, false)
+
+        // Find the RecyclerView and set its layout manager
+        rvUserDetails = view.findViewById<RecyclerView>(R.id.user_details_rv)
+        rvUserDetails.layoutManager = LinearLayoutManager(requireContext())
 
-        rvUserDetails = findViewById(R.id.user_details_rv)
-        rvUserDetails.layoutManager = androidx.recyclerview.widget.LinearLayoutManager(this)
-        val username = intent.getStringExtra("login")
+        // Get the username from the arguments
+        val username = arguments?.getString("userName")
 
+        // If the username is not null, fetch the user details
         if (username != null) {
             UserDetailsAPIUtils.getUserDetailsData(username, object : Callback<UserDetails> {
                 override fun onResponse(
                     call: retrofit2.Call<UserDetails>,
                     response: Response<UserDetails>,
                 ) {
                     val responseBody = response.body()!!
-                    userAdapter = UserDetailsAdapter(this@UserDetailsActivity, responseBody)
+                    userAdapter = UserDetailsAdapter(requireContext(), responseBody)
                     rvUserDetails.adapter = userAdapter
                 }
 
@@ -40,5 +53,9 @@ class UserDetailsActivity : AppCompatActivity() {
                 }
             })
         }
+
+        return view
     }
-}
+
+
+}

app/src/main/java/com/sahsisunny/gittrackr/screens/UserListActivity.kt → app/src/main/java/com/sahsisunny/gittrackr/fragments/UserListFragment.kt

@@ -1,8 +1,11 @@
-package com.sahsisunny.gittrackr.screens
+package com.sahsisunny.gittrackr.fragments
 
 import android.os.Bundle
 import android.util.Log
-import androidx.appcompat.app.AppCompatActivity
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import com.sahsisunny.gittrackr.R
@@ -16,31 +19,40 @@ import retrofit2.Response
 import retrofit2.Retrofit
 import retrofit2.converter.gson.GsonConverterFactory
 
-class UserListActivity : AppCompatActivity() {
+class UserListFragment : Fragment() {
     companion object {
         const val BASE_API = Constants.BASE_API
     }
 
     private lateinit var rvUser: RecyclerView
     lateinit var userAdapter: UserAdapter
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_user_list)
 
-        rvUser = findViewById(R.id.user_rv)
-        val orgName = intent.getStringExtra("orgName")
-        rvUser.layoutManager = LinearLayoutManager(this)
+
+    }
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?,
+    ): View? {
+        val view = inflater.inflate(R.layout.fragment_user_list, container, false)
+
+        rvUser = view.findViewById(R.id.user_rv)
+        val orgName = arguments?.getString("orgName")
+        rvUser.layoutManager = LinearLayoutManager(requireContext())
         if (orgName != null) {
             getUserData(orgName)
         }
+        return view
     }
 
     private fun getUserData(orgName: String?) {
         val retrofit = Retrofit.Builder()
             .baseUrl(BASE_API)
             .addConverterFactory(GsonConverterFactory.create())
             .build()
-
             .create(UserAPIInterface::class.java)
 
         val call = retrofit.getUsersData(orgName)
@@ -51,7 +63,7 @@ class UserListActivity : AppCompatActivity() {
                 response: Response<List<UsersItem>>,
             ) {
                 val responseBody = response.body()!!
-                userAdapter = UserAdapter(this@UserListActivity, responseBody)
+                userAdapter = UserAdapter(requireContext(), responseBody)
                 rvUser.adapter = userAdapter
             }
 
@@ -60,6 +72,4 @@ class UserListActivity : AppCompatActivity() {
             }
         })
     }
-}
-
-
+}