Logout Feature

app/src/main/java/com/example/hposregistration/data/user/UserData.kt

@@ -27,7 +27,7 @@ data class UserData(
     var isUnderTransfusion: Boolean? = false,
     var sickleCellHistory: String? = "",
     var userImageURL: String = "",
-    var createdBy: String? = "",
+    var registeredBy: String? = "",
     var createdAt: String? = "",
     var registrationCenterName: String? = "",
 ){

app/src/main/java/com/example/hposregistration/ui/fragments/UserListFragment.kt

@@ -3,6 +3,7 @@ package com.example.hposregistration.ui.fragments
 import android.app.AlertDialog
 import android.content.Context
 import android.content.DialogInterface
+import android.content.SharedPreferences
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
@@ -12,6 +13,7 @@ import androidx.fragment.app.viewModels
 import androidx.navigation.fragment.findNavController
 import com.example.hposregistration.adapters.UserListOfflineAdapter
 import com.example.hposregistration.adapters.UserListOnlineAdapter
+import com.example.hposregistration.data.Constant
 import com.example.hposregistration.data.user.UserData
 import com.example.hposregistration.ui.viewmodels.RegistrationViewModel
 import com.firebase.ui.firestore.FirestoreRecyclerOptions
@@ -31,10 +33,13 @@ class UserListFragment : BaseFragment() {
 
     private var isOnline = false
 
+    private lateinit var sharedPreference: SharedPreferences
+
     override fun onCreateView(
         inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?
     ): View {
         _binding = FragmentUserListBinding.inflate(inflater, container, false)
+        sharedPreference = requireContext().getSharedPreferences("PREFERENCE_NAME", Context.MODE_PRIVATE)
         setupViews()
         return binding.root
     }
@@ -53,6 +58,9 @@ class UserListFragment : BaseFragment() {
         binding.btnRegisterUser.setOnClickListener {
             findNavController().navigate(R.id.action_userListFragment_to_registrationFragment)
         }
+        binding.btnLogout.setOnClickListener {
+            logoutUser(requireContext())
+        }
     }
 
     private fun init() {
@@ -72,6 +80,33 @@ class UserListFragment : BaseFragment() {
         }
     }
 
+    private fun logoutUser(context: Context) {
+        val builder = AlertDialog.Builder(context)
+        builder.setTitle("Log Out")
+        builder.setMessage("Do you want to LogOut the Application?")
+
+        // Positive button
+        builder.setPositiveButton("Yes") { dialog, _ ->
+            saveUserId("")
+            findNavController().navigate(R.id.action_userListFragment_to_loginFragment)
+            dialog.dismiss()
+        }
+
+        // Negative button
+        builder.setNegativeButton("No") { dialog, _ ->
+            dialog.dismiss()
+        }
+
+        val dialog = builder.create()
+        dialog.show()
+    }
+
+    private fun saveUserId(userId: String) {
+        with(sharedPreference.edit()) {
+            putString(Constant.USER_ID, userId)
+            apply()
+        }
+    }
     private fun showUploadDialog(context: Context) {
         val builder = AlertDialog.Builder(context)
         builder.setTitle("Upload DB Registration")

app/src/main/java/com/example/hposregistration/ui/fragments/registration/ReviewDetailsRegistrationFragment.kt

@@ -98,7 +98,7 @@ class ReviewDetailsRegistrationFragment : BaseFragment() {
         userData.createdAt = SimpleDateFormat(
             "yyyy-MM-dd HH:mm:ss", Locale.getDefault()
         ).format(Calendar.getInstance().time)
-        userData.createdBy = sharedPreference.getString(Constant.USER_ID, "")
+        userData.registeredBy = sharedPreference.getString(Constant.USER_ID, "")
         viewModel.addUserToDatabase(userData)
         viewModel.deleteById(args.userId)
     }