Fix/safe binding admin fragment

app/src/main/java/com/theayushyadav11/MessEase/ui/NavigationDrawers/Fragments/AdminFragment.kt

@@ -13,60 +13,95 @@ import com.theayushyadav11.MessEase.utils.Constants.Companion.DESIGNATION
 import com.theayushyadav11.MessEase.utils.Mess
 
 class AdminFragment : Fragment() {
-    private lateinit var binding: FragmentAdminBinding
-    private lateinit var mess: Mess
 
+    private var _binding: FragmentAdminBinding? = null
+    private val binding get() = _binding!!
+
+    private lateinit var mess: Mess
     private val viewModel: AdminViewModel by viewModels()
 
     override fun onCreateView(
         inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?
     ): View {
-        binding = FragmentAdminBinding.inflate(layoutInflater, container, false)
+        _binding = FragmentAdminBinding.inflate(inflater, container, false)
         return binding.root
     }
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        super.onViewCreated(view, savedInstanceState)
         initialise()
         listeners()
     }
 
+    private fun initialise() {
+        mess = Mess(requireContext())
+        setAdapter()
+    }
+
     private fun listeners() {
         binding.btnAdd.setOnClickListener {
-            add()
+            validateAndAdd()
         }
     }
 
-    private fun initialise() {
-        mess = Mess(requireContext())
-        setAdapter()
-    }
+    private fun validateAndAdd() {
+        val email = binding.etEmail.text.toString().trim()
+        val designation = binding.spinnerAutoComplete.text.toString().trim()
 
+        when {
+            email.isEmpty() -> {
+                binding.tilEmail.error = "Email required"
+            }
 
-    fun add() {
-        if (binding.etEmail.text.toString().isNotEmpty()) {
-            mess.addPb("Adding to Mess Committee")
-            viewModel.addToMessCommittee(
-                binding.etEmail.text.toString(),
-                binding.spinnerAutoComplete.text.toString()
-            )
-            {
-                mess.pbDismiss()
-                mess.toast(it)
+            !android.util.Patterns.EMAIL_ADDRESS.matcher(email).matches() -> {
+                binding.tilEmail.error = "Invalid email"
             }
-        } else {
-            mess.toast("Please enter email")
+
+            designation.isEmpty() -> {
+                binding.tilspin.error = "Select designation"
+            }
+
+            else -> {
+                binding.tilEmail.error = null
+                binding.tilspin.error = null
+                add(email, designation)
+            }
+        }
+    }
+
+    private fun add(email: String, designation: String) {
+        _binding?.let { binding ->
+            binding.btnAdd.isEnabled = false
+            binding.btnAdd.text = "Adding..."
+        }
+
+        mess.addPb("Adding to Mess Committee")
+
+        viewModel.addToMessCommittee(email, designation) { result ->
+            val binding = _binding ?: return@addToMessCommittee
+            mess.pbDismiss()
+
+            binding.btnAdd.isEnabled = true
+            binding.btnAdd.text = "Add to Committee"
+
+            mess.toast(result)
+            binding.etEmail.text?.clear()
+            binding.spinnerAutoComplete.text?.clear()
         }
     }
 
     private fun setAdapter() {
         mess.getLists("${DESIGNATION}s") {
-            val spinner = binding.spinnerAutoComplete
-            val spinnerItems = it
-            val adapter =
-                ArrayAdapter(requireContext(), android.R.layout.simple_spinner_item, spinnerItems)
-            adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item)
-            spinner.setAdapter(adapter)
+            val adapter = ArrayAdapter(
+                requireContext(),
+                android.R.layout.simple_dropdown_item_1line,
+                it
+            )
+            binding.spinnerAutoComplete.setAdapter(adapter)
         }
     }
+
+    override fun onDestroyView() {
+        super.onDestroyView()
+        _binding = null
+    }
 }

app/src/main/res/drawable/baseline_attach_email_24.xml

@@ -1,7 +1,8 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
     android:width="24dp"
     android:height="24dp"
-    android:tint="#A19C9C"
+    android:tint="@color/food"
     android:viewportWidth="24"
     android:viewportHeight="24">
 
@@ -11,6 +12,7 @@
 
     <path
         android:fillColor="@android:color/white"
+        app:tint="@color/food"
         android:pathData="M21,14v4c0,1.1 -0.9,2 -2,2s-2,-0.9 -2,-2v-4.5c0,-0.28 0.22,-0.5 0.5,-0.5s0.5,0.22 0.5,0.5V18h2v-4.5c0,-1.38 -1.12,-2.5 -2.5,-2.5S15,12.12 15,13.5V18c0,2.21 1.79,4 4,4s4,-1.79 4,-4v-4H21z" />
 
 </vector>

app/src/main/res/drawable/baseline_person_24.xml

@@ -1,7 +1,7 @@
     <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="24dp"
     android:height="24dp"
-    android:tint="#A19C9C"
+    android:tint="@color/food"
     android:viewportWidth="24"
     android:viewportHeight="24">
 

app/src/main/res/drawable/bg_card_glass_inner.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <gradient
+        android:startColor="#FFFFFF"
+        android:endColor="#F5F5F5"
+        android:angle="270"/>
+    <corners android:radius="22dp"/>
+</shape>

app/src/main/res/drawable/bg_gradient_full.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape>
+    <gradient xmlns:android="http://schemas.android.com/apk/res/android"
+        android:startColor="#FF6F00"
+        android:endColor="#FFB74D"
+        android:angle="270"/>
+</shape>

app/src/main/res/drawable/bg_icon_soft.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- res/drawable/bg_icon_soft.xml -->
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#22FFFFFF"/>
+    <corners android:radius="50dp"/>
+</shape>