migrate automotive username and password sign-in fragment to view binding

automotive/src/main/java/com/example/android/uamp/automotive/UsernameAndPasswordSignInFragment.kt

@@ -22,73 +22,46 @@ import android.text.method.LinkMovementMethod
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import android.widget.Button
-import android.widget.ImageView
-import android.widget.TextView
-import androidx.appcompat.widget.Toolbar
 import androidx.core.content.ContextCompat
 import androidx.core.text.HtmlCompat
 import androidx.fragment.app.Fragment
 import androidx.lifecycle.ViewModelProvider
-import com.google.android.material.textfield.TextInputEditText
-import com.google.android.material.textfield.TextInputLayout
+import com.example.android.uamp.automotive.databinding.PhoneSignInBinding
+import com.example.android.uamp.automotive.databinding.UsernameAndPasswordSignInBinding
 
 /**
  * Fragment that is used to facilitates username and password sign-in.
  */
-class UsernameAndPasswordSignInFragment : Fragment() {
-
-    private lateinit var toolbar: Toolbar
-    private lateinit var appIcon: ImageView
-    private lateinit var primaryTextView: TextView
-    private lateinit var passwordContainer: TextInputLayout
-    private lateinit var passwordInput: TextInputEditText
-    private lateinit var submitButton: Button
-    private lateinit var footerTextView: TextView
-
-    override fun onCreateView(
-        inflater: LayoutInflater, container: ViewGroup?,
-        savedInstanceState: Bundle?
-    ): View? {
-        return inflater.inflate(R.layout.username_and_password_sign_in, container, false)
-    }
-
+class UsernameAndPasswordSignInFragment : Fragment(R.layout.username_and_password_sign_in) {
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
         val context = requireContext()
+        val binding = UsernameAndPasswordSignInBinding.bind(view)
 
-        toolbar = view.findViewById(R.id.toolbar)
-        appIcon = view.findViewById(R.id.app_icon)
-        primaryTextView = view.findViewById(R.id.primary_message)
-        passwordContainer = view.findViewById(R.id.password_container)
-        passwordInput = view.findViewById(R.id.password_input)
-        submitButton = view.findViewById(R.id.submit_button)
-        footerTextView = view.findViewById(R.id.footer)
-
-        toolbar.setNavigationOnClickListener {
+        binding.toolbar.setNavigationOnClickListener {
             requireActivity().supportFragmentManager.popBackStack()
         }
 
-        appIcon.setImageDrawable(ContextCompat.getDrawable(context, R.drawable.aural_logo))
-        primaryTextView.text = getString(R.string.username_and_password_sign_in_primary_text)
-        passwordContainer.hint = getString(R.string.password_hint)
+        binding.appIcon.setImageDrawable(ContextCompat.getDrawable(context, R.drawable.aural_logo))
+        binding.primaryMessage.text = getString(R.string.username_and_password_sign_in_primary_text)
+        binding.passwordContainer.hint = getString(R.string.password_hint)
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-            passwordInput.setAutofillHints(View.AUTOFILL_HINT_PASSWORD)
+            binding.passwordInput.setAutofillHints(View.AUTOFILL_HINT_PASSWORD)
         }
 
         // Links in footer text should be clickable.
-        footerTextView.text = HtmlCompat.fromHtml(
+        binding.footer.text = HtmlCompat.fromHtml(
             context.getString(R.string.sign_in_footer),
             HtmlCompat.FROM_HTML_MODE_LEGACY
         )
-        footerTextView.movementMethod = LinkMovementMethod.getInstance()
+        binding.footer.movementMethod = LinkMovementMethod.getInstance()
 
         // Get user identifier from previous screen.
         val userId = arguments?.getString(SignInLandingPageFragment.CAR_SIGN_IN_IDENTIFIER_KEY)
 
-        submitButton.text = getString(R.string.sign_in_submit_button_label)
-        submitButton.setOnClickListener {
-            onSignIn(userId!!, passwordInput.text.toString())
+        binding.submitButton.text = getString(R.string.sign_in_submit_button_label)
+        binding.submitButton.setOnClickListener {
+            onSignIn(userId!!, binding.passwordInput.text.toString())
         }
     }
 
@@ -97,4 +70,4 @@ class UsernameAndPasswordSignInFragment : Fragment() {
             .get(SignInActivityViewModel::class.java)
             .login(userIdentifier.toString(), password.toString())
     }
-}
+}