Recipe/turabek

app/build.gradle.kts

@@ -9,7 +9,7 @@ android {
 
     defaultConfig {
         applicationId = "com.example.assignment_3"
-        minSdk = 24
+        minSdk = 22
         targetSdk = 34
         versionCode = 1
         versionName = "1.0"
@@ -27,11 +27,11 @@ android {
         }
     }
     compileOptions {
-        sourceCompatibility = JavaVersion.VERSION_11
-        targetCompatibility = JavaVersion.VERSION_11
+        sourceCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_1_8
     }
     kotlinOptions {
-        jvmTarget = "11"
+        jvmTarget = "1.8"
     }
 }
 
@@ -40,11 +40,11 @@ dependencies {
     implementation(libs.androidx.core.ktx)
     implementation(libs.androidx.appcompat)
     implementation(libs.material)
+    implementation("com.google.android.material:material:1.4.0")
+    implementation("androidx.fragment:fragment-ktx:1.6.1")
     implementation(libs.androidx.activity)
     implementation(libs.androidx.constraintlayout)
     testImplementation(libs.junit)
-    testImplementation(libs.junit.jupiter)
-    testImplementation(libs.junit.jupiter)
     androidTestImplementation(libs.androidx.junit)
     androidTestImplementation(libs.androidx.espresso.core)
 }

app/src/main/AndroidManifest.xml

@@ -14,20 +14,18 @@
         tools:targetApi="31">
 
         <activity
-            android:name=".CreateAccountActivity"
-            android:exported="true">
+            android:name=".MainActivity"
+
+            android:exported="true" >
+
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
-        <activity
-            android:name=".SignUpDetailsActivity"
-            android:exported="true" />
-        <activity
-            android:name=".MainActivity"
-            android:exported="true" />
+        <activity android:name=".RecipeDetailActivity" />
+
     </application>
 
 </manifest>

app/src/main/java/com/example/assignment_3/CreateAccountFragment.kt

@@ -0,0 +1,87 @@
+package com.example.assignment_3
+import android.content.Context
+import android.content.Intent
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.Button
+import android.widget.TextView
+import android.widget.Toast
+import androidx.fragment.app.Fragment
+import com.google.android.material.textfield.TextInputEditText
+import com.google.android.material.textfield.TextInputLayout
+class CreateAccountFragment : Fragment() {
+    private val credentialsManager = CredentialsManager
+    private lateinit var emailField: TextInputEditText
+    private lateinit var emailLayout: TextInputLayout
+    private lateinit var passwordField: TextInputEditText
+    private lateinit var passwordLayout: TextInputLayout
+    private lateinit var nextButton: Button
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        val view = inflater.inflate(R.layout.fragment_create_account, container, false)
+        emailField = view.findViewById(R.id.etEmail)
+        emailLayout = view.findViewById(R.id.textInputEmail)
+        passwordField = view.findViewById(R.id.etPassword)
+        passwordLayout = view.findViewById(R.id.textInputPassword)
+        nextButton = view.findViewById(R.id.btnNext)
+        nextButton.setOnClickListener { onNextButtonClick() }
+        view.findViewById<TextView>(R.id.tvRegisterNoww).setOnClickListener {
+            navigateToSignUpDetailsFragment()
+        }
+        return view
+    }
+    private fun onNextButtonClick() {
+        val email = emailField.text.toString().trim()
+        val password = passwordField.text.toString().trim()
+        clearAllErrors()
+        when {
+            email.isEmpty() -> setError(emailLayout, R.string.error_email_required)
+            !credentialsManager.isEmailValid(email) -> setError(
+                emailLayout,
+                R.string.error_invalid_email
+            )
+            password.isEmpty() -> setError(passwordLayout, R.string.error_password_required)
+            !credentialsManager.isValidPassword(password) -> setError(
+                passwordLayout,
+                R.string.error_password_invalid
+            )
+            else -> {
+                if (CredentialsManager.validateCredentials(email, password)) {
+                    navigateToMainActivity(email, password)
+                } else {
+                    showToast(R.string.error_invalid_credentials)
+                }
+            }
+        }
+    }
+    private fun setError(layout: TextInputLayout, errorResId: Int?) {
+        layout.error = errorResId?.let { getString(it) }
+    }
+    private fun clearAllErrors() {
+        setError(emailLayout, null)
+        setError(passwordLayout, null)
+    }
+    private fun showToast(messageResId: Int) {
+        Toast.makeText(requireContext(), getString(messageResId), Toast.LENGTH_SHORT).show()
+    }
+    private fun navigateToMainActivity(email: String, password: String) {
+        credentialsManager.setLoggedIn(requireContext(), true)
+        credentialsManager.saveUserCredentials(requireContext(), email, password)
+        val intent = Intent(requireContext(), MainActivity::class.java).apply {
+            putExtra("email", email)
+            putExtra("password", password)
+        }
+        startActivity(intent)
+        requireActivity().finish()
+    }
+    private fun navigateToSignUpDetailsFragment() {
+        parentFragmentManager.beginTransaction()
+            .replace(R.id.fragmentContainerView, SignUpDetailsFragment())
+            .addToBackStack(null)
+            .commit()
+    }
+}

app/src/main/java/com/example/assignment_3/CredentialsManager.kt

@@ -1,38 +1,70 @@
-// Put your package name here. Check your activity for reference.
+
 package com.example.assignment_3
 
+import android.content.Context
+
 object CredentialsManager {
 
+    private const val PREFS_NAME = "user_prefs"
+    private const val KEY_IS_LOGGED_IN = "is_logged_in"
+    private const val KEY_EMAIL = "email"
+    private const val KEY_PASSWORD = "password"
+
     private val emailPattern = ("[a-zA-Z0-9\\+\\%\\-\\+]{1,256}" +
             "\\@" +
-            "[a-zA-Z0-9][0-zA-Z0-9\\-]{0,64}" +
+            "[a-zA-Z0-9][a-zA-Z0-9\\-]{0,64}" +
             "(" +
             "\\." +
-            "[a-zA-Z0-9][0-zA-Z0-9\\-]{0,25}" +
+            "[a-zA-Z0-9][a-zA-Z0-9\\-]{0,25}" +
             ")+").toRegex()
 
     private val registeredUsers = mutableMapOf<String, String>()
 
-    fun isEmailValid(email: String): Boolean {
-        return email.matches(emailPattern)
-    }
+    fun isEmailValid(email: String): Boolean = email.matches(emailPattern)
 
-    fun isEmailAlreadyUsed(email: String): Boolean {
-        return registeredUsers.containsKey(email.lowercase())
-    }
+    fun isEmailAlreadyUsed(email: String): Boolean = registeredUsers.containsKey(email.lowercase())
+
+    fun isValidPassword(password: String): Boolean = password.length >= 8
+
+    fun isValidFullName(fullName: String): Boolean = fullName.isNotEmpty()
 
-    fun isValidPassword(password: String): Boolean {
-        return password.length >= 8
-    }
 
     fun registerUser(email: String, password: String): Boolean {
-        if (isEmailAlreadyUsed(email)) {
-            return false
-        }
+        if (isEmailAlreadyUsed(email)) return false
+
         registeredUsers[email.lowercase()] = password
         return true
     }
 
+
+    private fun getSharedPreferences(context: Context) =
+        context.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE)
+    fun isLoggedIn(context: Context): Boolean {
+        return getSharedPreferences(context).getBoolean(KEY_IS_LOGGED_IN, false)
+    }
+
+
+    fun setLoggedIn(context: Context, isLoggedIn: Boolean) {
+        getSharedPreferences(context).edit()
+            .putBoolean(KEY_IS_LOGGED_IN, isLoggedIn)
+            .apply()
+    }
+
+
+    fun saveUserCredentials(context: Context, email: String, password: String) {
+        getSharedPreferences(context).edit()
+            .putString(KEY_EMAIL, email)
+            .putString(KEY_PASSWORD, password)
+            .apply()
+    }
+
+    fun getUserCredentials(context: Context): Pair<String?, String?> {
+        val sharedPreferences = getSharedPreferences(context)
+        val email = sharedPreferences.getString(KEY_EMAIL, null)
+        val password = sharedPreferences.getString(KEY_PASSWORD, null)
+        return Pair(email, password)
+    }
+
     fun validateLogin(email: String, password: String): Boolean {
         return registeredUsers[email.lowercase()] == password
     }
@@ -41,9 +73,6 @@ object CredentialsManager {
         return isEmailValid(email) && isValidPassword(password)
     }
 
-    fun isValidFullName(fullName: String): Boolean {
-        return fullName.isNotEmpty()
-    }
 
     fun isHardcodedCredentials(email: String, password: String): Boolean {
         val hardcodedEmail = "test@te.st"
@@ -71,6 +100,6 @@ object CredentialsManager {
                 isEmailValid(email) &&
                 isValidPhoneNumber(phoneNumber) &&
                 isValidPassword(password) &&
-                isTermsAccepted(isTermsAccepted)
+                isTermsAccepted
     }
-}
+}

app/src/main/java/com/example/assignment_3/LoginFragment.kt

@@ -0,0 +1,34 @@
+package com.example.assignment_3
+import android.content.Context
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.Button
+import androidx.fragment.app.Fragment
+class LoginFragment(private val credentialsManager: CredentialsManager) : Fragment() {
+    private var listener: EventsListener? = null
+    interface EventsListener {
+        fun onRegisterPressed()
+    }
+    override fun onAttach(context: Context) {
+        super.onAttach(context)
+        require(context is EventsListener) {
+            "Activity holding fragment must implement its EventsInterface"
+        }
+        listener = context
+    }
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        return inflater.inflate(R.layout.fragment_create_account, container, false)
+    }
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        view.findViewById<Button>(R.id.btnNext).setOnClickListener {
+            listener?.onRegisterPressed()
+        }
+    }
+}