added util module with two base classes for fragments and view models

Author: lzaytseva

app/build.gradle.kts

@@ -46,5 +46,14 @@ dependencies {
     androidTestImplementation(libs.androidx.junit)
     androidTestImplementation(libs.androidx.espresso.core)
 
+    implementation(libs.nav.ui)
+    implementation(libs.nav.fragment)
+
     implementation(project(":uikit"))
+    implementation(project(":util"))
+    implementation(project(":search"))
+    implementation(project(":profile"))
+    implementation(project(":recommendations"))
+    implementation(project(":subscription"))
+    implementation(project(":hotels"))
 }

settings.gradle.kts

@@ -22,3 +22,9 @@ dependencyResolutionManagement {
 rootProject.name = "Flight Finder"
 include(":app")
 include(":uikit")
+include(":search")
+include(":profile")
+include(":subscription")
+include(":hotels")
+include(":recommendations")
+include(":util")

util/.gitignore

@@ -0,0 +1 @@
+/build

util/build.gradle.kts

@@ -0,0 +1,47 @@
+plugins {
+    alias(libs.plugins.androidLibrary)
+    alias(libs.plugins.jetbrainsKotlinAndroid)
+}
+
+android {
+    namespace = "com.github.lzaytseva.util"
+    compileSdk = 34
+
+    defaultConfig {
+        minSdk = 24
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+        consumerProguardFiles("consumer-rules.pro")
+    }
+
+    buildTypes {
+        release {
+            isMinifyEnabled = false
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro"
+            )
+        }
+    }
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = "1.8"
+    }
+
+    buildFeatures {
+        viewBinding = true
+    }
+}
+
+dependencies {
+
+    implementation(libs.androidx.core.ktx)
+    implementation(libs.androidx.appcompat)
+    implementation(libs.material)
+    testImplementation(libs.junit)
+    androidTestImplementation(libs.androidx.junit)
+    androidTestImplementation(libs.androidx.espresso.core)
+}

util/consumer-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

util/proguard-rules.pro

@@ -0,0 +1,24 @@
+package com.github.lzaytseva.util
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertEquals("com.github.lzaytseva.util.test", appContext.packageName)
+    }
+}

util/src/androidTest/java/com/github/lzaytseva/util/ExampleInstrumentedTest.kt

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest>
+
+</manifest>

util/src/main/AndroidManifest.xml

@@ -0,0 +1,48 @@
+package com.github.lzaytseva.util
+
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.viewbinding.ViewBinding
+
+typealias Inflate<T> = (LayoutInflater, ViewGroup?, Boolean) -> T
+
+/**
+ * Базовый фрагмент, позволяет привести к единому виду все реализации фрагментов, работает в связке с BaseViewModel.
+ *
+ * При реализации потребуется реализовать абстрактные методы для инициализации вью: configureViews()  и слушатели событий: subscribe()
+ * и абстрактное свойство viewModel
+ */
+abstract class BaseFragment<VB: ViewBinding, VM: BaseViewModel> (
+    private val inflate: Inflate<VB>
+): Fragment() {
+
+        private var _binding: VB? = null
+        protected val binding: VB get() = _binding!!
+
+        abstract val viewModel: VM
+
+        override fun onCreateView(
+            inflater: LayoutInflater,
+            container: ViewGroup?,
+            savedInstanceState: android.os.Bundle?
+        ): android.view.View? {
+            _binding = inflate.invoke(inflater, container, false)
+            return binding.root
+        }
+
+        override fun onViewCreated(view: android.view.View, savedInstanceState: android.os.Bundle?) {
+            super.onViewCreated(view, savedInstanceState)
+            onConfigureViews()
+            onSubscribe()
+        }
+
+        abstract fun onConfigureViews()
+
+        abstract fun onSubscribe()
+
+        override fun onDestroyView() {
+            super.onDestroyView()
+            _binding = null
+        }
+}

util/src/main/java/com/github/lzaytseva/util/BaseFragment.kt

@@ -0,0 +1,9 @@
+package com.github.lzaytseva.util
+
+import androidx.lifecycle.ViewModel
+
+/**
+ * Базовая вью модель, необходима для реализации базового фрагмента
+ *
+ */
+abstract class BaseViewModel : ViewModel()

util/src/main/java/com/github/lzaytseva/util/BaseViewModel.kt

@@ -0,0 +1,17 @@
+package com.github.lzaytseva.util
+
+import org.junit.Test
+
+import org.junit.Assert.*
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+class ExampleUnitTest {
+    @Test
+    fun addition_isCorrect() {
+        assertEquals(4, 2 + 2)
+    }
+}