chore: set up android project

.editorconfig

@@ -0,0 +1,6 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true

.github/CODEOWNERS

@@ -1 +1 @@
-* @Goncalo-Marques @joaotomaspinheiro @gjad-hub
+* @Goncalo-Marques @joaotomaspinheiro @goncalojdias

.github/workflows/ci-android.yml

@@ -0,0 +1,31 @@
+name: CI Android
+
+on:
+  pull_request:
+    branches:
+      - main
+    paths:
+      - "android/**"
+
+defaults:
+  run:
+    working-directory: ./android
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up JDK
+        uses: actions/setup-java@v4
+        with:
+          distribution: "temurin"
+          java-version: "17"
+          cache: "gradle"
+
+      - name: Run lint
+        run: |
+          ./gradlew lint

.gitignore

@@ -15,3 +15,14 @@ npm-debug.log*
 # Editor directories and files
 .vscode
 !.vscode/extensions.json
+
+# Android
+*.iml
+.gradle
+local.properties
+.idea
+build
+captures
+.externalNativeBuild
+.cxx
+

README.md

@@ -10,7 +10,9 @@ The following section focuses on the development part of the project, including
 
 - [Prerequisites](#prerequisites)
   - [Web App](#web-app)
+  - [Android App](#android-app)
 - [Web App](#web-app-1)
+- [Android App](#android-app-1)
 - [Contributing](#contributing)
 
 ## Prerequisites
@@ -25,6 +27,12 @@ Install the dependencies inside the `web` directory with:
 npm install
 ```
 
+### Android App
+
+The Android application targets Android SDK 34.
+
+Install [Android Studio](https://developer.android.com/studio) before you start contributing to the Android project.
+
 ## Web App
 
 The web application can be found in the `web` directory. It uses [Svelte](https://svelte.dev/).
@@ -35,6 +43,12 @@ The web application contains several scripts to lint, build and run the project.
 npm run
 ```
 
+## Android App
+
+The Android application can be found in the `android` directory.
+
+Use [gradlew](android/gradlew) to lint, build and run the project from the command line.
+
 ## Contributing
 
 ### Branches

android/app/build.gradle.kts

@@ -0,0 +1,53 @@
+plugins {
+    alias(libs.plugins.androidApplication)
+    alias(libs.plugins.jetbrainsKotlinAndroid)
+}
+
+android {
+    namespace = "com.ecomap.ecomap"
+    compileSdk = 34
+
+    defaultConfig {
+        applicationId = "com.ecomap.ecomap"
+        minSdk = 24
+        targetSdk = 34
+        versionCode = 1
+        versionName = "1.0"
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    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"
+    }
+
+    lint {
+        warningsAsErrors = true
+        textReport = true
+    }
+}
+
+dependencies {
+
+    implementation(libs.androidx.core.ktx)
+    implementation(libs.androidx.appcompat)
+    implementation(libs.material)
+    implementation(libs.androidx.activity)
+    implementation(libs.androidx.constraintlayout)
+    testImplementation(libs.junit)
+    androidTestImplementation(libs.androidx.junit)
+    androidTestImplementation(libs.androidx.espresso.core)
+}

android/app/proguard-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

android/app/src/androidTest/java/com/ecomap/ecomap/ExampleInstrumentedTest.kt

@@ -0,0 +1,24 @@
+package com.ecomap.ecomap
+
+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.ecomap.ecomap", appContext.packageName)
+    }
+}

android/app/src/main/AndroidManifest.xml

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <application
+        android:allowBackup="true"
+        android:dataExtractionRules="@xml/data_extraction_rules"
+        android:fullBackupContent="@xml/backup_rules"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.EcoMap"
+        tools:targetApi="31">
+        <activity
+            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>
+    </application>
+
+</manifest>

android/app/src/main/java/com/ecomap/ecomap/MainActivity.kt

@@ -0,0 +1,20 @@
+package com.ecomap.ecomap
+
+import android.os.Bundle
+import androidx.activity.enableEdgeToEdge
+import androidx.appcompat.app.AppCompatActivity
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
+
+class MainActivity : AppCompatActivity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enableEdgeToEdge()
+        setContentView(R.layout.activity_main)
+        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main)) { v, insets ->
+            val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
+            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)
+            insets
+        }
+    }
+}