feat(app): add an android app that loads beta.rxresu.me through a webview

app/app/.editorconfig

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+root = true
+
+[*]
+charset = utf-8
+indent_size = 4
+indent_style = space
+insert_final_newline = true
+trim_trailing_whitespace = true

app/app/.gitignore

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+/build

app/app/build.gradle

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+plugins {
+    id 'com.android.application'
+    id 'org.jetbrains.kotlin.android'
+}
+
+android {
+    compileSdk 32
+
+    defaultConfig {
+        applicationId "me.rxresu.app"
+        minSdk 21
+        targetSdk 32
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled 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 'androidx.core:core-ktx:1.7.0'
+    implementation 'com.google.android.material:material:1.5.0'
+    implementation 'androidx.swiperefreshlayout:swiperefreshlayout:1.1.0'
+    testImplementation 'junit:junit:4.13.2'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+}

app/app/proguard-rules.pro

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+# 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

app/app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="me.rxresu.app">
+
+    <uses-permission android:name="android.permission.INTERNET"/>
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.ReactiveResume.NoActionBar">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:theme="@style/Theme.ReactiveResume.NoActionBar">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

app/app/src/main/java/me/rxresu/app/MainActivity.kt

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+package me.rxresu.app
+
+import android.annotation.SuppressLint
+import android.graphics.Bitmap
+import android.os.Bundle
+import android.view.KeyEvent
+import android.webkit.WebResourceError
+import android.webkit.WebResourceRequest
+import android.webkit.WebView
+import android.webkit.WebViewClient
+import androidx.appcompat.app.AppCompatActivity
+import androidx.swiperefreshlayout.widget.SwipeRefreshLayout
+
+class MainActivity : AppCompatActivity() {
+
+    private lateinit var webView: WebView
+    private lateinit var swipeLayout: SwipeRefreshLayout
+
+    private var isLoaded: Boolean = false
+    private var webURL = "https://beta.rxresu.me"
+
+    @SuppressLint("SetJavaScriptEnabled")
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_main)
+
+        webView = findViewById(R.id.webview)
+        swipeLayout = findViewById(R.id.swipelayout)
+
+        webView.settings.javaScriptEnabled = true
+        webView.settings.userAgentString = "Mozilla/5.0 (Linux; Android 8.0; Pixel 2 Build/OPD3.170816.012) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.4577.82 Mobile Safari/537.36"
+
+        swipeLayout.setOnRefreshListener {
+            webView.reload()
+
+            swipeLayout.isRefreshing = false
+        }
+    }
+
+    override fun onResume() {
+        if (!isLoaded) loadWebView()
+
+        super.onResume()
+    }
+
+    private fun loadWebView() {
+        webView.loadUrl(webURL)
+
+        webView.webViewClient = object : WebViewClient() {
+            override fun shouldOverrideUrlLoading(view: WebView?, request: WebResourceRequest?): Boolean {
+                val url = request?.url.toString()
+                view?.loadUrl(url)
+                return super.shouldOverrideUrlLoading(view, request)
+            }
+
+            override fun onPageStarted(view: WebView?, url: String?, favicon: Bitmap?) {
+                super.onPageStarted(view, url, favicon)
+            }
+
+            override fun onPageFinished(view: WebView?, url: String?) {
+                isLoaded = true
+                super.onPageFinished(view, url)
+            }
+
+            override fun onReceivedError(view: WebView, request: WebResourceRequest, error: WebResourceError) {
+                isLoaded = false
+                super.onReceivedError(view, request, error)
+            }
+        }
+    }
+
+    override fun onKeyDown(keyCode: Int, event: KeyEvent): Boolean {
+        if (event.action == KeyEvent.ACTION_DOWN) {
+            if (keyCode == KeyEvent.KEYCODE_BACK) {
+                if (webView.canGoBack()) {
+                    webView.goBack()
+                }
+
+                return true
+            }
+        }
+
+        return super.onKeyDown(keyCode, event)
+    }
+}

app/app/src/main/res/layout/activity_main.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<androidx.coordinatorlayout.widget.CoordinatorLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".MainActivity">
+
+  <include
+    layout="@layout/content_main"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:visibility="visible" />
+
+</androidx.coordinatorlayout.widget.CoordinatorLayout>

app/app/src/main/res/layout/content_main.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<androidx.swiperefreshlayout.widget.SwipeRefreshLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:id="@+id/swipelayout"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <WebView
+        android:id="@+id/webview"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:visibility="visible"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+</androidx.swiperefreshlayout.widget.SwipeRefreshLayout>

app/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/ic_launcher_background"/>
+    <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
+</adaptive-icon>

app/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/ic_launcher_background"/>
+    <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
+</adaptive-icon>

app/app/src/main/res/values/ic_launcher_background.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="ic_launcher_background">#FFFFFF</color>
+</resources>

app/app/src/main/res/values/strings.xml

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+<resources>
+    <string name="app_name">Reactive Resume</string>
+</resources>

app/app/src/main/res/values/themes.xml

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+<resources>
+    <style name="Theme.ReactiveResume" parent="Theme.MaterialComponents.DayNight.DarkActionBar" />
+
+    <style name="Theme.ReactiveResume.NoActionBar">
+        <item name="windowActionBar">false</item>
+        <item name="windowNoTitle">true</item>
+    </style>
+
+    <style name="Theme.ReactiveResume.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
+
+    <style name="Theme.ReactiveResume.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />
+</resources>