Initial project files

.gitignore

@@ -0,0 +1,15 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+/*/build/

README.md

@@ -1,2 +1,9 @@
-# arcore-filament-example-app
-ARCore Filament Example App
+## AR Core Filament Example App
+
+This project is an example of how to get ARCore working with Filament without the use of Sceneform
+Android SDK.
+
+This app shows detected planes and can manipulate a single model with pinch and rotate.
+
+## Attribution
+Sample GLB model with animation provided by Queenie Chan on https://poly.google.com/view/dh3af8qUMl1

app/.gitignore

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

app/build.gradle

@@ -0,0 +1,155 @@
+apply plugin: 'com.android.application'
+
+apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-android-extensions'
+apply plugin: 'kotlin-kapt'
+
+apply plugin: 'androidx.navigation.safeargs.kotlin'
+
+android {
+    compileSdkVersion 30
+    buildToolsVersion '30.0.2'
+    defaultConfig {
+        applicationId 'com.example.app'
+        minSdkVersion 26
+        targetSdkVersion 30
+        versionCode 13
+        versionName '0.0.1'
+    }
+    buildTypes {
+        debug {
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = '1.8'
+        kotlinOptions.freeCompilerArgs = ['-Xinline-classes']
+    }
+    buildFeatures.viewBinding = true
+    // We use the .filamat extension for materials compiled with matc
+    // Telling aapt to not compress them allows to load them efficiently
+    aaptOptions {
+        noCompress 'filamat', 'ktx'
+    }
+}
+kapt {
+    useBuildCache = false
+}
+dependencies {
+    implementation(fileTree(dir: "libs", include: ["*.jar"]))
+
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
+
+    api 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.9'
+    api 'org.jetbrains.kotlinx:kotlinx-coroutines-rx2:1.3.9-native-mt'
+    api 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.9'
+    api 'org.jetbrains.kotlinx:kotlinx-coroutines-play-services:1.3.9'
+
+    api 'androidx.appcompat:appcompat:1.2.0'
+
+    api 'androidx.arch.core:core-common:2.1.0'
+    api 'androidx.arch.core:core-runtime:2.1.0'
+
+    api 'androidx.vectordrawable:vectordrawable:1.1.0'
+    api 'androidx.vectordrawable:vectordrawable-animated:1.1.0'
+
+    api 'androidx.dynamicanimation:dynamicanimation-ktx:1.0.0-alpha03'
+
+    api 'androidx.interpolator:interpolator:1.0.0'
+
+    api 'androidx.annotation:annotation:1.2.0-alpha01'
+
+    api 'androidx.palette:palette-ktx:1.0.0'
+
+    api 'androidx.savedstate:savedstate:1.1.0-alpha01'
+
+    api 'androidx.autofill:autofill:1.0.0'
+
+    api 'androidx.transition:transition:1.3.1'
+
+    api 'androidx.biometric:biometric:1.0.1'
+
+    api 'androidx.lifecycle:lifecycle-extensions:2.2.0'
+    api 'androidx.lifecycle:lifecycle-common-java8:2.3.0-alpha07'
+    api 'androidx.lifecycle:lifecycle-livedata-core-ktx:2.3.0-alpha07'
+    api 'androidx.lifecycle:lifecycle-livedata-ktx:2.3.0-alpha07'
+    api 'androidx.lifecycle:lifecycle-reactivestreams-ktx:2.3.0-alpha07'
+    api 'androidx.lifecycle:lifecycle-runtime-ktx:2.3.0-alpha07'
+    api 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.3.0-alpha07'
+
+    api 'androidx.work:work-runtime-ktx:2.4.0'
+    api 'androidx.work:work-rxjava2:2.4.0'
+    api 'androidx.work:work-gcm:2.4.0'
+
+    api 'androidx.emoji:emoji:1.1.0'
+    api 'androidx.emoji:emoji-appcompat:1.1.0'
+
+    api 'androidx.room:room-runtime:2.2.5'
+    api 'androidx.room:room-rxjava2:2.2.5'
+    api 'androidx.room:room-ktx:2.2.5'
+    kapt 'androidx.room:room-compiler:2.2.5'
+
+    api 'androidx.sqlite:sqlite-ktx:2.1.0'
+
+    api 'androidx.legacy:legacy-support-v4:1.0.0'
+
+    api 'androidx.constraintlayout:constraintlayout:2.0.1'
+    api 'androidx.recyclerview:recyclerview:1.1.0'
+    api 'androidx.coordinatorlayout:coordinatorlayout:1.1.0'
+    api 'androidx.drawerlayout:drawerlayout:1.1.0'
+    api 'androidx.swiperefreshlayout:swiperefreshlayout:1.1.0'
+    api 'androidx.gridlayout:gridlayout:1.0.0'
+    api 'androidx.cardview:cardview:1.0.0'
+    api 'androidx.viewpager:viewpager:1.0.0'
+    api 'androidx.browser:browser:1.3.0-alpha05'
+
+    api 'androidx.core:core:1.5.0-alpha02'
+
+    api 'androidx.slice:slice-builders:1.1.0-alpha01'
+    api 'androidx.slice:slice-builders-ktx:1.0.0-alpha6'
+
+    api 'androidx.slice:slice-core:1.1.0-alpha01'
+    api 'androidx.slice:slice-view:1.1.0-alpha01'
+
+    // KTX Extensions
+    api 'androidx.core:core-ktx:1.3.1'
+
+    api 'androidx.activity:activity-ktx:1.2.0-alpha08'
+
+    api 'androidx.benchmark:benchmark-junit4:1.0.0'
+
+    api 'androidx.collection:collection-ktx:1.1.0'
+
+    api 'androidx.fragment:fragment-ktx:1.3.0-alpha08'
+
+    api 'androidx.navigation:navigation-runtime-ktx:2.3.0'
+    api 'androidx.navigation:navigation-fragment-ktx:2.3.0'
+    api 'androidx.navigation:navigation-ui-ktx:2.3.0'
+    api 'androidx.navigation:navigation-dynamic-features-fragment:2.3.0'
+
+    api 'androidx.paging:paging-common-ktx:2.1.2'
+    api 'androidx.paging:paging-runtime-ktx:2.1.2'
+    api 'androidx.paging:paging-rxjava2-ktx:2.1.2'
+
+    api 'androidx.preference:preference-ktx:1.1.1'
+
+    api 'com.google.android.play:core-ktx:1.8.1'
+
+    api 'com.google.android.material:material:1.3.0-alpha02'
+
+    api 'com.google.ar:core:1.18.0'
+
+    api 'com.google.android.filament:filament-android:1.8.1'
+    api 'com.google.android.filament:filament-utils-android:1.8.1'
+    api 'com.google.android.filament:gltfio-android:1.8.1'
+
+    // Third Party Dependencies
+
+    api 'io.arrow-kt:arrow-fx:0.10.5'
+
+    api 'io.reactivex.rxjava2:rxjava:2.2.19'
+    api 'io.reactivex.rxjava2:rxandroid:2.1.1'
+}

app/proguard-rules.pro

@@ -0,0 +1,26 @@
+# 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
+
+-keep class com.example.app.** { *; }
+
+# Filament
+-keep class com.google.android.filament.** { *; }

app/src/main/AndroidManifest.xml

@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    package="com.example.app">
+
+    <uses-permission android:name="android.permission.CAMERA" />
+
+    <uses-feature android:name="android.hardware.camera" />
+
+    <uses-feature
+        android:glEsVersion="0x00030000"
+        android:required="true" />
+
+    <!-- Play Store listing only on devices that support ARCore -->
+    <uses-feature
+        android:name="android.hardware.camera.ar"
+        android:required="true" />
+
+    <application
+        android:name=".ExampleApplication"
+        android:allowBackup="false"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.ExampleApp">
+
+        <activity
+            android:name=".aractivity.ArActivity"
+            android:configChanges="orientation|screenSize|screenLayout|keyboardHidden"
+            android:launchMode="singleTask"
+            android:resizeableActivity="false"
+            android:screenOrientation="fullSensor"
+            android:theme="@style/Theme.ExampleApp.Fullscreen"
+            android:windowSoftInputMode="adjustPan|stateHidden">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+        <meta-data
+            android:name="com.google.ar.core"
+            android:value="required" />
+    </application>
+</manifest>

app/src/main/java/com/example/app/AutoHideSystemUi.kt

@@ -0,0 +1,56 @@
+package com.example.app
+
+import android.app.Activity
+import android.view.View
+import io.reactivex.Single
+import io.reactivex.android.schedulers.AndroidSchedulers
+import io.reactivex.disposables.CompositeDisposable
+import java.util.concurrent.TimeUnit
+
+interface AutoHideSystemUi {
+    val onSystemUiFlagHideNavigationDisposable: CompositeDisposable
+}
+
+fun <T> T.onCreateAutoHideSystemUi() where T : Activity, T : AutoHideSystemUi {
+    @Suppress("DEPRECATION")
+    window.decorView.systemUiVisibility = View.SYSTEM_UI_FLAG_LAYOUT_STABLE or
+            View.SYSTEM_UI_FLAG_HIDE_NAVIGATION or
+            View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN or
+            View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION or
+            View.SYSTEM_UI_FLAG_IMMERSIVE
+
+    @Suppress("DEPRECATION")
+    window.decorView.setOnSystemUiVisibilityChangeListener { visibility ->
+        // immersive mode will not automatically hide the navigation bar after being revealed
+        if (visibility and View.SYSTEM_UI_FLAG_HIDE_NAVIGATION == 0) {
+            onResumeAutoHideSystemUi()
+        }
+    }
+}
+
+fun <T> T.onResumeAutoHideSystemUi() where T : Activity, T : AutoHideSystemUi {
+    @Suppress("DEPRECATION")
+    if (window.decorView.systemUiVisibility and View.SYSTEM_UI_FLAG_HIDE_NAVIGATION == 0) {
+        onSystemUiFlagHideNavigationDisposable.clear()
+
+        Single.just(Unit)
+            .delay(
+                resources
+                    .getInteger(R.integer.hide_system_navigation_timeout_seconds)
+                    .toLong(),
+                TimeUnit.SECONDS
+            )
+            .observeOn(AndroidSchedulers.mainThread())
+            .subscribe(
+                {
+                    window.decorView.systemUiVisibility =
+                        window.decorView.systemUiVisibility or
+                                View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
+                },
+                {}
+            )
+            // Do not remove: Kotlin has a bug where it casts Boolean result of previous statement to
+            // Unit
+            .let { onSystemUiFlagHideNavigationDisposable.add(it); Unit }
+    }
+}

app/src/main/java/com/example/app/ExampleApplication.kt

@@ -0,0 +1,28 @@
+package com.example.app
+
+import android.app.Application
+import android.os.Looper
+import com.google.android.filament.utils.Utils
+import io.reactivex.android.plugins.RxAndroidPlugins
+import io.reactivex.android.schedulers.AndroidSchedulers
+import io.reactivex.plugins.RxJavaPlugins
+
+class ExampleApplication : Application() {
+    companion object {
+        lateinit var instance: ExampleApplication private set
+    }
+
+    override fun onCreate() {
+        super.onCreate()
+        instance = this
+
+        RxAndroidPlugins.setInitMainThreadSchedulerHandler {
+            AndroidSchedulers.from(Looper.getMainLooper(), true)
+        }
+
+        RxJavaPlugins.setErrorHandler {
+        }
+
+        Utils.init()
+    }
+}