build: setup new libre build type without accessibility services

Author: cyb3rko

app/build.gradle.kts

@@ -1,3 +1,5 @@
+@file:Suppress("UnstableApiUsage")
+
 import org.jetbrains.kotlin.gradle.dsl.JvmTarget
 import java.util.Properties
 
@@ -37,6 +39,16 @@ android {
                 "proguard-rules.pro"
             )
         }
+        // buildType without accessibility services
+        register("libre") {
+            resValue("string", "app_name", "FlashDim")
+            isMinifyEnabled = true
+            isShrinkResources = true
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules-libre.pro"
+            )
+        }
     }
     compileOptions {
         sourceCompatibility = JavaVersion.VERSION_17
@@ -85,8 +97,8 @@ if (project.hasProperty("sign")) {
 }
 
 // Manual Accrescent build
-// build with '-Pmanual_upload_oss buildApksRelease'
-// output at 'app/build/outputs/apkset/release/app-release.apks'
+// build with '-Pmanual_upload_oss buildApksLibre'
+// output at 'app/build/outputs/apkset/libre/app-libre.apks'
 if (project.hasProperty("manual_upload_oss")) {
     bundletool {
         val properties = Properties()

app/proguard-rules-libre.pro

@@ -0,0 +1,8 @@
+# For stack traces
+-keepattributes SourceFile, LineNumberTable
+
+# Get rid of package names, makes file smaller
+-repackageclasses
+
+# Keep all FlashDim class names, except accessibility service and accessibility info dialog
+-keep class !com.cyb3rko.flashdim.service.VolumeButtonService,!com.cyb3rko.flashdim.modals.AccessibilityInfoDialog, com.cyb3rko.flashdim.**

app/src/libre/AndroidManifest.xml

@@ -0,0 +1,17 @@
+<?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:name=".App"
+        tools:ignore="MissingApplicationIcon">
+
+        <!-- excluded in buildType "libre" -->
+        <service
+            android:name=".service.VolumeButtonService"
+            tools:node="remove" />
+
+    </application>
+
+</manifest>

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

@@ -0,0 +1,3 @@
+<resources>
+    <string name="preference_item_volume_buttons_summary">Only available in builds for Google Play, F-Droid and GitHub.</string>
+</resources>

app/src/main/AndroidManifest.xml

@@ -4,6 +4,7 @@
 
     <uses-permission android:name="android.permission.VIBRATE" />
     <uses-permission android:name="android.permission.FLASHLIGHT" />
+
     <!-- This feature is required for a flashlight app -->
     <uses-feature
         android:name="android.hardware.camera.flash"
@@ -68,6 +69,8 @@
                 android:value="false" />
         </service>
 
+        <!-- included in buildType "debug", "release" -->
+        <!-- excluded in buildType "libre" -->
         <service
             android:name=".service.VolumeButtonService"
             android:permission="android.permission.BIND_ACCESSIBILITY_SERVICE"

app/src/main/kotlin/com/cyb3rko/flashdim/activities/SettingsActivity.kt

@@ -30,6 +30,7 @@ import androidx.appcompat.app.AppCompatActivity
 import androidx.preference.Preference
 import androidx.preference.PreferenceFragmentCompat
 import androidx.preference.PreferenceManager
+import com.cyb3rko.flashdim.BuildConfig
 import com.cyb3rko.flashdim.R
 import com.cyb3rko.flashdim.databinding.ActivitySettingsBinding
 import com.cyb3rko.flashdim.modals.AccessibilityInfoDialog
@@ -154,9 +155,15 @@ internal class SettingsActivity :
                     true
                 }
             }
-            findPreference<Preference>("volume_buttons")?.setOnPreferenceClickListener {
-                AccessibilityInfoDialog.show(myContext)
-                true
+            @Suppress("KotlinConstantConditions")
+            if (BuildConfig.BUILD_TYPE != "libre") {
+                findPreference<Preference>("volume_buttons")?.apply {
+                    isEnabled = true
+                    setOnPreferenceClickListener {
+                        AccessibilityInfoDialog.show(myContext)
+                        true
+                    }
+                }
             }
         }
 

app/src/main/kotlin/com/cyb3rko/flashdim/modals/AccessibilityInfoDialog.kt

@@ -23,6 +23,8 @@ import com.cyb3rko.flashdim.R
 import com.google.android.material.R as MaterialR
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
 
+// included in buildType "debug", "release"
+// excluded in buildType "libre"
 internal object AccessibilityInfoDialog {
     fun show(context: Context) {
         MaterialAlertDialogBuilder(

app/src/main/kotlin/com/cyb3rko/flashdim/service/VolumeButtonService.kt

@@ -27,6 +27,8 @@ import android.view.accessibility.AccessibilityEvent
 import com.cyb3rko.flashdim.Camera
 import com.cyb3rko.flashdim.utils.Safe
 
+// included in buildType "debug", "release"
+// excluded in buildType "libre"
 class VolumeButtonService : AccessibilityService() {
     private var volumeUpPressed = false
     private var volumeDownPressed = false

app/src/main/res/xml/preferences.xml

@@ -50,6 +50,7 @@
         <Preference
             app:key="volume_buttons"
             app:title="@string/preference_item_volume_buttons"
+            app:enabled="false"
             app:summary="@string/preference_item_volume_buttons_summary"
             app:icon="@drawable/ic_button_service" />