first release

2021-06-11 20:20:42 +01:00 · 2021-06-11 20:20:42 +01:00 · cb4ac000bc
commit cb4ac000bc
54 changed files with 1636 additions and 0 deletions
--- a/.gitignore
+++ b/.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
+local.properties
--- a/.idea/.gitignore
+++ b/.idea/.gitignore
@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml
--- a/.idea/compiler.xml
+++ b/.idea/compiler.xml
@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <bytecodeTargetLevel target="11" />
+  </component>
+</project>
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GradleSettings">
+    <option name="linkedExternalProjectsSettings">
+      <GradleProjectSettings>
+        <option name="testRunner" value="PLATFORM" />
+        <option name="distributionType" value="DEFAULT_WRAPPED" />
+        <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="modules">
+          <set>
+            <option value="$PROJECT_DIR$" />
+            <option value="$PROJECT_DIR$/app" />
+          </set>
+        </option>
+        <option name="resolveModulePerSourceSet" value="false" />
+      </GradleProjectSettings>
+    </option>
+  </component>
+</project>
--- a/.idea/jarRepositories.xml
+++ b/.idea/jarRepositories.xml
@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RemoteRepositoriesConfiguration">
+    <remote-repository>
+      <option name="id" value="central" />
+      <option name="name" value="Maven Central repository" />
+      <option name="url" value="https://repo1.maven.org/maven2" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="jboss.community" />
+      <option name="name" value="JBoss Community repository" />
+      <option name="url" value="https://repository.jboss.org/nexus/content/repositories/public/" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="MavenRepo" />
+      <option name="name" value="MavenRepo" />
+      <option name="url" value="https://repo.maven.apache.org/maven2/" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="BintrayJCenter" />
+      <option name="name" value="BintrayJCenter" />
+      <option name="url" value="https://jcenter.bintray.com/" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="Google" />
+      <option name="name" value="Google" />
+      <option name="url" value="https://dl.google.com/dl/android/maven2/" />
+    </remote-repository>
+  </component>
+</project>
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/build/classes" />
+  </component>
+  <component name="ProjectType">
+    <option name="id" value="Android" />
+  </component>
+</project>
--- a/.idea/runConfigurations.xml
+++ b/.idea/runConfigurations.xml
@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RunConfigurationProducerService">
+    <option name="ignoredProducers">
+      <set>
+        <option value="com.android.tools.idea.compose.preview.runconfiguration.ComposePreviewRunConfigurationProducer" />
+      </set>
+    </option>
+  </component>
+</project>
--- a/.idea/vcs.xml
+++ b/.idea/vcs.xml
@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>
--- a/app/.gitignore
+++ b/app/.gitignore
@ -0,0 +1 @@
+/build
--- a/app/build.gradle
+++ b/app/build.gradle
@ -0,0 +1,55 @@
+plugins {
+    id 'com.android.application'
+    id 'kotlin-android'
+}
+
+android {
+    compileSdkVersion 30
+    buildToolsVersion "30.0.3"
+
+    defaultConfig {
+        applicationId "com.fredhappyface.whoosticker"
+        minSdkVersion 28
+        targetSdkVersion 30
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        android.applicationVariants.all { variant ->
+            variant.outputs.each { output ->
+                output.outputFileName = output.outputFileName.replace(".apk", "_" + defaultConfig.versionName + "_" + LocalDate.now() + ".apk")
+            }
+        }
+        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'
+    }
+}
+
+dependencies {
+
+    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
+    implementation 'androidx.core:core-ktx:1.5.0'
+    implementation 'androidx.appcompat:appcompat:1.3.0'
+    implementation 'com.google.android.material:material:1.3.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
+    implementation 'androidx.navigation:navigation-fragment-ktx:2.3.5'
+    implementation 'androidx.navigation:navigation-ui-ktx:2.3.5'
+    implementation 'androidx.preference:preference-ktx:1.1.1'
+    testImplementation 'junit:junit:4.13.2'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
+
+    implementation "com.github.penfeizhou.android.animation:apng:2.10.0"
+}
--- a/app/proguard-rules.pro
+++ b/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
--- a/app/src/androidTest/java/com/fredhappyface/whoosticker/ExampleInstrumentedTest.kt
+++ b/app/src/androidTest/java/com/fredhappyface/whoosticker/ExampleInstrumentedTest.kt
@ -0,0 +1,24 @@
+package com.fredhappyface.whoosticker
+
+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.fredhappyface.whoosticker", appContext.packageName)
+	}
+}
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@ -0,0 +1,50 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    package="com.fredhappyface.whoosticker">
+
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
+
+    <application
+        android:allowBackup="false"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:theme="@style/AppTheme"
+        android:usesCleartextTraffic="true"
+        tools:ignore="GoogleAppIndexingWarning">
+        <activity
+            android:name="com.fredhappyface.whoosticker.MainActivity"
+            android:configChanges="keyboard|keyboardHidden|orientation|screenSize"
+            android:exported="true"
+            android:label="@string/app_name"
+            android:windowSoftInputMode="adjustResize">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <service
+            android:name="com.fredhappyface.whoosticker.ImageKeyboard"
+            android:label="WhooSticker"
+            android:permission="android.permission.BIND_INPUT_METHOD">
+            <meta-data
+                android:name="android.view.im"
+                android:resource="@xml/method" />
+            <intent-filter>
+                <action android:name="android.view.InputMethod" />
+            </intent-filter>
+        </service>
+
+        <provider
+            android:name="androidx.core.content.FileProvider"
+            android:authorities="com.fredhappyface.whoosticker.inputcontent"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/file_paths" />
+        </provider>
+
+    </application>
+
+</manifest>
--- a/app/src/main/ic_launcher-playstore.png
+++ b/app/src/main/ic_launcher-playstore.png
--- a/app/src/main/java/com/fredhappyface/whoosticker/ImageKeyboard.kt
+++ b/app/src/main/java/com/fredhappyface/whoosticker/ImageKeyboard.kt
@ -0,0 +1,329 @@
+package com.fredhappyface.whoosticker
+
+import android.content.ClipDescription
+import android.content.SharedPreferences
+import android.graphics.Bitmap
+import android.graphics.ImageDecoder
+import android.graphics.drawable.AnimatedImageDrawable
+import android.graphics.drawable.Drawable
+import android.inputmethodservice.InputMethodService
+import android.view.View
+import android.view.inputmethod.EditorInfo
+import android.view.inputmethod.InputMethodManager
+import android.widget.ImageButton
+import android.widget.LinearLayout
+import android.widget.RelativeLayout
+import android.widget.Toast
+import androidx.cardview.widget.CardView
+import androidx.core.content.FileProvider
+import androidx.core.content.res.ResourcesCompat
+import androidx.core.view.inputmethod.EditorInfoCompat
+import androidx.core.view.inputmethod.InputConnectionCompat
+import androidx.core.view.inputmethod.InputContentInfoCompat
+import androidx.preference.PreferenceManager
+import com.github.penfeizhou.animation.apng.APNGDrawable
+import java.io.File
+import java.io.FileOutputStream
+import java.io.IOException
+import java.util.*
+
+class ImageKeyboard : InputMethodService() {
+	// Attributes
+	private lateinit var supportedMimes: MutableMap<String, String>
+	private var loadedPacks = HashMap<String, StickerPack>()
+	private var imageContainer: LinearLayout? = null
+	private var packContainer: LinearLayout? = null
+	private lateinit var internalDir: File
+	private var iconsPerRow = 0
+	private var iconSize = 0
+	private lateinit var sharedPreferences: SharedPreferences
+
+	/**
+	 * Adds a back button as a PackCard to keyboard that shows the InputMethodPicker
+	 */
+	private fun addBackButtonToContainer() {
+		val packCard = layoutInflater.inflate(R.layout.pack_card, packContainer, false)
+		val backButton = packCard.findViewById<ImageButton>(R.id.ib3)
+		val icon =
+			ResourcesCompat.getDrawable(resources, R.drawable.tabler_icon_arrow_back_white, null)
+		backButton.setImageDrawable(icon)
+		backButton.setOnClickListener {
+			val inputMethodManager = applicationContext
+				.getSystemService(INPUT_METHOD_SERVICE) as InputMethodManager
+			inputMethodManager.showInputMethodPicker()
+		}
+		packContainer!!.addView(packCard)
+	}
+
+	/**
+	 * Adds a pack card to the keyboard from a StickerPack
+	 *
+	 * @param pack: StickerPack - the sticker pack to add
+	 */
+	private fun addPackToContainer(pack: StickerPack) {
+		val packCard = layoutInflater.inflate(R.layout.pack_card, packContainer, false)
+		val packButton = packCard.findViewById<ImageButton>(R.id.ib3)
+		setPackButtonImage(pack, packButton)
+		packButton.tag = pack
+		packButton.setOnClickListener { view: View ->
+			imageContainer!!.removeAllViewsInLayout()
+			recreateImageContainer(view.tag as StickerPack)
+		}
+		packContainer!!.addView(packCard)
+	}
+
+	/**
+	 * In the event that a mimetype is unsupported by a InputConnectionCompat (looking at you, Signal)
+	 * Create a temporary png and send that. In the event that png is not supported, create a toast as before
+	 *
+	 * @param file: File
+	 */
+	private fun doFallbackCommitContent(file: File) {
+		// PNG might not be supported so fallback to toast
+		if (supportedMimes[".png"] == null) {
+			Toast.makeText(
+				applicationContext, Utils.getFileExtension(file.name) +
+						" not supported here.", Toast.LENGTH_LONG
+			).show()
+			return
+		}
+		// Create a new compatSticker and convert the sticker to png
+		val compatSticker = File(filesDir, "stickers/__compatSticker__/__compatSticker__.png")
+		compatSticker.parentFile?.mkdirs() // Protect against null pointer exception
+		try {
+			ImageDecoder.decodeBitmap(ImageDecoder.createSource(file))
+				.compress(Bitmap.CompressFormat.PNG, 90, FileOutputStream(compatSticker))
+		} catch (ignore: IOException) {
+		}
+		// Send the compatSticker!
+		doCommitContent("description", "image/png", compatSticker)
+	}
+
+	/**
+	 * @param description: String
+	 * @param mimeType:    String
+	 * @param file:        File
+	 */
+	private fun doCommitContent(
+		description: String, mimeType: String,
+		file: File
+	) {
+		val contentUri = FileProvider.getUriForFile(this, AUTHORITY, file)
+		val flag = InputConnectionCompat.INPUT_CONTENT_GRANT_READ_URI_PERMISSION
+		val inputContentInfoCompat = InputContentInfoCompat(
+			contentUri,
+			ClipDescription(description, arrayOf(mimeType)),
+			null
+		)
+		InputConnectionCompat.commitContent(
+			currentInputConnection, currentInputEditorInfo, inputContentInfoCompat,
+			flag, null
+		)
+	}
+
+	/**
+	 * Apply a sticker file to the image button
+	 *
+	 * @param sticker: File - the file object representing the sticker
+	 * @param btn:     ImageButton - the button
+	 */
+	private fun setStickerButtonImage(sticker: File, btn: ImageButton) {
+		val sName = sticker.name
+		// Create drawable from file
+		var drawable: Drawable? = null
+		try {
+			drawable = ImageDecoder.decodeDrawable(ImageDecoder.createSource(sticker))
+		} catch (ignore: IOException) {
+		}
+		if (sName.contains(".png") || sName.contains(".apng")) {
+			drawable = APNGDrawable.fromFile(sticker.absolutePath)
+			drawable!!.setAutoPlay(false)
+			drawable.start()
+		}
+		// Disable animations?
+		if (drawable is AnimatedImageDrawable && !sharedPreferences.getBoolean(
+				"disable_animations",
+				false
+			)
+		) {
+			drawable.start()
+		}
+		if (drawable is APNGDrawable && sharedPreferences.getBoolean("disable_animations", false)) {
+			drawable.stop()
+		}
+		// Apply
+		btn.setImageDrawable(drawable)
+	}
+
+	/**
+	 * Apply a sticker the the pack icon (imagebutton)
+	 *
+	 * @param pack: StickerPack - the stickerpack to grab the pack icon from
+	 * @param btn:  ImageButton - the button
+	 */
+	private fun setPackButtonImage(pack: StickerPack, btn: ImageButton) {
+		setStickerButtonImage(pack.thumbSticker, btn)
+	}
+
+	/**
+	 * Check if the sticker is supported by the receiver
+	 *
+	 * @param editorInfo: EditorInfo - the editor/ receiver
+	 * @param mimeType:   String - the image mimetype
+	 * @return boolean - is the mimetype supported?
+	 */
+	private fun isCommitContentSupported(
+		editorInfo: EditorInfo?, mimeType: String
+	): Boolean {
+		if (editorInfo == null) {
+			return false
+		}
+		currentInputConnection ?: return false
+		if (!validatePackageName(editorInfo)) {
+			return false
+		}
+		val supportedMimeTypes = EditorInfoCompat.getContentMimeTypes(editorInfo)
+		for (supportedMimeType in supportedMimeTypes) {
+			if (ClipDescription.compareMimeTypes(mimeType, supportedMimeType)) {
+				return true
+			}
+		}
+		return false
+	}
+
+	override fun onCreate() {
+		super.onCreate()
+		sharedPreferences = PreferenceManager.getDefaultSharedPreferences(baseContext)
+		iconsPerRow = sharedPreferences.getInt("iconsPerRow", 3)
+		iconSize = sharedPreferences.getInt("iconSize", 160)
+		reloadPacks()
+	}
+
+	override fun onCreateInputView(): View {
+		val keyboardLayout =
+			layoutInflater.inflate(R.layout.keyboard_layout, null) as RelativeLayout
+		packContainer = keyboardLayout.findViewById(R.id.packContainer)
+		imageContainer = keyboardLayout.findViewById(R.id.imageContainer)
+		imageContainer?.layoutParams?.height = (iconSize * iconsPerRow * 1.4).toInt()
+		recreatePackContainer()
+		return keyboardLayout
+	}
+
+	override fun onEvaluateFullscreenMode(): Boolean {
+		// In full-screen mode the inserted content is likely to be hidden by the IME. Hence in this
+		// sample we simply disable full-screen mode.
+		return false
+	}
+
+	override fun onStartInputView(info: EditorInfo?, restarting: Boolean) {
+		supportedMimes = Utils.getSupportedMimes()
+		var allSupported = true
+		val mimesToCheck = supportedMimes.keys.toTypedArray()
+		for (s in mimesToCheck) {
+			val mimeSupported = isCommitContentSupported(info, supportedMimes[s]!!)
+			allSupported = allSupported && mimeSupported
+			if (!mimeSupported) {
+				supportedMimes.remove(s)
+			}
+		}
+		if (!allSupported) {
+			Toast.makeText(
+				applicationContext,
+				"One or more image formats not supported here. Some stickers may not send correctly.",
+				Toast.LENGTH_LONG
+			).show()
+		}
+	}
+
+	private fun recreateImageContainer(pack: StickerPack) {
+		val imagesDir = File(filesDir, "stickers/$pack")
+		imagesDir.mkdirs()
+		imageContainer!!.removeAllViewsInLayout()
+		var imageContainerColumn = layoutInflater.inflate(
+			R.layout.image_container_column,
+			imageContainer,
+			false
+		) as LinearLayout
+		val stickers = pack.stickerList
+		for (i in stickers.indices) {
+			if (i % iconsPerRow == 0) {
+				imageContainerColumn = layoutInflater.inflate(
+					R.layout.image_container_column,
+					imageContainer,
+					false
+				) as LinearLayout
+			}
+			val imageCard = layoutInflater.inflate(
+				R.layout.sticker_card,
+				imageContainerColumn,
+				false
+			) as CardView
+			val imgButton = imageCard.findViewById<ImageButton>(R.id.ib3)
+			imgButton.layoutParams.height = iconSize
+			imgButton.layoutParams.width = iconSize
+			setStickerButtonImage(stickers[i], imgButton)
+			imgButton.tag = stickers[i]
+			imgButton.setOnClickListener { view: View ->
+				val file = view.tag as File
+				val stickerType = supportedMimes[Utils.getFileExtension(file.name)]
+				if (stickerType == null) {
+					doFallbackCommitContent(file)
+					return@setOnClickListener
+				}
+				doCommitContent(file.name, stickerType, file)
+			}
+			imageContainerColumn.addView(imageCard)
+			if (i % iconsPerRow == 0) {
+				imageContainer!!.addView(imageContainerColumn)
+			}
+		}
+	}
+
+	private fun recreatePackContainer() {
+		packContainer!!.removeAllViewsInLayout()
+		// Back button
+		if (sharedPreferences.getBoolean("showBackButton", false)) {
+			addBackButtonToContainer()
+		}
+		// Packs
+		val sortedPackNames = loadedPacks.keys.toTypedArray()
+		Arrays.sort(sortedPackNames)
+		for (sortedPackName in sortedPackNames) {
+			addPackToContainer(loadedPacks[sortedPackName]!!)
+		}
+		if (sortedPackNames.isNotEmpty()) {
+			recreateImageContainer(loadedPacks[sortedPackNames[0]]!!)
+		}
+	}
+
+	private fun reloadPacks() {
+		loadedPacks = HashMap()
+		internalDir = File(filesDir, "stickers")
+		val packs = internalDir.listFiles { obj: File -> obj.isDirectory }
+		if (packs != null) {
+			for (file in packs) {
+				val pack = StickerPack(file)
+				if (pack.stickerList.isNotEmpty()) {
+					loadedPacks[file.name] = pack
+				}
+			}
+		}
+		val baseStickers = internalDir.listFiles { obj: File -> obj.isFile }
+		if (baseStickers != null && baseStickers.isNotEmpty()) {
+			loadedPacks[""] = StickerPack(internalDir)
+		}
+	}
+
+	private fun validatePackageName(editorInfo: EditorInfo?): Boolean {
+		if (editorInfo == null) {
+			return false
+		}
+		val packageName = editorInfo.packageName
+		return packageName != null
+	}
+
+	companion object {
+		// Constants
+		private const val AUTHORITY = "com.fredhappyface.whoosticker.inputcontent"
+	}
+}
--- a/app/src/main/java/com/fredhappyface/whoosticker/MainActivity.kt
+++ b/app/src/main/java/com/fredhappyface/whoosticker/MainActivity.kt
@ -0,0 +1,266 @@
+package com.fredhappyface.whoosticker
+
+import android.content.Intent
+import android.content.SharedPreferences
+import android.net.Uri
+import android.os.Bundle
+import android.os.Handler
+import android.os.Looper
+import android.view.View
+import android.widget.*
+import android.widget.SeekBar.OnSeekBarChangeListener
+import androidx.appcompat.app.AppCompatActivity
+import androidx.documentfile.provider.DocumentFile
+import androidx.preference.PreferenceManager
+import java.io.File
+import java.io.IOException
+import java.nio.file.Files
+import java.util.*
+import java.util.concurrent.Executors
+
+class MainActivity : AppCompatActivity() {
+	private val chooseStickerDir = 62519
+	private val supportedMimes = Utils.getSupportedMimes()
+	lateinit var sharedPreferences: SharedPreferences
+
+	/**
+	 * For each sticker, check if it is in a compatible file format with WhooSticker
+	 *
+	 * @param sticker sticker to check compatibility with WhooSticker for
+	 * @return true if supported image type
+	 */
+	private fun canImportSticker(sticker: DocumentFile): Boolean {
+		val mimesToCheck = ArrayList(supportedMimes.keys)
+		return !(sticker.isDirectory ||
+				!mimesToCheck.contains(sticker.name?.let { Utils.getFileExtension(it) }))
+	}
+
+	/**
+	 * Called on button press to choose a new directory
+	 *
+	 * @param view: View
+	 */
+	fun chooseDir(view: View) {
+		val intent = Intent(Intent.ACTION_OPEN_DOCUMENT_TREE)
+		intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
+		intent.addFlags(Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION)
+		startActivityForResult(intent, chooseStickerDir)
+	}
+
+	/**
+	 * Delete everything from input File
+	 *
+	 * @param fileOrDirectory File to start deleting from
+	 */
+	private fun deleteRecursive(fileOrDirectory: File) {
+		if (fileOrDirectory.isDirectory) {
+			for (child in Objects.requireNonNull(fileOrDirectory.listFiles())) {
+				deleteRecursive(child)
+			}
+		}
+		fileOrDirectory.delete()
+	}
+
+	/**
+	 * Copies images from pack directory by calling importSticker() on all of them
+	 *
+	 * @param pack source pack
+	 */
+	private fun importPack(pack: DocumentFile): Int {
+		var stickersInPack = 0
+		val stickers = pack.listFiles()
+		for (sticker in stickers) {
+			stickersInPack += importSticker(sticker, pack.name + "/")
+		}
+		return stickersInPack
+	}
+
+	/**
+	 * Copies stickers from source to internal storage
+	 *
+	 * @param sticker sticker to copy over
+	 * @param pack    the pack which the sticker belongs to
+	 */
+	private fun importSticker(sticker: DocumentFile, pack: String): Int {
+		if (!canImportSticker(sticker)) {
+			return 0
+		}
+		val destSticker = File(filesDir, "stickers/" + pack + sticker.name)
+		destSticker.parentFile?.mkdirs()
+		try {
+			val inputStream = contentResolver.openInputStream(sticker.uri)
+			Files.copy(inputStream, destSticker.toPath())
+			inputStream!!.close()
+		} catch (e: IOException) {
+			e.printStackTrace()
+		}
+		return 1
+	}
+
+	/**
+	 * Import files from storage to internal directory
+	 */
+	private fun importStickers() {
+		//Use worker thread because this takes several seconds
+		val executor = Executors.newSingleThreadExecutor()
+		val handler = Handler(Looper.getMainLooper())
+		Toast.makeText(
+			applicationContext,
+			"Starting import. You will not be able to reselect directory until finished. This might take a bit!",
+			Toast.LENGTH_LONG
+		).show()
+		val button = findViewById<Button>(R.id.chooseStickerDir)
+		button.isEnabled = false
+		executor.execute {
+
+			val oldStickers = File(filesDir, "stickers")
+			deleteRecursive(oldStickers)
+			var stickersInDir = 0
+			val stickerDirPath = sharedPreferences.getString("stickerDirPath", "none set")
+			val tree = DocumentFile.fromTreeUri(applicationContext, Uri.parse(stickerDirPath))
+			val files = tree!!.listFiles()
+			for (file in files) {
+				if (file.isFile) stickersInDir += importSticker(file, "")
+				if (file.isDirectory) stickersInDir += importPack(file)
+			}
+
+			handler.post {
+				Toast.makeText(
+					applicationContext,
+					"Imported $stickersInDir stickers. You may need to reload the keyboard for new stickers to show up.",
+					Toast.LENGTH_LONG
+				).show()
+				val editor = sharedPreferences.edit()
+				editor.putInt("numStickersImported", stickersInDir)
+				editor.apply()
+				refreshStickerDirPath()
+				button.isEnabled = true
+			}
+		}
+	}
+
+	/**
+	 * Handles ACTION_OPEN_DOCUMENT_TREE result and adds the returned Uri to shared prefs
+	 *
+	 * @param requestCode Int - RequestCode as defined under the Activity private vars
+	 * @param resultCode  Int - The result code, we only want to do stuff if successful
+	 * @param data        Intent? - Extra data in the form of an intent. tend to access .data
+	 */
+	override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
+		super.onActivityResult(requestCode, resultCode, data)
+		if (requestCode == chooseStickerDir && resultCode == RESULT_OK) {
+			if (data != null) {
+				val editor = sharedPreferences.edit()
+				editor.putString("stickerDirPath", data.data.toString())
+				editor.putString("lastUpdateDate", Calendar.getInstance().time.toString())
+				editor.apply()
+				refreshStickerDirPath()
+				importStickers()
+			}
+		}
+	}
+
+	/**
+	 * Sets up content view, shared prefs, etc.
+	 *
+	 * @param savedInstanceState saved state
+	 */
+	override fun onCreate(savedInstanceState: Bundle?) {
+		super.onCreate(savedInstanceState)
+		setContentView(R.layout.activity_main)
+		sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this)
+		refreshStickerDirPath()
+		refreshKeyboardConfig()
+		val backButtonToggle = findViewById<CompoundButton>(R.id.backButtonToggle)
+		backButtonToggle.isChecked = sharedPreferences.getBoolean("showBackButton", false)
+		backButtonToggle.setOnCheckedChangeListener { _: CompoundButton?, isChecked: Boolean ->
+			showChangedPrefText()
+			val editor = sharedPreferences.edit()
+			editor.putBoolean("showBackButton", isChecked)
+			editor.apply()
+		}
+		val disableAnimations = findViewById<CompoundButton>(R.id.disableAnimations)
+		disableAnimations.isChecked = sharedPreferences.getBoolean("disable_animations", false)
+		disableAnimations.setOnCheckedChangeListener { _: CompoundButton?, isChecked: Boolean ->
+			showChangedPrefText()
+			val editor = sharedPreferences.edit()
+			editor.putBoolean("disable_animations", isChecked)
+			editor.apply()
+		}
+		val iconsPerRowSeekBar = findViewById<SeekBar>(R.id.iconsPerRowSeekBar)
+		iconsPerRowSeekBar.progress = sharedPreferences.getInt("iconsPerRow", 3)
+		iconsPerRowSeekBar.setOnSeekBarChangeListener(object : OnSeekBarChangeListener {
+			var iconsPerRow = 3
+			override fun onProgressChanged(seekBar: SeekBar, progress: Int, fromUser: Boolean) {
+				iconsPerRow = progress
+			}
+
+			override fun onStartTrackingTouch(seekBar: SeekBar) {}
+			override fun onStopTrackingTouch(seekBar: SeekBar) {
+				val editor = sharedPreferences.edit()
+				editor.putInt("iconsPerRow", iconsPerRow)
+				editor.apply()
+				refreshKeyboardConfig()
+				showChangedPrefText()
+			}
+		})
+		val iconSizeSeekBar = findViewById<SeekBar>(R.id.iconSizeSeekBar)
+		iconSizeSeekBar.progress = sharedPreferences.getInt("iconSize", 160) / 10
+		iconSizeSeekBar.setOnSeekBarChangeListener(object : OnSeekBarChangeListener {
+			var iconSize = 160
+			override fun onProgressChanged(seekBar: SeekBar, progress: Int, fromUser: Boolean) {
+				iconSize = progress * 10
+			}
+
+			override fun onStartTrackingTouch(seekBar: SeekBar) {}
+			override fun onStopTrackingTouch(seekBar: SeekBar) {
+				val editor = sharedPreferences.edit()
+				editor.putInt("iconSize", iconSize)
+				editor.apply()
+				refreshKeyboardConfig()
+				showChangedPrefText()
+			}
+		})
+	}
+
+	/**
+	 * Refreshes config from preferences
+	 */
+	fun refreshKeyboardConfig() {
+		val iconsPerRow = sharedPreferences.getInt("iconsPerRow", 3)
+		val iconsPerRowValue = findViewById<TextView>(R.id.iconsPerRowValue)
+		iconsPerRowValue.text = iconsPerRow.toString()
+		val iconSize = sharedPreferences.getInt("iconSize", 160)
+		val iconSizeValue = findViewById<TextView>(R.id.iconSizeValue)
+		iconSizeValue.text = String.format("%dpx", iconSize)
+	}
+
+	/**
+	 * Rereads saved sticker dir path from preferences
+	 */
+	private fun refreshStickerDirPath() {
+		val stickerDirPath = sharedPreferences.getString("stickerDirPath", "none set")
+		val lastUpdateDate = sharedPreferences.getString("lastUpdateDate", "never")
+		val numStickersImported = sharedPreferences.getInt("numStickersImported", 0)
+		val dirStatus = findViewById<TextView>(R.id.stickerDirStatus)
+		dirStatus.text = String.format(
+			"%s on %s with %d stickers loaded.",
+			stickerDirPath,
+			lastUpdateDate,
+			numStickersImported
+		)
+	}
+
+	/**
+	 * Reusable function to warn about changing preferences
+	 */
+	fun showChangedPrefText() {
+		Toast.makeText(
+			applicationContext,
+			"Preferences changed. You may need to reload the keyboard for settings to apply.",
+			Toast.LENGTH_LONG
+		).show()
+	}
+
+
+}
--- a/app/src/main/java/com/fredhappyface/whoosticker/StickerPack.kt
+++ b/app/src/main/java/com/fredhappyface/whoosticker/StickerPack.kt
@ -0,0 +1,32 @@
+package com.fredhappyface.whoosticker
+
+import java.io.File
+
+/**
+ * Helper class to provide pack-related information
+ * A "Pack" is informally represented as a File
+ */
+class StickerPack(packDir: File) {
+	private val stickers: Array<File>? =
+		packDir.listFiles { obj: File -> obj.isFile }?.sortedArray()
+
+	/**
+	 * Note: When MainActivity copies files over, it filters out all non-supported files (i.e. any
+	 * file that is not supported as well as directories). Because of this there is no extra filter
+	 * in this function. The exception is the base directory, which is handled in the constructor.
+	 *
+	 * @return Array of Files corresponding to all stickers found in this pack
+	 */
+	val stickerList: Array<File>
+		get() = stickers!!
+
+	/**
+	 * Provides a sticker to use as the pack-nav container thumbnail.
+	 * Currently just takes the first element, but could theoretically include any selection logic.
+	 *
+	 * @return File that should be used for thumbnail
+	 */
+	val thumbSticker: File
+		get() = stickers!![0]
+
+}
--- a/app/src/main/java/com/fredhappyface/whoosticker/Utils.kt
+++ b/app/src/main/java/com/fredhappyface/whoosticker/Utils.kt
@ -0,0 +1,35 @@
+package com.fredhappyface.whoosticker
+
+/**
+ * Class to provide utils that are shared across whoosticker.
+ */
+object Utils {
+	/**
+	 * @param name the File's name. Takes in a string here instead of a File because in certain
+	 * places we have to use DocumentFile instead-- String name can be found by calling
+	 * .getName() on both, but they are different classes.
+	 * @return returns "." inclusive file extension.
+	 */
+	fun getFileExtension(name: String): String {
+		val lastIndexOf = name.lastIndexOf(".")
+		return if (lastIndexOf == -1) {
+			""
+		} else name.substring(lastIndexOf)
+	}
+
+	/**
+	 * Needs to create a new HashMap on every call because shallow copies will cause issues between
+	 * different input areas that support different media types.
+	 *
+	 * @return HashMap of whoosticker-supported mimes. Keys are "." inclusive.
+	 */
+	fun getSupportedMimes(): MutableMap<String, String> {
+		return mutableMapOf(
+			".gif" to "image/gif",
+			".png" to "image/png",
+			".apng" to "image/png",
+			".jpg" to "image/jpg",
+			".webp" to "image/webp"
+		)
+	}
+}
--- a/app/src/main/res/drawable/ic_launcher_background.xml
+++ b/app/src/main/res/drawable/ic_launcher_background.xml
@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector
+    android:height="108dp"
+    android:width="108dp"
+    android:viewportHeight="108"
+    android:viewportWidth="108"
+    xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="#3DDC84"
+          android:pathData="M0,0h108v108h-108z"/>
+    <path android:fillColor="#00000000" android:pathData="M9,0L9,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M19,0L19,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M29,0L29,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M39,0L39,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M49,0L49,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M59,0L59,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M69,0L69,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M79,0L79,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M89,0L89,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M99,0L99,108"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,9L108,9"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,19L108,19"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,29L108,29"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,39L108,39"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,49L108,49"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,59L108,59"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,69L108,69"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,79L108,79"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,89L108,89"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M0,99L108,99"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M19,29L89,29"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M19,39L89,39"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M19,49L89,49"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M19,59L89,59"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M19,69L89,69"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M19,79L89,79"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M29,19L29,89"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M39,19L39,89"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M49,19L49,89"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M59,19L59,89"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M69,19L69,89"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+    <path android:fillColor="#00000000" android:pathData="M79,19L79,89"
+          android:strokeColor="#33FFFFFF" android:strokeWidth="0.8"/>
+</vector>
--- a/app/src/main/res/drawable/ic_launcher_foreground.xml
+++ b/app/src/main/res/drawable/ic_launcher_foreground.xml
@ -0,0 +1,31 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:startY="49.59793"
+                android:startX="42.9492"
+                android:endY="92.4963"
+                android:endX="85.84757"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000"/>
+</vector>
--- a/app/src/main/res/drawable/tabler_icon_arrow_back_white.png
+++ b/app/src/main/res/drawable/tabler_icon_arrow_back_white.png
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@ -0,0 +1,118 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    android:paddingLeft="16dp"
+    android:paddingRight="16dp">
+
+    <TextView
+        style="@style/widget"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/current_info" />
+
+    <TextView
+        android:id="@+id/stickerDirStatus"
+        style="@style/widget"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="" />
+
+    <Button
+        android:id="@+id/chooseStickerDir"
+        style="@style/widget"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:onClick="chooseDir"
+        android:text="@string/choose_dir" />
+
+    <View
+        style="@style/widget"
+        android:layout_width="match_parent"
+        android:layout_height="1dp"
+        android:background="?android:attr/listDivider" />
+
+    <androidx.appcompat.widget.AppCompatCheckBox
+        android:id="@+id/backButtonToggle"
+        style="@style/widget"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/show_back_button" />
+
+    <androidx.appcompat.widget.AppCompatCheckBox
+        android:id="@+id/disableAnimations"
+        style="@style/widget"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/disable_animations" />
+
+    <LinearLayout
+        style="@style/widget"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal">
+
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/icons_per_row_status" />
+
+        <TextView
+            android:id="@+id/iconsPerRowValue"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content" />
+
+        <SeekBar
+            android:id="@+id/iconsPerRowSeekBar"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:max="10"
+            android:min="1"
+            android:progress="4" />
+
+    </LinearLayout>
+
+    <LinearLayout
+        style="@style/widget"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal">
+
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/icon_size_status" />
+
+        <TextView
+            android:id="@+id/iconSizeValue"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content" />
+
+        <SeekBar
+            android:id="@+id/iconSizeSeekBar"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:max="32"
+            android:min="8"
+            android:progress="16" />
+
+    </LinearLayout>
+
+    <View
+        style="@style/widget"
+        android:layout_width="match_parent"
+        android:layout_height="1dp"
+        android:background="?android:attr/listDivider" />
+
+    <TextView
+        style="@style/widget"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:autoLink="web"
+        android:linksClickable="true"
+        android:text="@string/github" />
+
+
+</LinearLayout>
+
--- a/app/src/main/res/layout/image_container_column.xml
+++ b/app/src/main/res/layout/image_container_column.xml
@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:background="@android:color/transparent"
+    android:orientation="vertical"
+    />
+
--- a/app/src/main/res/layout/keyboard_layout.xml
+++ b/app/src/main/res/layout/keyboard_layout.xml
@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:background="@color/bg"
+    tools:context="com.fredhappyface.whoosticker.ImageKeyboard">
+
+    <HorizontalScrollView
+        android:id="@+id/topHScrollView"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_alignParentTop="true"
+        android:background="@color/sticker">
+
+        <LinearLayout
+            android:id="@+id/packContainer"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal" />
+    </HorizontalScrollView>
+
+    <HorizontalScrollView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_below="@id/topHScrollView">
+
+        <LinearLayout
+            android:id="@+id/imageContainer"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal" />
+    </HorizontalScrollView>
+</RelativeLayout>
--- a/app/src/main/res/layout/pack_card.xml
+++ b/app/src/main/res/layout/pack_card.xml
@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    app:cardCornerRadius="0dp"
+    app:cardUseCompatPadding="true"
+    android:layout_margin="4dp"
+    android:layout_marginHorizontal="8dp"
+    >
+
+    <ImageButton
+        android:id="@+id/ib3"
+        android:layout_width="40dp"
+        android:layout_height="40dp"
+        android:background="@color/sticker"
+        android:cropToPadding="true"
+        android:scaleType="fitCenter"
+        android:contentDescription="@string/pack_icon" />
+
+</FrameLayout>
--- a/app/src/main/res/layout/sticker_card.xml
+++ b/app/src/main/res/layout/sticker_card.xml
@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.cardview.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    app:cardCornerRadius="8dp"
+    app:cardUseCompatPadding="true"
+    >
+
+    <ImageButton
+        android:id="@+id/ib3"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignParentStart="true"
+        android:layout_alignParentBottom="true"
+        android:background="@color/sticker"
+        android:cropToPadding="true"
+        android:scaleType="fitCenter"
+        android:contentDescription="@string/sticker_icon" />
+
+</androidx.cardview.widget.CardView>
--- a/app/src/main/res/mipmap-anydpi
+++ b/app/src/main/res/mipmap-anydpi
--- a/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
+++ b/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background"/>
+    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
+</adaptive-icon>
--- a/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
+++ b/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background"/>
+    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
+</adaptive-icon>
--- a/app/src/main/res/mipmap-hdpi/ic_launcher.png
+++ b/app/src/main/res/mipmap-hdpi/ic_launcher.png
--- a/app/src/main/res/mipmap-hdpi/ic_launcher_round.png
+++ b/app/src/main/res/mipmap-hdpi/ic_launcher_round.png
--- a/app/src/main/res/mipmap-mdpi/ic_launcher.png
+++ b/app/src/main/res/mipmap-mdpi/ic_launcher.png
--- a/app/src/main/res/mipmap-mdpi/ic_launcher_round.png
+++ b/app/src/main/res/mipmap-mdpi/ic_launcher_round.png
--- a/app/src/main/res/mipmap-xhdpi/ic_launcher.png
+++ b/app/src/main/res/mipmap-xhdpi/ic_launcher.png
--- a/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png
+++ b/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png
--- a/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
+++ b/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
--- a/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
+++ b/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
--- a/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
+++ b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
--- a/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
+++ b/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
--- a/app/src/main/res/values-night/themes.xml
+++ b/app/src/main/res/values-night/themes.xml
@ -0,0 +1,6 @@
+<resources>
+    <!-- Base application theme. -->
+    <color name="bg">#212121</color>
+    <color name="fg">#e0e0e0</color>
+    <color name="sticker">#323232</color>
+</resources>
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="accent">#00796B</color>
+    <color name="accentDark">#00695C</color>
+    <color name="onAccent">#e0e0e0</color>
+</resources>
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@ -0,0 +1,14 @@
+<resources>
+    <string name="app_name">WhooSticker</string>
+    <string name="github">This is an early version of WhooSticker available at https://github.com/FredHappyface/Android.WhooSticker
+
+        Checkout woosticker (upstream) on GitHub: https://github.com/rzhou1999/woosticker</string>
+    <string name="choose_dir">Choose a new sticker source directory</string>
+    <string name="current_info">Current loaded sticker information: </string>
+    <string name="show_back_button">Show back button in navbar?</string>
+    <string name="disable_animations">Disable Animations?</string>
+    <string name="icons_per_row_status">Icons per row: </string>
+    <string name="icon_size_status">Icon size: </string>
+    <string name="pack_icon">Pack icon</string>
+    <string name="sticker_icon">Sticker icon</string>
+</resources>
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@ -0,0 +1,44 @@
+<resources>
+
+    <!-- Base application theme. -->
+
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+        <!-- Primary brand color. -->
+        <item name="colorPrimaryVariant">@color/accent</item>
+        <item name="colorOnPrimary">@color/onAccent</item>
+        <!-- Customize your theme here. -->
+        <item name="android:navigationBarColor">@color/accentDark</item>
+        <item name="colorPrimaryDark">@color/accentDark</item>
+        <item name="colorPrimary">@color/accent</item>
+        <item name="colorAccent">@color/accent</item>
+        <item name="android:textColorPrimary">@color/fg</item>
+        <item name="android:textColorSecondary">@color/fg</item>
+        <item name="android:textColor">@color/fg</item>
+        <item name="android:windowBackground">@color/bg</item>
+        <item name="actionOverflowButtonStyle">@style/OverflowButtonStyle</item>
+        <item name="actionBarStyle">@style/AppBarBackground</item>
+        <item name="actionBarTheme">@style/AppBarText</item>
+    </style>
+
+    <style name="OverflowButtonStyle" parent="Widget.AppCompat.ActionButton.Overflow">
+        <item name="android:tint">@color/onAccent</item>
+    </style>
+
+    <style name="AppBarBackground" parent="Widget.MaterialComponents.ActionBar.Solid">
+        <item name="android:background">@color/accent</item>
+    </style>
+
+    <style name="AppBarText" parent="ThemeOverlay.MaterialComponents.ActionBar.Surface">
+        <item name="android:textColorPrimary">@color/onAccent</item>
+    </style>
+
+
+
+
+    <style name="widget">
+        <item name="android:padding">8dp</item>
+    </style>
+
+</resources>
--- a/app/src/main/res/values/themes.xml
+++ b/app/src/main/res/values/themes.xml
@ -0,0 +1,6 @@
+<resources>
+    <!-- Base application theme. -->
+    <color name="bg">#fafafa</color>
+    <color name="fg">#424242</color>
+    <color name="sticker">#e0e0e0</color>
+</resources>
--- a/app/src/main/res/xml/file_paths.xml
+++ b/app/src/main/res/xml/file_paths.xml
@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<paths>
+    <files-path name="added_stickers" path="stickers/"/>
+</paths>
--- a/app/src/main/res/xml/method.xml
+++ b/app/src/main/res/xml/method.xml
@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8"?>
+<input-method />
--- a/app/src/test/java/com/fredhappyface/whoosticker/ExampleUnitTest.kt
+++ b/app/src/test/java/com/fredhappyface/whoosticker/ExampleUnitTest.kt
@ -0,0 +1,17 @@
+package com.fredhappyface.whoosticker
+
+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)
+	}
+}
--- a/build.gradle
+++ b/build.gradle
@ -0,0 +1,26 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+buildscript {
+    ext.kotlin_version = "1.5.10"
+    repositories {
+        google()
+        mavenCentral()
+    }
+    dependencies {
+        classpath "com.android.tools.build:gradle:4.2.1"
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}
--- a/gradle.properties
+++ b/gradle.properties
@ -0,0 +1,19 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
+# AndroidX package structure to make it clearer which packages are bundled with the
+# Android operating system, and which are packaged with your app"s APK
+# https://developer.android.com/topic/libraries/support-library/androidx-rn
+android.useAndroidX=true
+# Kotlin code style for this project: "official" or "obsolete":
+kotlin.code.style=official
--- a/gradle/wrapper/gradle-wrapper.jar
+++ b/gradle/wrapper/gradle-wrapper.jar
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@ -0,0 +1,6 @@
+#Fri Jun 11 17:07:37 BST 2021
+distributionBase=GRADLE_USER_HOME
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.7.1-bin.zip
+distributionPath=wrapper/dists
+zipStorePath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
--- a/172
+++ b/172
@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"
--- a/gradlew.bat
+++ b/gradlew.bat
@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
--- a/settings.gradle
+++ b/settings.gradle
@ -0,0 +1,2 @@
+rootProject.name = "WhooSticker"
+include ':app'