Added feature to delete a song. Now working on downloading the song in the background

app/build.gradle

@@ -18,7 +18,7 @@ android {
         targetSdkVersion 28
         versionCode 1
         versionName "1.0"
-        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         externalNativeBuild {
             cmake {
                 arguments "-DANDROID_STL=c++_shared", "-DANDROID=true"
@@ -47,23 +47,41 @@ android {
 }
 
 dependencies {
+    def work_version = "2.2.0"
+
     implementation fileTree(dir: 'libs', include: ['*.jar'])
-    implementation 'org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.3.61'
+    // Kotlin + coroutines
-    implementation 'com.android.support:appcompat-v7:28.0.0'
+    implementation "androidx.work:work-runtime-ktx:$work_version"
-    implementation 'com.android.support:support-v4:28.0.0'
+    implementation 'androidx.appcompat:appcompat:1.0.0'
-    implementation 'com.android.support:design:28.0.0'
+    implementation 'androidx.cardview:cardview:1.0.0'
-    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
+    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
-    implementation "org.jetbrains.anko:anko:0.10.8"
+    implementation 'com.google.android.material:material:1.0.0'
+    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
     implementation 'com.ealva:ealvatag:0.4.3'
     implementation 'com.ealva:ealvalog:0.5.0'
     implementation 'com.ealva:ealvalog-core:0.5.0'
     implementation 'com.ealva:ealvalog-android:0.5.0'
-    implementation 'com.google.guava:guava:23.0'
-    implementation 'com.squareup.okio:okio:2.4.0'
-    testImplementation 'junit:junit:4.12'
-    androidTestImplementation 'com.android.support.test:runner:1.0.2'
-    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
-    implementation 'com.android.support:cardview-v7:28.0.0'
-    implementation 'com.squareup.picasso:picasso:2.71828'
     implementation 'com.github.XuDeveloper:XPopupWindow:1.0.1'
+    // implementation 'com.google.guava:guava:27.0'
+    implementation 'com.google.guava:guava:27.0.1-android'
+    implementation 'com.squareup.okio:okio:2.4.0'
+    implementation 'com.squareup.picasso:picasso:2.71828'
+    implementation "org.jetbrains.anko:anko:0.10.8"
+    implementation 'org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.3.61'
+
+
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.0'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
+    testImplementation 'junit:junit:4.12'
+}
+
+configurations.all {
+    resolutionStrategy.eachDependency { DependencyResolveDetails details ->
+        def requested = details.requested
+        if (requested.group == 'com.android.support') {
+            if (!requested.name.startsWith("multidex")) {
+                details.useVersion '27.0.0'
+            }
+        }
+    }
 }

app/src/androidTest/java/com/example/mear/ExampleInstrumentedTest.kt

@@ -1,7 +1,7 @@
 package com.example.mear
 
-import android.support.test.InstrumentationRegistry
+import androidx.test.platform.app.InstrumentationRegistry
-import android.support.test.runner.AndroidJUnit4
+import androidx.test.ext.junit.runners.AndroidJUnit4
 
 import org.junit.Test
 import org.junit.runner.RunWith

app/src/main/AndroidManifest.xml

@@ -1,5 +1,6 @@
 <?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.mear">
 
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

app/src/main/cpp/Demo.hpp

@@ -175,6 +175,24 @@ int retrieveShuffleMode(const std::string& path) {
 }
 
 
+template<class Song = model::Song, typename Str = std::string, typename B = bool>
+B deleteSong(Song& song, const Str& path) {
+    manager::DirectoryManager dirMgr;
+    if (!dirMgr.doesSongExist(song, path)) {
+        return false;
+    }
+
+    auto result = dirMgr.deleteSong(song, path);
+    if (!result) {
+        return result;
+    }
+
+    repository::local::SongRepository songRepo(path);
+    songRepo.deleteSongFromTable(song, path);
+
+    return result;
+}
+
 bool doesDatabaseExist(const std::string& dataPath) {
     repository::local::UserRepository userRepo;
     const auto result = userRepo.databaseExist(dataPath);
@@ -286,6 +304,7 @@ void downloadSong(Song& song, const Token& token, const Str& path) {
     saveSong.close();
 
     song.path = downloadedSong.path;
+    song.downloaded = true;
     repository::local::SongRepository localSongRepo(path);
     localSongRepo.saveSong(downloadedSong, path);
 }
@@ -703,6 +722,24 @@ Java_com_example_mear_repositories_TokenRepository_isTokenTableEmpty(
     return doesTokenExist(dataPath);
 }
 
+extern "C"
+JNIEXPORT jboolean
+JNICALL
+Java_com_example_mear_repositories_TrackRepository_deleteSong(
+        JNIEnv *env,
+        jobject thisObj,
+        jobject songObj,
+        jstring pathStr
+) {
+    auto songClass = env->GetObjectClass(songObj);
+    auto path = env->GetStringUTFChars(pathStr, nullptr);
+    auto song = ObjToSong(env, songObj);
+
+    const auto result = deleteSong(song, path);
+
+    return result;
+}
+
 extern "C"
 JNIEXPORT jboolean
 JNICALL

app/src/main/cpp/manager/DirectoryManager.h

@@ -22,7 +22,7 @@ namespace manager {
     public:
         template<typename Str = std::string>
         std::string fullSongPath(const Song& song, const Str& path) {
-            std::string s = utility::GeneralUtility::appendForwardSlashToUri<std::string>(path);
+            std::string s = rootMusicDirectory(path);
             s.append(song.albumArtist);
             s.append("/");
             s.append(song.album);
@@ -51,7 +51,7 @@ namespace manager {
 
         template<typename Str = std::string>
         Str albumPath(const Song& song, const Str& path) {
-            std::string s = utility::GeneralUtility::appendForwardSlashToUri<std::string>(path);
+            auto s = rootMusicDirectory<std::string>(path);
             s.append(song.albumArtist);
             s.append("/");
             s.append(song.album);
@@ -76,7 +76,7 @@ namespace manager {
 
         template<typename Str = std::string>
         Str artistPath(const Song& song, const Str& path) {
-            Str s = utility::GeneralUtility::appendForwardSlashToUri<std::string>(path);
+            Str s = rootMusicDirectory(path);
             s.append(song.albumArtist);
 
             return s.c_str();
@@ -101,6 +101,10 @@ namespace manager {
 
         template<typename Str = std::string>
         void createSongDirectory(const Song& song, const Str& path) {
+            if (!rootMusicDirectoryExists<std::string>(path)) {
+                const std::string p(rootMusicDirectory<std::string>(path));
+                auto status = mkdir(p.c_str(), 0777);
+            }
             if (!artistDirectoryExists(song, path)) {
                 auto status = mkdir(artistPath<std::string>(song, path).c_str(), 0777);
             }
@@ -112,14 +116,20 @@ namespace manager {
             }
         }
 
-        template<typename Str = std::string>
-        void deleteSongDirectory(const Song& song, const Str& path) {
-
-        }
     private:
+        template<typename Str = std::string>
+        static auto rootMusicDirectory(const Str& path) {
+            auto rootPath = utility::GeneralUtility::appendForwardSlashToUri<std::string>(path);
+            rootPath.append("music/");
+
+            return rootPath;
+        }
+
+
         template<typename Str = std::string, typename B = bool>
         B albumDirectoryExists(const Song song, const Str& path) {
-            auto albumPath = utility::GeneralUtility::appendForwardSlashToUri<std::string>(path);
+            // auto albumPath = utility::GeneralUtility::appendForwardSlashToUri<std::string>(path);
+            auto albumPath = rootMusicDirectory<std::string>(path);
             albumPath.append(song.albumArtist);
             albumPath.append("/");
             albumPath.append(song.album);
@@ -159,8 +169,9 @@ namespace manager {
         }
 
         template<typename Str = std::string, typename B = bool>
-        B artistDirectoryExists(const Song song, const Str& path) {
+        B artistDirectoryExists(const Song& song, const Str& path) {
-            auto artistPath = utility::GeneralUtility::appendForwardSlashToUri<std::string>(path);
+            // auto artistPath = utility::GeneralUtility::appendForwardSlashToUri<std::string>(path);
+            auto artistPath = rootMusicDirectory<std::string>(path);
             artistPath.append(song.albumArtist);
             DIR* dir = opendir(artistPath.c_str());
 
@@ -173,6 +184,21 @@ namespace manager {
 
             return true;
         }
+
+        template<typename Str = std::string, typename B = bool>
+        B rootMusicDirectoryExists(const Str& path) {
+            auto rootPath = rootMusicDirectory<std::string>(path);
+            DIR *dir = opendir(rootPath.c_str());
+
+            if (dir) {
+                closedir(dir);
+                return true;
+            } else if (ENOENT == errno) {
+                return false;
+            }
+
+            return true;
+        }
     };
 }
 

app/src/main/java/com/example/mear/AppCompatPreferenceActivity.kt

@@ -3,10 +3,10 @@ package com.example.mear
 import android.content.res.Configuration
 import android.os.Bundle
 import android.preference.PreferenceActivity
-import android.support.annotation.LayoutRes
+import androidx.annotation.LayoutRes
-import android.support.v7.app.ActionBar
+import androidx.appcompat.app.ActionBar
-import android.support.v7.app.AppCompatDelegate
+import androidx.appcompat.app.AppCompatDelegate
-import android.support.v7.widget.Toolbar
+import androidx.appcompat.widget.Toolbar
 import android.view.MenuInflater
 import android.view.View
 import android.view.ViewGroup

app/src/main/java/com/example/mear/activities/BaseServiceActivity.kt

@@ -8,7 +8,7 @@ import android.content.ServiceConnection
 import android.os.Bundle
 import android.os.Environment
 import android.os.IBinder
-import android.support.v7.app.AppCompatActivity
+import androidx.appcompat.app.AppCompatActivity
 import android.widget.Toast
 import com.example.mear.R
 

app/src/main/java/com/example/mear/activities/IcarusSongActivity.kt

@@ -1,8 +1,8 @@
 package com.example.mear.activities
 
 import android.os.Bundle
-import android.support.v7.widget.LinearLayoutManager
+import androidx.recyclerview.widget.LinearLayoutManager
-import android.support.v7.widget.SearchView
+import androidx.appcompat.widget.SearchView
 
 import kotlinx.android.synthetic.main.content_song_view.*
 
@@ -48,7 +48,8 @@ class IcarusSongActivity : BaseServiceActivity() {
 
     private fun initializeAdapter() {
         try {
-            linearLayoutManager = LinearLayoutManager(this)
+            linearLayoutManager =
+                LinearLayoutManager(this)
             trackList.layoutManager = linearLayoutManager
 
             val pa = appDirectory()
@@ -57,7 +58,8 @@ class IcarusSongActivity : BaseServiceActivity() {
             val apiRepo = APIRepository()
             val token = tokenRepo.retrieveToken(pa)
             val apiInfo = apiRepo.retrieveRecord(pa)
-            val fetchedSongs = trackRepo.fetchSongsIncludingDownloaded(token, apiInfo.uri, pa).toCollection(ArrayList())
+            val fetchedSongs = trackRepo.fetchSongsIncludingDownloaded(token, apiInfo.uri, pa)
+                .toCollection(ArrayList())
             songs = fetchedSongs
 
             songs!!.sortedWith(compareBy{it.title})

app/src/main/java/com/example/mear/activities/LoginActivity.kt

@@ -5,7 +5,7 @@ import kotlinx.android.synthetic.main.content_login.*
 
 import android.content.Intent
 import android.os.Bundle
-import android.support.design.widget.Snackbar
+import com.google.android.material.snackbar.Snackbar
 import org.jetbrains.anko.toast
 
 import com.example.mear.models.*

app/src/main/java/com/example/mear/activities/MainActivity.kt

@@ -18,12 +18,19 @@ import android.content.pm.PackageManager
 import android.graphics.Color
 import android.os.Bundle
 import android.os.Handler
-import android.support.v4.app.ActivityCompat
+import androidx.core.app.ActivityCompat
-import android.support.v4.content.ContextCompat
+import androidx.core.content.ContextCompat
 import android.view.MenuItem
 import android.view.View
 import android.widget.PopupMenu
 import android.widget.Toast
+/**
+import androidx.work.Data
+import androidx.work.NetworkType
+import androidx.work.OneTimeWorkRequest
+import androidx.work.WorkManager
+*/
+import org.jetbrains.anko.image
 import org.jetbrains.anko.imageBitmap
 
 import com.example.mear.listeners.TrackElaspingChange
@@ -32,7 +39,7 @@ import com.example.mear.repositories.*
 import com.example.mear.repositories.RepeatRepository.RepeatTypes
 import com.example.mear.repositories.ShuffleRepository.ShuffleTypes
 import com.example.mear.util.ConvertByteArray
-import org.jetbrains.anko.image
+// import com.example.mear.workers.IcarusSyncManager
 
 
 class MainActivity : BaseServiceActivity() {
@@ -51,6 +58,18 @@ class MainActivity : BaseServiceActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         try {
+            /**
+            val workManager = WorkManager.getInstance()
+
+            val constraints = androidx.work.Constraints.Builder()
+                .setRequiredNetworkType(NetworkType.CONNECTED).build()
+
+            val task = OneTimeWorkRequest.Builder(IcarusSyncManager::class.java)
+                .setConstraints(constraints).build()
+            workManager.enqueue(task)
+            */
+
+
             setContentView(R.layout.activity_main)
             setSupportActionBar(toolbar)
 
@@ -377,7 +396,12 @@ class MainActivity : BaseServiceActivity() {
                         val trackRepo = TrackRepository()
                         // The method I am calling has not been implemented on the C++
                         // side
-                        trackRepo.delete(musicService!!.getCurrentSong(), appPath)
+                        var currSong = musicService!!.getCurrentSong()
+                        Toast.makeText(this, "Deleting song", Toast.LENGTH_SHORT).show()
+                        val result = trackRepo.delete(currSong, appPath)
+                        if (result) {
+                            musicService!!.removeSongDownloadStatus(currSong)
+                        }
                     }
                     R.id.action_song_download -> {
                         val appPath = appDirectory()
@@ -387,19 +411,43 @@ class MainActivity : BaseServiceActivity() {
                         var song = musicService!!.getCurrentSong()
 
                         val token = tokenRepo.retrieveToken(appPath)
-                        val apiInfo = apiRepo.retrieveRecord(appPath)
+                        // val apiInfo = apiRepo.retrieveRecord(appPath)
-                        song = trackRepo.download(token, song, appPath)
+                        // song = trackRepo.download(token, song, appPath)
-                        musicService!!.changeSongDownloadStatus()
+                        // musicService!!.changeSongDownloadStatus(song)
                         // TODO: implement something to include the downloaded song into the songQueue
                         // essentially replacing the song that already exists, that way one can
                         // actually access the file without having to restart the app
+                        Toast.makeText(this, "Downloading song", Toast.LENGTH_SHORT).show()
+
+                        // val dMgr = IcarusSyncManager
+                        musicService!!.downloadSong(token, song, appPath)
+
+
+                        //val workManager = WorkManager.getInstance()
+                        /**
+                        val constraints = androidx.work.Constraints.Builder()
+                            .setRequiredNetworkType(NetworkType.CONNECTED).build()
+
+                        val task = OneTimeWorkRequest.Builder(IcarusSyncManager::class.java)
+                            .setConstraints(constraints)
+                        val data = Data.Builder()
+                        data.putString("accessToken", token.accessToken)
+                        data.putString("appPath", appPath)
+                        data.putInt("songId", song.id)
+                        task.setInputData(data.build())
+                        */
+                        //workManager.enqueue(task)
+                        //WorkManager.getInstance().enqueue(task.build())
                     }
+                    /**
                     R.id.action_song_play_count-> {
+                        // TODO: not implemented
                         val trk = musicService!!.getCurrentSong()
-                        val pc = PlayCountRepository(this).getPlayCount(trk.id)
+                        // val pc = PlayCountRepository(this).getPlayCount(trk.id)
-                        val playCount = pc.playCount
+                        // val playCount = pc.playCount
                         Toast.makeText(this, "Song played $playCount times", Toast.LENGTH_LONG).show()
                     }
+                    */
                 }
                 true
             }

app/src/main/java/com/example/mear/activities/SettingsActivity.kt

@@ -2,9 +2,7 @@ package com.example.mear.activities
 
 import android.content.Context
 import android.os.Bundle
-import android.os.Environment
+import androidx.appcompat.app.AppCompatActivity;
-import android.support.v7.app.AppCompatActivity;
-import android.support.v7.widget.CardView
 import android.view.View
 import android.widget.LinearLayout
 import android.widget.Toast
@@ -13,11 +11,8 @@ import java.lang.Exception
 import kotlinx.android.synthetic.main.activity_settings.*
 import kotlinx.android.synthetic.main.content_settings.*
 
-import com.example.mear.adapters.SettingsAdapter
 import com.example.mear.R
-import com.example.mear.management.MusicFiles
 import com.example.mear.ui.popups.AboutPopup
-import com.example.mear.repositories.TrackRepository
 import kotlinx.android.synthetic.main.popup_layout.*
 
 
@@ -47,16 +42,6 @@ class SettingsActivity : AppCompatActivity() {
         window.statusBarColor = resources.getColor(R.color.track_seek)
     }
 
-    private fun loadSongPaths(): MutableList<String> {
-        val demoPath = Environment.getExternalStorageDirectory()
-        val mfPaths =  MusicFiles(demoPath)
-        mfPaths.loadAllMusicPaths()
-        val allSongs = mfPaths.allSongs
-
-        return allSongs!!
-    }
-
-
 
     class AboutListener(var layout: LinearLayout?, val ctx: Context): View.OnClickListener {
         override fun onClick(v: View?) {

app/src/main/java/com/example/mear/adapters/RecyclerAdapter.kt

@@ -1,7 +1,7 @@
 package com.example.mear.adapters
 
 import android.app.Activity
-import android.support.v7.widget.RecyclerView
+import androidx.recyclerview.widget.RecyclerView
 import android.view.View
 import android.view.ViewGroup
 import android.widget.Filter

app/src/main/java/com/example/mear/adapters/SettingsAdapter.kt

@@ -1,6 +1,6 @@
 package com.example.mear.adapters
 
-import android.support.v7.widget.RecyclerView
+import androidx.recyclerview.widget.RecyclerView
 import android.view.View
 import android.view.ViewGroup
 

app/src/main/java/com/example/mear/adapters/SongAdapter.kt

@@ -3,7 +3,7 @@ package com.example.mear.adapters
 import java.lang.Exception
 import kotlinx.android.synthetic.main.fragment_song_view.view.*
 
-import android.support.v7.widget.RecyclerView
+import androidx.recyclerview.widget.RecyclerView
 import android.view.View
 import android.view.ViewGroup
 import android.widget.Filter

app/src/main/java/com/example/mear/extensions.kt

@@ -1,16 +1,11 @@
 package com.example.mear
 
-import android.content.Context
+import androidx.annotation.LayoutRes
-import android.support.annotation.LayoutRes
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 
-import com.example.mear.management.DatabaseManager
-
-val Context.database:  DatabaseManager
-    get() = DatabaseManager.getInstance(applicationContext)
 
 fun ViewGroup.inflate(@LayoutRes layoutRes: Int, attachToRoot: Boolean = false): View {
     return LayoutInflater.from(context).inflate(layoutRes, this, attachToRoot)
-}
+}

app/src/main/java/com/example/mear/holders/SettingItemsHolder.kt

@@ -1,6 +1,6 @@
 package com.example.mear.holders
 
-import android.support.v7.widget.RecyclerView
+import androidx.recyclerview.widget.RecyclerView
 import android.view.View
 
 import com.example.mear.models.SettingItems

app/src/main/java/com/example/mear/management/DatabaseManager.kt

@@ -1,93 +0,0 @@
-package com.example.mear.management
-
-import android.content.Context
-import android.database.sqlite.SQLiteDatabase
-import com.example.mear.constants.ControlTypes
-
-import java.lang.Exception
-
-import org.jetbrains.anko.db.*
-import org.jetbrains.anko.db.ManagedSQLiteOpenHelper
-
-import com.example.mear.models.PlayControls
-import com.example.mear.repositories.ShuffleRepository
-
-class DatabaseManager(ctx: Context): ManagedSQLiteOpenHelper(ctx, "Mear",
-    null, 1) {
-    companion object {
-        private var instance: DatabaseManager? = null
-
-        @Synchronized
-        fun getInstance(ctx: Context): DatabaseManager {
-            if (instance == null) {
-                instance = DatabaseManager(ctx.applicationContext)
-            }
-            return instance!!
-        }
-    }
-
-
-    override fun onCreate(db: SQLiteDatabase?) {
-        try {
-            db!!.createTable(
-                "Track", true,
-                "Id" to INTEGER + PRIMARY_KEY + UNIQUE,
-                "Title" to TEXT, "Album" to TEXT, "Artist" to TEXT,
-                "Duration" to INTEGER, "FilePath" to TEXT
-            )
-            db!!.createTable(
-                "TrackCount", true,
-                "Id" to INTEGER + PRIMARY_KEY + UNIQUE,
-                "TotalSongs" to INTEGER
-            )
-            db!!.createTable(
-                "PlayCount", true,
-                "Id" to INTEGER + PRIMARY_KEY + AUTOINCREMENT,
-                "PlayCount" to INTEGER,
-                "TrackId" to INTEGER
-            )
-            db!!.createTable(
-                "Settings", true,
-                "Id" to INTEGER + PRIMARY_KEY + UNIQUE,
-                "DarkTheme" to org.jetbrains.anko.db.REAL
-            )
-            db!!.createTable(
-                "Shuffle", true,
-                "Id" to INTEGER + PRIMARY_KEY + UNIQUE,
-                "Mode" to TEXT
-            )
-            db!!.createTable(
-                "Repeat", true,
-                "Id" to INTEGER + PRIMARY_KEY + UNIQUE,
-                "Mode" to TEXT)
-        }
-        catch (ex: Exception) {
-        }
-        initializeShuffle(db)
-        initializeRepeat(db)
-    }
-
-    override fun onUpgrade(db: SQLiteDatabase?, oldVersion: Int, newVersion: Int) {
-        try {
-            db!!.dropTable("Track")
-            db!!.dropTable("TrackCount")
-            db!!.dropTable("PlayCount")
-            db!!.dropTable("Settings")
-            db!!.dropTable("Shuffle")
-            db!!.dropTable("Repeat")
-        }
-        catch (ex: Exception) {
-        }
-    }
-
-
-    private fun initializeShuffle(db: SQLiteDatabase?) {
-        db!!.insert("Shuffle",
-            "Mode" to ControlTypes.SHUFFLE_OFF)
-    }
-    private fun initializeRepeat(db: SQLiteDatabase?) {
-        db!!.insert("Repeat",
-            "Mode" to ControlTypes.REPEAT_OFF)
-    }
-}
-

app/src/main/java/com/example/mear/management/MusicFiles.kt

@@ -1,123 +0,0 @@
-package com.example.mear.management
-
-import android.os.Environment
-import com.example.mear.R
-import java.io.File
-import java.lang.Exception
-
-import com.example.mear.constants.DirectoryIgnore
-import com.example.mear.constants.FileTypes
-import com.example.mear.constants.SongSearch
-
-class MusicFiles (private val demoPath:  File) {
-
-    var allSongs: MutableList<String>?= null
-
-    private val musicSongLimit = Int.MAX_VALUE
-
-
-    fun loadAllMusicPaths() {
-        try {
-            allSongs = mutableListOf()
-            val demoPath = this.demoPath.absoluteFile.toString() + "/music/"
-            val f = File(demoPath)
-            var count = 0
-
-            val folder = f
-            val listOfFiles = folder.listFiles()
-
-            for (i in listOfFiles) {
-                for (j in i.listFiles()) {
-                    if (j.absolutePath.toString().contains("zip")) {
-                    }
-                    for (k in j.listFiles()) {
-                        if (k.absolutePath.toString().contains("mp3")) {
-                            if (count < musicSongLimit) {
-                                allSongs!!.add(k.absolutePath.toString())
-                                count++
-                            }
-                            else
-                            {
-                                break
-                            }
-                        }
-                    }
-                }
-            }
-        }
-        catch (ex: Exception) {
-            var exMsg = ex.message
-        }
-    }
-
-    fun initialMp3Search() {
-        try {
-            var pathList: MutableList<String>?
-            pathList = mutableListOf()
-            var songsAdded = 0
-
-            var fileSearch = File(demoPath.absolutePath)
-            fileSearch.walkTopDown().forEach {
-                println(it.absolutePath)
-                if (!ignoreThisDirectory(it.absolutePath)) {
-                    if (it.isFile) {
-                        if (it.extension == (FileTypes.Mp3)) {
-                            if (songsAdded >= SongSearch.INITIAL_SEARCH_AMOUNT) {
-                                return
-                            }
-                            pathList.add(it.absolutePath)
-                            allSongs = pathList
-                            songsAdded = songsAdded.inc()
-                        }
-                    }
-                }
-            }
-        }
-        catch (ex: Exception) {
-            val exMsg = ex.message
-        }
-    }
-    fun searchForMp3Songs() {
-        try {
-            var pathList: MutableList<String>?
-            pathList = mutableListOf()
-
-            var fileSearch = File(demoPath.absolutePath)
-            fileSearch.walkTopDown().forEach {
-                println(it.absolutePath)
-                if (!ignoreThisDirectory(it.absolutePath)) {
-                    if (it.isFile) {
-                        if (it.extension == (FileTypes.Mp3)) {
-                            pathList.add(it.absolutePath)
-                        }
-                    }
-                }
-            }
-
-            allSongs = pathList
-        }
-        catch (ex: Exception) {
-            val exMsg = ex.message
-        }
-    }
-
-    private fun ignoreThisDirectory(path: String): Boolean {
-        var ignoreDirectory = false
-        try {
-            if (path.contains(DirectoryIgnore.Android_Root)) {
-                ignoreDirectory = true
-            }
-            if (path.contains(DirectoryIgnore.Notifications)) {
-                ignoreDirectory = true
-            }
-            if (path.contains(DirectoryIgnore.Ringtones)) {
-                ignoreDirectory = true
-            }
-            return ignoreDirectory
-        }
-        catch (ex: Exception) {
-            val exMsg = ex.message
-        }
-        return ignoreDirectory
-    }
-}

app/src/main/java/com/example/mear/playback/service/MusicService.kt

@@ -68,6 +68,11 @@ class MusicService(var appPath: String = ""): Service() {
     }
 
 
+    fun downloadSong(token: Token, song: Song, appPath: String) {
+        val trackRepo = TrackRepository()
+        val s = trackRepo.download(token, currentSong, appPath)
+        changeSongDownloadStatus(s)
+    }
     fun icarusPlaySong(token: Token, song: Song, apiInfo: APIInfo) {
         if (song.downloaded) {
             offlinePlaySong(song)
@@ -77,11 +82,12 @@ class MusicService(var appPath: String = ""): Service() {
         val uri = APIRepository.retrieveSongStreamUri(apiInfo, song)
         val hddr = APIRepository.retrieveSongStreamHeader(token)
         currentSong = song
+        currentSongIndex = songQueue.indexOfFirst { it.id == currentSong.id }
 
         try {
             trackPlayer!!.reset()
             trackPlayer!!.setDataSource(this, uri, hddr)
-            trackPlayer!!.prepare()
+            trackPlayer!!.prepareAsync()
             trackPlayer!!.start()
         }
         catch (ex: Exception) {
@@ -89,14 +95,30 @@ class MusicService(var appPath: String = ""): Service() {
         }
     }
 
-    fun changeSongDownloadStatus() {
+    fun changeSongDownloadStatus(song: Song) {
-        currentSong.downloaded = true
+        if (!song.downloaded) {
-        songQueue.forEach {
+            song.downloaded = true
-            s ->
-            if (s.id == currentSong.id) {
-                s.downloaded = true
-            }
         }
+        currentSong = song
+        currentSongIndex = songQueue.indexOfFirst { it.id == currentSong.id }
+        songQueue[currentSongIndex!!] = currentSong
+        /**
+        val curPosition = currentPositionOfTrack()
+        trackPlayer!!.reset()
+        trackPlayer!!.setDataSource(currentSong.path)
+        trackPlayer!!.prepareAsync()
+        trackPlayer!!.seekTo(curPosition)
+        trackPlayer!!.start()
+        */
+    }
+
+    fun removeSongDownloadStatus(song: Song) {
+        if (song.downloaded) {
+            song.downloaded = false
+        }
+        currentSong = song
+        currentSongIndex = songQueue.indexOfFirst { it.id == currentSong.id }
+        songQueue[currentSongIndex!!] = currentSong
     }
 
     fun goToPosition(progress: Int) { trackPlayer!!.seekTo(progress) }
@@ -157,7 +179,7 @@ class MusicService(var appPath: String = ""): Service() {
                         uri, hddr)
                 }
 
-                trackPlayer!!.prepare()
+                trackPlayer!!.prepareAsync()
                 trackPlayer!!.start()
             }
         }
@@ -194,7 +216,7 @@ class MusicService(var appPath: String = ""): Service() {
                     APIRepository.retrieveSongStreamUri(apiInfo, currentSong),
                     APIRepository.retrieveSongStreamHeader(token))
             }
-            trackPlayer!!.prepare()
+            trackPlayer!!.prepareAsync()
             trackPlayer!!.start()
         }
         catch (ex: Exception) {
@@ -275,16 +297,12 @@ class MusicService(var appPath: String = ""): Service() {
     private fun offlinePlaySong(song: Song) {
         try {
             currentSong = song
-            songQueue.forEach{ s ->
+            currentSongIndex = songQueue.indexOfFirst { it.id == song.id }
-                if (s.id == currentSong.id) {
+            songQueue[currentSongIndex!!] = currentSong
-                    s.downloaded = currentSong.downloaded
+
-                    s.filename = currentSong.filename
-                    s.path = currentSong.path
-                }
-            }
             trackPlayer!!.reset()
             trackPlayer!!.setDataSource(song.path)
-            trackPlayer!!.prepare()
+            trackPlayer!!.prepareAsync()
             trackPlayer!!.start()
         }
         catch (ex: Exception) {

app/src/main/java/com/example/mear/repositories/PlayCountRepository.kt

@@ -4,70 +4,8 @@ import android.content.Context
 
 import org.jetbrains.anko.db.*
 
-import com.example.mear.database
 import com.example.mear.models.PlayCount
 import com.example.mear.models.Track
 
 class PlayCountRepository(val context: Context) {
-    fun getAll(): List<PlayCount> = context.database.use {
-        val playCounts = mutableListOf<PlayCount>()
-
-        select("PlayCount" )
-            .parseList(object : MapRowParser<PlayCount>{
-                override fun parseRow(columns: Map<String, Any?>): PlayCount {
-                    val id = columns.getValue("Id").toString().toInt()
-                    val songPlayedAmount = columns.getValue("PlayCount").toString().toInt()
-                    val trackId = columns.getValue("TrackId").toString().toInt()
-
-                    val playCount = PlayCount(id, songPlayedAmount, trackId)
-                    playCounts.add(playCount)
-
-                    return playCount
-                }
-            })
-        playCounts
-    }
-    fun getPlayCount(id: Int): PlayCount = context.database.use {
-        select("PlayCount").where("Id = $id")
-            .parseSingle(object: MapRowParser<PlayCount>{
-                override fun parseRow(columns: Map<String, Any?>): PlayCount {
-                    val id = columns.getValue("Id").toString().toInt()
-                    val songPlayedAmount = columns.getValue("PlayCount").toString().toInt()
-                    val trackId = columns.getValue("TrackId").toString().toInt()
-
-                    val playCount = PlayCount(id, songPlayedAmount, trackId)
-
-                    return playCount
-                }
-            })
-    }
-
-    fun insertPlayCounts(tracks: List<Track>) = context.database.use {
-        transaction {
-            var i = 0
-            for (track in tracks) {
-                insert("PlayCount", "Id" to i++,
-                     "PlayCount" to 0, "TrackId" to track.id)
-            }
-        }
-    }
-
-    fun insertPlayCount(track: Track) = context.database.use {
-        insert("PlayCount",
-            "Id" to track.id,
-            "PlayCount" to 0,
-            "TrackId" to track.id)
-    }
-    fun updatePlayCount(playCount: PlayCount) = context.database.use {
-        update("PlayCount",
-            "PlayCount" to playCount.playCount + 1)
-            .where("Id = {playCountId}", "playCountId" to playCount.id).exec()
-    }
-
-    fun delete(table: PlayCount?) = context.database.use {
-        delete("PlayCount", whereClause = "id = {$table.id}")
-    }
-    fun delete() = context.database.use {
-        delete("PlayCount")
-    }
 }

app/src/main/java/com/example/mear/repositories/SettingRepository.kt

@@ -1,41 +0,0 @@
-package com.example.mear.repositories
-
-import android.content.Context
-
-import org.jetbrains.anko.db.*
-
-import com.example.mear.database
-import com.example.mear.models.Settings
-
-class SettingRepository(val context: Context) {
-    fun getSettings(id: Int): Settings = context.database.use {
-        select("SettingsActivity").where("Id = $id")
-            .parseSingle(object: MapRowParser<Settings>{
-                override fun parseRow(columns: Map<String, Any?>): Settings {
-                    val id = columns.getValue("Id").toString().toInt()
-                    val darkTheme = columns.getValue("DarkTheme").toString().toBoolean()
-
-                    val settings = Settings (id, darkTheme)
-
-                    return settings
-                }
-            })
-    }
-    fun insertSettings(settings: Settings) = context.database.use {
-        insert("SettingsActivity",
-            "Id" to settings.id,
-            "DarkTheme" to false)
-    }
-    fun updateSettings(settings: Settings) = context.database.use {
-        update("SettingsActivity",
-            "DarkTheme" to settings.darkTheme)
-            .where("Id = {settingId}", "settingId" to settings.id).exec()
-    }
-
-    fun delete(table: Settings?) = context.database.use {
-        delete("SettingsActivity", whereClause = "id = {$table.id}")
-    }
-    fun delete() = context.database.use {
-        delete("SettingsActivity")
-    }
-}

app/src/main/java/com/example/mear/repositories/TrackRepository.kt

@@ -4,7 +4,6 @@ import android.content.Context
 
 import org.jetbrains.anko.db.*
 
-import com.example.mear.database
 import com.example.mear.models.Song
 import com.example.mear.models.Token
 import com.example.mear.models.Track
@@ -24,7 +23,7 @@ class TrackRepository(var context: Context? = null) {
     private external fun retrieveSong(token: Token, song: Song, uri: String): Song
     private external fun downloadSong(token: Token, song: Song, path: String): Song
 
-    private external fun deleteSong(song: Song, path: String)
+    private external fun deleteSong(song: Song, path: String): Boolean
 
 
     fun fetchSongs(token: Token, uri: String): Array<Song> {
@@ -48,7 +47,7 @@ class TrackRepository(var context: Context? = null) {
         return downloadSong(token, song, path)
     }
 
-    fun delete(song: Song, path: String) {
+    fun delete(song: Song, path: String): Boolean {
-        deleteSong(song, path)
+        return deleteSong(song, path)
     }
 }

app/src/main/java/com/example/mear/workers/IcarusSync.kt

@@ -0,0 +1,21 @@
+package com.example.mear.workers
+
+import android.content.Context
+import androidx.work.Worker
+import androidx.work.WorkerParameters
+
+
+class IcarusSyncManager(context: Context, workerParams: WorkerParameters) :
+    Worker(context, workerParams) {
+    override fun doWork(): Result {
+        //TODO perform your async operational task here
+        /**
+         * We have performed download task here on above example
+         */
+        val accessToken = inputData.getString("accessToken")
+        val appPath = inputData.getString("appPath")
+        //val songId = inputData.getInt("songId")
+
+        return Result.success()
+    }
+}

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

@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     tools:context=".activities.IcarusSongActivity">
 
-    <android.support.design.widget.AppBarLayout
+    <com.google.android.material.appbar.AppBarLayout
         android:id="@+id/app_bar"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
@@ -14,14 +14,14 @@
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent">
 
-        <android.support.v7.widget.Toolbar
+        <androidx.appcompat.widget.Toolbar
             android:id="@+id/toolbar"
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
             android:background="@color/color_background"
             app:popupTheme="@style/AppTheme.PopupOverlay" />
 
-    </android.support.design.widget.AppBarLayout>
+    </com.google.android.material.appbar.AppBarLayout>
 
 
     <include
@@ -34,4 +34,4 @@
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
 
-</android.support.constraint.ConstraintLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -1,26 +1,26 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     tools:context=".activities.LoginActivity">
 
-    <android.support.design.widget.AppBarLayout
+    <com.google.android.material.appbar.AppBarLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:theme="@style/AppTheme.AppBarOverlay">
 
-        <android.support.v7.widget.Toolbar
+        <androidx.appcompat.widget.Toolbar
             android:id="@+id/toolbar"
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
             android:background="?attr/colorPrimary"
             app:popupTheme="@style/AppTheme.PopupOverlay" />
 
-    </android.support.design.widget.AppBarLayout>
+    </com.google.android.material.appbar.AppBarLayout>
 
-    <android.support.design.widget.FloatingActionButton
+    <com.google.android.material.floatingactionbutton.FloatingActionButton
         android:id="@+id/fab"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
@@ -30,4 +30,4 @@
 
     <include layout="@layout/content_login" />
 
-</android.support.design.widget.CoordinatorLayout>
+</androidx.coordinatorlayout.widget.CoordinatorLayout>

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

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.design.widget.CoordinatorLayout
+<androidx.coordinatorlayout.widget.CoordinatorLayout
         xmlns:android="http://schemas.android.com/apk/res/android"
         xmlns:app="http://schemas.android.com/apk/res-auto"
         xmlns:tools="http://schemas.android.com/tools"
@@ -8,7 +8,7 @@
         android:background="@color/color_background"
         tools:context=".activities.MainActivity">
 
-    <android.support.design.widget.AppBarLayout
+    <com.google.android.material.appbar.AppBarLayout
         android:id="@+id/appBarLayout"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
@@ -21,7 +21,7 @@
             android:gravity="end"
             android:orientation="horizontal">
 
-            <android.support.v7.widget.Toolbar
+            <androidx.appcompat.widget.Toolbar
                 android:id="@+id/toolbar"
                 android:layout_width="354dp"
                 android:layout_height="?attr/actionBarSize"
@@ -39,10 +39,10 @@
                 app:srcCompat="@drawable/ic_action_more_vert" />
         </LinearLayout>
 
-    </android.support.design.widget.AppBarLayout>
+    </com.google.android.material.appbar.AppBarLayout>
 
     <include
         android:id="@+id/include"
         layout="@layout/content_main" />
 
-</android.support.design.widget.CoordinatorLayout>
+</androidx.coordinatorlayout.widget.CoordinatorLayout>

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

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
@@ -8,19 +8,19 @@
     android:background="@color/color_background"
     tools:context=".activities.SettingsActivity">
 
-    <android.support.design.widget.AppBarLayout
+    <com.google.android.material.appbar.AppBarLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:theme="@style/AppTheme.AppBarOverlay">
 
-        <android.support.v7.widget.Toolbar
+        <androidx.appcompat.widget.Toolbar
             android:id="@+id/toolbar"
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
             android:background="@color/color_background"
             app:popupTheme="@style/AppTheme.PopupOverlay" />
 
-    </android.support.design.widget.AppBarLayout>
+    </com.google.android.material.appbar.AppBarLayout>
 
     <include
         android:id="@+id/include3"
@@ -28,4 +28,4 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content" />
 
-</android.support.design.widget.CoordinatorLayout>
+</androidx.coordinatorlayout.widget.CoordinatorLayout>

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

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
@@ -76,4 +76,4 @@
         app:layout_constraintBottom_toTopOf="@+id/login"
         app:layout_constraintStart_toStartOf="parent" />
 
-</android.support.constraint.ConstraintLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
@@ -22,4 +22,4 @@
         layout="@layout/fragment_play_controls"
         app:layout_constraintEnd_toEndOf="parent" />
 
-</android.support.constraint.ConstraintLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
@@ -105,4 +105,4 @@
         </LinearLayout>
 
     </FrameLayout>
-</android.support.constraint.ConstraintLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
@@ -14,7 +14,7 @@
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
 
-    <android.support.v7.widget.SearchView
+    <androidx.appcompat.widget.SearchView
         android:id="@+id/songSearch"
         style="@style/SongSearchViewStyle"
         android:layout_width="match_parent"
@@ -26,7 +26,7 @@
         app:layout_constraintTop_toBottomOf="@+id/space2"
         tools:layout_editor_absoluteX="8dp" />
 
-    <android.support.v7.widget.RecyclerView
+    <androidx.recyclerview.widget.RecyclerView
         android:id="@+id/trackList"
         marginTop="?android:attr/actionBarSize"
         android:layout_width="wrap_content"
@@ -42,4 +42,4 @@
 
     <!-- style="@style/SongSearchViewStyle" -->
 
-</android.support.constraint.ConstraintLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
@@ -43,4 +43,4 @@
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:srcCompat="@android:drawable/ic_media_next" />
-</android.support.constraint.ConstraintLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent" android:layout_height="match_parent">
 
 
-    <android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
+    <androidx.cardview.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
         xmlns:card_view="http://schemas.android.com/apk/res-auto"
         android:id="@+id/cv_settings"
         android:layout_width="wrap_content"
@@ -70,7 +70,7 @@
         </LinearLayout>
 
 
-    </android.support.v7.widget.CardView>
+    </androidx.cardview.widget.CardView>
 
 
-</android.support.constraint.ConstraintLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -1,12 +1,12 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:padding="8dp">
 
-    <android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
+    <androidx.cardview.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
         xmlns:card_view="http://schemas.android.com/apk/res-auto"
         xmlns:tools="http://schemas.android.com/tools"
         android:id="@+id/cv"
@@ -42,7 +42,7 @@
                 android:layout_height="wrap_content"
                 android:orientation="horizontal">
 
-                <android.support.v7.widget.AppCompatImageView
+                <androidx.appcompat.widget.AppCompatImageView
                     android:id="@+id/trackCover"
                     android:layout_width="45dp"
                     android:layout_height="45dp"
@@ -75,6 +75,6 @@
         </LinearLayout>
 
 
-    </android.support.v7.widget.CardView>
+    </androidx.cardview.widget.CardView>
 
-</android.support.constraint.ConstraintLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent" android:layout_height="match_parent">
@@ -19,4 +19,4 @@
         app:layout_constraintTop_toTopOf="parent"
         app:layout_constraintVertical_bias="0.095"
         tools:srcCompat="@tools:sample/backgrounds/scenic[1]" />
-</android.support.constraint.ConstraintLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent" android:layout_height="match_parent">
@@ -48,4 +48,4 @@
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@+id/ArtistTitle"
         app:layout_constraintVertical_bias="0.0" />
-</android.support.constraint.ConstraintLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent" android:layout_height="match_parent">
@@ -43,4 +43,4 @@
         android:textColor="@color/track_details"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent" />
-</android.support.constraint.ConstraintLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent" android:layout_height="match_parent">
@@ -33,4 +33,4 @@
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintTop_toTopOf="parent"
         app:layout_constraintVertical_bias="0.826" />
-</android.support.constraint.ConstraintLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
@@ -58,4 +58,4 @@
             android:textAlignment="center"
             android:textColor="@color/popup_text" />
     </LinearLayout>
-</android.support.constraint.ConstraintLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>

build.gradle

@@ -19,7 +19,6 @@ allprojects {
     repositories {
         google()
         jcenter()
-        
     }
 }