Fix: check permission before media store query, Add: start of casting

android/app/build.gradle

@@ -13,8 +13,8 @@ android {
         applicationId "com.audiobookshelf.app"
         minSdkVersion rootProject.ext.minSdkVersion
         targetSdkVersion rootProject.ext.targetSdkVersion
-        versionCode 42
+        versionCode 43
-        versionName "0.9.23-beta"
+        versionName "0.9.24-beta"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         aaptOptions {
              // Files and dirs to omit from the packaged assets dir, modified to accommodate modern web apps.

android/app/src/main/AndroidManifest.xml

@@ -29,17 +29,22 @@
           android:name="com.google.android.gms.car.application"
           android:resource="@xml/automotive_app_desc"/>
 
+        <!-- Support for Cast -->
+        <meta-data android:name="com.google.android.gms.cast.framework.OPTIONS_PROVIDER_CLASS_NAME"
+          android:value="com.audiobookshelf.app.CastOptionsProvider"/>
+
         <activity
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|smallestScreenSize|screenLayout|uiMode"
             android:name="com.audiobookshelf.app.MainActivity"
             android:label="@string/title_activity_main"
+            android:exported="true"
             android:theme="@style/AppTheme.NoActionBarLaunch"
             android:launchMode="singleTask">
 
-            <intent-filter>
+          <intent-filter>
-                <action android:name="android.intent.action.MAIN" />
+              <action android:name="android.intent.action.MAIN" />
-                <category android:name="android.intent.category.LAUNCHER" />
+              <category android:name="android.intent.category.LAUNCHER" />
-            </intent-filter>
+          </intent-filter>
 
           <intent-filter>
             <action android:name="android.media.action.MEDIA_PLAY_FROM_SEARCH" />

android/app/src/main/java/com/audiobookshelf/app/CastOptionsProvider.kt

@@ -0,0 +1,28 @@
+package com.audiobookshelf.app
+
+import android.content.Context
+import android.util.Log
+import com.google.android.gms.cast.CastMediaControlIntent
+import com.google.android.gms.cast.framework.CastOptions
+import com.google.android.gms.cast.framework.OptionsProvider
+import com.google.android.gms.cast.framework.SessionProvider
+import com.google.android.gms.cast.framework.media.CastMediaOptions
+
+class CastOptionsProvider : OptionsProvider {
+  override fun getCastOptions(context: Context): CastOptions {
+    Log.d("CastOptionsProvider", "getCastOptions")
+    return CastOptions.Builder()
+      .setReceiverApplicationId(CastMediaControlIntent.DEFAULT_MEDIA_RECEIVER_APPLICATION_ID).setCastMediaOptions(
+        CastMediaOptions.Builder()
+          // We manage the media session and the notifications ourselves.
+          .setMediaSessionEnabled(false)
+          .setNotificationOptions(null)
+          .build()
+      )
+      .setStopReceiverApplicationWhenEndingSession(true).build()
+  }
+
+  override fun getAdditionalSessionProviders(context: Context): List<SessionProvider>? {
+    return null
+  }
+}

android/app/src/main/java/com/audiobookshelf/app/LocalMediaManager.kt

@@ -1,12 +1,19 @@
 package com.audiobookshelf.app
 
+import android.Manifest
 import android.content.ContentUris
 import android.content.Context
+import android.content.pm.PackageManager
 import android.database.Cursor
 import android.net.Uri
+import android.os.Build
 import android.provider.MediaStore
 import android.support.v4.media.MediaMetadataCompat
 import android.util.Log
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.core.app.ActivityCompat.shouldShowRequestPermissionRationale
+import androidx.core.content.ContextCompat
+import androidx.core.content.PermissionChecker.PERMISSION_GRANTED
 
 class LocalMediaManager {
   private var ctx: Context
@@ -40,8 +47,23 @@ class LocalMediaManager {
   fun loadLocalAudio() {
     Log.d(tag, "Media store looking for local audio files")
 
+
+    if (ContextCompat.checkSelfPermission(ctx, Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
+      Log.e(tag, "Permission not granted to read from external storage")
+      return
+    }
+
+    val collection =
+      if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
+        MediaStore.Audio.Media.getContentUri(
+          MediaStore.VOLUME_EXTERNAL
+        )
+      } else {
+        MediaStore.Audio.Media.EXTERNAL_CONTENT_URI
+      }
+
     val proj = arrayOf(MediaStore.Audio.Media._ID, MediaStore.Audio.Media.DISPLAY_NAME, MediaStore.Audio.Media.DURATION, MediaStore.Audio.Media.SIZE)
-    val audioCursor: Cursor? = ctx.contentResolver.query(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, proj, null, null, null)
+    val audioCursor: Cursor? = ctx.contentResolver.query(collection, proj, null, null, null)
 
     audioCursor?.use { cursor ->
       // Cache column indices.

android/app/src/main/java/com/audiobookshelf/app/MainActivity.kt

@@ -1,10 +1,14 @@
 package com.audiobookshelf.app
 
+import android.Manifest
 import android.app.DownloadManager
 import android.app.SearchManager
 import android.content.*
+import android.content.pm.PackageManager
 import android.os.*
 import android.util.Log
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.core.content.ContextCompat
 import com.anggrayudi.storage.SimpleStorage
 import com.anggrayudi.storage.SimpleStorageHelper
 import com.getcapacitor.BridgeActivity
@@ -41,13 +45,6 @@ class MainActivity : BridgeActivity() {
   public override fun onCreate(savedInstanceState: Bundle?) {
     super.onCreate(savedInstanceState)
 
-    // REMOVE FOR TESTING
-    Log.d(tag, "STARTING UP APP")
-//    var client: OkHttpClient = OkHttpClient()
-//    var abManager = AudiobookManager(this, client)
-//    abManager.init()
-//    abManager.fetchAudiobooks()
-
     Log.d(tag, "onCreate")
     registerPlugin(MyNativeAudio::class.java)
     registerPlugin(AudioDownloader::class.java)

android/app/src/main/java/com/audiobookshelf/app/MyNativeAudio.kt

@@ -231,4 +231,27 @@ class MyNativeAudio : Plugin() {
     playerNotificationService.cancelSleepTimer()
     call.resolve()
   }
+
+  @PluginMethod
+  fun requestSession(call:PluginCall) {
+    Log.d(tag, "CAST REQUEST SESSION PLUGIN")
+
+      playerNotificationService.requestSession(mainActivity, object : PlayerNotificationService.RequestSessionCallback() {
+        override fun onError(errorCode: Int) {
+          Log.e(tag, "CAST REQUEST SESSION CALLBACK ERROR $errorCode")
+        }
+
+        override fun onCancel() {
+          Log.d(tag, "CAST REQUEST SESSION ON CANCEL")
+        }
+
+        override fun onJoin(jsonSession: JSONObject?) {
+          Log.d(tag, "CAST REQUEST SESSION ON JOIN")
+        }
+
+      })
+
+
+
+  }
 }

android/app/src/main/java/com/audiobookshelf/app/PlayerNotificationService.kt

@@ -20,12 +20,18 @@ import androidx.annotation.RequiresApi
 import androidx.core.app.NotificationCompat
 import androidx.media.MediaBrowserServiceCompat
 import androidx.media.utils.MediaConstants
+import androidx.mediarouter.app.MediaRouteChooserDialog
+import androidx.mediarouter.media.MediaRouteSelector
+import androidx.mediarouter.media.MediaRouter
 import com.bumptech.glide.Glide
 import com.bumptech.glide.load.engine.DiskCacheStrategy
 import com.bumptech.glide.request.RequestOptions
 import com.getcapacitor.JSObject
+import com.getcapacitor.PluginCall
 import com.google.android.exoplayer2.*
 import com.google.android.exoplayer2.audio.AudioAttributes
+import com.google.android.exoplayer2.ext.cast.CastPlayer
+import com.google.android.exoplayer2.ext.cast.SessionAvailabilityListener
 import com.google.android.exoplayer2.ext.mediasession.MediaSessionConnector
 import com.google.android.exoplayer2.ext.mediasession.TimelineQueueNavigator
 import com.google.android.exoplayer2.source.MediaSource
@@ -33,8 +39,13 @@ import com.google.android.exoplayer2.source.ProgressiveMediaSource
 import com.google.android.exoplayer2.source.hls.HlsMediaSource
 import com.google.android.exoplayer2.ui.PlayerNotificationManager
 import com.google.android.exoplayer2.upstream.*
+import com.google.android.gms.cast.Cast.MessageReceivedCallback
+import com.google.android.gms.cast.CastDevice
+import com.google.android.gms.cast.CastMediaControlIntent
+import com.google.android.gms.cast.framework.*
 import kotlinx.coroutines.*
 import okhttp3.OkHttpClient
+import org.json.JSONObject
 import java.util.*
 import kotlin.concurrent.schedule
 
@@ -90,6 +101,7 @@ class PlayerNotificationService : MediaBrowserServiceCompat()  {
   private var sleepChapterTime:Long = 0L
 
   private lateinit var audiobookManager:AudiobookManager
+  private var newConnectionListener:SessionListener? = null
 
   fun setCustomObjectListener(mylistener: MyCustomObjectListener) {
     listener = mylistener
@@ -490,9 +502,6 @@ class PlayerNotificationService : MediaBrowserServiceCompat()  {
             terminateStream()
           }
           KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE -> {
-            Log.d(tag, "PLAY PAUSE TEST")
-//            transportControls.playFromSearch("Brave New World", Bundle())
-
             if (mPlayer.isPlaying) {
               if (0 == mediaButtonClickCount) pause()
               handleMediaButtonClickCount()
@@ -997,5 +1006,361 @@ class PlayerNotificationService : MediaBrowserServiceCompat()  {
     sleepTimerTask = null
     sleepChapterTime = 0L
   }
+
+  /**
+   * If Cast is available, create a CastPlayer to handle communication with a Cast session.
+   */
+  private val castPlayer: CastPlayer? by lazy {
+    try {
+      val castContext = CastContext.getSharedInstance(this)
+      CastPlayer(castContext).apply {
+        setSessionAvailabilityListener(CastSessionAvailabilityListener())
+//        addListener(playerListener)
+      }
+    } catch (e: Exception) {
+      // We wouldn't normally catch the generic `Exception` however
+      // calling `CastContext.getSharedInstance` can throw various exceptions, all of which
+      // indicate that Cast is unavailable.
+      // Related internal bug b/68009560.
+      Log.i(tag, "Cast is not available on this device. " +
+        "Exception thrown when attempting to obtain CastContext. " + e.message)
+      null
+    }
+  }
+
+  private inner class CastSessionAvailabilityListener : SessionAvailabilityListener {
+
+    /**
+     * Called when a Cast session has started and the user wishes to control playback on a
+     * remote Cast receiver rather than play audio locally.
+     */
+    override fun onCastSessionAvailable() {
+//      switchToPlayer(currentPlayer, castPlayer!!)
+      Log.d(tag, "CAST SeSSION AVAILABLE " + castPlayer?.deviceInfo)
+        mediaSessionConnector.setPlayer(castPlayer)
+    }
+
+    /**
+     * Called when a Cast session has ended and the user wishes to control playback locally.
+     */
+    override fun onCastSessionUnavailable() {
+//      switchToPlayer(currentPlayer, exoPlayer)
+      Log.d(tag, "CAST SESSION UNAVAILABLE")
+      mediaSessionConnector.setPlayer(mPlayer)
+    }
+  }
+
+  fun requestSession(mainActivity:Activity, callback: RequestSessionCallback) {
+  mainActivity.runOnUiThread(object: Runnable {
+    override fun run() {
+        Log.d(tag, "CAST RUNNING ON MAIN THREAD")
+
+        val session: CastSession? = getSession()
+        if (session == null) {
+          // show the "choose a connection" dialog
+
+          // Add the connection listener callback
+          listenForConnection(callback)
+
+          // Create the dialog
+          // TODO accept theme as a config.xml option
+          val builder = MediaRouteChooserDialog(mainActivity, androidx.appcompat.R.style.Theme_AppCompat_NoActionBar)
+          builder.routeSelector = MediaRouteSelector.Builder()
+            .addControlCategory(CastMediaControlIntent.categoryForCast(CastMediaControlIntent.DEFAULT_MEDIA_RECEIVER_APPLICATION_ID))
+            .build()
+          builder.setCanceledOnTouchOutside(true)
+          builder.setOnCancelListener {
+            getSessionManager()!!.removeSessionManagerListener(newConnectionListener, CastSession::class.java)
+            callback.onCancel()
+          }
+          builder.show()
+        } else {
+          // We are are already connected, so show the "connection options" Dialog
+          val builder: AlertDialog.Builder = AlertDialog.Builder(mainActivity)
+          if (session.castDevice != null) {
+            builder.setTitle(session.castDevice.friendlyName)
+          }
+          builder.setOnDismissListener { callback.onCancel() }
+          builder.setPositiveButton("Stop Casting") { dialog, which -> endSession(true, null) }
+          builder.show()
+        }
+    }
+  })
+  }
+
+  abstract class RequestSessionCallback : ConnectionCallback {
+    abstract fun onError(errorCode: Int)
+    abstract fun onCancel()
+    override fun onSessionEndedBeforeStart(errorCode: Int): Boolean {
+      onSessionStartFailed(errorCode)
+      return true
+    }
+
+    override fun onSessionStartFailed(errorCode: Int): Boolean {
+      onError(errorCode)
+      return true
+    }
+  }
+
+  fun endSession(stopCasting: Boolean, pluginCall: PluginCall?) {
+
+    getSessionManager()!!.addSessionManagerListener(object : SessionListener() {
+      override fun onSessionEnded(castSession: CastSession?, error: Int) {
+        getSessionManager()!!.removeSessionManagerListener(this, CastSession::class.java)
+        Log.d(tag, "CAST END SESSION")
+//        media.setSession(null)
+        pluginCall?.resolve()
+//        listener.onSessionEnd(ChromecastUtilities.createSessionObject(castSession, if (stopCasting) "stopped" else "disconnected"))
+      }
+    }, CastSession::class.java)
+    getSessionManager()!!.endCurrentSession(stopCasting)
+
+  }
+
+  open class SessionListener : SessionManagerListener<CastSession> {
+    override fun onSessionStarting(castSession: CastSession?) {}
+    override fun onSessionStarted(castSession: CastSession?, sessionId: String) {}
+    override fun onSessionStartFailed(castSession: CastSession?, error: Int) {}
+    override fun onSessionEnding(castSession: CastSession?) {}
+    override fun onSessionEnded(castSession: CastSession?, error: Int) {}
+    override fun onSessionResuming(castSession: CastSession?, sessionId: String) {}
+    override fun onSessionResumed(castSession: CastSession?, wasSuspended: Boolean) {}
+    override fun onSessionResumeFailed(castSession: CastSession?, error: Int) {}
+    override fun onSessionSuspended(castSession: CastSession?, reason: Int) {}
+  }
+
+  private fun startRouteScan() {
+    var connListener = object: ChromecastListener() {
+      override fun onReceiverAvailableUpdate(available: Boolean) {
+        Log.d(tag, "CAST RECEIVER UPDATE AVAILABLE $available")
+      }
+
+      override fun onSessionRejoin(jsonSession: JSONObject?) {
+        Log.d(tag, "CAST onSessionRejoin")
+      }
+
+      override fun onMediaLoaded(jsonMedia: JSONObject?) {
+        Log.d(tag, "CAST onMediaLoaded")
+      }
+
+      override fun onMediaUpdate(jsonMedia: JSONObject?) {
+        Log.d(tag, "CAST onMediaUpdate")
+      }
+
+      override fun onSessionUpdate(jsonSession: JSONObject?) {
+        Log.d(tag, "CAST onSessionUpdate")
+      }
+
+      override fun onSessionEnd(jsonSession: JSONObject?) {
+        Log.d(tag, "CAST onSessionEnd")
+      }
+
+      override fun onMessageReceived(p0: CastDevice, p1: String, p2: String) {
+        Log.d(tag, "CAST onMessageReceived")
+      }
+    }
+
+    var callback = object : ScanCallback() {
+      override fun onRouteUpdate(routes: List<MediaRouter.RouteInfo>?) {
+        Log.d(tag, "CAST On ROUTE UPDATED ${routes?.size} | ${getContext().castState}")
+        // if the routes have changed, we may have an available device
+        // If there is at least one device available
+        if (getContext().castState != CastState.NO_DEVICES_AVAILABLE) {
+
+          routes?.forEach { Log.d(tag, "CAST ROUTE ${it.description} | ${it.deviceType} | ${it.isBluetooth} | ${it.name}") }
+
+          // Stop the scan
+          stopRouteScan(this, null);
+          // Let the client know a receiver is available
+          connListener.onReceiverAvailableUpdate(true);
+          // Since we have a receiver we may also have an active session
+          var session = getSessionManager()?.currentCastSession;
+          // If we do have a session
+          if (session != null) {
+            // Let the client know
+            Log.d(tag, "LET SESSION KNOW ABOUT")
+//            media.setSession(session);
+//            connListener.onSessionRejoin(ChromecastUtilities.createSessionObject(session));
+          }
+        }
+      }
+    }
+    callback.setMediaRouter(getMediaRouter())
+
+    callback.onFilteredRouteUpdate();
+
+    getMediaRouter()!!.addCallback(MediaRouteSelector.Builder()
+      .addControlCategory(CastMediaControlIntent.categoryForCast(CastMediaControlIntent.DEFAULT_MEDIA_RECEIVER_APPLICATION_ID))
+      .build(),
+      callback,
+      MediaRouter.CALLBACK_FLAG_PERFORM_ACTIVE_SCAN)
+  }
+
+  internal interface CastListener : MessageReceivedCallback {
+    fun onMediaLoaded(jsonMedia: JSONObject?)
+    fun onMediaUpdate(jsonMedia: JSONObject?)
+    fun onSessionUpdate(jsonSession: JSONObject?)
+    fun onSessionEnd(jsonSession: JSONObject?)
+  }
+
+  internal abstract class ChromecastListener : CastStateListener, CastListener {
+    abstract fun onReceiverAvailableUpdate(available: Boolean)
+    abstract fun onSessionRejoin(jsonSession: JSONObject?)
+
+    /** CastStateListener functions.  */
+    override fun onCastStateChanged(state: Int) {
+      onReceiverAvailableUpdate(state != CastState.NO_DEVICES_AVAILABLE)
+    }
+  }
+
+  fun stopRouteScan(callback: ScanCallback?, completionCallback: Runnable?) {
+    if (callback == null) {
+      completionCallback!!.run()
+      return
+    }
+//    ctx.runOnUiThread(Runnable {
+      callback.stop()
+      getMediaRouter()!!.removeCallback(callback)
+      completionCallback?.run()
+//    })
+  }
+
+  abstract class ScanCallback : MediaRouter.Callback() {
+    /**
+     * Called whenever a route is updated.
+     * @param routes the currently available routes
+     */
+    abstract fun onRouteUpdate(routes: List<MediaRouter.RouteInfo>?)
+
+    /** records whether we have been stopped or not.  */
+    private var stopped = false
+
+    /** Global mediaRouter object.  */
+    private var mediaRouter: MediaRouter? = null
+
+    /**
+     * Sets the mediaRouter object.
+     * @param router mediaRouter object
+     */
+    fun setMediaRouter(router: MediaRouter?) {
+      mediaRouter = router
+    }
+
+    /**
+     * Call this method when you wish to stop scanning.
+     * It is important that it is called, otherwise battery
+     * life will drain more quickly.
+     */
+    fun stop() {
+      stopped = true
+    }
+
+    fun onFilteredRouteUpdate() {
+      if (stopped || mediaRouter == null) {
+        return
+      }
+      val outRoutes: MutableList<MediaRouter.RouteInfo> = ArrayList()
+      // Filter the routes
+      for (route in mediaRouter!!.routes) {
+        // We don't want default routes, or duplicate active routes
+        // or multizone duplicates https://github.com/jellyfin/cordova-plugin-chromecast/issues/32
+        val extras: Bundle? = route.extras
+        if (extras != null) {
+          CastDevice.getFromBundle(extras)
+          if (extras.getString("com.google.android.gms.cast.EXTRA_SESSION_ID") != null) {
+            continue
+          }
+        }
+        if (!route.isDefault
+          && !route.description.equals("Google Cast Multizone Member")
+          && route.playbackType === MediaRouter.RouteInfo.PLAYBACK_TYPE_REMOTE) {
+          outRoutes.add(route)
+        }
+      }
+      onRouteUpdate(outRoutes)
+    }
+
+    override fun onRouteAdded(router: MediaRouter?, route: MediaRouter.RouteInfo?) {
+      onFilteredRouteUpdate()
+    }
+
+    override fun onRouteChanged(router: MediaRouter?, route: MediaRouter.RouteInfo?) {
+      onFilteredRouteUpdate()
+    }
+
+    override fun onRouteRemoved(router: MediaRouter?, route: MediaRouter.RouteInfo?) {
+      onFilteredRouteUpdate()
+    }
+  }
+
+  private fun listenForConnection(callback: ConnectionCallback) {
+    // We should only ever have one of these listeners active at a time, so remove previous
+    getSessionManager()?.removeSessionManagerListener(newConnectionListener, CastSession::class.java)
+
+    newConnectionListener = object : SessionListener() {
+      override fun onSessionStarted(castSession: CastSession?, sessionId: String) {
+        Log.d(tag, "CAST SESSION STARTED ${castSession?.castDevice?.friendlyName}")
+        getSessionManager()?.removeSessionManagerListener(this, CastSession::class.java)
+//        media.setSession(castSession)
+//        callback.onJoin(ChromecastUtilities.createSessionObject(castSession))
+      }
+
+      override fun onSessionStartFailed(castSession: CastSession?, errCode: Int) {
+        if (callback.onSessionStartFailed(errCode)) {
+          getSessionManager()?.removeSessionManagerListener(this, CastSession::class.java)
+        }
+      }
+
+      override fun onSessionEnded(castSession: CastSession?, errCode: Int) {
+        if (callback.onSessionEndedBeforeStart(errCode)) {
+          getSessionManager()?.removeSessionManagerListener(this, CastSession::class.java)
+        }
+      }
+    }
+
+    getSessionManager()?.addSessionManagerListener(newConnectionListener, CastSession::class.java)
+  }
+
+  private fun getContext(): CastContext {
+    return CastContext.getSharedInstance(ctx)
+  }
+
+  private fun getSessionManager(): SessionManager? {
+    return getContext().sessionManager
+  }
+
+  private fun getMediaRouter(): MediaRouter? {
+    return MediaRouter.getInstance(ctx)
+  }
+
+  private fun getSession(): CastSession? {
+    return getSessionManager()?.currentCastSession
+  }
+
+  internal interface ConnectionCallback {
+    /**
+     * Successfully joined a session on a route.
+     * @param jsonSession the session we joined
+     */
+    fun onJoin(jsonSession: JSONObject?)
+
+    /**
+     * Called if we received an error.
+     * @param errorCode You can find the error meaning here:
+     * https://developers.google.com/android/reference/com/google/android/gms/cast/CastStatusCodes
+     * @return true if we are done listening for join, false, if we to keep listening
+     */
+    fun onSessionStartFailed(errorCode: Int): Boolean
+
+    /**
+     * Called when we detect a session ended event before session started.
+     * See issues:
+     * https://github.com/jellyfin/cordova-plugin-chromecast/issues/49
+     * https://github.com/jellyfin/cordova-plugin-chromecast/issues/48
+     * @param errorCode error to output
+     * @return true if we are done listening for join, false, if we to keep listening
+     */
+    fun onSessionEndedBeforeStart(errorCode: Int): Boolean
+  }
 }
 

android/app/src/main/java/com/audiobookshelf/app/StorageManager.kt

@@ -11,10 +11,7 @@ import com.anggrayudi.storage.SimpleStorage
 import com.anggrayudi.storage.callback.FolderPickerCallback
 import com.anggrayudi.storage.callback.StorageAccessCallback
 import com.anggrayudi.storage.file.*
-import com.getcapacitor.JSObject
+import com.getcapacitor.*
-import com.getcapacitor.Plugin
-import com.getcapacitor.PluginCall
-import com.getcapacitor.PluginMethod
 import com.getcapacitor.annotation.CapacitorPlugin
 
 @CapacitorPlugin(name = "StorageManager")
@@ -160,7 +157,17 @@ class StorageManager : Plugin() {
     var folderUrl = call.data.getString("folderUrl", "").toString()
     Log.d(TAG, "Searching folder $folderUrl")
 
-    var df: DocumentFile = DocumentFileCompat.fromUri(context, Uri.parse(folderUrl))!!
+    var df: DocumentFile? = DocumentFileCompat.fromUri(context, Uri.parse(folderUrl))
+
+    if (df == null) {
+      Log.e(TAG, "Folder Doc File Invalid $folderUrl")
+      var jsobj = JSObject()
+      jsobj.put("folders", JSArray())
+      jsobj.put("files", JSArray())
+      call.resolve(jsobj)
+      return
+    }
+
     Log.d(TAG, "Folder as DF ${df.isDirectory} | ${df.getSimplePath(context)} | ${df.getBasePath(context)} | ${df.name}")
 
     var mediaFolders = mutableListOf<MediaFolder>()

components/app/Appbar.vue

@@ -23,6 +23,7 @@
       <!-- <span class="material-icons cursor-pointer mx-4" :class="hasDownloadsFolder ? '' : 'text-warning'" @click="$store.commit('downloads/setShowModal', true)">source</span> -->
 
       <!-- <widgets-connection-icon /> -->
+      <!-- <span class="material-icons" style="font-size: 1.75rem" @click="testCast">menu</span> -->
 
       <nuxt-link class="h-7 mx-2" to="/search">
         <span class="material-icons" style="font-size: 1.75rem">search</span>
@@ -36,6 +37,8 @@
 </template>
 
 <script>
+// import MyNativeAudio from '@/plugins/my-native-audio'
+
 export default {
   data() {
     return {
@@ -83,6 +86,10 @@ export default {
     }
   },
   methods: {
+    // testCast() {
+    //   console.log('TEST CAST CLICK')
+    //   MyNativeAudio.requestSession()
+    // },
     clickShowSideDrawer() {
       this.$store.commit('setShowSideDrawer', true)
     },

package.json

@@ -1,6 +1,6 @@
 {
   "name": "audiobookshelf-app",
-  "version": "v0.9.23-beta",
+  "version": "v0.9.24-beta",
   "author": "advplyr",
   "scripts": {
     "dev": "nuxt --hostname localhost --port 1337",