DemoPlaybackService: catch exception when loading an artwork bitmap

When there is an error loading the bitmap we want to skip the
bitmap population instead of throwing an error that crashes the app.

PiperOrigin-RevId: 761995989

Author: tianyif

demos/session_service/src/main/java/androidx/media3/demo/session/DemoPlaybackService.kt

@@ -193,10 +193,16 @@ open class DemoPlaybackService : MediaLibraryService() {
           if (artworkUri == null) {
             builder.setArtworkData(ByteString.EMPTY)
           } else {
-            val bitmap = mediaLibrarySession.bitmapLoader.loadBitmap(artworkUri).await()
-            val outputStream = ByteString.newOutput()
-            bitmap.compress(Bitmap.CompressFormat.PNG, /* quality= */ 90, outputStream)
-            builder.setArtworkData(outputStream.toByteString())
+            try {
+              val bitmap = mediaLibrarySession.bitmapLoader.loadBitmap(artworkUri).await()
+              if (bitmap != null) {
+                val outputStream = ByteString.newOutput()
+                bitmap.compress(Bitmap.CompressFormat.PNG, /* quality= */ 90, outputStream)
+                builder.setArtworkData(outputStream.toByteString())
+              }
+            } catch (e: Exception) {
+              // Bitmap loading failed. Do nothing.
+            }
           }
         }
         builder.build()