One of RECEIVER_EXPORTED or RECEIVER_NOT_EXPORTED should be specified

This issue has been resolved in version 4.3.0. The NativeMediaPlayer no longer relies on the legacy ExoPlayer. Instead, it now uses a customized media player to handle remote items.

2024-06-29 18:09:11.199 31012 31012 Error AndroidRuntime java.lang.SecurityException: com.glitch9.nativemediaplayer: One of RECEIVER_EXPORTED or RECEIVER_NOT_EXPORTED should be specified when a receiver isn't being registered exclusively for system broadcasts
2024-06-29 18:09:11.199 31012 31012 Error AndroidRuntime 	at android.os.Parcel.createExceptionOrNull(Parcel.java:3057)
2024-06-29 18:09:11.199 31012 31012 Error AndroidRuntime 	at android.os.Parcel.createException(Parcel.java:3041)
2024-06-29 18:09:11.199 31012 31012 Error AndroidRuntime 	at android.os.Parcel.readException(Parcel.java:3024)
2024-06-29 18:09:11.199 31012 31012 Error AndroidRuntime 	at android.os.Parcel.readException(Parcel.java:2966)
2024-06-29 18:09:11.199 31012 31012 Error AndroidRuntime 	at android.app.IActivityManager$Stub$Proxy.registerReceiverWithFeature(IActivityManager.java:5713)
2024-06-29 18:09:11.199 31012 31012 Error AndroidRuntime 	at android.app.ContextImpl.registerReceiverInternal(ContextImpl.java:1852)
2024-06-29 18:09:11.199 31012 31012 Error AndroidRuntime 	at android.app.ContextImpl.registerReceiver(ContextImpl.java:1792)
2024-06-29 18:09:11.199 31012 31012 Error AndroidRuntime 	at android.app.ContextImpl.registerReceiver(ContextImpl.java:1780)
2024-06-29 18:09:11.199 31012 31012 Error AndroidRuntime 	at android.content.ContextWrapper.registerReceiver(ContextWrapper.java:755)
2024-06-29 18:09:11.199 31012 31012 Error AndroidRuntime 	at com.google.android.exoplayer2.ui.PlayerNotificationManager.startOrUpdateNotification(PlayerNotificationManager.java:1165)
2024-06-29 18:09:11.199 31012 31012 Error AndroidRuntime 	at com.google.android.exoplayer2.ui.PlayerNotificationManager.handleMessage(PlayerNotificationManager.java:1415)
2024-06-29 18:09:11.199 31012 31012 Error AndroidRuntime 	at com.google.android.exoplayer2.ui.PlayerNotificationManager.$r8$lambda$hDN6RMWHvTCSAt_reWH1_HHmp5E(Unknown Source:0)
2024-06-29 18:09:11.199 31012 31012 Error AndroidRuntime 	at com.google.android.exoplayer2.ui.PlayerNotificationManager$$ExternalSyntheticLambda0.handleMessage(Unknown Source:2)
2024-06-29 18:09:11.199 31012 31012 Error AndroidRuntime 	at android.os.Handler.dispatchMessage(Handler.java:102)
2024-06-29 18:09:11.199 31012 31012 Error AndroidRuntime 	at android.os.Looper.loopOnce(Looper.java:205)
2024-06-29 18:09:11.199 31012 31012 Error AndroidRuntime 	at android.os.Looper.loop(Looper.java:294)
2024-06-29 18:09:11.199 31012 31012 Error AndroidRuntime 	at android.app.ActivityThread.main(ActivityThread.java:8248)
2024-06-29 18:09:11.199 31012 31012 Error AndroidRuntime 	at java.lang.reflect.Method.invoke(Native Method)
2024-06-29 18:09:11.199 31012 31012 Error AndroidRuntime 	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:552)
2024-06-29 18:09:11.199 31012 31012 Error AndroidRuntime 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:971)
2024-06-29 18:09:11.199 31012 31012 Error AndroidRuntime Caused by: android.os.RemoteException: Remote stack trace:
2024-06-29 18:09:11.199 31012 31012 Error AndroidRuntime 	at com.android.server.am.ActivityManagerService.registerReceiverWithFeature(ActivityManagerService.java:14008)
2024-06-29 18:09:11.199 31012 31012 Error AndroidRuntime 	at android.app.IActivityManager$Stub.onTransact(IActivityManager.java:2585)
2024-06-29 18:09:11.199 31012 31012 Error AndroidRuntime 	at com.android.server.am.ActivityManagerService.onTransact(ActivityManagerService.java:2763)
2024-06-29 18:09:11.199 31012 31012 Error AndroidRuntime 	at android.os.Binder.execTransactInternal(Binder.java:1358)
2024-06-29 18:09:11.199 31012 31012 Error AndroidRuntime 	at android.os.Binder.execTransact(Binder.java:1304)
2024-06-29 18:09:11.199 31012 31012 Error AndroidRuntime 

Problem Description

When developing Android projects using ExoPlayer in Unity, you might encounter a java.lang.SecurityException related to broadcast receivers. This issue arises due to new requirements in Android 12 (API level 31) and above, which mandate specifying RECEIVER_EXPORTED or RECEIVER_NOT_EXPORTED when registering a receiver that is not exclusively for system broadcasts.

What You Might See

The application crashes with an error message stating:

java.lang.SecurityException: One of RECEIVER_EXPORTED or RECEIVER_NOT_EXPORTED should be specified when a receiver isn't being registered exclusively for system broadcasts.

Root Cause

This crash is primarily due to an outdated version of ExoPlayer that does not expose the receiver registration process to the user, making it impossible to specify the required attributes. The issue is exacerbated by Unity's current lack of support for Java 17, which is necessary for migrating to Media3, the successor to ExoPlayer that supports these new requirements.

Workaround

The only feasible workaround, given the constraints, is to target SDK 33 in your project settings. This approach bypasses the need to comply with the stricter requirements introduced in SDK 34 and above, allowing you to continue using ExoPlayer without encountering the SecurityException.

By targeting SDK 33, you ensure compatibility with your existing setup in Unity and avoid the need for a more complex migration that is currently unsupported.