Notification Player not properly loading after pressing stop button.

[am2074]

The notification player works fine until the user presses the stop button. The problem arises when the user presses play again and this time the notification player doesn't come back on. However, if the user uses the pause function in the player itself, the notification player comes back. The correct way it should work is that once the stop button is pressed and the player presses play again, the notification player should reappear as opposed to when calling the pause function.

[monkeyswarm]

I'm assuming you are referring to Android notifications in this case.

It's up to the developer to respond to the notification buttons, and to display the notification when it isn't displayed.

If you are calling AudioSystem.instance.stopBackgroundDisplay() on tapping the notification 'stop' button, then, on resuming playback, you must call AudioSytem.instance.setMetadata() and setPlaybackState() in order for the notification to show up again.

[am2074]

I see. I noticed this problem is apparent in my app, but this problem is also present in this plugin's Example app too, where in this plugin's example, setPlayback() and and setMetaData() are called in the example's "_resumeBackgroundAudio()" Future function, but still fails to get back the notification player once stopBackgroundDisplay() has been called. The notification bar still only appears when pause is played after pressing the stop.

Also, thanks for the quick reply.

[monkeyswarm]

What device and version of Android are you seeing this on?

[am2074]

I'm using a emulation for the Pixel 2.

After just looking around and testing the example, it seems that the resume function retrieves the notification player after stopping will sometimes work and sometimes it won't. I notice that the chance of it not happening occurs more when stopping using the notification player while the audio is still playing.

[am2074]

Also forgot to mention that I'm using API Level 28

[monkeyswarm]

I start the example app, tap play button in card #4. Open the notification and hit 'stop', and wait a second for the notification to go away, then return to the app and hit that same 'play' button in card #4.

I'm getting a full-on crash when I do this on 8.1 on a Nexus 5x. Seems to work ok on a newer device on Android 10 (but perhaps there's a race condition that makes it succeed). I will investigate.

====
08-11 19:05:18.070 16166 16166 I AudiofileplayerService: onStartCommand
08-11 19:05:18.083 1830 1830 E StatusBar: couldn't inflate view for notification com.google.flutter.plugins.audiofileplayer_example/0xd431
08-11 19:05:18.083 1830 1830 E StatusBar: java.lang.IllegalArgumentException: setShowActionsInCompactView: action 0 out of bounds (max -1)
08-11 19:05:18.083 1830 1830 E StatusBar: at android.app.Notification$MediaStyle.makeMediaContentView(Notification.java:6767)
08-11 19:05:18.083 1830 1830 E StatusBar: at android.app.Notification$MediaStyle.makeContentView(Notification.java:6685)
08-11 19:05:18.083 1830 1830 E StatusBar: at android.app.Notification$Builder.createContentView(Notification.java:4431)
08-11 19:05:18.083 1830 1830 E StatusBar: at com.android.systemui.statusbar.notification.NotificationInflater.createContentView(NotificationInflater.java:486)
08-11 19:05:18.083 1830 1830 E StatusBar: at com.android.systemui.statusbar.notification.NotificationInflater.createRemoteViews(NotificationInflater.java:162)
08-11 19:05:18.083 1830 1830 E StatusBar: at com.android.systemui.statusbar.notification.NotificationInflater.-wrap1(Unknown Source:0)
08-11 19:05:18.083 1830 1830 E StatusBar: at com.android.systemui.statusbar.notification.NotificationInflater$AsyncInflationTask.doInBackground(NotificationInflater.java:593)
08-11 19:05:18.083 1830 1830 E StatusBar: at com.android.systemui.statusbar.notification.NotificationInflater$AsyncInflationTask.doInBackground(NotificationInflater.java:574)
08-11 19:05:18.083 1830 1830 E StatusBar: at android.os.AsyncTask$2.call(AsyncTask.java:333)
08-11 19:05:18.083 1830 1830 E StatusBar: at java.util.concurrent.FutureTask.run(FutureTask.java:266)
08-11 19:05:18.083 1830 1830 E StatusBar: at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:245)
08-11 19:05:18.083 1830 1830 E StatusBar: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162)
08-11 19:05:18.083 1830 1830 E StatusBar: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
08-11 19:05:18.083 1830 1830 E StatusBar: at java.lang.Thread.run(Thread.java:764)
08-11 19:05:18.083 1830 1830 W StatusBar: removeNotification for unknown key: 0|com.google.flutter.plugins.audiofileplayer_example|54321|null|10098
08-11 19:05:18.084 767 3449 D NotificationService: onNotification error pkg=com.google.flutter.plugins.audiofileplayer_example tag=null id=54321; will crashApplication(uid=10098, pid=16166)
08-11 19:05:18.085 564 3271 D audio_hw_primary: enable_audio_route: usecase(1) apply and update mixer path: low-latency-playback
08-11 19:05:18.085 564 3271 D audio_route: Apply path: low-latency-playback
08-11 19:05:18.085 16166 16166 D AndroidRuntime: Shutting down VM
08-11 19:05:18.086 16166 16166 E AndroidRuntime: FATAL EXCEPTION: main
08-11 19:05:18.086 16166 16166 E AndroidRuntime: Process: com.google.flutter.plugins.audiofileplayer_example, PID: 16166
08-11 19:05:18.086 16166 16166 E AndroidRuntime: android.app.RemoteServiceException: Bad notification posted from package com.google.flutter.plugins.audiofileplayer_example: Couldn't inflate contentViewsjava.lang.IllegalArgumentException: setShowActionsInCompactView: action 0 out of bounds (max -1)
08-11 19:05:18.086 16166 16166 E AndroidRuntime: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1768)
08-11 19:05:18.086 16166 16166 E AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:106)
08-11 19:05:18.086 16166 16166 E AndroidRuntime: at android.os.Looper.loop(Looper.java:164)
08-11 19:05:18.086 16166 16166 E AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:6494)
08-11 19:05:18.086 16166 16166 E AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method)
08-11 19:05:18.086 16166 16166 E AndroidRuntime: at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
08-11 19:05:18.086 16166 16166 E AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
08-11 19:05:18.088 1830 1830 W StatusBar: removeNotification for unknown key: 0|com.google.flutter.plugins.audiofileplayer_example|54321|null|10098
08-11 19:05:18.090 767 3483 W ActivityManager: Force finishing activity com.google.flutter.plugins.audiofileplayer_example/.MainActivity

[am2074]

Cool.

I tried it on the Android 10, and it seems to better than on the version I was previously using. However, the error I described earlier will sometimes still occur. I will try it on an actual device to see if this also the case and will share my findings.

[am2074]

Just finished trying it on an actual android device which is a Pixel 3 that is on Android 10. The app crashes in both mine and the examples right after pressing the 'stop' button on the notification player.

Here is the error from the example app tested on an actual device:

D/AndroidRuntime( 8763): Shutting down VM
E/AndroidRuntime( 8763): FATAL EXCEPTION: main
E/AndroidRuntime( 8763): Process: example, PID: 8763
E/AndroidRuntime( 8763): android.app.RemoteServiceException: Bad notification(tag=null, id=54321) posted from package example, crashing app(uid=10243, pid=8763): Couldn't inflate contentViewsjava.lang.IllegalArgumentException: setShowActionsInCompactView: action 0 out of bounds (max -1)
E/AndroidRuntime( 8763): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1945)
E/AndroidRuntime( 8763): at android.os.Handler.dispatchMessage(Handler.java:107)
E/AndroidRuntime( 8763): at android.os.Looper.loop(Looper.java:214)
E/AndroidRuntime( 8763): at android.app.ActivityThread.main(ActivityThread.java:7356)
E/AndroidRuntime( 8763): at java.lang.reflect.Method.invoke(Native Method)
E/AndroidRuntime( 8763): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
E/AndroidRuntime( 8763): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)

[monkeyswarm]

I just made a fix and published it as version 1.3.2. Please try that and let me know if it fixes the issue for you.

[am2074]

Awesome. I'm reporting no problems so far when I try it on an actual device with the new update.

Thank you very much, I appreciate the quick responses.