Xamarin Forms: Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be specified when creating a PendingIntent

Question

I am getting the below error for my xamarin forms application on version 31 and above.

com.mycompanyname.myappname: Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be specified when creating a PendingIntent.
Strongly consider using FLAG_IMMUTABLE, only use FLAG_MUTABLE if some functionality depends on the PendingIntent being mutable, e.g. if it needs to be used with inline replies or bubbles.
[ImeFocusController] onWindowFocus: DecorView@74e918a[MainActivity] softInputMode=STATE_UNSPECIFIED|ADJUST_RESIZE|IS_FORWARD_NAVIGATION
[ImeFocusController] Restarting due to isRestartOnNextWindowFocus as true
[ImeFocusController] onViewFocusChanged, view=DecorView@74e918a[MainActivity], mServedView=null
[ImeFocusController] checkFocus: view=null next=DecorView@74e918a[MainActivity] force=true package=<none>
The thread 0xb has exited with code 0 (0x0).
[AndroidRuntime] FATAL EXCEPTION: pool-2-thread-1
[AndroidRuntime] Process: com.mycompanyname.myappname, PID: 7466
[AndroidRuntime] java.lang.IllegalArgumentException: com.mycompanyname.myappname: Targeting S+ (version 31 and above) >requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be specified when creating a PendingIntent.
[AndroidRuntime] Strongly consider using FLAG_IMMUTABLE, only use FLAG_MUTABLE if some functionality depends on the >PendingIntent being mutable, e.g. if it needs to be used with inline replies or bubbles.
[AndroidRuntime] at android.app.PendingIntent.checkFlags(PendingIntent.java:375)
[AndroidRuntime] at android.app.PendingIntent.getBroadcastAsUser(PendingIntent.java:645)
[AndroidRuntime] at android.app.PendingIntent.getBroadcast(PendingIntent.java:632)
[AndroidRuntime] at com.google.firebase.iid.zzl.zzd(Unknown Source:18)
[AndroidRuntime] at com.google.firebase.iid.zzl.zzb(Unknown Source:229)
[AndroidRuntime] at com.google.firebase.iid.zzl.zza(Unknown Source:0)
[AndroidRuntime] at com.google.firebase.iid.zzj.zzb(Unknown Source:41)
[AndroidRuntime] at com.google.firebase.iid.zzj.getToken(Unknown Source:56)
[AndroidRuntime] at com.google.firebase.iid.FirebaseInstanceId.getToken(Unknown Source:10)
[AndroidRuntime] at com.google.firebase.iid.FirebaseInstanceId.zzcfy(Unknown Source:4)
[AndroidRuntime] at com.google.firebase.iid.FirebaseInstanceIdService.zza(Unknown Source:148)
[AndroidRuntime] at com.google.firebase.iid.FirebaseInstanceIdService.handleIntent(Unknown Source:122)
[AndroidRuntime] at com.google.firebase.iid.zzc.run(Unknown Source:4)
[AndroidRuntime] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
[AndroidRuntime] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
[AndroidRuntime] at java.lang.Thread.run(Thread.java:920)
Thread started: #12
Java.Lang.IllegalArgumentException: 'com.mycompanyname.myappname: Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be specified when creating a PendingIntent.
Strongly consider using FLAG_IMMUTABLE, only use FLAG_MUTABLE if some functionality depends on the PendingIntent being mutable, e.g. if it needs to be used with inline replies or bubbles.'

I am using pendingIntent on my project for FCM.

var intent = new Intent(this, typeof(MainActivity));  
intent.AddFlags(ActivityFlags.ClearTop);  
var pendingIntent = PendingIntent.GetActivity(this, 0, intent, PendingIntentFlags.OneShot);  

I tried FLAG_IMMUTABLE and FLAG_MUTABLE instead of OneShot, but app is breaking. I commented the entire code related to FCM, but after that also, the app is breaking with the same issue.

I tried updating the FCM related Packages, that also don't work. Any other olutions?

Answer 1

Hello,

This should be due to a lack of runtime environment.

You could add this Nuget package into your project Xamarin.AndroidX.Work.Runtime.

Best Regards,

Alec Liu.

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Answer 2

We are having the same problem. The above solution did not work.

Xamarin Forms:

Java.Lang.IllegalArgumentException

Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be specified when creating a PendingIntent.

Strongly consider using FLAG_IMMUTABLE, only use FLAG_MUTABLE if some functionality depends on the PendingIntent being mutable, e.g. if it needs to be used with inline replies or bubbles.

Answer 3

Just set PendingIntentFlags.OneShot, to PendingIntentFlags.NoCreate or PendingIntentFlags.Inmutable,