Android 14 nordic DFU library

[asaf]

hello,

I'm try to fit my application to Android 14.

my application implement nordic DFU library ( for nrf52833 running  freeRTOS firmware SDK 16 ) version 2.5.0

while running DFU the process run but crash and the complition:

dfu run method:

    private void runDfuOnDevice(BluetoothDevice device) {
        DfuServiceInitiator.createDfuNotificationChannel(getActivity().getApplicationContext());
        mDfustarter = new DfuServiceInitiator(device.getAddress())
                .setDeviceName(device.getName())
                .setUnsafeExperimentalButtonlessServiceInSecureDfuEnabled(true)
                .setKeepBond(false);
        //mDfustarter.setPrepareDataObjectDelay(300L);

        mDfustarter.setZip(mPath+"/"+mChosenFile);
        mDfustarter.setScope(DfuServiceInitiator.SCOPE_APPLICATION);

        UIhandler.post(new Runnable() {
            @Override
            public void run() {
                mDfuProgressText.setText(getString(R.string.dfu_starting));
            }
        });

            mDfustarter.start(getActivity(), DfuService.class);
    }

and getting:

E FATAL EXCEPTION: main
Process: com.application, PID: 6846
android.app.RemoteServiceException$ForegroundServiceDidNotStartInTimeException: Context.startForegroundService() did not then call Service.startForeground(): ServiceRecord{f55800f u0 com.application/.DfuService}
at android.app.ActivityThread.generateForegroundServiceDidNotStartInTimeException(ActivityThread.java:2273)
at android.app.ActivityThread.throwRemoteServiceException(ActivityThread.java:2244)
at android.app.ActivityThread.-$$Nest$mthrowRemoteServiceException(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2538)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loopOnce(Looper.java:222)
at android.os.Looper.loop(Looper.java:314)
at android.app.ActivityThread.main(ActivityThread.java:8671)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:565)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1081)
Caused by: android.app.StackTrace: Last startServiceCommon() call for this service was made here
at android.app.ContextImpl.startServiceCommon(ContextImpl.java:1963)
at android.app.ContextImpl.startForegroundService(ContextImpl.java:1917)
at android.content.ContextWrapper.startForegroundService(ContextWrapper.java:841)
at no.nordicsemi.android.dfu.DfuServiceInitiator.start(SourceFile:876)
at com.application.feature.DeviceDFUFrag.runDfuOnDevice(SourceFile:399)
at com.application.feature.DeviceDFUFrag.access$2000(SourceFile:73)
at com.application.feature.DeviceDFUFrag$10.run(SourceFile:511)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:644)
at java.lang.Thread.run(Thread.java:1012)

same code worked on previous android versions and  previous dfu library version

[Hieu]

Hi asaf,

What version of Android and DFU library were you using previously?

The particular error message you are facing is really quite descriptive about what the issue is and what the corrective action should be. Have you tried to do it?

See also: android - Context.startForegroundService() did not then call Service.startForeground() - Stack Overflow

Hieu

[asaf]

I used dfu version 1.1.0 and android 12.

It seems like in the dfu Library there is the DFUBaseService class calling startForground service method, it changed in the android 14 so it need to be updated.

Found a workaround that I don't know if it is the correct way to operate the DFU but I have set the dfu initiator object not to work on the foreground, but i suspect it currpting the DFU process.

[Hieu]

Are you sure your copy of the DFU Library isn't modified? I checked v2.0.1 of the Android DFU Library and startForeground() is still called in DFUBaseService.java. It is pretty much the same way as it was in v1.11.0.

There are some changes in Android 14 regarding Foreground Service, but none seem to cause the issue in your opening post.

The Android DFU Library does work in background mode as well, not just foreground. There shouldn't be any data corruption just because the service is done in the background instead.

[asaf]

Yes , startForground called the same way, but in android 14 google change the policy for invoke that method.

[Hieu]

Are you saying there are some difficulties with complying with the new requirements in Android 14, and you remove startForeground() because of that?

[asaf]

I didn't modified the DFU library, I just set "false" to initiator to run in the foreground .

if I won't do that it will compile but give the FATAL EXCEPTION as in the original post right after the DFU is completed.

[Hieu]

Do you mean with DfuServiceInitiator.setForeground(false)?

Can you check with a debugger that when the service is run in the foreground, these happen?

1. startAsForegroundService is true in DfuServiceController.start()
   https://github.com/NordicSemiconductor/Android-DFU-Library/blob/v.2.0.1/lib_dfu/src/main/java/no/nordicsemi/android/dfu/DfuServiceInitiator.java#L802 
2. startForeground() is called in onHandleIntent() in your subclass of DfuBaseService.
   https://github.com/NordicSemiconductor/Android-DFU-Library/blob/v.2.0.1/lib_dfu/src/main/java/no/nordicsemi/android/dfu/DfuBaseService.java#L1142