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problem with react component on Android 6

LucaLuca
in Android
Hello,

I programmed the board to turn on the LED when angular speed goes above a threshold. This is the code: 
Log.i(LOG_DATA_STREAM, "setupLedActivation started");
gyro.angularVelocity().addRouteAsync(new RouteBuilder() {
    @Override
    public void configure(RouteComponent source) {
        //source.split().index(0).filter(ThresholdOutput.ABSOLUTE,minAngularSpeed,1f).react(new RouteComponent.Action() {
        source.split().index(0).average((byte)3)
                .map(Function1.ABS_VALUE)
                .filter(ThresholdOutput.BINARY, minAngularSpeed, 10)
                .multicast()
                    .to()
                        .filter(Comparison.EQ, 1)
                            .react(new RouteComponent.Action() {
                                @Override
                                public void execute(DataToken token) {
                                    led.editPattern(Led.Color.GREEN, Led.PatternPreset.SOLID).commit();
                                    led.play();
                                }
                            })
                    .to().filter(Comparison.EQ, -1)
                        .react(new RouteComponent.Action() {
                            @Override
                            public void execute(DataToken token) {
                                led.stop(true);
                            }
                        });
    }
}).continueWith(
        new Continuation<Route, Void>() {
            @Override
            public Void then(Task<Route> task) throws Exception {
                if (task.isFaulted()) {
                    Log.e(LOG_DATA_STREAM, metawear.isConnected() ? "Error setting up route" : "Error connecting", task.getError());
                } else {
                    Log.i(LOG_DATA_STREAM, "setupLedActivation done");
                    onBoardRoute = task.getResult();
                    //debug = mwBoard.getModule(Debug.class);
                    //logging= mwBoard.getModule(Logging.class);
                }

                return null;
            }
        }
);
This works fine in Android 4.4, but on a different device with Android 6.0 it fails, with the following output in the Android Monitor:

12-29 16:56:49.545 10800-10800/it.beonsolutions.rehab_home I/DATA_STREAM: setupLedActivation started
12-29 16:56:50.002 10800-10968/it.beonsolutions.rehab_home E/DATA_STREAM: Error setting up route
  java.util.concurrent.TimeoutException: Creating data processor timed out
      at com.mbientlab.metawear.impl.DataProcessorImpl$1.run(DataProcessorImpl.java:129)
      at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:423)
      at java.util.concurrent.FutureTask.run(FutureTask.java:237)
      at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:269)
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
                                                                              at java.lang.Thread.run(Thread.java:818)
12-29 16:56:50.035 10800-11346/it.beonsolutions.rehab_home W/BluetoothGatt: Unhandled exception in callback
  java.lang.NullPointerException: Attempt to invoke interface method 'java.lang.Object java.util.Queue.poll()' on a null object reference
      at com.mbientlab.metawear.impl.DataProcessorImpl$2.onResponseReceived(DataProcessorImpl.java:138)
      at com.mbientlab.metawear.impl.JseMetaWearBoard$5.onMwNotifyCharChanged(JseMetaWearBoard.java:579)
      at com.mbientlab.metawear.android.BtleService$1.onCharacteristicChanged(BtleService.java:193)
      at android.bluetooth.BluetoothGatt$1.onNotify(BluetoothGatt.java:487)
      at android.bluetooth.IBluetoothGattCallback$Stub.onTransact(IBluetoothGattCallback.java:399)
      at android.os.Binder.execTransact(Binder.java:458)

Any help would be much appreciated.
Regards

Comments

  • EricEric
    • What version of the SDK are you running?
    • What board are you using?
      • What are the firmware and hardware revisions?
    • What Android devices are you testing with?
  • LucaLuca
    metaware SKD: 3.0.0

    for the board information, please see this screenshot:
    https://www.dropbox.com/s/ftx6ysedj7h3mxl/Screenshot_2018-01-03-10-00-08.png?dl=0

    Android device: Lenovo TB3-730X

    Thanks & Regards
    Luca
  • EricEric
    Are you using that device with both Android 4.4 and 6.0?  

    The code works fine on my Android x86 VM and Nexus 5.  Try using another Android device.
  • LucaLuca
    What are you using to run Android 6 on a VM? I'm tried to use VirtualBox but I'm having troubles. Can you point me to some instructions?
  • LucaLuca
    OK, I tried on another device running Android 6 and the code worked fine.

    Is there anything to do to understand the issue with the Lenovo tablet?
  • EricEric
    Based on the log output, it looks like the tablet needs more time to wait for a response from the remote device.  The latest Android SDK has an increased timeout period so I'd try updating your compile dependency.
  • LucaLuca
    I tried with 3.3.0 but then I get the following error during build:

    Error:Error converting bytecode to dex:
    Cause: Dex cannot parse version 52 byte code.
    This is caused by library dependencies that have been compiled using Java 8 or above.
    If you are using the 'java' gradle plugin in a library submodule add
    targetCompatibility = '1.7'
    sourceCompatibility = '1.7'
    to that submodule's build.gradle file.

    I tried to follow the suggested solution but then other issues arise. Please give the correct project setup for 3.3.0.

    Thanks and Regards
  • EricEric
    Read the project's README:
  • LucaLuca
    Thank you. I checked that page but passed by the little note about SDK 3.3.
  • LucaLuca
    Yes, upgrade did the job done!
    Thanks!
This discussion has been closed.