Hi Mark,

Hope yare doing well.

In my application n number of IntentService are created and launched in parallelly. 
Any IntenetService is used to perform either db(sqlite) operation or network(retrofit) operation or both.

There is a situation when I need to stop or cancle all the IntenetService's if running and let any one of them running on choice.
Or stop, cancle all the IntenetService's if running and start the other service of choice.

I will also be uing the JobIntentService to defer the jobs if application is not in foreground for syncing all the data which will be implemented in phase two.

Should I replcae all IntenetService with JobIntentService and use Evernote android job. Although, all the jobs in queue will only be cancled.
But what about alreay running jobs? They won't be cancled in between?

minSdkVersion 22

Could you think of any possible soultion with current existing implementation or propose a new design approach without freezing the UI?

My application supports portrait mode only on Mobile and portrait, landscape for Tablet. I am setting not default portrait or lanscape in manifest. 

I am only declaring Activity with android:configChanges="orientation|screenSize in manifest.

However if the app running on device haapens to be table then I execute a conditional statement for tablet only as:

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        if (!isDeviceTablet()) {
            LoggerUtils.info(TAG, "isMobile: ");
            setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
        }
        super.onCreate(savedInstanceState);
    }

...

I used @Override
    public void onResume() {
        LoggerUtils.info(TAG, "onResume()::");
        super.onResume();
        if (!EventBus.getDefault().hasSubscriberForEvent(CancelEvent.class)) {
            EventBus.getDefault().register(this);
        } else {
            EventBus.getDefault().unregister(this);
            EventBus.getDefault().register(this);
        }

    }

I am fetching media from external camera using flash air sd card in dsrl camera.
I am using FetchMediaIntentService to fetch all the images one by one and show in a GalleryViewAdapter.

I post events from FetchMediaIntentService using EventBus to notify the GalleryViewActivity about newly fethced media(thumbnail), 
update previously fetched media(full version of thumbnail) which in turn calls notifyItemInserted or notifyItemChanged method of GalleryViewAdapter accordingly. 

I am receiving the images at bullet speed. EventBus also posts event at a very fast speed and while GalleryViewActivity tries to notify the GalleryViewAdapter sometimes the application crashes.

Fatal Exception: java.lang.IndexOutOfBoundsException
Inconsistency detected. Invalid view holder adapter positionViewHolder{574ebea position=94 id=-1, oldPos=0, pLpos:0 scrap [attachedScrap] tmpDetached no parent} com.afollestad.dragselectrecyclerview.DragSelectRecyclerView{890a74a VFED..... .F....I. 0,260-1080,1554 #7f0901b0 app:id/recycler_view}, adapter:somepackage.GalleryViewAdapter@5cbf6bb, layout:android.support.v7.widget.GridLayoutManager@ca737d8, context:somepackage.GalleryViewActivity@d54a1ce

I understand that
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