I need to share a single database between 2 apps. I know that the database will be created on /data/data/MY_PACKAGE/databases/ . Since the packages names are different is it possible to define the path to one package name when I create the database on either app? Thanks. Answer UPDATE: The method described below relies on … Read more
Already asked here but without a proper answer. I want the FAB to float on top of the keyboard. that’s it. For example Open a new Blank Activity template project with Android Studio Change the Hello World TextView to EditText See image below: Answer Turns out it’s pretty easy, Add android:windowSoftInputMode=”adjustResize” to your activity in … Read more
I’m using below method to download single image from url public static Bitmap getBitmap(String url) { try { InputStream is = (InputStream) new URL(url).getContent(); Bitmap d = BitmapFactory.decodeStream(is); is.close(); return d; } catch (Exception e) { return null; } } Sometimes I get an outofmemory exception. I am unable to catch outofmemory exception. The app … Read more
In my projects I am using BroadcastReceivers as a callback from a long running thread (eg. notify the activity that a download was finished and send some response data from a Worker Thread so that the activity can display the appropriate message to the user..). To use BroadcastReceivers I have to be careful to register … Read more
I’m trying to smoothly scroll to last element of a list after adding an element to the arrayadapter associated with the listview. The problem is that it just scrolls to a random position arrayadapter.add(item); //DOES NOT WORK CORRECTLY: listview.smoothScrollToPosition(arrayadapter.getCount()-1); //WORKS JUST FINE: listview.setSelection(arrayadapter.getCount()-1); Answer You probably want to tell the ListView to post the scroll … Read more
I have a requirement for obtaining the hardware related information on an Android device that runs my application. I need information of the following sort. CPU Manufacturer, model and serial number SD Card Manufacturer and serial number Camera Manufacturer and other related specs Bluetooth related hardware information WiFi related hardware information RAM Vendor / model … Read more
So I have an activity with RecyclerView and I want to change TextView of every item in the RecyclerView by pressing button that has onClickListener() in the activity. I’m wondering what is better in terms of performance: Use notifyDataSetChanged ones. Use loop with condition like int i is less than List.size() where notifyItemChanged would be … Read more
How do I fill an ArrayList with objects, with each object inside being different? Answer ArrayList<Matrices> list = new ArrayList<Matrices>(); list.add( new Matrices(1,1,10) ); list.add( new Matrices(1,2,20) ); AttributionSource : Link , Question Author : Samuel , Answer Author : Aaron Saunders
I want to create a customized ListView (or similar) which will behave like a closed (circular) one: scrolling down – after the last item was reached the first begins (.., n-1, n, 1, 2, ..) scrolling upward – after the first item was reached the last begins (.., 2, 1, n, n-1, ..) It sounds … Read more
There are many tutorials online for adding voice recognition to an android app. They are often confusing and the publishers of the coding are never available for questions. I need a basic overview of how to add voice recognition to my app (as an answer, not a link). Answer If you want to add voice … Read more
