I have a RecyclerView inside a NestedScrollView that show some data downloaded asynchronously. The problem is that there is a significant lag when the items are initilized. After some tests I found...

I'm running this code with a Twitter handle I'm pretty sure doesn't exist in order to test error handling. The breakpoints on the Callback are never hit, neither for success nor failure. Any point...

I am working on an Android Application and trying to follow MVVM design pattern. I have a listView and the question is whether the Adapter should be part of the ViewModel class? What is the b...

I have a basic custom View which looks like this: public class CustomView extends RelativeLayout { private User user; private ImageView profilePicture; public CustomView(Context context) { ...

I have a simple RecyclerView where I show all the products from firebase but now I'd like to show them on a Carousel like this Library, the thing is that I have all on my ChooseProduct.java class a...

I am stuck in solving this problem. I have set tabs in fragment using TabLayout and ViewPager. The problem is when i move to next fragment and then i press back button i get empty tabs view. Here I...

There are quite a few discussions around this topic ViewPager PagerAdapter not updating the View Update ViewPager dynamically? Removing fragments from FragmentStatePagerAdapter I have tried v...

Is it possible to create a multiple view type in my adapter.. like adding a view for my header then below the header is a list. code snippet of my adapter : public class StoreAdapter extends Recyc...

I'm new in kotlin programming language,how to implement a list view in kotlin using base adapter in android. any one can help me.

I am trying to set a OnCheckedChangeListener to a CheckBox but my application exits in the run time. I also tried to set listeners for my TextView and I still get the same result. Can anyone help? ...

I am using following code to create a Dialog aleart box with lists item from studentNames ArrayList.I am creating this ArrayList by reading childfile array.But when this code runs it just display a...

I'm having hard time understanding working of view holder, here are my some question that could increase my understanding of viewholder: It is said that oncreateViewHolder returns viewholder objec...

I've got this activity, which holds a fragment. This fragment layout consists of a view pager with several fragments (two, actually). When the view pager is created, its adapter is created, getIte...

When I have to use a classic adapter with a ListView, I update my data in the ListView like this: myAdapter.swapArray(data); public swapArray(List<Data> data) { clear(); addAll(data...

Do Android adapters use Adapter Design pattern? The GoF design patterns book describes Adapter Design Pattern as The Adapter Pattern converts the interface of a class into another interface th...

I a using ViewPager with FragmentStatePageAdapter on my screen I have 5 pages which has lots of images and views. Currently I have mViewPager.setOffscreenPageLimit(1); so only current, previous and...

I'm making a music player application where I'm using a loader to load song data to the adapter which is to be shown using a RecyclerView. However, I'm getting this weird error of my adapter method...

What I'm trying to achieve is this: As you can see, there is a background image that appears slightly behind the first card in the RecyclerView. When the user scrolls, the background image, as ...

I have a custom ListView with my own adapter. I'm handling the click on a Button in my ListView's item, and I want the ListView to become invisible on this click. I have no idea how to get access ...

I am trying to test RecyclerView with AndroidJunit4, it is my test code: @Rule public ActivityTestRule<ProductListActivity> rule = new ActivityTestRule<>(ProductListActivity.class); ...

I have a requirement where I need to load thumbnails and a Text in ListView which gets set by the custom Adapter. The Thumbnails should be stored in a cache memory, for that I am using the Universa...

I need a RecyclerView like this: It should does: show 7 items per time (DONE) center the RecyclerView on the central visible item (DONE) when I scroll to right/left, the central item will be "...

I have a problem with showing first item selected at spinner dropdown menu. When spinner is first time initialized, row is filled with "nothing selected view" and when something is selected from th...

I have a listview that gets additional views added on request, that's maintained by a BaseAdapter. How can I maintain scroll position after the update? I know this has been asked a few times, but ...

I have a RecyclerView with multiple item view types so they are broken into separate ViewHolder classes. Before, when all the ViewHolders were in the same class as the RecyclerView Adapter, I could...