android-recyclerview

问题 I am developing a job estimation app which stores information in a room database and holds a reference to it via a RecyclerView which user can use to access the data and make changes if needed. I am retrieving a reference to the information using Live Data via a view model with Observer method inside a Fragment. This information is stored in a database when the user completes a form and presses the save button. Currently I have developed two standard adapters, with different data sets and

问题 I am developing a job estimation app which stores information in a room database and holds a reference to it via a RecyclerView which user can use to access the data and make changes if needed. I am retrieving a reference to the information using Live Data via a view model with Observer method inside a Fragment. This information is stored in a database when the user completes a form and presses the save button. Currently I have developed two standard adapters, with different data sets and

问题 i add a recyclerView to Fragment but it doesn't show any thing in side the fragment i found many questions for the same problem but actually i avoid those errors i Toast messages From Every method in Adapter and it shows data normal in Toast here is my Code StoresList Class public class StoresList { String storeName,storeImage,storeId; public StoresList(String storeId,String storeName, String storeImage) { this.storeName = storeName; this.storeImage = storeImage; this.storeId=storeId; }

问题 Sometimes RecyclerView shows empty spaces at bottom if the screen is large or it has fewer items to cover the screen. Also sometimes it shows some items partially if it has more items. What I want is: RecyclerView will cover the full available space with the given number of rows. It will always fill the screen, no matter what is the size of the screen. How can I do that? 回答1: use match_parent for both width and height. 回答2: I'm posting my solution now for any future questioner. Here, by the

问题 I have a 2 step question here: 1) How do I display a time slider UI which scrolls horizontally upon touch in a 24-hour format? 2) How do I divide it into a 24 hour format with each slot consisting of a 1 hour slot each? The time slot is divided into hourly increments, such that only 8 hours are visible at a time ( but it's actually a 24 hour time slider which scrolls horizontally) Also, I am planning to make it such that based on the start and end time returned by the JSON I am using, it

问题 I am trying to achieve an infinite/circular recyclerview, Here's the implementation of the Adapter class. public class MyAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> { private static final String TAG = MyAdapter.class.getSimpleName(); private static final int VIEW_TYPE_NORMAL = 1; private static final int VIEW_TYPE_GAP = 2; private Context mContext; private final List<ChannelInfo> mChannelInfoList; private LinearTunerClickListener mClickListener; public MyAdapter( Context

问题 i have a recycler view with custom layout manager ( its a twowayview staggeredgridview layout manager https://github.com/lucasr/twoway-view/blob/master/layouts/src/main/java/org/lucasr/twowayview/widget/StaggeredGridLayoutManager.java ) i am using this to display list of Images. These images are loaded asynchronously, meaning ,when the items becomes active, i decode image data and then load that bitmap onto these list item views. now, problem is whenever i set image bitmap onto an item's

问题 I am using recyclerview to display messages in a chat window. However, when a new message is being edited, the recycler view focus should be on the last element. I expect there would be some way to shift the focus of a recyclerview to last element instead of first. 回答1: use recyclerView.smoothScrollToPosition(position); position is your index of last item inserted. This will move your the RecyclerView focus on the last element. 回答2: Use can add any of the two lines on your LinearLayoutManager

问题 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 for my adapter : public class StoreAdapter extends RecyclerView.Adapter<StoreAdapter.BindingHolder> { List<Store> mStoreList; public class BindingHolder extends RecyclerView.ViewHolder { private ViewDataBinding binding; public BindingHolder(View v) { super(v); binding = DataBindingUtil.bind(v); } public ViewDataBinding getBinding() { return binding; } }

问题 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 for my adapter : public class StoreAdapter extends RecyclerView.Adapter<StoreAdapter.BindingHolder> { List<Store> mStoreList; public class BindingHolder extends RecyclerView.ViewHolder { private ViewDataBinding binding; public BindingHolder(View v) { super(v); binding = DataBindingUtil.bind(v); } public ViewDataBinding getBinding() { return binding; } }