recyclerview-layout

问题 I am trying to archive this functionality for my grocery app https://imgur.com/Ugj4BIO But I am failed to do so! I am showing you what I am able to archive. if you have any Better Solution let me know. Here is my Json code from which I am fetching my data from web server right now its localhost {"cats": [{"sub_cats": [{ "sub_id":"1", "sub_title":"Charger", "sub_img":"http:\/\/localhost\/adminPohanch\/public\/img\/img23.jpg" }, { "sub_id":"2", "sub_title":"Dummy", "sub_img":"https:\/\

问题 I am using a RecyclerView to display movie posters in a Gridlayout. My goal is to save the position of the user, so when they rotate the phone it will save their position. movieGrid.scrollToPosition(10); That line of code has been the only line of code that works to go to a position other than the top when the phone rotates. I have tried layoutManager.scrollToPositionWithOffset(position[0], position[1]); But it didnt work. This is the complete code for my MainActivity.java public class

问题 I have two different types of objects (ex: User and Student) both having different properties. User: Title, description; Student: Title, description, USN; Is there a way using which I can display two users first and then students on the recycler view using same adapter? How do I display it even if it's two adapters. I dont' want two recycler views. Please note that the example given is very simple. The change is not just in UI. If the change is just in UI, then getItemViewType() can be used

问题 I have two views in my RecyclerView single item , two RelativeLayout s, at some point I am flipping both RelativeLayouts , I am rotating the LayoutA from 0 to 180 degree, and the same time I does rotating the LayoutB from -180 to 0 , so will get a flipping feel. It works perfect, but when there is no space in screen (ex: for the last item of RecyclerView ) then I am getting the weird effect, before starting this flip Animation LayoutB(which is hidden initially) expands and hides then

问题 This question already has answers here : RecyclerView items with big empty space after 23.2.0 (4 answers) Closed 3 years ago . After update my support libraries 23.2.1, I encountered a problem. Even I didn't change any code only library update, my recyclerview item's become not shown. Only first item shown, others not shown. I have no idea why it is not show all elements. Is there anybody encounters this problem and how to fix it? Before library update After library update Note: Unfortunaley

问题 This question already has answers here : Fragment is not being replaced but put on top of the previous one (15 answers) Closed last year . As can be observed by the gif when scrolled the the eariler child remain in the place this started code worked well when used in the activity but when placed in fragment this issue occurs. Below are files any suggestion or change is much appreciated. Main2.java public class Main2 extends AppCompatActivity { String Tag="Main2"; @Override protected void

问题 I am using Recycler View for creating a list of items and I am getting a duplicate items in the list. I have passed a list of 30 size into the Recycler View Adapter. The created list has 30 items but there are only 3 unique items, all other are repetition of 3 unique items. I am not able to find the bug. public class CollectionAdapter extends RecyclerView.Adapter<CollectionAdapter.CollectionViewHolder> { private List<CollectionDataTypeModel> mDataSet = new ArrayList<CollectionDataTypeModel>()

问题 I have four type of different data with different view type like the below image . but that is not a problem problem is the data will came from different api. My question is how to combine them in a single adapter because i need to use lazy loading .so I cant load whole data at a time so i need to call the different type of api like : goallist api , aprisaList api , post Api etc. When user scroll. any one can give me a idea with example . How can i handle that ? Also when user will scroll it

问题 How can I limit the number of items displayed by the RecyclerView ? I can limit the amount inserted it if I override getChildCount , but that causes it to only insert that number and then stop. I want it to keep inserting/scrolling, but only display X number of items. (Note: The height of each item can differ, so it's important that the limit is based on quantity rather than some hard coded value.) 回答1: Inside your Recyclerview's adapter class; private final int limit = 10; @Override public

问题 I had extended recyclerview so i can scale it. It works the way I wanted it but now I wanted to programmatically scroll by x amount of pixels. The user story for this is that, if I tap on the upper half part of the screen, it should scroll by x amount of pixel, same goes to the lower half part of the screen. Here's what I did: Activity: @Override public boolean dispatchTouchEvent(MotionEvent event) { // if(mComicViewerFragment != null) // mComicViewerFragment.consumeEvent(event);