RecyclerAdapter | 简单易懂的 RecyclerView adapter 封装 | RecyclerView library

I am presenting a PagingSource returned by Room ORM on a PagingDataAdapter.

The RecyclerView is present on a Fragment -- I have two such fragments. When they are switched, they stop loading the items on next page and only placehodlers are shown on scrolling.

Please view these screen captures if it isn't clear what I mean--

• When I scroll without switching fragments, all the items are loaded
• When I switch Fragments before scrolling all the way down, the adapter stops loading new items

Relevant pieces of code (please ask if you would like to see some other part/file) -

The Fragment:

In my app I have one activity which has a RecyclerView adapter using a List of OrderItems

When a user clicks on an item, I pass the object from my RecyclerAdapter to my MainActivity to inflate a BottomSheetDialog

Im trying to load images in a RecyclerView element:

I am trying to make a simple app in which you have a list of elements in a RecyclerView, and if you click on any you can see it in more details. Im stuck in how to start the new activity from inside the RecyclerView. I have tried many solutions found here but noone of them worked.

My new Activity never starts (i never see the Toast message on GroupActivity) and the app gets stuck on a black screen, but the listener is getting triggered because i see the message inside the onClick function.

I have checked my new activity is inside the AndroidManifest.xml and that i have the setContentView on the new activity

My new Activity, GroupActivity.java:

If you look at the code below the ENERC_KCAL,FAT,FASAT,FAMS all of them has the same 3 parameters label, quantity and unit. I want to set the label and quantity value in my RecyclerAdapter to populate a recylerView.

RecyclerAdapter.

Here I registered Adapter for RecyclerView with CardView. The main problem is that he started doing mobile development quite recently and there is simply not enough knowledge.

I have come across a problem while trying to add a switch to each element of my recycler adapter. What I want to achieve is to have only ONE switch selected at a time, so whenever I check a switch every other switch should automatically be unchecked.

This is the recycler adapter code I am currently using:

Sorry forms English in I'm French

I have 3 class and 2 of them have ArrayList. Unfortunately, my object with the 2 ArrayList won't work. I use Java in Android Studio

First class : Panel :

I create a RecyclerView to show some test post for my app. But when i run my app i can see only the username and not the test post imageView when i have create on my resource file. I start learning today about RecyclerView and i have a lot of problems with this view.

NOTE: i don't want to show any image from any url for now, but only the image when i already save in my drawable folder. And i know when is not reason to add the getImageUrl method in the model but maybe i will need it in the production, and that's the reason when i don't remove this method

HomeActivity code: