android-architecture-components | Architecture Components MVVM Data Binding | Model View Controller library

I added some new code to my recyclerView which deletes the item when swiped either to the left or right, but when I move to a different activity, and then come back to my recyclerView activity, the items reappear. Here is the code of my MainActivity(called TestGroceryList):

I used this link for pass parameter to ViewModel constructor when pass one parameter no problem

I am using paging library to load data and populate my recyclerview which is placed inside a nestedscrollview. But it is like, pagination works automatically until all the data fetched from API. I know this is because of the nestedscrollview. But unfortunately my layout needs scrollview as i have a top section other than recyclerview in this fragment. This is my layout

I am trying to integrate Collapsing layout with Navigation Advanced example

What I tried?

Added Collapsing bar layout to main_actvity.xml

We try to update sqlite_sequence with the following code.

Current situation:

• There is only one activity called MainActivity.
• MainActivity maintains the NavHostFragment.
• There is a WebViewFragment which embeded a WebView inside.
• Thera are many other fragment controlled by NavHostFragment.

What troubles me:

I can forward web pages inside WebView, but when I press back to go back inside the WebView, the NavController handle's it, pop the fragment away. Since the WebView is inside a fragment not an activity, which means there is not method called onBackPressed() to override.

Reference:

• See NavigationBasicSample@github
• See Getting start with Navigation@android developer home

I have read Room Persistence Library. I also clone android-architecture-components then I try to add Mirgration test. However, I cannot import

I am following the architecture used by GithubBrowserSample by Google. But facing troubles while building the project.

I have migrated the project to AndroidX. I have tried many answers available on StackOverflow without success. Here is the build exception I am facing while building:

How can I add Fragment Change Listener in new Navigation Component?

I have a BottomNavigationView in which I used new Navigation Component following official sample

I have four destinations in my BottomNavigationView, all of them have their navigation graphs.