How To Load Data In Recyclerview?

I am creating one Android app and trying to set the data in Recyclerview, I am using MVVM architecture pattern with kotlin, I can see data in logcat but when app loads I am not see

Solution 1:

First of all make sure you have layoutManager set on the RecyclerView.

The problem here is Your ProductAdapter never had the data . notifyDataSetChanged is not a magic stick to notify the adapter you modify/add/update the dataset and then You will call notifyDataSetChanged . that's how it works .

In your case You have movies list your adapter but you never assigned anything to it its always empty . There are several ways to it. Just to make it work You can have a method to add the data in your adapter and then notify it.

fun addData(data:List<MobileList>){
        movies.addAll(data)
        notifyDataSetChanged()
    }

Now when you get the data inside on change you call this method .

productViewModel.products.observe(this,{
       it?.let{ items ->
        adapter.addData(items)
       }
    })

This should work .

Update on type fix - Seems like your type is messed up . Why is your repo returns a object of MobileList? While you are using a list of MobileList in adapter . Your adapter should hold var movies = mutableListOf<Products>().

productViewModel.products.observe(this,{
       it?.let{ item ->
        adapter.addData(item.products)
       }
    })