Hi, I have a doubt, How do we call an interface method in fragment from parent activity in kotlin. When I try to do that it says the interface object must be initialised

Please share code example

I created an interface in mainactivity

interface onProductsChangedListner{
        fun updateProductList(products:List<Product>)
}

and implemented the same in a fragment

class GalleryFragment: Fragment(),MainActivity.onProductsChangedListner {
    override fun updateProductList(products: List<Product>) {
        this.products = products
        galleryAdapter.changeDataset(products)
    }

How do i call the interface methods from main activity?

How do you call method from activity?

I tried doing this

var productChangedListner: onProductsChangedListner
productChangedListner.updateProductList(products)

But looks like you try to access the same property that initializing (also, where is equals between type and assignment)

Im implementing the interface in fragment

And? Maybe could you just post screenshot from your IDE with error message and your code. Because your code snippet above is just syntactically wrong

I figured it out. I guess it was syntactically wrong. Thank you for pointingthat out