What is the method to automatically refresh the activity content upon selecting an item on the bottom sheet?

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One common method is to use the notifyDataSetChanged() method of the adapter associated with the activity content. This method notifies the adapter that the underlying data has changed, and triggers a refresh of the activity content.

To implement this, you would need to do the following:

1. Create a bottom sheet with a RecyclerView and set up its adapter.
2. When an item on the bottom sheet is selected, update the underlying data that the activity content is based on.
3. Call notifyDataSetChanged() on the adapter of the activity content's RecyclerView.

Here's some sample code to illustrate:

// In the activity's onCreate method
RecyclerView recyclerView = findViewById(R.id.my_recycler_view);
MyAdapter adapter = new MyAdapter(data);
recyclerView.setAdapter(adapter);

// In the bottom sheet's onItemClick method
data.add(newItem); // Update the underlying data
adapter.notifyDataSetChanged(); // Refresh the activity content