Java – How to call methods in fragment from adapter Android

I

need help, so I have a fragment that has a RecycleView and a button inside the RecycleView.

The clicked button must open the dialog already declared in the base fragment, so I just call openDialog(DIALOG_CHECK);

Now how do I call that dialog on my adapter, I’ve created a method in fragment and call it from the adapter and produce the error “Java lang null pointer”

Here is my code :

DeliveryFragment delivFrag = new DeliveryFragment();
holder.editButton.setOnClickListener(new View.OnClickListener() {
     @Override
     public void onClick(View v) {
         delivFrag.doEdit();
     }
});

in fragment

public void doEdit(){
   openDialog(DIALOG_EDIT_ITEM);
}

Update your adapter constructor to accept fragment as a parameter.

customAdapter = new CustomAdapter(myContext, android. R.layout.simple_list_item_1, getList, HomeFragment.this);

Adapter class:

public CustomAdapter(Context context, int id, HomeFragment fragment) {
    this.fragment = fragment;
}

Call adapter:

((FragmentName)fragment).methodName();