How to use public method in fragment-CodePudding

i am making a call blocker. I'm trying to run a code that works in an mainActivity in a fragment.

    @Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
    switch (requestCode) {
        case PERMISSION_REQUEST_READ_PHONE_STATE: {
            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                Toast.makeText(getActivity(), "Permission granted"  PERMISSION_REQUEST_READ_PHONE_STATE , Toast.LENGTH_SHORT).show();

            } else {
                Toast.makeText(getActivity(), "Permission NOT granted: "   PERMISSION_REQUEST_READ_PHONE_STATE, Toast.LENGTH_SHORT).show();
            }

            return;
        }
    }
}

onCreateView=

   @Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    // Inflate the layout for this fragment
    View view = inflater.inflate(R.layout.fragment_call, container, false);

    if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M) {
        if (getActivity().checkSelfPermission(Manifest.permission.READ_PHONE_STATE) == PackageManager.PERMISSION_DENIED || getActivity().checkSelfPermission(Manifest.permission.CALL_PHONE) == PackageManager.PERMISSION_DENIED) {
            String[] permissions = {Manifest.permission.READ_PHONE_STATE, Manifest.permission.CALL_PHONE};
            requestPermissions(permissions, PERMISSION_REQUEST_READ_PHONE_STATE);
        }
    }

    onRequestPermissionsResult();

    return view;
}

the problem is public void onRequestPermissionsResult There is a line above it, when I hover over it, "onRequestPermissionsResult" shows this message. I tried several methods and ways, I hope someone can help me solve it.

CodePudding user response：

Is that Activity hosting your Fragment? If that's the case, you can use getActivity() in your Fragment and cast it to MainActivity.

((MainActivity)getActivity()).onRequestPermissionsResult();

However, if that's not the case, please provide more details, as you should not try to access any activities to which your fragment's not related.