proton-mail-android/app/src/main/java/ch/protonmail/android/activities/fragments/BaseFragment.java

/*
 * Copyright (c) 2022 Proton AG
 *
 * This file is part of Proton Mail.
 *
 * Proton Mail is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Proton Mail is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Proton Mail. If not, see https://www.gnu.org/licenses/.
 */
package ch.protonmail.android.activities.fragments;

import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ProgressBar;

import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;

import butterknife.BindView;
import butterknife.ButterKnife;
import butterknife.Unbinder;
import ch.protonmail.android.R;

public abstract class BaseFragment extends Fragment {

    @Nullable
    @BindView(R.id.progress_circular)
    ProgressBar mProgressBar;

    private Unbinder unbinder;

    /**
     * Return the id of the fragment layout resource file.
     *
     * @return the layout id of the fragment UI.
     */
    protected abstract int getLayoutResourceId();

    public abstract String getFragmentKey();

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        // create the root view
        View rootView = inflater.inflate(getLayoutResourceId(), container, false);
        // inject all other views via ButterKnife
        unbinder = ButterKnife.bind(this, rootView);

        return rootView;
    }

    @Override
    public void onDestroyView() {
        super.onDestroyView();
        unbinder.unbind();
    }
}