Java tutorial
/* * Copyright (c) 2015 Fabio Berta * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package ch.berta.fabio.popularmovies.presentation.ui.fragments; import android.content.Intent; import android.os.Bundle; import android.support.annotation.NonNull; import android.support.v4.app.ActivityOptionsCompat; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentActivity; import android.support.v4.view.ViewCompat; import android.view.View; import ch.berta.fabio.popularmovies.R; import ch.berta.fabio.popularmovies.utils.Utils; /** * Provides an abstract base class for the display of movies in a grid of posters. */ public abstract class MovieGridBaseFragment extends Fragment { public static final int REQUEST_MOVIE_DETAILS = 1; static final String STATE_VIEW_MODEL = "STATE_VIEW_MODEL"; static final String KEY_VIEW_MODEL = "KEY_VIEW_MODEL"; private static final String LOG_TAG = MovieGridBaseFragment.class.getSimpleName(); boolean mUseTwoPane; public MovieGridBaseFragment() { // required empty constructor } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); mUseTwoPane = getResources().getBoolean(R.bool.use_two_pane_layout); } @Override public void onViewCreated(View view, Bundle savedInstanceState) { super.onViewCreated(view, savedInstanceState); setupRecyclerView(); } protected abstract void setupRecyclerView(); final int getLayoutWidth() { int screenWidth = Utils.getScreenWidth(getResources()); return mUseTwoPane ? screenWidth / 100 * getResources().getInteger(R.integer.two_pane_list_width_percentage) : screenWidth; } final void startDetailsActivity(@NonNull Intent intent, @NonNull View posterSharedElement) { final FragmentActivity activity = getActivity(); final String transitionName = getString(R.string.shared_transition_details_poster); ViewCompat.setTransitionName(posterSharedElement, transitionName); final ActivityOptionsCompat options = ActivityOptionsCompat.makeSceneTransitionAnimation(activity, posterSharedElement, transitionName); activity.startActivityForResult(intent, REQUEST_MOVIE_DETAILS, options.toBundle()); } }