Java tutorial
/* * Copyright (C) 2014 The Android Open Source Project * * 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 com.hackday.andy.jztv; import android.content.Intent; import android.graphics.drawable.Drawable; import android.os.Bundle; import android.support.v17.leanback.app.BackgroundManager; import android.support.v17.leanback.app.DetailsFragment; import android.support.v17.leanback.widget.Action; import android.support.v17.leanback.widget.ArrayObjectAdapter; import android.support.v17.leanback.widget.ClassPresenterSelector; import android.support.v17.leanback.widget.DetailsOverviewRow; import android.support.v17.leanback.widget.DetailsOverviewRowPresenter; import android.support.v17.leanback.widget.HeaderItem; import android.support.v17.leanback.widget.ImageCardView; import android.support.v17.leanback.widget.ListRow; import android.support.v17.leanback.widget.ListRowPresenter; import android.support.v17.leanback.widget.OnActionClickedListener; import android.support.v17.leanback.widget.OnItemViewClickedListener; import android.support.v17.leanback.widget.Presenter; import android.support.v17.leanback.widget.Row; import android.support.v17.leanback.widget.RowPresenter; import android.support.v4.app.ActivityOptionsCompat; import android.util.DisplayMetrics; import android.util.Log; import android.widget.Toast; import com.bumptech.glide.Glide; import com.bumptech.glide.load.resource.drawable.GlideDrawable; import com.bumptech.glide.request.animation.GlideAnimation; import com.bumptech.glide.request.target.SimpleTarget; import java.util.Collections; import java.util.List; /* * LeanbackDetailsFragment extends DetailsFragment, a Wrapper fragment for leanback details screens. * It shows a detailed view of video and its meta plus related videos. */ public class VideoDetailsFragment extends DetailsFragment { private static final String TAG = "VideoDetailsFragment"; private static final int ACTION_WATCH_TRAILER = 1; private static final int ACTION_RENT = 2; private static final int ACTION_BUY = 3; private static final int DETAIL_THUMB_WIDTH = 274; private static final int DETAIL_THUMB_HEIGHT = 274; private static final int NUM_COLS = 10; private Movie mSelectedMovie; private ArrayObjectAdapter mAdapter; private ClassPresenterSelector mPresenterSelector; private BackgroundManager mBackgroundManager; private Drawable mDefaultBackground; private DisplayMetrics mMetrics; @Override public void onCreate(Bundle savedInstanceState) { Log.d(TAG, "onCreate DetailsFragment"); super.onCreate(savedInstanceState); prepareBackgroundManager(); mSelectedMovie = (Movie) getActivity().getIntent().getSerializableExtra(DetailsActivity.MOVIE); if (mSelectedMovie != null) { setupAdapter(); setupDetailsOverviewRow(); setupDetailsOverviewRowPresenter(); setupMovieListRow(); setupMovieListRowPresenter(); updateBackground(mSelectedMovie.getBackgroundImageUrl()); setOnItemViewClickedListener(new ItemViewClickedListener()); } else { Intent intent = new Intent(getActivity(), MainActivity.class); startActivity(intent); } } @Override public void onStop() { super.onStop(); } private void prepareBackgroundManager() { mBackgroundManager = BackgroundManager.getInstance(getActivity()); mBackgroundManager.attach(getActivity().getWindow()); mDefaultBackground = getResources().getDrawable(R.drawable.default_background); mMetrics = new DisplayMetrics(); getActivity().getWindowManager().getDefaultDisplay().getMetrics(mMetrics); } protected void updateBackground(String uri) { Glide.with(getActivity()).load(uri).centerCrop().error(mDefaultBackground) .into(new SimpleTarget<GlideDrawable>(mMetrics.widthPixels, mMetrics.heightPixels) { @Override public void onResourceReady(GlideDrawable resource, GlideAnimation<? super GlideDrawable> glideAnimation) { mBackgroundManager.setDrawable(resource); } }); } private void setupAdapter() { mPresenterSelector = new ClassPresenterSelector(); mAdapter = new ArrayObjectAdapter(mPresenterSelector); setAdapter(mAdapter); } /* * * * */ private void setupDetailsOverviewRow() { Log.d(TAG, "doInBackground: " + mSelectedMovie.toString()); final DetailsOverviewRow row = new DetailsOverviewRow(mSelectedMovie); row.setImageDrawable(getResources().getDrawable(R.drawable.default_background)); int width = Utils.convertDpToPixel(getActivity().getApplicationContext(), DETAIL_THUMB_WIDTH); int height = Utils.convertDpToPixel(getActivity().getApplicationContext(), DETAIL_THUMB_HEIGHT); Glide.with(getActivity()).load(mSelectedMovie.getCardImageUrl()).centerCrop() .error(R.drawable.default_background).into(new SimpleTarget<GlideDrawable>(width, height) { @Override public void onResourceReady(GlideDrawable resource, GlideAnimation<? super GlideDrawable> glideAnimation) { Log.d(TAG, "details overview card image url ready: " + resource); row.setImageDrawable(resource); mAdapter.notifyArrayItemRangeChanged(0, mAdapter.size()); } }); row.addAction(new Action(ACTION_WATCH_TRAILER, getResources().getString(R.string.watch_trailer_1), getResources().getString(R.string.watch_trailer_2))); row.addAction(new Action(ACTION_RENT, getResources().getString(R.string.rent_1), getResources().getString(R.string.rent_2))); row.addAction(new Action(ACTION_BUY, getResources().getString(R.string.buy_1), getResources().getString(R.string.buy_2))); mAdapter.add(row); } /* * * detailsPresenter ? * */ private void setupDetailsOverviewRowPresenter() { // Set detail background and style. DetailsOverviewRowPresenter detailsPresenter = new DetailsOverviewRowPresenter( new DetailsDescriptionPresenter()); detailsPresenter.setBackgroundColor(getResources().getColor(R.color.selected_background)); detailsPresenter.setStyleLarge(true); // Hook up transition element. detailsPresenter.setSharedElementEnterTransition(getActivity(), DetailsActivity.SHARED_ELEMENT_NAME); detailsPresenter.setOnActionClickedListener(new OnActionClickedListener() { @Override public void onActionClicked(Action action) { // PlaybackOverlayActivity if (action.getId() == ACTION_WATCH_TRAILER) { Intent intent = new Intent(getActivity(), PlayerActivity.class); intent.putExtra(DetailsActivity.MOVIE, mSelectedMovie); startActivity(intent); } else { Toast.makeText(getActivity(), action.toString(), Toast.LENGTH_SHORT).show(); } } }); mPresenterSelector.addClassPresenter(DetailsOverviewRow.class, detailsPresenter); } private void setupMovieListRow() { String subcategories[] = { getString(R.string.related_movies) }; List<Movie> list = MovieList.list; Collections.shuffle(list); ArrayObjectAdapter listRowAdapter = new ArrayObjectAdapter(new CardPresenter()); for (int j = 0; j < NUM_COLS; j++) { listRowAdapter.add(list.get(j % 1)); } HeaderItem header = new HeaderItem(0, subcategories[0]); mAdapter.add(new ListRow(header, listRowAdapter)); } private void setupMovieListRowPresenter() { mPresenterSelector.addClassPresenter(ListRow.class, new ListRowPresenter()); } private final class ItemViewClickedListener implements OnItemViewClickedListener { @Override public void onItemClicked(Presenter.ViewHolder itemViewHolder, Object item, RowPresenter.ViewHolder rowViewHolder, Row row) { if (item instanceof Movie) { Movie movie = (Movie) item; Log.d(TAG, "Item: " + item.toString()); Intent intent = new Intent(getActivity(), DetailsActivity.class); intent.putExtra(getResources().getString(R.string.movie), mSelectedMovie); intent.putExtra(getResources().getString(R.string.should_start), true); startActivity(intent); Bundle bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(getActivity(), ((ImageCardView) itemViewHolder.view).getMainImageView(), DetailsActivity.SHARED_ELEMENT_NAME).toBundle(); getActivity().startActivity(intent, bundle); } } } }