com.dogtim.recommendation.MainFragment.java Source code

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Here is the source code for com.dogtim.recommendation.MainFragment.java

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/*
 * 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.dogtim.recommendation;

import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.TaskStackBuilder;
import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.support.v17.leanback.app.BackgroundManager;
import android.support.v17.leanback.app.BrowseFragment;
import android.support.v17.leanback.widget.ArrayObjectAdapter;
import android.support.v17.leanback.widget.HeaderItem;
import android.support.v17.leanback.widget.ListRow;
import android.support.v17.leanback.widget.ListRowPresenter;
import android.support.v17.leanback.widget.OnItemViewClickedListener;
import android.support.v17.leanback.widget.OnItemViewSelectedListener;
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.NotificationCompat;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import android.widget.Toast;

import com.squareup.picasso.Picasso;
import com.squareup.picasso.Target;

import java.net.URI;
import java.util.Collections;
import java.util.List;
import java.util.Timer;
import java.util.TimerTask;

public class MainFragment extends BrowseFragment {
    private static final String TAG = "MainFragment";

    private static final int BACKGROUND_UPDATE_DELAY = 300;
    private static final int GRID_ITEM_WIDTH = 200;
    private static final int GRID_ITEM_HEIGHT = 200;
    private static final int NUM_ROWS = 6;
    private static final int NUM_COLS = 15;

    private ArrayObjectAdapter mRowsAdapter;
    private Drawable mDefaultBackground;
    private Target mBackgroundTarget;
    private DisplayMetrics mMetrics;
    private Timer mBackgroundTimer;
    private final Handler mHandler = new Handler();
    private URI mBackgroundURI;
    Movie mMovie;
    CardPresenter mCardPresenter;

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        Log.i(TAG, "onCreate");
        super.onActivityCreated(savedInstanceState);

        prepareBackgroundManager();

        setupUIElements();

        loadRows();

        setupEventListeners();
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        if (null != mBackgroundTimer) {
            Log.d(TAG, "onDestroy: " + mBackgroundTimer.toString());
            mBackgroundTimer.cancel();
        }
    }

    private void loadRows() {
        List<Movie> list = MovieList.setupMovies();

        mRowsAdapter = new ArrayObjectAdapter(new ListRowPresenter());
        mCardPresenter = new CardPresenter();

        int i;
        for (i = 0; i < NUM_ROWS; i++) {
            if (i != 0) {
                Collections.shuffle(list);
            }
            ArrayObjectAdapter listRowAdapter = new ArrayObjectAdapter(mCardPresenter);
            for (int j = 0; j < NUM_COLS; j++) {
                listRowAdapter.add(list.get(j % 5));
            }
            HeaderItem header = new HeaderItem(i, MovieList.MOVIE_CATEGORY[i]);
            mRowsAdapter.add(new ListRow(header, listRowAdapter));
        }

        HeaderItem gridHeader = new HeaderItem(i, "PREFERENCES");

        GridItemPresenter mGridPresenter = new GridItemPresenter();
        ArrayObjectAdapter gridRowAdapter = new ArrayObjectAdapter(mGridPresenter);
        gridRowAdapter.add(getResources().getString(R.string.grid_view));
        gridRowAdapter.add(getString(R.string.error_fragment));
        gridRowAdapter.add(getResources().getString(R.string.personal_settings));
        mRowsAdapter.add(new ListRow(gridHeader, gridRowAdapter));

        setAdapter(mRowsAdapter);

    }

    private void prepareBackgroundManager() {

        BackgroundManager backgroundManager = BackgroundManager.getInstance(getActivity());
        backgroundManager.attach(getActivity().getWindow());
        mBackgroundTarget = new PicassoBackgroundManagerTarget(backgroundManager);

        mDefaultBackground = getResources().getDrawable(R.drawable.default_background);

        mMetrics = new DisplayMetrics();
        getActivity().getWindowManager().getDefaultDisplay().getMetrics(mMetrics);
    }

    private void setupUIElements() {
        // setBadgeDrawable(getActivity().getResources().getDrawable(
        // R.drawable.videos_by_google_banner));
        setTitle(getString(R.string.browse_title)); // Badge, when set, takes precedent
        // over title
        setHeadersState(HEADERS_ENABLED);
        setHeadersTransitionOnBackEnabled(true);

        // set fastLane (or headers) background color
        setBrandColor(getResources().getColor(R.color.fastlane_background));
        // set search icon color
        setSearchAffordanceColor(getResources().getColor(R.color.search_opaque));
    }

    private void setupEventListeners() {
        setOnSearchClickedListener(new View.OnClickListener() {

            @Override
            public void onClick(View view) {
                Toast.makeText(getActivity(), "Implement your own in-app search", Toast.LENGTH_LONG).show();
            }
        });

        setOnItemViewClickedListener(new ItemViewClickedListener());
        setOnItemViewSelectedListener(new ItemViewSelectedListener());
    }

    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(DetailsActivity.MOVIE, movie);
                    
                Bundle bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(
                      getActivity(),
                      ((ImageCardView) itemViewHolder.view).getMainImageView(),
                      DetailsActivity.SHARED_ELEMENT_NAME).toBundle();
                getActivity().startActivity(intent, bundle);*/
                //createRecommendation();
                openPlayStore();
            } else if (item instanceof String) {
                if (((String) item).indexOf(getString(R.string.error_fragment)) >= 0) {
                    Intent intent = new Intent(getActivity(), BrowseErrorActivity.class);
                    startActivity(intent);
                } else {
                    Toast.makeText(getActivity(), ((String) item), Toast.LENGTH_SHORT).show();
                }
            }
        }
    }

    private void openPlayStore() {
        Intent launchIntent = getActivity().getPackageManager().getLaunchIntentForPackage("com.android.vending");
        launchIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
        startActivity(launchIntent);
    }

    private void openAppDownloadPage() {
        final String appPackageName = "com.example.haha";
        try {
            startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("market://details?id=" + appPackageName)));
        } catch (android.content.ActivityNotFoundException anfe) {
            startActivity(new Intent(Intent.ACTION_VIEW,
                    Uri.parse("https://play.google.com/store/apps/details?id=" + appPackageName)));
        }
    }

    private void createRecommendation() {

        NotificationManager mNotificationManager = (NotificationManager) getActivity()
                .getSystemService(Context.NOTIFICATION_SERVICE);
        Notification notification = buildNotification();
        mNotificationManager.notify(1, notification);
    }

    private Notification buildNotification() {
        PendingIntent intent = buildPendingIntent();
        Bundle extras = new Bundle();
        extras.putString("haha", "1234");
        Notification notification = new NotificationCompat.BigPictureStyle(
                new NotificationCompat.Builder(getActivity()).setAutoCancel(true).setContentTitle("Title")
                        .setContentText("Description").setLocalOnly(true).setOngoing(true)
                        .setColor(getResources().getColor(R.color.fastlane_background))
                        .setCategory(Notification.CATEGORY_RECOMMENDATION).setContentIntent(intent)
                        .setExtras(extras)).build();

        Log.d(TAG, "Building notification - " + this.toString());

        return notification;

    }

    private PendingIntent buildPendingIntent() {
        Intent detailsIntent = new Intent();

        TaskStackBuilder stackBuilder = TaskStackBuilder.create(getActivity());
        stackBuilder.addNextIntent(detailsIntent);

        return stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);
    }

    private final class ItemViewSelectedListener implements OnItemViewSelectedListener {
        @Override
        public void onItemSelected(Presenter.ViewHolder itemViewHolder, Object item,
                RowPresenter.ViewHolder rowViewHolder, Row row) {
            if (item instanceof Movie) {
                mBackgroundURI = ((Movie) item).getBackgroundImageURI();
                startBackgroundTimer();
            }

        }
    }

    protected void setDefaultBackground(Drawable background) {
        mDefaultBackground = background;
    }

    protected void setDefaultBackground(int resourceId) {
        mDefaultBackground = getResources().getDrawable(resourceId);
    }

    protected void updateBackground(URI uri) {
        Picasso.with(getActivity()).load(uri.toString()).resize(mMetrics.widthPixels, mMetrics.heightPixels)
                .centerCrop().error(mDefaultBackground).into(mBackgroundTarget);
    }

    protected void updateBackground(Drawable drawable) {
        BackgroundManager.getInstance(getActivity()).setDrawable(drawable);
    }

    protected void clearBackground() {
        BackgroundManager.getInstance(getActivity()).setDrawable(mDefaultBackground);
    }

    private void startBackgroundTimer() {
        if (null != mBackgroundTimer) {
            mBackgroundTimer.cancel();
        }
        mBackgroundTimer = new Timer();
        mBackgroundTimer.schedule(new UpdateBackgroundTask(), BACKGROUND_UPDATE_DELAY);
    }

    private class UpdateBackgroundTask extends TimerTask {

        @Override
        public void run() {
            mHandler.post(new Runnable() {
                @Override
                public void run() {
                    if (mBackgroundURI != null) {
                        updateBackground(mBackgroundURI);
                    }
                }
            });

        }
    }

    private class GridItemPresenter extends Presenter {
        @Override
        public ViewHolder onCreateViewHolder(ViewGroup parent) {
            TextView view = new TextView(parent.getContext());
            view.setLayoutParams(new ViewGroup.LayoutParams(GRID_ITEM_WIDTH, GRID_ITEM_HEIGHT));
            view.setFocusable(true);
            view.setFocusableInTouchMode(true);
            view.setBackgroundColor(getResources().getColor(R.color.default_background));
            view.setTextColor(Color.WHITE);
            view.setGravity(Gravity.CENTER);
            return new ViewHolder(view);
        }

        @Override
        public void onBindViewHolder(ViewHolder viewHolder, Object item) {
            ((TextView) viewHolder.view).setText((String) item);
        }

        @Override
        public void onUnbindViewHolder(ViewHolder viewHolder) {
        }
    }

}