Java tutorial
/* * Copyright 2015, Tanmay Parikh * * 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.tanmay.blip.fragments; import android.content.DialogInterface; import android.content.Intent; import android.net.Uri; import android.os.Bundle; import android.support.annotation.Nullable; import android.support.v4.app.Fragment; import android.support.v4.widget.SwipeRefreshLayout; import android.support.v7.app.AppCompatActivity; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.widget.ImageView; import android.widget.TextView; import com.afollestad.materialdialogs.MaterialDialog; import com.squareup.okhttp.OkHttpClient; import com.squareup.picasso.OkHttpDownloader; import com.squareup.picasso.Picasso; import com.tanmay.blip.BlipApplication; import com.tanmay.blip.R; import com.tanmay.blip.activities.AboutActivity; import com.tanmay.blip.activities.ImageActivity; import com.tanmay.blip.activities.SearchActivity; import com.tanmay.blip.database.DatabaseManager; import com.tanmay.blip.models.Comic; import com.tanmay.blip.utils.BlipUtils; import com.tanmay.blip.utils.SpeechSynthesizer; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Locale; public class RandomFragment extends Fragment implements View.OnClickListener, SwipeRefreshLayout.OnRefreshListener { private TextView title, date, alt; private ImageView img, favourite; private View browser, transcript, imgContainer, share, explain; private SwipeRefreshLayout swipeRefreshLayout; private DatabaseManager databaseManager; private SimpleDateFormat simpleDateFormat; private Comic comic; @Nullable @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View rootView = inflater.inflate(R.layout.fragment_random, container, false); setHasOptionsMenu(true); swipeRefreshLayout = (SwipeRefreshLayout) rootView.findViewById(R.id.swipeRefresh); title = (TextView) rootView.findViewById(R.id.title); date = (TextView) rootView.findViewById(R.id.date); alt = (TextView) rootView.findViewById(R.id.alt); img = (ImageView) rootView.findViewById(R.id.img); favourite = (ImageView) rootView.findViewById(R.id.favourite); browser = rootView.findViewById(R.id.open_in_browser); transcript = rootView.findViewById(R.id.transcript); imgContainer = rootView.findViewById(R.id.img_container); share = rootView.findViewById(R.id.share); explain = rootView.findViewById(R.id.help); browser.setOnClickListener(this); transcript.setOnClickListener(this); imgContainer.setOnClickListener(this); favourite.setOnClickListener(this); share.setOnClickListener(this); explain.setOnClickListener(this); databaseManager = new DatabaseManager(getActivity()); simpleDateFormat = new SimpleDateFormat("MMMM dd, yyyy (EEEE)", Locale.getDefault()); OkHttpClient picassoClient = BlipApplication.getInstance().client.clone(); picassoClient.interceptors().add(BlipUtils.REWRITE_CACHE_CONTROL_INTERCEPTOR); new Picasso.Builder(getActivity()).downloader(new OkHttpDownloader(picassoClient)).build(); int num = 0; if (savedInstanceState != null) num = savedInstanceState.getInt("NUM"); loadComic(num); swipeRefreshLayout.setColorSchemeResources(R.color.accent); swipeRefreshLayout.setOnRefreshListener(this); return rootView; } private void loadComic(int num) { int random; if (num == 0) { random = BlipUtils.randInt(1, databaseManager.getMax()); } else { random = num; } comic = databaseManager.getComic(random); title.setText(comic.getNum() + ". " + comic.getTitle()); Calendar calendar = Calendar.getInstance(); calendar.set(Calendar.YEAR, Integer.parseInt(comic.getYear())); calendar.set(Calendar.MONTH, Integer.parseInt(comic.getMonth()) - 1); calendar.set(Calendar.DAY_OF_MONTH, Integer.parseInt(comic.getDay())); date.setText(simpleDateFormat.format(calendar.getTime())); alt.setText(comic.getAlt()); Picasso.with(getActivity()).load(comic.getImg()).error(R.drawable.error_network).into(img); if (comic.isFavourite()) { favourite.setColorFilter(getResources().getColor(R.color.accent)); } else { favourite.setColorFilter(getResources().getColor(R.color.icons_dark)); } swipeRefreshLayout.setRefreshing(false); } @Override public void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); outState.putInt("NUM", comic.getNum()); } @Override public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { super.onCreateOptionsMenu(menu, inflater); inflater.inflate(R.menu.menu_random, menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { if (item.getItemId() == R.id.random) { loadComic(0); return true; } else if (item.getItemId() == R.id.search) { startActivity(new Intent(getActivity(), SearchActivity.class)); return true; } else if (item.getItemId() == R.id.about) { startActivity(new Intent(getActivity(), AboutActivity.class)); } return super.onOptionsItemSelected(item); } @Override public void onClick(View v) { switch (v.getId()) { case R.id.open_in_browser: Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://xkcd.com/" + comic.getNum())); startActivity(intent); break; case R.id.transcript: String content = comic.getTranscript(); if (content.equals("")) { content = getResources().getString(R.string.message_no_transcript); } final String speakingContent = content; new MaterialDialog.Builder(getActivity()).title(R.string.title_dialog_transcript).content(content) .negativeText(R.string.negative_text_dialog).neutralText(R.string.neutral_text_dialog_speak) .autoDismiss(false).callback(new MaterialDialog.ButtonCallback() { @Override public void onNegative(MaterialDialog dialog) { super.onNegative(dialog); dialog.dismiss(); } @Override public void onNeutral(MaterialDialog dialog) { super.onNeutral(dialog); SpeechSynthesizer.getInstance().convertToSpeechFlush(speakingContent); } }).dismissListener(new DialogInterface.OnDismissListener() { @Override public void onDismiss(DialogInterface dialog) { SpeechSynthesizer.getInstance().stopSpeaking(); } }).show(); break; case R.id.img_container: ImageActivity.launch((AppCompatActivity) getActivity(), img, comic.getNum()); break; case R.id.favourite: boolean fav = comic.isFavourite(); comic.setFavourite(!fav); databaseManager.setFavourite(comic.getNum(), !fav); if (fav) { //remove from fav favourite.setColorFilter(getResources().getColor(R.color.icons_dark)); } else { //make fav favourite.setColorFilter(getResources().getColor(R.color.accent)); } break; case R.id.help: Intent explainIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.explainxkcd.com/wiki/index.php/" + comic.getNum())); startActivity(explainIntent); break; case R.id.share: Intent shareIntent = new Intent(android.content.Intent.ACTION_SEND); shareIntent.setType("text/plain"); if (BlipUtils.isLollopopUp()) { shareIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_DOCUMENT); } else { shareIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET); } shareIntent.putExtra(Intent.EXTRA_SUBJECT, comic.getTitle()); shareIntent.putExtra(Intent.EXTRA_TEXT, comic.getImg()); startActivity(Intent.createChooser(shareIntent, getActivity().getResources().getString(R.string.tip_share_image_url))); break; } } @Override public void onRefresh() { loadComic(0); } }