Java tutorial
/* * Copyright (C) 2014 Michell Bak * * 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.miz.mizuu.fragments; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.database.DataSetObserver; import android.graphics.Bitmap; import android.os.Bundle; import android.preference.PreferenceManager; import android.support.v4.app.Fragment; import android.support.v7.widget.Toolbar; import android.text.Editable; import android.text.Html; import android.text.TextUtils.TruncateAt; import android.text.TextWatcher; import android.view.KeyEvent; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.view.ViewGroup.LayoutParams; import android.view.WindowManager; import android.view.inputmethod.EditorInfo; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.AdapterView.OnItemSelectedListener; import android.widget.BaseAdapter; import android.widget.EditText; import android.widget.GridView; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.ListView; import android.widget.ProgressBar; import android.widget.Spinner; import android.widget.SpinnerAdapter; import android.widget.TextView; import android.widget.TextView.OnEditorActionListener; import android.widget.Toast; import com.miz.abstractclasses.ApiService; import com.miz.apis.thetvdb.TvShow; import com.miz.base.MizActivity; import com.miz.functions.AsyncTask; import com.miz.functions.MizLib; import com.miz.mizuu.MizuuApplication; import com.miz.mizuu.R; import com.miz.service.IdentifyTvShowEpisodeService; import com.miz.utils.TypefaceUtils; import com.squareup.picasso.Picasso; import java.util.ArrayList; import java.util.Collections; import java.util.Comparator; import java.util.HashSet; import java.util.List; import java.util.Locale; import static com.miz.functions.PreferenceKeys.LANGUAGE_PREFERENCE; public class IdentifyTvShowEpisodeFragment extends Fragment { private ListView mListView; private EditText mQuery; private Spinner mSpinner; private ProgressBar mProgress; private Picasso mPicasso; private Bitmap.Config mConfig; private String mShowId, mShowTitle, mLocale; private ArrayList<String> mFilepaths; private ListAdapter mAdapter; private LanguageAdapter mSpinnerAdapter; private TvShowSearch mTvShowSearch; private Toolbar mToolbar; /** * Empty constructor as per the Fragment documentation */ public IdentifyTvShowEpisodeFragment() { } public static IdentifyTvShowEpisodeFragment newInstance(ArrayList<String> filepaths, String showTitle, String showId) { IdentifyTvShowEpisodeFragment frag = new IdentifyTvShowEpisodeFragment(); Bundle args = new Bundle(); args.putStringArrayList("filepaths", filepaths); args.putString("showTitle", showTitle); args.putString("showId", showId); frag.setArguments(args); return frag; } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setRetainInstance(true); // Hide the keyboard getActivity().getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN); mFilepaths = getArguments().getStringArrayList("filepaths"); mShowId = getArguments().getString("showId"); mShowTitle = getArguments().getString("showTitle"); mPicasso = MizuuApplication.getPicasso(getActivity()); mConfig = MizuuApplication.getBitmapConfig(); mAdapter = new ListAdapter(getActivity()); } @Override public void onResume() { super.onResume(); if (mAdapter != null) mAdapter.notifyDataSetChanged(); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { return inflater.inflate(R.layout.identify_movie_and_tv_show, container, false); } public void onViewCreated(View v, Bundle savedInstanceState) { super.onViewCreated(v, savedInstanceState); mToolbar = (Toolbar) v.findViewById(R.id.toolbar); ((MizActivity) getActivity()).setSupportActionBar(mToolbar); mListView = (ListView) v.findViewById(R.id.listView1); mQuery = (EditText) v.findViewById(R.id.editText1); mSpinner = (Spinner) v.findViewById(R.id.spinner1); mProgress = (ProgressBar) v.findViewById(R.id.progressBar1); mListView.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) { updateShow(arg2); } }); mListView.setEmptyView(v.findViewById(R.id.no_results)); v.findViewById(R.id.no_results).setVisibility(View.GONE); // Manually make it gone to begin with mSpinner.setOnItemSelectedListener(new OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { mLocale = mSpinnerAdapter.getItem(position).getLanguage(); searchForShows(); } @Override public void onNothingSelected(AdapterView<?> parent) { } }); mSpinnerAdapter = new LanguageAdapter(); mSpinner.setAdapter(mSpinnerAdapter); String language = PreferenceManager.getDefaultSharedPreferences(getActivity()) .getString(LANGUAGE_PREFERENCE, "en"); mSpinner.setSelection(mSpinnerAdapter.getIndexForLocale(language)); mQuery.setText(mShowTitle); mQuery.setSelection(mQuery.length()); mQuery.addTextChangedListener(new TextWatcher() { @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { } @Override public void onTextChanged(CharSequence s, int start, int before, int count) { } @Override public void afterTextChanged(Editable s) { if (s.toString().length() > 0) searchForShows(); else { mTvShowSearch.cancel(true); mAdapter.clearItems(); mAdapter.notifyDataSetChanged(); } } }); mQuery.setOnEditorActionListener(new OnEditorActionListener() { @Override public boolean onEditorAction(TextView v, int actionId, KeyEvent event) { if (actionId == EditorInfo.IME_NULL && event.getAction() == KeyEvent.ACTION_DOWN || actionId == EditorInfo.IME_ACTION_SEARCH) searchForShows(); return true; } }); if (mTvShowSearch == null) { if (MizLib.isOnline(getActivity())) { mTvShowSearch = new TvShowSearch(getActivity(), mQuery.getText().toString()); } else { Toast.makeText(getActivity(), getString(R.string.noInternet), Toast.LENGTH_SHORT).show(); } } } private void searchForShows() { if (MizLib.isOnline(getActivity())) { if (!mQuery.getText().toString().isEmpty()) { mTvShowSearch.cancel(true); mTvShowSearch = new TvShowSearch(getActivity(), mQuery.getText().toString()); } else { mAdapter.notifyDataSetChanged(); } } else { Toast.makeText(getActivity(), getString(R.string.noInternet), Toast.LENGTH_SHORT).show(); } } private void updateShow(int id) { if (MizLib.isOnline(getActivity())) { Toast.makeText(getActivity(), getString(R.string.updatingShowInfo), Toast.LENGTH_LONG).show(); Intent identifyService = new Intent(getActivity(), IdentifyTvShowEpisodeService.class); Bundle b = new Bundle(); b.putString("oldShowId", mShowId); b.putString("newShowId", mAdapter.getItem(id).getId()); b.putString("language", getSelectedLanguage()); b.putStringArrayList("filepaths", mFilepaths); identifyService.putExtras(b); getActivity().startService(identifyService); getActivity().setResult(Activity.RESULT_OK); getActivity().finish(); } else Toast.makeText(getActivity(), getString(R.string.noInternet), Toast.LENGTH_SHORT).show(); } private String getSelectedLanguage() { return mLocale; } protected class TvShowSearch extends AsyncTask<Void, Boolean, Boolean> { private final Context mContext; private final String mQueryText; private ArrayList<Result> mResults = new ArrayList<Result>(); public TvShowSearch(Context context, String query) { mContext = context; mQueryText = query; // Execute the AsyncTask execute(); } @Override protected void onPreExecute() { showProgressBar(); } @Override protected Boolean doInBackground(Void... params) { try { if (isCancelled()) return false; ApiService<TvShow> service = MizuuApplication.getTvShowService(mContext); List<TvShow> results = service.search(mQueryText, getSelectedLanguage()); if (isCancelled()) return false; // TheTVDb always includes the English entry for a show, // so this can result in duplicates. We don't want that. HashSet<String> addedIds = new HashSet<String>(); int count = results.size(); for (int i = 0; i < count; i++) { if (!addedIds.contains(results.get(i).getId())) { mResults.add(new Result(results.get(i).getTitle(), results.get(i).getOriginalTitle(), results.get(i).getId(), results.get(i).getCoverUrl(), results.get(i).getDescription(), results.get(i).getFirstAired(), results.get(i).getRating())); addedIds.add(results.get(i).getId()); } } return !isCancelled(); } catch (Exception e) { } return false; } @Override protected void onPostExecute(Boolean result) { if (!result) return; hideProgressBar(); if (mQuery.getText().toString().length() > 0) { if (mListView.getAdapter() == null) { mAdapter = new ListAdapter(mContext); mAdapter.setList(mResults); mListView.setAdapter(mAdapter); } else { mAdapter.setList(mResults); mAdapter.notifyDataSetChanged(); } } } } static class ViewHolder { TextView title, originalTitle, release, description; ImageView cover; LinearLayout layout; } public class ListAdapter extends BaseAdapter { private LayoutInflater inflater; private final Context mContext; private int mItemHeight = 0; private GridView.LayoutParams mImageViewLayoutParams; private ArrayList<Result> mItems = new ArrayList<Result>(); public ListAdapter(Context context) { mContext = context; inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE); mImageViewLayoutParams = new ListView.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT); } public void setList(ArrayList<Result> list) { mItems = new ArrayList<Result>(list); } public void clearItems() { mItems.clear(); } public int getCount() { return mItems.size(); } // create a new ImageView for each item referenced by the Adapter public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder; if (convertView == null) { convertView = inflater.inflate(R.layout.list_item_movie_and_tv_show, parent, false); holder = new ViewHolder(); holder.title = (TextView) convertView.findViewById(R.id.movieTitle); holder.description = (TextView) convertView.findViewById(R.id.textView7); holder.description.setMaxLines(3); holder.description.setEllipsize(TruncateAt.END); holder.release = (TextView) convertView.findViewById(R.id.textReleaseDate); holder.originalTitle = (TextView) convertView.findViewById(R.id.originalTitle); holder.cover = (ImageView) convertView.findViewById(R.id.cover); holder.layout = (LinearLayout) convertView.findViewById(R.id.cover_layout); holder.title.setTypeface(TypefaceUtils.getRobotoCondensedRegular(getActivity())); holder.release.setTypeface(TypefaceUtils.getRobotoLightItalic(getActivity())); holder.description.setTypeface(TypefaceUtils.getRobotoLightItalic(getActivity())); // Check the height matches our calculated column width if (holder.layout.getLayoutParams().height != mItemHeight) { holder.layout.setLayoutParams(mImageViewLayoutParams); } convertView.setTag(holder); } else { holder = (ViewHolder) convertView.getTag(); } final Result result = getItem(position); holder.title.setText(result.getTitle()); holder.release.setText(result.getRelease()); holder.description.setVisibility(View.VISIBLE); if (!result.getDescription().isEmpty()) holder.description.setText(result.getDescription()); else { if (!mItems.get(position).getRating().equals("0.0")) { try { int rating = (int) (Double.parseDouble(mItems.get(position).getRating()) * 10); holder.description.setText(Html .fromHtml(getString(R.string.detailsRating) + ": " + rating + "<small> %</small>")); } catch (NumberFormatException e) { holder.description.setVisibility(View.GONE); } } else { holder.description.setVisibility(View.GONE); } } if (result.hasOriginalTitle() && result.hasDifferentTitles()) { holder.originalTitle.setVisibility(View.VISIBLE); holder.originalTitle.setText(result.getOriginalTitle()); } else { holder.originalTitle.setVisibility(View.GONE); } mPicasso.load(result.getImage()).placeholder(R.drawable.gray).error(R.drawable.loading_image) .config(mConfig).into(holder.cover); return convertView; } @Override public Result getItem(int position) { return mItems.get(position); } @Override public long getItemId(int position) { return 0; } @Override public boolean hasStableIds() { return true; } } public class Result { private final String mTitle, mOriginalTitle, mId, mImage, mDescription, mRelease, mRating; public Result(String title, String originalTitle, String id, String image, String description, String release, String rating) { mTitle = title; mOriginalTitle = originalTitle; mId = id; mImage = image; mDescription = description; mRelease = MizLib.getPrettyDate(getActivity(), release); mRating = rating; } public String getTitle() { return mTitle; } public boolean hasDifferentTitles() { return !mTitle.equals(mOriginalTitle); } public boolean hasOriginalTitle() { return !mOriginalTitle.isEmpty(); } public String getOriginalTitle() { return "(" + mOriginalTitle + ")"; } public String getId() { return mId; } public String getImage() { return mImage; } public String getDescription() { return mDescription; } public String getRelease() { if (mRelease.equals("null")) return getString(R.string.unknownYear); return mRelease; } public String getRating() { return mRating; } } public class LanguageAdapter implements SpinnerAdapter { private ArrayList<Locale> mLocales = new ArrayList<Locale>(); private final Locale[] mSystemLocales; private final LayoutInflater mInflater; public LanguageAdapter() { mInflater = LayoutInflater.from(getActivity()); mSystemLocales = Locale.getAvailableLocales(); String[] languageCodes = Locale.getISOLanguages(); ArrayList<Locale> mTemp = new ArrayList<Locale>(); for (String code : languageCodes) { if (code.length() == 2) { // We're only interested in two character codes Locale l = new Locale(code); if (hasLocale(l)) mTemp.add(l); } } Collections.sort(mTemp, new Comparator<Locale>() { @Override public int compare(Locale lhs, Locale rhs) { return lhs.getDisplayLanguage(Locale.getDefault()) .compareToIgnoreCase(rhs.getDisplayLanguage(Locale.getDefault())); } }); mLocales = new ArrayList<Locale>(mTemp); } private boolean hasLocale(Locale l) { for (Locale locale : mSystemLocales) if (locale.equals(l)) return true; return false; } public int getIndexForLocale(String locale) { for (int i = 0; i < mLocales.size(); i++) if (mLocales.get(i).getLanguage().equalsIgnoreCase(locale)) return i; return 0; } @Override public void registerDataSetObserver(DataSetObserver observer) { } @Override public void unregisterDataSetObserver(DataSetObserver observer) { } @Override public int getCount() { return mLocales.size(); } @Override public Locale getItem(int position) { return mLocales.get(position); } @Override public long getItemId(int position) { return position; } @Override public boolean hasStableIds() { return true; } @Override public View getView(int position, View convertView, ViewGroup parent) { if (convertView == null) { convertView = mInflater.inflate(android.R.layout.simple_spinner_item, parent, false); } ((TextView) convertView).setText(mLocales.get(position).getDisplayLanguage(Locale.getDefault())); return convertView; } @Override public int getItemViewType(int position) { return 0; } @Override public int getViewTypeCount() { return 1; } @Override public boolean isEmpty() { return mLocales.size() == 0; } @Override public View getDropDownView(int position, View convertView, ViewGroup parent) { if (convertView == null) { convertView = mInflater.inflate(android.R.layout.simple_spinner_dropdown_item, parent, false); } ((TextView) convertView).setText(mLocales.get(position).getDisplayLanguage(Locale.getDefault())); return convertView; } } private void showProgressBar() { mListView.setVisibility(View.GONE); mProgress.setVisibility(View.VISIBLE); } private void hideProgressBar() { mListView.setVisibility(View.VISIBLE); mProgress.setVisibility(View.GONE); } }