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SOFTWARE LICENSE ---------------- Copyright (C) 2012, 2013, 2014 Younghyung Cho. <yhcting77@gmail.com> All rights reserved. This file is part of FeedHive This program is licensed under the FreeBSD l...
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/****************************************************************************** * Copyright (C) 2012, 2013, 2014/*from w ww . ja v a2s . c om*/ * Younghyung Cho. <yhcting77@gmail.com> * All rights reserved. * * This file is part of FeedHive * * This program is licensed under the FreeBSD license * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * The views and conclusions contained in the software and documentation * are those of the authors and should not be interpreted as representing * official policies, either expressed or implied, of the FreeBSD Project. *****************************************************************************/ package free.yhc.feeder; import java.util.HashMap; import java.util.SortedSet; import java.util.TreeSet; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.content.res.Configuration; import android.database.Cursor; import android.database.DatabaseUtils; import android.os.Bundle; import android.text.Editable; import android.text.TextWatcher; import android.util.AttributeSet; import android.view.View; import android.widget.AdapterView; import android.widget.AdapterView.OnItemSelectedListener; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.CheckBox; import android.widget.EditText; import android.widget.LinearLayout; import android.widget.ListView; import android.widget.ResourceCursorAdapter; import android.widget.Spinner; import android.widget.TextView; import free.yhc.feeder.db.DB; import free.yhc.feeder.db.DBPolicy; import free.yhc.feeder.model.AssetSQLiteHelper; import free.yhc.feeder.model.Environ; import free.yhc.feeder.model.UnexpectedExceptionHandler; import free.yhc.feeder.model.Utils; public class PredefinedChannelActivity extends Activity implements UnexpectedExceptionHandler.TrackedModule { private static final boolean DBG = false; private static final Utils.Logger P = new Utils.Logger(PredefinedChannelActivity.class); public static final String KEY_URLS = "urls"; public static final String KEY_ICONURLS = "iconurls"; // ======================================================================== // // Constants for DB // These values SHOULD MATCH asset DB. // // ======================================================================== private static final int DB_VERSION = 13; private static final String DB_NAME = "predefined_channels.db"; private static final String DB_ASSET = "channels.db"; private static final String DB_TABLE = "channels"; private static final String DB_COL_ID = "_id"; private static final String DB_COL_TITLE = "title"; private static final String DB_COL_DESC = "description"; private static final String DB_COL_URL = "url"; private static final String DB_COL_ICONURL = "iconurl"; // country code value defined by "ISO 3166-1 alpha-3" private static final String DB_COL_CCODE = "countrycode"; private static final String DB_COL_STATE = "state"; private static final String[] sDbColCategories = new String[] {"category0", "category1", "category2", "category3", "category4"}; private static final String[] sListCursorProj = new String[] { DB_COL_ID, DB_COL_TITLE, DB_COL_DESC, DB_COL_URL, DB_COL_ICONURL, sDbColCategories[0], sDbColCategories[1], sDbColCategories[2], sDbColCategories[3], sDbColCategories[4], DB_COL_STATE }; // ======================================================================== // Members // ======================================================================== private final DBPolicy mDbp = DBPolicy.get(); // Variables set only once. private AssetSQLiteHelper mAssetDB = null; private HashMap<Long, ChanInfo> mChanMap = new HashMap<Long, ChanInfo>(); // Runtime variable private String prevCategory = ""; private String prevSearch = ""; public static class ListRow extends LinearLayout { ChanInfo chaninfo = new ChanInfo(); public ListRow(Context context, AttributeSet attrs) { super(context, attrs); } } static class ChanInfo { String url = null; String iconurl = null; ChanInfo() { } ChanInfo(ChanInfo other) { url = other.url; iconurl = other.iconurl; } } private class ListAdapter extends ResourceCursorAdapter { public ListAdapter(Context context, int layout, Cursor c) { super(context, layout, c); } @Override public void bindView(View view, final Context context, final Cursor c) { ListRow row = (ListRow)view; TextView titlev = (TextView)view.findViewById(R.id.title); CheckBox checkv = (CheckBox)view.findViewById(R.id.checkbtn); titlev.setText(c.getString(c.getColumnIndex(DB_COL_TITLE))); row.chaninfo.url = c.getString(c.getColumnIndex(DB_COL_URL)); row.chaninfo.iconurl = c.getString(c.getColumnIndex(DB_COL_ICONURL)); // TODO // It's extremely weird !!! // "titlev.setFocusable(true)" / "titlev.setFocusable(false)" works exactly opposite // way against the way it should work!!! // // Current Status // "titlev.setFocusable(false)" => touch works for item. // "titlev.setFocusable(true)" => touch doesn't work for item. // // What happened to this!!! // Need to check this!!! // (I think this is definitely BUG of ANDROID FRAMEWORK!) // => This case is same with below "else" case too. if (mDbp.isDuplicatedChannelUrl(row.chaninfo.url)) { checkv.setVisibility(View.GONE); titlev.setTextColor(context.getResources().getColor(R.color.title_color_opened)); titlev.setFocusable(true); } else { checkv.setVisibility(View.VISIBLE); long id = c.getLong(c.getColumnIndex(DB_COL_ID)); checkv.setChecked(mChanMap.containsKey(id)); titlev.setTextColor(context.getResources().getColor(R.color.title_color_new)); titlev.setFocusable(false); } } } // ======================================================================== // DB Operations // ======================================================================== private String[] getCategories() { SortedSet<String> ss = new TreeSet<String>(); for (String col : sDbColCategories) { Cursor c = mAssetDB.sqlite().query(true, DB_TABLE, new String[] { col }, null, null, null, null, null, null); if (c.moveToFirst()) do { String cat = c.getString(0); if (!cat.isEmpty()) ss.add(cat); } while (c.moveToNext()); c.close(); } String[] cats = new String[ss.size() + 1]; // cats[0] is for 'all' cats[0] = getResources().getString(R.string.all); System.arraycopy(ss.toArray(new String[0]), 0, cats, 1, ss.size()); return cats; } private Cursor query(String category, String search) { String where = ""; if (!category.isEmpty()) { int i = 0; while (i < sDbColCategories.length) { where += sDbColCategories[i] + " = " + DatabaseUtils.sqlEscapeString(category); if (++i < sDbColCategories.length) where += " OR "; } } if (!search.isEmpty()) { if (!where.isEmpty()) where = "(" + where + ") AND "; where += DB.buildSQLWhere(DB_COL_TITLE, search); } // implement this. return mAssetDB.sqlite().query(DB_TABLE, sListCursorProj, where, null, null, null, DB_COL_TITLE); } /** * * @param category * empty : for all categories * @param search * empty : all channels. */ private void refreshList(String category, String search) { getAdapter().changeCursor(query(category, search)); } // ======================================================================== // // ======================================================================== private void requestRefreshList() { Environ.getUiHandler().post(new Runnable() { @Override public void run() { boolean needRefresh = false; String category = ""; String search = ""; Spinner sp = (Spinner)findViewById(R.id.sp_category); EditText et = (EditText)findViewById(R.id.editbox); if (0 != sp.getSelectedItemPosition()) category = (String)sp.getSelectedItem(); search = et.getText().toString(); if (!prevCategory.equals(category)) { prevCategory = category; needRefresh = true; } if (!prevSearch.equals(search)) { prevSearch = search; needRefresh = true; } if (needRefresh) refreshList(category, search); } }); } private void onCheck(long id, ChanInfo chaninfo, boolean isChecked) { if (isChecked) // NOTE // passed 'chaninfo' is reference of ChanInfo located at ListRow. // So, as list is scrolled, value is changed accordingly. // This is definitely NOT expected. // We need to fixed ChanInfo value here. // So, put cloned(deep-copied) value to hashmap. mChanMap.put(id, new ChanInfo(chaninfo)); else mChanMap.remove(id); } // ======================================================================== // For UI. // ======================================================================== private ListAdapter getAdapter() { return (ListAdapter)((ListView)findViewById(R.id.list)).getAdapter(); } private void setCategorySpinner(final Spinner sp) { final ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, getCategories()); adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); sp.setAdapter(adapter); sp.setSelection(0); // default is 'all' sp.setOnItemSelectedListener(new OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { requestRefreshList(); } @Override public void onNothingSelected(AdapterView<?> parent) { } }); } private void setSearchEdit(final EditText et) { et.addTextChangedListener(new TextWatcher() { @Override public void afterTextChanged(Editable s) { requestRefreshList(); } @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) {} @Override public void onTextChanged(CharSequence s, int start, int before, int count) {} }); } private void setListView(final ListView lv) { Cursor c = mAssetDB.sqlite().query(DB_TABLE, sListCursorProj, null, null, null, null, DB_COL_TITLE); lv.setAdapter(new ListAdapter(this, R.layout.predefined_channel_row, c)); lv.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { ListRow row = (ListRow)view; CheckBox cb = (CheckBox)view.findViewById(R.id.checkbtn); cb.setChecked(!cb.isChecked()); onCheck(id, row.chaninfo, cb.isChecked()); } }); } @Override public String dump(UnexpectedExceptionHandler.DumpLevel lv) { return "[ PredefinedChannelActivity ]"; } @Override public void onCreate(Bundle savedInstanceState) { UnexpectedExceptionHandler.get().registerModule(this); super.onCreate(savedInstanceState); mAssetDB = new AssetSQLiteHelper(DB_NAME, DB_ASSET, DB_VERSION); mAssetDB.open(); setContentView(R.layout.predefined_channel); setCategorySpinner((Spinner)findViewById(R.id.sp_category)); setSearchEdit((EditText)findViewById(R.id.editbox)); setListView((ListView)findViewById(R.id.list)); ((Button)findViewById(R.id.append)).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Intent intent = new Intent(); ChanInfo[] cis = mChanMap.values().toArray(new ChanInfo[0]); String[] urls = new String[cis.length]; String[] iconurls = new String[cis.length]; for (int i = 0 ; i < cis.length; i++) { urls[i] = cis[i].url; iconurls[i] = cis[i].iconurl; } intent.putExtra(KEY_URLS, urls); intent.putExtra(KEY_ICONURLS, iconurls); setResult(RESULT_OK, intent); finish(); } }); ((Button)findViewById(R.id.cancel)).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { setResult(RESULT_CANCELED); finish(); } }); } @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); // Do nothing! } @Override protected void onDestroy() { mAssetDB.close(); super.onDestroy(); UnexpectedExceptionHandler.get().unregisterModule(this); } }