Java tutorial
/******************************************************************************* * Copyright 2011, 2012, 2013 fanfou.com, Xiaoke, Zhang * * 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.fanfou.app.opensource; import android.annotation.SuppressLint; import android.content.Intent; import android.content.IntentFilter; import android.database.Cursor; import android.media.AudioManager; import android.net.Uri; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.os.Messenger; import android.os.Parcelable; import android.support.v4.view.ViewPager; import android.support.v4.view.ViewPager.OnPageChangeListener; import android.util.Log; import android.view.KeyEvent; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.AdapterView.OnItemLongClickListener; import android.widget.ListView; import com.fanfou.app.opensource.adapter.BaseCursorAdapter; import com.fanfou.app.opensource.adapter.MessageCursorAdapter; import com.fanfou.app.opensource.adapter.StatusCursorAdapter; import com.fanfou.app.opensource.adapter.ViewsAdapter; import com.fanfou.app.opensource.api.bean.Status; import com.fanfou.app.opensource.db.Contents.BasicColumns; import com.fanfou.app.opensource.db.Contents.DirectMessageInfo; import com.fanfou.app.opensource.db.Contents.StatusInfo; import com.fanfou.app.opensource.db.FanFouProvider; import com.fanfou.app.opensource.dialog.ConfirmDialog; import com.fanfou.app.opensource.service.Constants; import com.fanfou.app.opensource.service.DownloadService; import com.fanfou.app.opensource.service.FanfouServiceManager; import com.fanfou.app.opensource.service.NotificationService; import com.fanfou.app.opensource.ui.ActionBar; import com.fanfou.app.opensource.ui.ActionManager; import com.fanfou.app.opensource.ui.UIManager; import com.fanfou.app.opensource.ui.viewpager.TitlePageIndicator; import com.fanfou.app.opensource.ui.viewpager.TitleProvider; import com.fanfou.app.opensource.util.CommonHelper; import com.fanfou.app.opensource.util.IntentHelper; import com.fanfou.app.opensource.util.OptionHelper; import com.fanfou.app.opensource.util.SoundManager; import com.fanfou.app.opensource.util.ToastHelper; import com.handmark.pulltorefresh.library.PullToRefreshBase; import com.handmark.pulltorefresh.library.PullToRefreshBase.Mode; import com.handmark.pulltorefresh.library.PullToRefreshBase.OnLastItemVisibleListener; import com.handmark.pulltorefresh.library.PullToRefreshBase.OnRefreshListener2; import com.handmark.pulltorefresh.library.PullToRefreshListView; /** * @author mcxiaoke * @version 1.0 2011.05.31 * */ public class HomePage extends BaseActivity implements OnPageChangeListener, OnItemLongClickListener, TitleProvider, OnRefreshListener2<ListView>, OnLastItemVisibleListener, OnItemClickListener { /** * FetchService?? ?resultData?type?? */ @SuppressLint("HandlerLeak") @SuppressWarnings("deprecation") private class ResultHandler extends Handler { private final int requestPage; private final boolean doGetMore; public ResultHandler(final int page, final boolean getMore) { this.requestPage = page; this.doGetMore = getMore; } @Override public void handleMessage(final Message msg) { final Bundle bundle = msg.getData(); final int type = msg.arg1; switch (msg.what) { case Constants.RESULT_SUCCESS: final int count = bundle.getInt(Constants.EXTRA_COUNT); HomePage.this.views[this.requestPage].onRefreshComplete(); if (this.doGetMore) { HomePage.this.cursors[this.requestPage].requery(); } else { if (count > 0) { String toastSuffix = null; if (type == Constants.TYPE_STATUSES_HOME_TIMELINE) { toastSuffix = "???"; } else if (type == Constants.TYPE_STATUSES_MENTIONS) { toastSuffix = "?@?"; } else if (type == Constants.TYPE_DIRECT_MESSAGES_CONVERSTATION_LIST) { toastSuffix = "??"; } else if (type == Constants.TYPE_STATUSES_PUBLIC_TIMELINE) { toastSuffix = "???"; } if (AppContext.DEBUG) { Log.i(HomePage.TAG, "ResultHandler page:" + this.requestPage + " message: " + count + toastSuffix); } showToast(count + toastSuffix); if (HomePage.this.soundEffect) { SoundManager.playSound(1, 0); } HomePage.this.cursors[this.requestPage].requery(); // listViews[requestPage].setSelection(0); } } break; case Constants.RESULT_ERROR: HomePage.this.views[this.requestPage].onRefreshComplete(); final String errorMessage = bundle.getString(Constants.EXTRA_ERROR); final int errorCode = bundle.getInt(Constants.EXTRA_CODE); if (AppContext.DEBUG) { Log.i(HomePage.TAG, "ResultHandler page:" + this.requestPage + "errorCode:" + errorCode + " errorMessage: " + errorMessage); } CommonHelper.checkErrorCode(HomePage.this.mContext, errorCode, errorMessage); break; default: break; } } } public static final int NUMS_OF_PAGE = 4; private ActionBar mActionBar; private ViewPager mViewPager; private Handler mUiHandler; private ViewsAdapter mViewAdapter; private TitlePageIndicator mPageIndicator; private int mCurrentPage; private int initPage; private final PullToRefreshListView[] views = new PullToRefreshListView[HomePage.NUMS_OF_PAGE]; private final ListView[] listViews = new ListView[HomePage.NUMS_OF_PAGE]; private final Cursor[] cursors = new Cursor[HomePage.NUMS_OF_PAGE]; private final BaseCursorAdapter[] adapters = new BaseCursorAdapter[HomePage.NUMS_OF_PAGE]; private final Parcelable[] states = new Parcelable[HomePage.NUMS_OF_PAGE]; private static final String[] PAGE_TITLES = new String[] { "", "??", "?", "?" }; private boolean endlessScroll; private boolean soundEffect; public static final String TAG = "HomePage"; private long lastPressTime = 0; private void checkRefresh() { final boolean refresh = OptionHelper.readBoolean(this, R.string.option_refresh_on_open, false); if ((this.mCurrentPage == 0) && (refresh || (this.cursors[0].getCount() == 0))) { this.mUiHandler.postDelayed(new Runnable() { @Override public void run() { if (HomePage.this.views[HomePage.this.mCurrentPage] != null) { HomePage.this.views[HomePage.this.mCurrentPage].setRefreshing(); } } }, 300); } } private void checkUpdate() { final boolean autoUpdate = OptionHelper.readBoolean(this, R.string.option_autoupdate, true); if (autoUpdate) { final long now = System.currentTimeMillis(); final long last = OptionHelper.readLong(this, R.string.option_auto_update_last_time, 0L); if (AppContext.DEBUG) { log("checkUpdate() autoUpdate=" + autoUpdate + " lastUpdateTime=" + last); } if ((now - last) > DownloadService.AUTO_UPDATE_INTERVAL) { OptionHelper.saveLong(this, R.string.option_auto_update_last_time, now); final Intent intent = new Intent(this, DownloadService.class); intent.putExtra(Constants.EXTRA_TYPE, DownloadService.TYPE_CHECK); startService(intent); } } } @SuppressWarnings("unused") private boolean doBackPress() { if ((System.currentTimeMillis() - this.lastPressTime) < 2000) { finish(); } else { CommonHelper.notify(this, "?"); this.lastPressTime = System.currentTimeMillis(); } return true; } /** * ?? */ private void doGetMore() { doRetrieve(this.mCurrentPage, true); } /** * ? */ private void doRefresh() { if (AppContext.DEBUG) { log("doRefresh()"); } doRetrieve(this.mCurrentPage, false); } /** * ?? * * @param type * ?Home/Mention/Message/Public */ private void doRetrieve(final int page, final boolean doGetMore) { if (AppContext.DEBUG) { log("doRetrieve() page=" + page + " doGetMore=" + doGetMore); } final ResultHandler handler = new ResultHandler(page, doGetMore); String sinceId = null; String maxId = null; final Cursor cursor = this.cursors[page]; switch (page) { case 0: if (doGetMore) { maxId = CommonHelper.getMaxId(cursor); } else { sinceId = CommonHelper.getSinceId(cursor); } FanfouServiceManager.doFetchHomeTimeline(this, new Messenger(handler), sinceId, maxId); break; case 1: if (doGetMore) { maxId = CommonHelper.getMaxId(cursor); } else { sinceId = CommonHelper.getSinceId(cursor); } FanfouServiceManager.doFetchMentions(this, new Messenger(handler), sinceId, maxId); break; case 2: FanfouServiceManager.doFetchDirectMessagesConversationList(this, new Messenger(handler), doGetMore); break; case 3: if (!doGetMore) { FanfouServiceManager.doFetchPublicTimeline(this, new Messenger(handler)); } break; default: break; } } @Override protected IntentFilter getIntentFilter() { final IntentFilter filter = new IntentFilter(); filter.addAction(Constants.ACTION_STATUS_SENT); filter.addAction(Constants.ACTION_DRAFTS_SENT); filter.addAction(Constants.ACTION_NOTIFICATION); return filter; } @Override protected int getPageType() { return BaseActivity.PAGE_HOME; } @Override public String getTitle(final int position) { return HomePage.PAGE_TITLES[position % HomePage.NUMS_OF_PAGE]; } private void goTop() { if (this.listViews[this.mCurrentPage] != null) { this.listViews[this.mCurrentPage].setSelection(0); } } private void initAdapters() { this.adapters[0] = new StatusCursorAdapter(true, this, this.cursors[0]); this.adapters[1] = new StatusCursorAdapter(true, this, this.cursors[1]); this.adapters[2] = new MessageCursorAdapter(this, this.cursors[2]); this.adapters[3] = new StatusCursorAdapter(true, this, this.cursors[3]); } private void initialize() { this.initPage = getIntent().getIntExtra(Constants.EXTRA_PAGE, 0); this.endlessScroll = OptionHelper.readBoolean(this, R.string.option_page_scroll_endless, false); this.soundEffect = OptionHelper.readBoolean(this, R.string.option_play_sound_effect, true); this.mUiHandler = new Handler(); initSoundManager(); } @SuppressWarnings("deprecation") private Cursor initMessageCursor() { final Uri uri = Uri.withAppendedPath(DirectMessageInfo.CONTENT_URI, "list"); return managedQuery(uri, DirectMessageInfo.COLUMNS, null, null, null); } private void initSoundManager() { setVolumeControlStream(AudioManager.STREAM_MUSIC); SoundManager.getInstance(); SoundManager.initSounds(this); SoundManager.loadSounds(); } @SuppressWarnings("deprecation") private Cursor initStatusCursor(final int type) { final String where = BasicColumns.TYPE + "=?"; final String[] whereArgs = new String[] { String.valueOf(type) }; final Uri uri = StatusInfo.CONTENT_URI; return managedQuery(uri, StatusInfo.COLUMNS, where, whereArgs, FanFouProvider.ORDERBY_DATE_DESC); } @Override protected boolean isHomeScreen() { return true; } private void log(final String message) { Log.d(HomePage.TAG, message); } @Override public void onBackPressed() { final boolean needConfirm = OptionHelper.readBoolean(this, R.string.option_confirm_on_exit, false); if (needConfirm) { final ConfirmDialog dialog = new ConfirmDialog(this, "??", "??"); dialog.setClickListener(new ConfirmDialog.AbstractClickHandler() { @Override public void onButton1Click() { HomePage.this.mContext.finish(); } }); dialog.show(); } else { super.onBackPressed(); } } @SuppressWarnings("deprecation") @Override protected boolean onBroadcastReceived(final Intent intent) { final String action = intent.getAction(); if (action.equals(Constants.ACTION_STATUS_SENT)) { if (AppContext.DEBUG) { log("onBroadcastReceived ACTION_STATUS_SENT"); } if (this.mCurrentPage == 0) { final boolean needRefresh = OptionHelper.readBoolean(this, R.string.option_refresh_after_send, false); if (needRefresh) { startRefresh(); } } } else if (action.equals(Constants.ACTION_DRAFTS_SENT)) { if (AppContext.DEBUG) { log("onBroadcastReceived ACTION_DRAFTS_SENT"); } if (this.mCurrentPage == 0) { final boolean needRefresh = OptionHelper.readBoolean(this, R.string.option_refresh_after_send, false); if (needRefresh) { startRefresh(); } } } else if (action.equals(Constants.ACTION_NOTIFICATION)) { if (AppContext.DEBUG) { log("onBroadcastReceived ACTION_NOTIFICATION"); } final int type = intent.getIntExtra(Constants.EXTRA_TYPE, -1); final int count = intent.getIntExtra(Constants.EXTRA_COUNT, 0); switch (type) { case NotificationService.NOTIFICATION_TYPE_HOME: if (count > 0) { if (this.cursors[0] != null) { this.cursors[0].requery(); } this.listViews[0].setSelection(0); CommonHelper.notify(this, count + "??"); if (this.soundEffect) { SoundManager.playSound(1, 0); } } break; case NotificationService.NOTIFICATION_TYPE_MENTION: if (count > 0) { if (this.cursors[1] != null) { this.cursors[1].requery(); } this.listViews[1].setSelection(0); CommonHelper.notify(this, count + "?@?"); if (this.soundEffect) { SoundManager.playSound(1, 0); } } break; case NotificationService.NOTIFICATION_TYPE_DM: if (count > 0) { if (this.cursors[2] != null) { this.cursors[2].requery(); } this.listViews[2].setSelection(0); CommonHelper.notify(this, count + "??"); if (this.soundEffect) { SoundManager.playSound(1, 0); } } break; default: break; } } return true; } @Override public void onClick(final View v) { switch (v.getId()) { case R.id.actionbar_title: goTop(); break; default: break; } } @Override protected void onCreate(final Bundle savedInstanceState) { super.onCreate(savedInstanceState); if (AppContext.DEBUG) { log("onCreate()"); } initialize(); setContentView(R.layout.home); setActionBar(); setListViews(); setViewPager(); setCursors(); setAdapters(); checkRefresh(); checkUpdate(); } @Override public boolean onCreateOptionsMenu(final Menu menu) { // super.onCreateOptionsMenu(menu); final MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.home_menu, menu); return true; } @Override protected void onDestroy() { super.onDestroy(); AppContext.getImageLoader().shutdown(); SoundManager.cleanup(); if (AppContext.DEBUG) { log("onDestroy()"); } } @Override public void onItemClick(final AdapterView<?> parent, final View view, final int position, final long id) { final Cursor c = (Cursor) parent.getItemAtPosition(position); if (c == null) { return; } if (this.mCurrentPage == 2) { CommonHelper.goMessageChatPage(this, c); } else { final Status s = Status.parse(c); if ((s != null) && !s.isNull()) { CommonHelper.goStatusPage(this, s); } } } @Override public boolean onItemLongClick(final AdapterView<?> parent, final View view, final int position, final long id) { if (this.mCurrentPage == 2) { return true; } final Cursor c = (Cursor) parent.getItemAtPosition(position); showPopup(view, c); return true; } @Override public boolean onKeyDown(final int keyCode, final KeyEvent event) { return super.onKeyDown(keyCode, event); } @Override public void onLastItemVisible() { } private void onMenuLogoutClick() { final ConfirmDialog dialog = new ConfirmDialog(this, "", "????"); dialog.setClickListener(new ConfirmDialog.AbstractClickHandler() { @Override public void onButton1Click() { AppContext.handleLogout(HomePage.this.mContext); IntentHelper.goLoginPage(HomePage.this.mContext); finish(); } }); dialog.show(); } private void onMenuOptionClick() { final Intent intent = new Intent(this, SettingsPage.class); startActivity(intent); } private void onMenuProfileClick() { ActionManager.doMyProfile(this); } private void onMenuSearchClick() { final Intent intent = new Intent(this, SearchPage.class); startActivity(intent); } @Override protected void onNewIntent(final Intent intent) { super.onNewIntent(intent); setIntent(intent); this.initPage = getIntent().getIntExtra(Constants.EXTRA_PAGE, 0); if (AppContext.DEBUG) { log("onNewIntent page=" + this.initPage); } if (this.initPage >= 0) { this.mViewPager.setCurrentItem(this.initPage); } } @Override public boolean onOptionsItemSelected(final MenuItem item) { final int id = item.getItemId(); switch (id) { case R.id.menu_option: onMenuOptionClick(); return true; case R.id.menu_profile: onMenuProfileClick(); return true; case R.id.menu_search: onMenuSearchClick(); return true; case R.id.menu_logout: onMenuLogoutClick(); return true; default: return super.onOptionsItemSelected(item); } } @Override public void onPageScrolled(final int position, final float positionOffset, final int positionOffsetPixels) { this.mPageIndicator.onPageScrolled(position, positionOffset, positionOffsetPixels); } @Override public void onPageScrollStateChanged(final int state) { } @Override public void onPageSelected(final int position) { this.mCurrentPage = position % HomePage.NUMS_OF_PAGE; this.mPageIndicator.onPageSelected(this.mCurrentPage); if ((this.cursors[this.mCurrentPage] != null) && (this.cursors[this.mCurrentPage].getCount() == 0)) { startRefresh(); } } @Override protected void onPause() { super.onPause(); if (AppContext.DEBUG) { log("onPause"); } } @Override public void onPullDownToRefresh(final PullToRefreshBase<ListView> refreshView) { doRefresh(); } @Override public void onPullUpToRefresh(final PullToRefreshBase<ListView> refreshView) { doGetMore(); } @Override protected void onRestoreInstanceState(final Bundle savedInstanceState) { super.onRestoreInstanceState(savedInstanceState); for (int i = 0; i < this.views.length; i++) { if (this.views[i] != null) { this.states[i] = savedInstanceState.getParcelable(this.views[i].toString()); } } } @Override protected void onResume() { super.onResume(); if (AppContext.DEBUG) { log("onResume"); } for (int i = 0; i < this.views.length; i++) { if ((this.views[i] != null) && (this.states[i] != null)) { this.listViews[i].onRestoreInstanceState(this.states[i]); this.states[i] = null; } } } @Override protected void onSaveInstanceState(final Bundle outState) { super.onSaveInstanceState(outState); for (int i = 0; i < this.views.length; i++) { if (this.views[i] != null) { this.states[i] = this.listViews[i].onSaveInstanceState(); outState.putParcelable(this.views[i].toString(), this.states[i]); } } } @Override protected void onStop() { super.onStop(); if (!AppContext.isWifi()) { AppContext.getImageLoader().clearQueue(); } } /** * ?ActionBar */ private void setActionBar() { this.mActionBar = (ActionBar) findViewById(R.id.actionbar); this.mActionBar.setRightAction(new ActionBar.WriteAction(this, null)); this.mActionBar.setTitle(getString(R.string.app_name)); if (AppContext.DEBUG) { this.mActionBar .setTitle("? " + AppContext.appVersionName + " " + AppContext.getUserName()); } } private void setAdapters() { initAdapters(); for (int i = 0; i < this.adapters.length; i++) { this.views[i].setAdapter(this.adapters[i]); } } private void setCursors() { this.cursors[0] = initStatusCursor(Constants.TYPE_STATUSES_HOME_TIMELINE); this.cursors[1] = initStatusCursor(Constants.TYPE_STATUSES_MENTIONS); this.cursors[2] = initMessageCursor(); this.cursors[3] = initStatusCursor(Constants.TYPE_STATUSES_PUBLIC_TIMELINE); } /** * ??ListView */ private void setListViews() { final LayoutInflater inflater = LayoutInflater.from(this); for (int i = 0; i < this.views.length; i++) { this.views[i] = (PullToRefreshListView) inflater.inflate(R.layout.ptr_list, null); this.views[i].setOnRefreshListener(this); this.listViews[i] = this.views[i].getRefreshableView(); this.listViews[i].setOnItemClickListener(this); if (i != 2) { this.listViews[i].setOnItemLongClickListener(this); } if (i == 3) { this.views[i].setMode(Mode.PULL_FROM_START); } } } private void setViewPager() { if (AppContext.DEBUG) { log("setViewPager initPage=" + this.initPage); } this.mViewAdapter = new ViewsAdapter(this.views, this.endlessScroll); this.mViewPager = (ViewPager) findViewById(R.id.viewpager); this.mViewPager.setOnPageChangeListener(this); this.mViewPager.setAdapter(this.mViewAdapter); this.mPageIndicator = (TitlePageIndicator) findViewById(R.id.viewindicator); this.mPageIndicator.setTitleProvider(this); if (this.initPage > 0) { this.mPageIndicator.setViewPager(this.mViewPager, this.initPage); this.mViewPager.setCurrentItem(this.initPage); } } private void showPopup(final View view, final Cursor c) { if (c != null) { final Status s = Status.parse(c); if (s == null) { return; } UIManager.showPopup(this.mContext, c, view, s); } } private void showToast(final String text) { ToastHelper.showInfoToast(this.mContext, text); } private void startRefresh() { if (this.views[this.mCurrentPage] != null) { this.views[this.mCurrentPage].setRefreshing(); } } }