Java tutorial
/* * Copyright 2014 Google Inc. All rights reserved. * * 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.google.samples.apps.iosched.ui; import android.annotation.SuppressLint; import android.app.ActionBar; import android.app.Fragment; import android.app.FragmentManager; import android.app.FragmentTransaction; import android.app.LoaderManager.LoaderCallbacks; import android.content.Context; import android.content.CursorLoader; import android.content.Intent; import android.content.Loader; import android.content.pm.ActivityInfo; import android.content.res.Configuration; import android.content.res.Resources; import android.database.Cursor; import android.graphics.Color; import android.net.Uri; import android.os.Bundle; import android.provider.BaseColumns; import android.support.v13.app.FragmentPagerAdapter; import android.support.v4.view.ViewPager; import android.text.TextUtils; import android.view.*; import android.webkit.WebView; import android.webkit.WebViewClient; import android.widget.*; import android.widget.LinearLayout.LayoutParams; import com.google.android.youtube.player.YouTubeInitializationResult; import com.google.android.youtube.player.YouTubePlayer; import com.google.android.youtube.player.YouTubePlayerFragment; import com.google.samples.apps.iosched.Config; import com.google.samples.apps.iosched.R; import com.google.samples.apps.iosched.provider.ScheduleContract.Sessions; import com.google.samples.apps.iosched.ui.widget.SlidingTabLayout; import com.google.samples.apps.iosched.util.AnalyticsManager; import com.google.samples.apps.iosched.util.SessionsHelper; import com.google.samples.apps.iosched.util.UIUtils; import java.util.ArrayList; import java.util.HashMap; import static com.google.samples.apps.iosched.util.LogUtils.*; /** * An activity that displays the session live stream video which is pulled in from YouTube. The * UI adapts for both phone and tablet. As we want to prevent the YouTube player from restarting * and buffering again on orientation change, we handle configuration changes manually. */ public class SessionLivestreamActivity extends BaseActivity implements LoaderCallbacks<Cursor>, YouTubePlayer.OnInitializedListener, YouTubePlayer.PlayerStateChangeListener, YouTubePlayer.OnFullscreenListener, ActionBar.OnNavigationListener { private static final String TAG = makeLogTag(SessionLivestreamActivity.class); private static final String EXTRA_PREFIX = "com.google.android.iosched.extra."; private static final int YOUTUBE_RECOVERY_RESULT = 1; private static final String LOADER_SESSIONS_ARG = "futureSessions"; public static final String EXTRA_YOUTUBE_URL = EXTRA_PREFIX + "youtube_url"; public static final String EXTRA_TITLE = EXTRA_PREFIX + "title"; public static final String EXTRA_ABSTRACT = EXTRA_PREFIX + "abstract"; public static final String EXTRA_CAPTIONS = EXTRA_PREFIX + "captions"; private static final String TAG_CAPTIONS = "captions"; private static final int TABNUM_SESSION_SUMMARY = 0; private static final int TABNUM_LIVE_CAPTIONS = 1; private boolean mIsTablet; private boolean mIsFullscreen = false; private boolean mLoadFromExtras = false; private boolean mTrackPlay = true; private TabsAdapter mTabsAdapter; private LinearLayout mTabsContentLayout; private YouTubePlayer mYouTubePlayer; private YouTubePlayerFragment mYouTubeFragment; private LinearLayout mPlayerContainer; private String mYouTubeVideoId; private LinearLayout mMainLayout; private LinearLayout mVideoLayout; private FrameLayout mFullscreenCaptions; private MenuItem mCaptionsMenuItem; private MenuItem mShareMenuItem; private Runnable mShareMenuDeferredSetup; private Runnable mSessionSummaryDeferredSetup; private SessionShareData mSessionShareData; private boolean mSessionsFound; private int mYouTubeFullscreenFlags; private LivestreamAdapter mLivestreamAdapter; private Uri mSessionUri; private String mSessionId; private String mCaptionsUrl; @Override protected void onCreate(Bundle savedInstanceState) { requestWindowFeature(Window.FEATURE_ACTION_BAR_OVERLAY); super.onCreate(savedInstanceState); setContentView(R.layout.activity_session_livestream); mIsTablet = UIUtils.isTablet(this); // Set up YouTube player mYouTubeFragment = (YouTubePlayerFragment) getFragmentManager().findFragmentById(R.id.livestream_player); mYouTubeFragment.initialize(Config.YOUTUBE_API_KEY, this); // Views that are common over all layouts mMainLayout = (LinearLayout) findViewById(R.id.livestream_mainlayout); adjustMainLayoutForActionBar(); mPlayerContainer = (LinearLayout) findViewById(R.id.livestream_player_container); mFullscreenCaptions = (FrameLayout) findViewById(R.id.fullscreen_captions); final LayoutParams params = (LayoutParams) mFullscreenCaptions.getLayoutParams(); params.setMargins(0, getActionBarHeightPx(), 0, getActionBarHeightPx()); mFullscreenCaptions.setLayoutParams(params); mTabsContentLayout = (LinearLayout) findViewById(R.id.livestream_tabs_layout); // Set up ViewPager and adapter ViewPager viewPager = (ViewPager) findViewById(R.id.livestream_pager); viewPager.setOffscreenPageLimit(2); viewPager.setPageMargin(getResources().getDimensionPixelSize(R.dimen.page_margin_width)); mTabsAdapter = new TabsAdapter(getFragmentManager()); viewPager.setAdapter(mTabsAdapter); viewPager.setOnPageChangeListener(mTabsAdapter); if (mIsTablet) { // Tablet UI specific views mVideoLayout = (LinearLayout) findViewById(R.id.livestream_video_layout); } mTabsAdapter.addTab(getString(R.string.session_livestream_info), new SessionSummaryFragment(), TABNUM_SESSION_SUMMARY); mTabsAdapter.addTab(getString(R.string.session_livestream_captions), new SessionCaptionsFragment(), TABNUM_LIVE_CAPTIONS); // Set up sliding tabs w/ViewPager SlidingTabLayout slidingTabLayout = (SlidingTabLayout) findViewById(R.id.livestream_sliding_tabs); slidingTabLayout.setCustomTabView(R.layout.tab_indicator, android.R.id.text1); Resources res = getResources(); slidingTabLayout.setSelectedIndicatorColors(res.getColor(R.color.tab_selected_strip)); slidingTabLayout.setDistributeEvenly(true); slidingTabLayout.setViewPager(viewPager); // Reload all other data in this activity reloadFromIntent(getIntent()); // Update layout based on current configuration updateLayout(getResources().getConfiguration()); // Set up action bar if (!mLoadFromExtras) { // Start sessions query to populate action bar navigation spinner getLoaderManager().initLoader(SessionsQuery._TOKEN, null, this); mLivestreamAdapter = new LivestreamAdapter(getActionBar().getThemedContext()); } } @Override protected void onResume() { super.onResume(); if (mSessionSummaryDeferredSetup != null) { mSessionSummaryDeferredSetup.run(); mSessionSummaryDeferredSetup = null; } } /** * Reloads all data in the activity and fragments from a given intent * @param intent The intent to load from */ private void reloadFromIntent(Intent intent) { final String youtubeUrl = intent.getStringExtra(EXTRA_YOUTUBE_URL); // Check if youtube url is set as an extra first if (youtubeUrl != null) { mLoadFromExtras = true; String actionBarTitle = getString(R.string.session_livestream_title); getActionBar().setTitle(actionBarTitle); updateSessionViews(youtubeUrl, intent.getStringExtra(EXTRA_TITLE), intent.getStringExtra(EXTRA_ABSTRACT), Config.CONFERENCE_HASHTAG, intent.getStringExtra(EXTRA_CAPTIONS)); } else { // Otherwise load from session uri reloadFromUri(intent.getData()); } } /** * Reloads all data in the activity and fragments from a given uri * @param newUri The session uri to load from */ private void reloadFromUri(Uri newUri) { mSessionUri = newUri; if (mSessionUri != null && mSessionUri.getPathSegments().size() >= 2) { mSessionId = Sessions.getSessionId(mSessionUri); getLoaderManager().restartLoader(SessionSummaryQuery._TOKEN, null, this); } else { // No session uri, get out mSessionUri = null; finish(); } } /** * Helper method to start this activity using only extras (rather than session uri). * @param context The package context * @param youtubeUrl The youtube url or video id to load * @param title The title to show in the session info fragment, can be null * @param sessionAbstract The session abstract to show in the session info fragment, can be null */ public static void startFromExtras(Context context, String youtubeUrl, String title, String sessionAbstract, String captionsUrl) { if (youtubeUrl == null) { return; } final Intent i = new Intent(); i.setClass(context, SessionLivestreamActivity.class); i.putExtra(EXTRA_YOUTUBE_URL, youtubeUrl); i.putExtra(EXTRA_TITLE, title); i.putExtra(EXTRA_ABSTRACT, sessionAbstract); i.putExtra(EXTRA_CAPTIONS, captionsUrl); context.startActivity(i); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.session_livestream, menu); mCaptionsMenuItem = menu.findItem(R.id.menu_captions); mShareMenuItem = menu.findItem(R.id.menu_share); if (mShareMenuDeferredSetup != null) { mShareMenuDeferredSetup.run(); } if (!mIsTablet && Configuration.ORIENTATION_LANDSCAPE == getResources().getConfiguration().orientation) { mCaptionsMenuItem.setVisible(true); } return super.onCreateOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.menu_captions: if (mIsFullscreen) { if (mFullscreenCaptions.getVisibility() == View.GONE) { mFullscreenCaptions.setVisibility(View.VISIBLE); SessionCaptionsFragment captionsFragment; captionsFragment = (SessionCaptionsFragment) getFragmentManager() .findFragmentByTag(TAG_CAPTIONS); if (captionsFragment == null) { captionsFragment = new SessionCaptionsFragment(); captionsFragment.setDarkTheme(true); FragmentTransaction ft = getFragmentManager().beginTransaction(); ft.add(R.id.fullscreen_captions, captionsFragment, TAG_CAPTIONS); ft.commit(); } captionsFragment.updateViews(mCaptionsUrl); return true; } } mFullscreenCaptions.setVisibility(View.GONE); break; case R.id.menu_share: if (mSessionShareData != null) { new SessionsHelper(this).shareSession(this, R.string.share_livestream_template, mSessionShareData.title, mSessionShareData.hashtag, mSessionShareData.sessionUrl); return true; } break; } return super.onOptionsItemSelected(item); } @Override public void onConfigurationChanged(Configuration newConfig) { // Need to handle configuration changes so as not to interrupt YT player and require // buffering again updateLayout(newConfig); super.onConfigurationChanged(newConfig); } @Override public boolean onNavigationItemSelected(int itemPosition, long itemId) { final Cursor cursor = (Cursor) mLivestreamAdapter.getItem(itemPosition); final String sessionId = cursor.getString(SessionsQuery.SESSION_ID); if (sessionId != null) { reloadFromUri(Sessions.buildSessionUri(sessionId)); return true; } return false; } @Override public Loader<Cursor> onCreateLoader(int id, Bundle args) { switch (id) { case SessionSummaryQuery._TOKEN: return new CursorLoader(this, Sessions.buildSessionUri(mSessionId), SessionSummaryQuery.PROJECTION, null, null, null); case SessionsQuery._TOKEN: boolean futureSessions = false; if (args != null) { futureSessions = args.getBoolean(LOADER_SESSIONS_ARG, false); } final long currentTime = UIUtils.getCurrentTime(this); String selection = Sessions.LIVESTREAM_SELECTION + " and "; String[] selectionArgs; if (!futureSessions) { selection += Sessions.AT_TIME_SELECTION; selectionArgs = Sessions.buildAtTimeSelectionArgs(currentTime); } else { selection += Sessions.UPCOMING_LIVE_SELECTION; selectionArgs = Sessions.buildUpcomingSelectionArgs(currentTime); } return new CursorLoader(this, Sessions.CONTENT_URI, SessionsQuery.PROJECTION, selection, selectionArgs, SessionsQuery.SORT_ORDER); } return null; } @Override public void onLoadFinished(Loader<Cursor> loader, Cursor data) { switch (loader.getId()) { case SessionSummaryQuery._TOKEN: loadSessionSummary(data); break; case SessionsQuery._TOKEN: loadSessionsList(data); break; } } /** * Locates which item should be selected in the action bar drop-down spinner based on the * current active session uri * @param data The data * @return The row num of the item that should be selected or 0 if not found */ private int locateSelectedItem(Cursor data) { int selected = 0; if (data != null && mSessionId != null) { while (data.moveToNext()) { if (mSessionId.equals(data.getString(SessionsQuery.SESSION_ID))) { selected = data.getPosition(); mCaptionsUrl = null; } } } return selected; } @Override public void onLoaderReset(Loader<Cursor> loader) { switch (loader.getId()) { case SessionsQuery._TOKEN: mLivestreamAdapter.swapCursor(null); break; } } @Override public void onFullscreen(boolean fullscreen) { layoutFullscreenVideo(fullscreen); } @Override public void onLoading() { } @Override public void onLoaded(String s) { } @Override public void onAdStarted() { } @Override public void onVideoStarted() { } @Override public void onVideoEnded() { } @Override public void onError(YouTubePlayer.ErrorReason errorReason) { Toast.makeText(this, R.string.session_livestream_error_playback, Toast.LENGTH_LONG).show(); LOGE(TAG, errorReason.toString()); } /** * Load the session summary info for the currently selected live session. */ private void loadSessionSummary(Cursor data) { if (data != null && data.moveToFirst()) { mCaptionsUrl = data.getString(SessionSummaryQuery.CAPTIONS_URL); final long currentTime = UIUtils.getCurrentTime(this); if (currentTime > data.getLong(SessionSummaryQuery.SESSION_END)) { getLoaderManager().restartLoader(SessionsQuery._TOKEN, null, this); return; } updateSessionViews(data.getString(SessionSummaryQuery.LIVESTREAM_URL), data.getString(SessionSummaryQuery.TITLE), data.getString(SessionSummaryQuery.ABSTRACT), data.getString(SessionSummaryQuery.HASHTAGS), mCaptionsUrl); } } /** * Load the list of currently live sessions or upcoming live sessions. This * populates the Action Bar (either the title or as list navigation. */ private void loadSessionsList(Cursor data) { mLivestreamAdapter.swapCursor(data); if (data != null && data.getCount() > 0) { mSessionsFound = true; final ActionBar actionBar = getActionBar(); if (data.getCount() == 1) { // Just one session on, display title in Action Bar if (data.moveToFirst()) { actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD); actionBar.setDisplayShowTitleEnabled(true); actionBar.setTitle(data.getString(SessionsQuery.TITLE)); } } else if (data.getCount() > 1) { // 2+ sessions found, set Action Bar to list navigation (spinner) actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST); actionBar.setListNavigationCallbacks(mLivestreamAdapter, this); actionBar.setDisplayShowTitleEnabled(false); getActionBar().setSelectedNavigationItem(locateSelectedItem(data)); } } else if (mSessionsFound) { // Sessions were previously found but no sessions are currently live, // adjust query to see if there are any future sessions at all mSessionsFound = false; final Bundle bundle = new Bundle(); bundle.putBoolean(LOADER_SESSIONS_ARG, true); getLoaderManager().restartLoader(SessionsQuery._TOKEN, bundle, this); } else { // No sessions live right now and no sessions coming up, get out finish(); } } /** * Updates views that rely on session data from explicit strings. */ private void updateSessionViews(final String youtubeUrl, final String title, final String sessionAbstract, final String hashTag, final String captionsUrl) { if (youtubeUrl == null) { // Get out, nothing to do here finish(); return; } mCaptionsUrl = captionsUrl; String youtubeVideoId = getVideoIdFromUrl(youtubeUrl); // Play the video playVideo(youtubeVideoId); if (mTrackPlay) { /* [ANALYTICS:SCREEN] * TRIGGER: View the Live Stream screen for a sessino. * LABEL: 'Live Streaming' + session title/subtitle * [/ANALYTICS] */ AnalyticsManager.sendScreenView("Live Streaming: " + title); LOGD("Tracker", "Live Streaming: " + title); } final String newYoutubeUrl = Config.YOUTUBE_SHARE_URL_PREFIX + youtubeVideoId; mSessionShareData = new SessionShareData(title, hashTag, newYoutubeUrl); mShareMenuDeferredSetup = new Runnable() { @Override public void run() { new SessionsHelper(SessionLivestreamActivity.this).tryConfigureShareMenuItem(mShareMenuItem, R.string.share_livestream_template, title, hashTag, newYoutubeUrl); } }; if (mShareMenuItem != null) { mShareMenuDeferredSetup.run(); mShareMenuDeferredSetup = null; } mSessionSummaryDeferredSetup = new Runnable() { @Override public void run() { updateSessionSummaryFragment(title, sessionAbstract); updateSessionLiveCaptionsFragment(captionsUrl); } }; if (!mLoadFromExtras) { mSessionSummaryDeferredSetup.run(); mSessionSummaryDeferredSetup = null; } } private void updateSessionSummaryFragment(String title, String sessionAbstract) { SessionSummaryFragment sessionSummaryFragment = (SessionSummaryFragment) mTabsAdapter .getTabFragment(TABNUM_SESSION_SUMMARY); if (sessionSummaryFragment != null) { sessionSummaryFragment.setSessionSummaryInfo(title, sessionAbstract); } } private void updateSessionLiveCaptionsFragment(String captionsUrl) { SessionCaptionsFragment captionsFragment = (SessionCaptionsFragment) mTabsAdapter .getTabFragment(TABNUM_LIVE_CAPTIONS); if (captionsFragment != null) { captionsFragment.updateViews(captionsUrl); } } private void playVideo(String videoId) { if ((TextUtils.isEmpty(mYouTubeVideoId) || !mYouTubeVideoId.equals(videoId)) && !TextUtils.isEmpty(videoId)) { mYouTubeVideoId = videoId; if (mYouTubePlayer != null) { mYouTubePlayer.loadVideo(mYouTubeVideoId); } mTrackPlay = true; if (mSessionShareData != null) { mSessionShareData.sessionUrl = Config.YOUTUBE_SHARE_URL_PREFIX + mYouTubeVideoId; } } } @Override public Intent getParentActivityIntent() { if (mLoadFromExtras || mSessionUri == null) { return new Intent(this, MyScheduleActivity.class); } else { return new Intent(Intent.ACTION_VIEW, mSessionUri); } } @Override public void onInitializationSuccess(YouTubePlayer.Provider provider, YouTubePlayer youTubePlayer, boolean wasRestored) { // Set up YouTube player mYouTubePlayer = youTubePlayer; mYouTubePlayer.setPlayerStateChangeListener(this); mYouTubePlayer.setFullscreen(mIsFullscreen); mYouTubePlayer.setOnFullscreenListener(this); // YouTube player flags: use a custom full screen layout; let the YouTube player control // the system UI (hiding navigation controls, ActionBar etc); and let the YouTube player // handle the orientation state of the activity. mYouTubeFullscreenFlags = YouTubePlayer.FULLSCREEN_FLAG_CUSTOM_LAYOUT | YouTubePlayer.FULLSCREEN_FLAG_CONTROL_SYSTEM_UI | YouTubePlayer.FULLSCREEN_FLAG_CONTROL_ORIENTATION; // On smaller screen devices always switch to full screen in landscape mode if (!mIsTablet) { mYouTubeFullscreenFlags |= YouTubePlayer.FULLSCREEN_FLAG_ALWAYS_FULLSCREEN_IN_LANDSCAPE; } // Apply full screen flags mYouTubePlayer.setFullscreenControlFlags(mYouTubeFullscreenFlags); // Load the requested video if (!TextUtils.isEmpty(mYouTubeVideoId)) { mYouTubePlayer.loadVideo(mYouTubeVideoId); } } @Override public void onInitializationFailure(YouTubePlayer.Provider provider, YouTubeInitializationResult result) { LOGE(TAG, result.toString()); if (result.isUserRecoverableError()) { result.getErrorDialog(this, YOUTUBE_RECOVERY_RESULT).show(); } else { String errorMessage = getString(R.string.session_livestream_error_init, result.toString()); Toast.makeText(this, errorMessage, Toast.LENGTH_LONG).show(); } } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (requestCode == YOUTUBE_RECOVERY_RESULT) { if (mYouTubeFragment != null) { mYouTubeFragment.initialize(Config.YOUTUBE_API_KEY, this); } } } /** * Updates the layout based on the provided configuration */ private void updateLayout(Configuration config) { if (config.orientation == Configuration.ORIENTATION_LANDSCAPE) { if (mIsTablet) { layoutTabletForLandscape(); } else { layoutPhoneForLandscape(); } } else { if (mIsTablet) { layoutTabletForPortrait(); } else { layoutPhoneForPortrait(); } } } private void layoutPhoneForLandscape() { layoutFullscreenVideo(true); } private void layoutPhoneForPortrait() { layoutFullscreenVideo(false); SessionSummaryFragment sessionSummaryFragment = (SessionSummaryFragment) mTabsAdapter .getTabFragment(TABNUM_SESSION_SUMMARY); if (sessionSummaryFragment != null) { sessionSummaryFragment.updateViews(); } } private void layoutTabletForLandscape() { mMainLayout.setOrientation(LinearLayout.HORIZONTAL); final LayoutParams videoLayoutParams = (LayoutParams) mVideoLayout.getLayoutParams(); videoLayoutParams.height = LayoutParams.MATCH_PARENT; videoLayoutParams.width = 0; videoLayoutParams.weight = 2; mVideoLayout.setLayoutParams(videoLayoutParams); final LayoutParams extraLayoutParams = (LayoutParams) mTabsContentLayout.getLayoutParams(); extraLayoutParams.height = LayoutParams.MATCH_PARENT; extraLayoutParams.width = 0; extraLayoutParams.weight = 1; mTabsContentLayout.setLayoutParams(extraLayoutParams); } private void layoutTabletForPortrait() { mMainLayout.setOrientation(LinearLayout.VERTICAL); final LayoutParams videoLayoutParams = (LayoutParams) mVideoLayout.getLayoutParams(); videoLayoutParams.width = LayoutParams.MATCH_PARENT; videoLayoutParams.height = LayoutParams.WRAP_CONTENT; videoLayoutParams.weight = 0; mVideoLayout.setLayoutParams(videoLayoutParams); final LayoutParams extraLayoutParams = (LayoutParams) mTabsContentLayout.getLayoutParams(); extraLayoutParams.width = LayoutParams.MATCH_PARENT; extraLayoutParams.height = 0; extraLayoutParams.weight = 5; mTabsContentLayout.setLayoutParams(extraLayoutParams); } private void layoutFullscreenVideo(boolean fullscreen) { if (mIsFullscreen != fullscreen) { mIsFullscreen = fullscreen; if (mIsTablet) { // Tablet specific layout layoutTabletFullscreen(fullscreen); } else { // Phone specific layout layoutPhoneFullscreen(fullscreen); } // Full screen layout changes for all form factors if (fullscreen) { if (mCaptionsMenuItem != null) { mCaptionsMenuItem.setVisible(true); } mMainLayout.setPadding(0, 0, 0, 0); } else { getActionBar().show(); if (mCaptionsMenuItem != null) { mCaptionsMenuItem.setVisible(false); } mFullscreenCaptions.setVisibility(View.GONE); adjustMainLayoutForActionBar(); } } } private void adjustMainLayoutForActionBar() { // On ICS+ we use FEATURE_ACTION_BAR_OVERLAY so full screen mode doesn't need to // re-adjust layouts when hiding action bar. To account for this we add action bar // height pack to the padding when not in full screen mode. mMainLayout.setPadding(0, getActionBarHeightPx(), 0, 0); } /** * Adjusts tablet layouts for full screen video. * * @param fullscreen True to layout in full screen, false to switch to regular layout */ private void layoutTabletFullscreen(boolean fullscreen) { if (fullscreen) { mTabsContentLayout.setVisibility(View.GONE); } else { mTabsContentLayout.setVisibility(View.VISIBLE); } } /** * Adjusts phone layouts for full screen video. */ private void layoutPhoneFullscreen(boolean fullscreen) { View youTubePlayerView = mYouTubeFragment.getView(); if (youTubePlayerView != null) { ViewGroup.LayoutParams playerParams = mYouTubeFragment.getView().getLayoutParams(); playerParams.height = fullscreen ? LayoutParams.MATCH_PARENT : LayoutParams.WRAP_CONTENT; youTubePlayerView.setLayoutParams(playerParams); } final LayoutParams containerParams = (LayoutParams) mPlayerContainer.getLayoutParams(); containerParams.height = fullscreen ? LayoutParams.MATCH_PARENT : LayoutParams.WRAP_CONTENT; mPlayerContainer.setLayoutParams(containerParams); if (fullscreen) { mTabsContentLayout.setVisibility(View.GONE); if (mYouTubePlayer != null) { mYouTubePlayer.setFullscreen(true); } } else { mTabsContentLayout.setVisibility(View.VISIBLE); setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); } } private int getActionBarHeightPx() { int[] attrs = new int[] { R.attr.actionBarSize }; return (int) getTheme().obtainStyledAttributes(attrs).getDimension(0, 0f); } public static String getVideoIdFromUrl(String youtubeUrl) { if (!TextUtils.isEmpty(youtubeUrl) && youtubeUrl.startsWith("http")) { Uri youTubeUri = Uri.parse(youtubeUrl); return youTubeUri.getQueryParameter("v"); } return youtubeUrl; } /** * Adapter that backs the action bar drop-down spinner. */ private class LivestreamAdapter extends CursorAdapter { LayoutInflater mLayoutInflater; public LivestreamAdapter(Context context) { super(context, null, 0); mLayoutInflater = (LayoutInflater) getActionBar().getThemedContext() .getSystemService(LAYOUT_INFLATER_SERVICE); } @Override public Object getItem(int position) { Cursor c = getCursor(); c.moveToPosition(position); return c; } @Override public View newDropDownView(Context context, Cursor cursor, ViewGroup parent) { // Inflate view that appears in the drop-down spinner views return mLayoutInflater.inflate(R.layout.livestream_spinner_item_dropdown, parent, false); } @Override public View newView(Context context, Cursor cursor, ViewGroup parent) { // Inflate view that appears in the selected spinner return mLayoutInflater.inflate(R.layout.livestream_spinner_item_actionbar, parent, false); } @Override public void bindView(View view, Context context, Cursor cursor) { // Bind view that appears in the selected spinner or in the drop-down final TextView titleView = (TextView) view.findViewById(android.R.id.text1); titleView.setText(cursor.getString(SessionsQuery.TITLE)); } } /** * Adapter that backs the ViewPager tabs on the phone UI. */ private static class TabsAdapter extends FragmentPagerAdapter implements ViewPager.OnPageChangeListener { private final HashMap<Integer, Fragment> mFragments; private final ArrayList<Integer> mTabNums; private final ArrayList<CharSequence> mTabTitles; @SuppressLint("UseSparseArrays") public TabsAdapter(FragmentManager fm) { super(fm); mFragments = new HashMap<Integer, Fragment>(3); mTabNums = new ArrayList<Integer>(3); mTabTitles = new ArrayList<CharSequence>(2); } public void addTab(String tabTitle, Fragment newFragment, int tabId) { mTabTitles.add(tabTitle); mFragments.put(tabId, newFragment); mTabNums.add(tabId); notifyDataSetChanged(); } public Fragment getTabFragment(int tabNum) { if (mFragments.containsKey(tabNum)) { return mFragments.get(tabNum); } return null; } @Override public CharSequence getPageTitle(int position) { return mTabTitles.get(position); } @Override public int getCount() { return mFragments.size(); } @Override public Fragment getItem(int position) { return mFragments.get(mTabNums.get(position)); } @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { } @Override public void onPageSelected(int position) { } @Override public void onPageScrollStateChanged(int state) { } } /** * Simple fragment that inflates a session summary layout that displays session title and * abstract. */ public static class SessionSummaryFragment extends Fragment { private TextView mTitleView; private TextView mAbstractView; private String mTitle; private String mAbstract; public SessionSummaryFragment() { } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.fragment_session_summary, null); mTitleView = (TextView) view.findViewById(R.id.session_title); mAbstractView = (TextView) view.findViewById(R.id.session_abstract); updateViews(); return view; } public void setSessionSummaryInfo(String sessionTitle, String sessionAbstract) { mTitle = sessionTitle; mAbstract = sessionAbstract; updateViews(); } public void updateViews() { if (mTitleView != null && mAbstractView != null) { mTitleView.setText(mTitle); if (!TextUtils.isEmpty(mAbstract)) { mAbstractView.setVisibility(View.VISIBLE); mAbstractView.setText(mAbstract); } else { mAbstractView.setVisibility(View.GONE); } } } } /** * Simple fragment that shows the live captions. */ public static class SessionCaptionsFragment extends Fragment { private FrameLayout mContainer; private WebView mWebView; private TextView mNoCaptionsTextView; private boolean mDarkTheme = false; private String mLocalCaptionsUrl; public SessionCaptionsFragment() { } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.fragment_session_captions, null); mContainer = (FrameLayout) view.findViewById(R.id.session_caption_container); if (!UIUtils.isTablet(getActivity())) { mContainer.setBackgroundColor(Color.WHITE); } mNoCaptionsTextView = (TextView) view.findViewById(android.R.id.empty); mWebView = (WebView) view.findViewById(R.id.session_caption_area); mWebView.setOnLongClickListener(new View.OnLongClickListener() { @Override public boolean onLongClick(View view) { // Disable text selection in WebView (doesn't work well with the YT player // triggering full screen chrome after a timeout) return true; } }); mWebView.setWebViewClient(new WebViewClient() { @Override public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) { showNoCaptionsAvailable(); } }); updateViews(mLocalCaptionsUrl); return view; } public void setDarkTheme(boolean dark) { mDarkTheme = dark; } @SuppressLint("SetJavaScriptEnabled") public void updateViews(String captionsUrl) { mLocalCaptionsUrl = captionsUrl; if (mWebView != null && !TextUtils.isEmpty(captionsUrl)) { if (mDarkTheme) { mWebView.setBackgroundColor(Color.BLACK); mContainer.setBackgroundColor(Color.BLACK); mNoCaptionsTextView.setTextColor(Color.WHITE); } else { mWebView.setBackgroundColor(Color.WHITE); } String finalCaptionsUrl = captionsUrl; if (finalCaptionsUrl != null) { if (mDarkTheme) { finalCaptionsUrl += Config.LIVESTREAM_CAPTIONS_DARK_THEME_URL_PARAM; } mWebView.getSettings().setJavaScriptEnabled(true); mWebView.loadUrl(finalCaptionsUrl); mNoCaptionsTextView.setVisibility(View.GONE); mWebView.setVisibility(View.VISIBLE); } else { showNoCaptionsAvailable(); } } } private void showNoCaptionsAvailable() { mWebView.setVisibility(View.GONE); mNoCaptionsTextView.setVisibility(View.VISIBLE); } } private static class SessionShareData { String title; String hashtag; String sessionUrl; public SessionShareData(String title, String hashTag, String url) { this.title = title; hashtag = hashTag; sessionUrl = url; } } /** * Single session query */ public interface SessionSummaryQuery { final static int _TOKEN = 0; final static String[] PROJECTION = { Sessions.SESSION_ID, Sessions.SESSION_TITLE, Sessions.SESSION_ABSTRACT, Sessions.SESSION_HASHTAG, Sessions.SESSION_LIVESTREAM_URL, Sessions.SESSION_CAPTIONS_URL, Sessions.SESSION_END, }; final static int ID = 0; final static int TITLE = 1; final static int ABSTRACT = 2; final static int HASHTAGS = 3; final static int LIVESTREAM_URL = 4; final static int CAPTIONS_URL = 5; final static int SESSION_END = 6; } /** * List of sessions query */ public interface SessionsQuery { final static int _TOKEN = 1; final static String[] PROJECTION = { BaseColumns._ID, Sessions.SESSION_ID, Sessions.SESSION_TITLE, }; final static int _ID = 0; final static int SESSION_ID = 1; final static int TITLE = 2; final static String SORT_ORDER = Sessions.SESSION_TITLE; } }