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Copyright (C) 2012 Dagfinn Parnas <dagfinn.parnas@gmail.com> Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Sof...
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package com.elsewhat.android.slideshow.activities; /*from w w w. ja va2s. c om*/ import java.io.File; import java.io.InputStream; import java.lang.ref.WeakReference; import java.lang.reflect.InvocationTargetException; import java.lang.reflect.Method; import java.util.ArrayList; import java.util.Collections; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Random; import java.util.Timer; import java.util.TimerTask; import android.annotation.SuppressLint; import android.app.Activity; import android.app.MediaRouteButton; import android.content.ActivityNotFoundException; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.content.SharedPreferences.OnSharedPreferenceChangeListener; import android.content.pm.ResolveInfo; import android.content.res.Configuration; import android.content.res.TypedArray; import android.graphics.Color; import android.graphics.drawable.Drawable; import android.net.Uri; import android.os.AsyncTask; import android.os.Bundle; import android.os.Environment; import android.util.Log; import android.view.Display; 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.view.ViewGroup; import android.view.Window; import android.view.WindowManager; import android.view.animation.Animation; import android.view.animation.AnimationUtils; import android.widget.ArrayAdapter; import android.widget.Gallery; import android.widget.ImageView; import android.widget.TextSwitcher; import android.widget.TextView; import android.widget.Toast; import com.elsewhat.android.slideshow.R; import com.elsewhat.android.slideshow.api.Analytics; import com.elsewhat.android.slideshow.api.AndroidUtils; import com.elsewhat.android.slideshow.api.AsyncQueueableObject; import com.elsewhat.android.slideshow.api.AsyncReadQueue; import com.elsewhat.android.slideshow.api.AsyncReadQueue.AsyncQueueListener; import com.elsewhat.android.slideshow.api.CustomGallery; import com.elsewhat.android.slideshow.api.DownloadableObject; import com.elsewhat.android.slideshow.api.FileDownloader; import com.elsewhat.android.slideshow.api.FileDownloader.FileDownloaderListener; import com.elsewhat.android.slideshow.api.FileUtils; import com.elsewhat.android.slideshow.api.ImageAdapter; import com.elsewhat.android.slideshow.api.QueueablePhotoObject; import com.elsewhat.android.slideshow.api.SlideshowPhoto; import com.elsewhat.android.slideshow.api.SlideshowPhotoCached; import com.elsewhat.android.slideshow.api.SlideshowPhotoDrawable; import com.elsewhat.android.slideshow.backend.FlickrPublicSetBackend; public class SlideshowActivity extends Activity implements FileDownloaderListener, OnSharedPreferenceChangeListener,AsyncQueueListener, ISlideshowInstance{ protected ImageAdapter imageAdapter; public static final String LOG_PREFIX = "ElsewhatSlideshow"; protected File rootFileDirectory; protected CustomGallery gallery; protected SlideshowTimerTask slideshowTimerTask; protected boolean isSlideshowRunning=true; //for downloading the photos protected FileDownloader fileDownloader; protected Timer timerDescriptionScrolling=null; //temp list in order to make sure the image adapter is not updated too often protected ArrayList<SlideshowPhoto> queuedSlideshowPhotos; protected AsyncReadQueue<Drawable> asyncReadQueue; protected Menu menu; protected ChromecastAddin chromecastAddIn; boolean cachedPhotosDeleted=false; boolean userCreatedTouchEvent=false; int screenHeightPx; int screenWidthPx; @Override public void onCreate(Bundle savedInstanceState) { //make full screen for pre-honeycomb devices if(AndroidUtils.isAndroid30()){ //9 == Window.FEATURE_ACTION_BAR_OVERLAY. Done in order to avoid having to use reflection as value is not present in 2.2 getWindow().requestFeature(9); }else {//all pre-3.0 version requestWindowFeature(Window.FEATURE_NO_TITLE); getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); } Analytics.trackPageView(getApplicationContext(), "/start"); String rootPath = Environment.getExternalStorageDirectory()+ SlideshowPreferences.CACHE_DIRECTORY; rootFileDirectory= new File (rootPath); asyncReadQueue=new AsyncReadQueue<Drawable>(getApplicationContext(), this); //register listener so we can handle if the cached photos are deleted SharedPreferences settings = getSharedPreferences(SlideshowPreferences.PREFS_NAME, MODE_WORLD_READABLE); settings.registerOnSharedPreferenceChangeListener(this); super.onCreate(savedInstanceState); Display display = getWindowManager().getDefaultDisplay(); screenWidthPx = display.getWidth(); screenHeightPx = display.getHeight(); //notifyUser("Resolution discovered "+screenWidthPx + "x"+screenHeightPx); setContentView(R.layout.gallery_1); // Reference the Gallery view gallery = (CustomGallery) findViewById(R.id.gallery); //lights out mode for the activity //Reflection call similar to gallery.setSystemUiVisibility(View.STATUS_BAR_HIDDEN); //Needed since android 2.2 doesn't have method onCreateReflectionCalls(gallery,this); ////transition time in millis gallery.setAnimationDuration(5500); //disable annoying click sound on next photo gallery.setSoundEffectsEnabled(false); //disable sleep gallery.setKeepScreenOn (true); boolean doCustomTransition= SlideshowPreferences.doCustomTransition(getApplicationContext()); gallery.setDoCustomTransition(doCustomTransition); //Add some hardcoded photos that will be displayed untill we have download the others ArrayList<SlideshowPhoto> cachedDrawables = new ArrayList<SlideshowPhoto>(10); //FYI the url is only used during share photo cachedDrawables.add(new SlideshowPhotoDrawable(this,"Father", "Graffiti art captured in Bergen, Norway. This additional text is used to test how long texts are broken down and displayed in intervals of some seconds apart. We need it to be just a bit longer in order to split it in 3 parts",R.drawable.photo_father,"http://dl.dropbox.com/u/4379928/Slideshow/father.JPG")); cachedDrawables.add(new SlideshowPhotoDrawable(this,"Handstand","The lightning was just perfect this day, so why not use it for something productively. This photo was taken at Bore beach.",R.drawable.photo_handstand,"http://dl.dropbox.com/u/4379928/Slideshow/handstand.jpg")); cachedDrawables.add(new SlideshowPhotoDrawable(this,"Lexus", "A showcase photo of the Lexus IS series. This additional text is used to test how long texts are broken down and displayed in intervals and so there so",R.drawable.photo_lexus,"http://dl.dropbox.com/u/4379928/Slideshow/lexus_is%2Cjpg.jpg")); //lets randomize the three hardcoded photos long seed = System.nanoTime(); Collections.shuffle(cachedDrawables, new Random(seed)); //cachedDrawables.add(new SlideshowPhotoDrawable(this,"test", "test",R.drawable.logo)); boolean doDisplayPhotoTitle= SlideshowPreferences.doDisplayPhotoTitle(getApplicationContext()); //create the adapter holding the slideshow photos imageAdapter=new ImageAdapter(this,this,0,cachedDrawables,rootFileDirectory,doDisplayPhotoTitle); gallery.setAdapter(imageAdapter); //we call this manually the first time. This triggers a TextSwitcher that scrolls/swaps the text of the description setUpScrollingOfDescription(); // Set a item click listener, and just Toast the clicked position //gallery.setOnItemClickListener(new OnItemClickListener() { // public void onItemClick(AdapterView<?> parent, View v, int position, long id) { // Toast.makeText(SlideshowActivity.this, "Photo in position " + position + " clicked", Toast.LENGTH_SHORT).show(); // } //}); // We also want to show context menu for longpressed items in the gallery registerForContextMenu(gallery); //The SlideshowTimerTask task is started by onResume (which is called soon after onCreate //slideshowTimerTask= new SlideshowTimerTask(); //slideshowTimerTask.execute(); //Canvas test = new Canvas(); //Log.i(LOG_PREFIX, " Canvas max " + test.getMaximumBitmapHeight()+","+test.getMaximumBitmapHeight()); new PhotoUrlsTask().execute(); } @SuppressWarnings({ "unchecked", "rawtypes" }) public void onCreateReflectionCalls(Gallery aGallery, Activity activity){ try { //same as gallery.setSystemUiVisibility(View.STATUS_BAR_HIDDEN); Class GalleryClass = aGallery.getClass(); Method setSystemMethod = GalleryClass.getMethod("setSystemUiVisibility", int.class); setSystemMethod.invoke(aGallery, 1); Class ActivityClass = activity.getClass(); Method getActionBar = ActivityClass.getMethod("getActionBar"); Object objectActionBar = getActionBar.invoke(activity); Class ActionBarClass = objectActionBar.getClass(); Method setDisplayShowTitleEnabled = ActionBarClass.getMethod("setDisplayShowTitleEnabled", boolean.class); setDisplayShowTitleEnabled.invoke(objectActionBar, false); }catch (NoSuchMethodException e) { //ignore // TODO: handle exception } catch (IllegalArgumentException e) { // TODO Auto-generated catch block //e.printStackTrace(); } catch (IllegalAccessException e) { // TODO Auto-generated catch block //e.printStackTrace(); } catch (InvocationTargetException e) { // TODO Auto-generated catch block //e.printStackTrace(); } } /* @Override public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { menu.add("Context menu"); } */ /* @Override public boolean onContextItemSelected(MenuItem item) { AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo(); Toast.makeText(this, "Longpress: " + info.position, Toast.LENGTH_SHORT).show(); return true; }*/ @SuppressLint("NewApi") @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); //the set as menu item is not on googletv if(AndroidUtils.isGoogleTV(getApplicationContext())){ inflater.inflate(R.menu.menu_googletv, menu); }else { inflater.inflate(R.menu.menu, menu); } this.menu=menu; //Chromecast MenuItem mediaRouteItem = menu.findItem( R.id.menuChromecast ); android.support.v7.app.MediaRouteButton mediaRouteButton = (android.support.v7.app.MediaRouteButton) mediaRouteItem.getActionView(); chromecastAddIn = new ChromecastAddin(); chromecastAddIn.onCreate(this, mediaRouteButton); return true; } @Override public boolean onMenuItemSelected(int featureId, MenuItem item) { switch (item.getItemId()) { case R.id.menuSetAs: SlideshowPhoto currentPhoto1 = imageAdapter.getItem(gallery.getSelectedItemPosition()); Analytics.trackPageView(getApplicationContext(), "/setas"); Analytics.trackEvent(getApplicationContext(), "actions", "setas", currentPhoto1.getTitle()); actionSetAsWallpaper(currentPhoto1); return true; case R.id.menuPreferences: Analytics.trackPageView(getApplicationContext(), "/preferences"); Intent iPreferences = new Intent(this, SlideshowPreferences.class); startActivity(iPreferences); return true; case R.id.menuShare: SlideshowPhoto currentPhoto2 = imageAdapter.getItem(gallery.getSelectedItemPosition()); Analytics.trackPageView(getApplicationContext(), "/share"); Analytics.trackEvent(getApplicationContext(), "actions", "share", currentPhoto2.getTitle()); actionSharePhoto(currentPhoto2); return true; case R.id.menuTitle: actionToggleTitle(); return true; case R.id.menuPause: actionPauseSlideshow(); return true; case R.id.menuPlay: actionResumeSlideshow(); return true; default: return super.onMenuItemSelected(featureId, item); } } /** * This method is overwritten inorder to avoid the activity to be reloaded if orientation changes * Has a flag set in android manifest that triggers the method for orientation calls * @see android.app.Activity#onConfigurationChanged(android.content.res.Configuration) */ @Override public void onConfigurationChanged(Configuration newConfig) { // TODO Auto-generated method stub super.onConfigurationChanged(newConfig); } /* (non-Javadoc) * @see android.app.Activity#onPause() */ @Override protected void onPause() { Log.d(LOG_PREFIX, "onPause called"); if(slideshowTimerTask!=null){ slideshowTimerTask.cancel(false); } if(timerDescriptionScrolling!=null){ timerDescriptionScrolling.cancel(); } super.onPause(); } /* (non-Javadoc) * @see android.app.Activity#onStop() */ @Override protected void onStop() { Log.d(LOG_PREFIX, "onStop called"); if(slideshowTimerTask!=null){ //interupt thread if necessary... we need to kill it slideshowTimerTask.cancel(true); } if(fileDownloader!=null && fileDownloader.hasRemainingDownloads()){ Log.d(LOG_PREFIX, "Stopping downloading of photos"); fileDownloader.stop(); } if(timerDescriptionScrolling!=null){ timerDescriptionScrolling.cancel(); } super.onStop(); } /* (non-Javadoc) * @see android.app.Activity#onRestart() */ @Override protected void onRestart() { Log.d(LOG_PREFIX, "onRestart called"); //restarting file download if(fileDownloader!=null && fileDownloader.hasRemainingDownloads()){ Log.d(LOG_PREFIX, "Continuing downloading of photos"); fileDownloader.execute(); } super.onRestart(); } /* (non-Javadoc) * @see android.app.Activity#onResume() */ @Override protected void onResume() { Log.d(LOG_PREFIX, "onResume called"); if(cachedPhotosDeleted){ Intent homeIntent = new Intent(this, SlideshowActivity.class); homeIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); startActivity(homeIntent); super.onResume(); return; } if (isSlideshowRunning){ slideshowTimerTask= new SlideshowTimerTask(); slideshowTimerTask.execute(); } super.onResume(); } /** * Set a photo as the wallpaper (or possibly other apps receiving the intent) * * @param slideshowPhoto */ public void actionSetAsWallpaper(SlideshowPhoto slideshowPhoto){ Uri uri = null; //If it is a drawable resource, handle it different if(slideshowPhoto instanceof SlideshowPhotoDrawable){ Log.i(LOG_PREFIX, "Set as... for one of the first three photos"); //write the file to a cache dir SlideshowPhotoDrawable slideshowPhotoDrawable = (SlideshowPhotoDrawable) slideshowPhoto; //didn't work, as crop gets no access to folder //File cacheDir = getCacheDir(); File cacheDir = new File (rootFileDirectory,"temp"); cacheDir.mkdir(); int drawableId = slideshowPhotoDrawable.getDrawableId(); InputStream inputStream = getResources().openRawResource(drawableId); File cachedPhoto = FileUtils.writeToFile(cacheDir, ""+drawableId+".jpg", inputStream); if(cachedPhoto==null){ notifyUser(getString(R.string.msg_wallpaper_failed_drawable)); return; } uri = Uri.fromFile(cachedPhoto); }else { File filePhoto = new File (rootFileDirectory, slideshowPhoto.getFileName()); uri = Uri.fromFile(filePhoto); } Intent intent = new Intent(); intent.setAction(Intent.ACTION_ATTACH_DATA); String mimeType = "image/jpg"; intent.setDataAndType(uri, mimeType); intent.putExtra("mimeType", mimeType); intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); Log.i(LOG_PREFIX, "Attempting to set photo as wallpaper uri:"+uri); if(AndroidUtils.isGoogleTV(getApplicationContext())){ notifyUser(getString(R.string.msg_wallpaper_googletv)); } startActivity(Intent.createChooser(intent, "Set Photo As")); } /** * Share the provided photo through other android apps * * Will share the image as a image/jpg content type and include title and description as extra * * @param slideshowPhoto */ public void actionSharePhoto(SlideshowPhoto slideshowPhoto){ Log.i(LOG_PREFIX, "Attempting to share photo " + slideshowPhoto); //TODO: Refactor this code.. rather ugly due to some GoogleTV related hacks if(slideshowPhoto!=null){ Intent shareIntent = new Intent(); shareIntent.setAction(Intent.ACTION_SEND); //we assume the type is image/jpg shareIntent.setType("image/jpg"); String sharedText = slideshowPhoto.getTitle()+": "+slideshowPhoto.getDescription() + "\n\n" + getResources().getString(R.string.share_footer); //if we have a cached file, add the stream and the sharedText //if not, add the url and the sharedText if(slideshowPhoto.isCacheExisting(rootFileDirectory)){ String path = "file://" + rootFileDirectory.getAbsolutePath()+"/"+slideshowPhoto.getFileName(); Log.i(LOG_PREFIX, "Attempting to pass stream url " + path); shareIntent.putExtra(Intent.EXTRA_STREAM, Uri.parse(path)); shareIntent.putExtra(Intent.EXTRA_TEXT, sharedText); }else { shareIntent.putExtra(Intent.EXTRA_TEXT, slideshowPhoto.getLargePhoto() + "\n\n"+ sharedText); } shareIntent.putExtra(Intent.EXTRA_SUBJECT,slideshowPhoto.getTitle()); //Start the actual sharing activity try { List<ResolveInfo> relevantActivities=getPackageManager().queryIntentActivities(shareIntent,0); if(AndroidUtils.isGoogleTV(getApplicationContext()) || relevantActivities==null || relevantActivities.size()==0){ Log.i(LOG_PREFIX, "No activity found that can handle image/jpg. Performing simple text share"); Intent backupShareIntent = new Intent(); backupShareIntent.setAction(Intent.ACTION_SEND); backupShareIntent.setType("text/plain"); String backupSharedText = slideshowPhoto.getLargePhoto() +"\n\n"+ sharedText; backupShareIntent.putExtra(Intent.EXTRA_TEXT,backupSharedText ); startActivity(backupShareIntent); }else { startActivity(shareIntent); } }catch (ActivityNotFoundException e) { notifyUser("Unable to share current photo"); } }else { notifyUser("Unable to share current photo"); } } /* (non-Javadoc) * @see android.app.Activity#onKeyDown(int, android.view.KeyEvent) */ @Override public boolean onKeyDown(int keyCode, KeyEvent event) { Log.d(LOG_PREFIX, "Keyevent in activity"+ keyCode); //Basically some key-aliases for GoogleTV buttons switch (keyCode) { //hardcoded some keyevents in order to support 2.1 //case KeyEvent.KEYCODE_MEDIA_STOP: //case KeyEvent.KEYCODE_MEDIA_PAUSE: case 86: case 127: actionPauseSlideshow(); return true; //case KeyEvent.KEYCODE_MEDIA_PLAY: case 126: actionResumeSlideshow(); return true; case KeyEvent.KEYCODE_MEDIA_NEXT: case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD: userCreatedTouchEvent=true; gallery.onKeyDown(KeyEvent.KEYCODE_DPAD_RIGHT, new KeyEvent(0,0)); return true; case KeyEvent.KEYCODE_MEDIA_PREVIOUS: case KeyEvent.KEYCODE_MEDIA_REWIND: userCreatedTouchEvent=true; gallery.onKeyDown(KeyEvent.KEYCODE_DPAD_LEFT, new KeyEvent(0,0)); return true; default: Log.d(LOG_PREFIX, "Unhandled keyevent "+ keyCode); break; } return super.onKeyDown(keyCode, event); } @Override public void onSharedPreferenceChanged( SharedPreferences sharedPreferences, String key) { if(SlideshowPreferences.KEY_DO_DELETE_CACHE.equals(key)){ //reset photos notifyUser(getString(R.string.msg_cachedphotos_slideshow)); Intent intent = new Intent(Intent.ACTION_MAIN); intent.addCategory(Intent.CATEGORY_HOME); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(intent); cachedPhotosDeleted=true; /*ArrayList<SlideshowPhoto> cachedDrawables = new ArrayList<SlideshowPhoto>(10); SlideshowPhoto initialPhoto = new SlideshowPhotoDrawable(this,"title", "description",R.drawable.trey3); cachedDrawables.add(initialPhoto); //TODO: Find better way for the rootFile to be passed around imageAdapter=null; imageAdapter=new ImageAdapter(this,0,cachedDrawables,rootFileDirectory); gallery.setAdapter(imageAdapter); gallery.setSelection(0); new PhotoUrlsTask().execute();*/ }else if(SlideshowPreferences.KEY_TRANSITION_TYPE.equals(key)){ boolean doCustomTransition= SlideshowPreferences.doCustomTransition(getApplicationContext()); //if doTransition, we should normally check which transition and set the corresponding //in and out animations on the gallery. Currently we have only one, so we skip it gallery.setDoCustomTransition(doCustomTransition); }else if(SlideshowPreferences.KEY_DISPLAY_TITLE.equals(key)){ boolean doDisplayPhotoTitle= SlideshowPreferences.doDisplayPhotoTitle(getApplicationContext()); imageAdapter.setDoDisplayPhotoTitle(doDisplayPhotoTitle); }else if(SlideshowPreferences.KEY_DO_DOWNLOAD_ON_3G.equals(key)){ //attempt to download photos again new PhotoUrlsTask().execute(); } } /** * Scroll to the next photo. If we reach the end, let's start over */ public void actionNextPhoto(){ CustomGallery gallery = (CustomGallery) findViewById(R.id.gallery); if(gallery==null){ Log.w(LOG_PREFIX, "Gallery view is not found in actionNextPhoto! Let's make sure this doesn't crash the app"); return; } if(userCreatedTouchEvent || gallery.hasUserCreatedTouchEvent()){ Log.i(LOG_PREFIX, "User created a touch even since time task started. Will not skip to next photo yet"); return; } //Log.i(LOG_PREFIX, "Selected position is " + gallery.getSelectedItemPosition()+ " out of "+ gallery.getCount()); //TODO: Evaluate if we should add all queued photos if we are almost at the end if(gallery.getSelectedItemPosition()+1 == gallery.getCount()){ Log.i(LOG_PREFIX, "At the end of the slideshow. Starting on the first photo again"); Analytics.trackEvent(getApplicationContext(), "actions", "slideshow", "cycles-free"); gallery.setSelection(0); }else {//skip to next photo gallery.onKeyDown(KeyEvent.KEYCODE_DPAD_RIGHT, new KeyEvent(0,0)); } } public void actionToggleTitle(){ Analytics.trackEvent(getApplicationContext(), "actions", "slideshow", "tittle-toggle"); Log.d(LOG_PREFIX, "action Toggle Title"); //we need the adapter to change the display title setting CustomGallery gallery = (CustomGallery) findViewById(R.id.gallery); View selectedView = gallery.getSelectedView(); ImageAdapter adapter=null; if(gallery==null || selectedView==null || gallery.getAdapter() instanceof ImageAdapter==false){ Log.w(LOG_PREFIX, "Gallery view is not found in actionNextPhoto or adapter is of wrong instance! Let's make sure this doesn't crash the app"); return; } adapter= (ImageAdapter)gallery.getAdapter(); TextView slideshowTitle = (TextView)selectedView.findViewById(R.id.slideshow_title); if(slideshowTitle==null){ Log.w(LOG_PREFIX, "slideshowTitle is null. Cannot change visibility"); return; } int currentVisibility=slideshowTitle.getVisibility(); int newVisibility=0; if(currentVisibility==View.INVISIBLE){ newVisibility=View.VISIBLE; setVisibilityOfSlideshowText(selectedView, newVisibility); adapter.setDoDisplayPhotoTitle(true); }else { newVisibility=View.INVISIBLE; setVisibilityOfSlideshowText(selectedView, newVisibility); adapter.setDoDisplayPhotoTitle(false); } //trick to get cached views to update themselves //adapter.notifyDataSetChanged(); //let's extend the time untill the photo changes userCreatedTouchEvent=true; //View nextView = gallery.getChildAt(gallery.getSelectedItemPosition()+1); //setVisibilityOfSlideshowText(nextView, newVisibility); } public static void setVisibilityOfSlideshowText(View slideshowView, int viewVisibilitiy){ if(slideshowView==null){ return; } //let's get the views we want to toggle visibility on //the values are already populated TextView slideshowTitle = (TextView)slideshowView.findViewById(R.id.slideshow_title); TextSwitcher slideshowDescription =(TextSwitcher)slideshowView.findViewById(R.id.slideshow_description); View layout= (View)slideshowView.findViewById(R.id.slideshow_text_background); if(slideshowTitle==null ||slideshowDescription==null|| layout==null ){ Log.w(LOG_PREFIX, "Some of the views we want to toggle are null in setVisibilityOfSlideshowText! Let's make sure this doesn't crash the app"); return; } //do nothing if we have an empty title if(slideshowTitle.getText()==null|| "".equals(slideshowTitle.getText())){ return; } if(viewVisibilitiy==View.VISIBLE){ //Log.d(LOG_PREFIX, "TITLE VISIBLE"); slideshowTitle.setVisibility(View.VISIBLE); slideshowDescription.setVisibility(View.VISIBLE); layout.setVisibility(View.VISIBLE); }else { //Log.d(LOG_PREFIX, "TITLE INVISIBLE"); slideshowTitle.setVisibility(View.INVISIBLE); slideshowDescription.setVisibility(View.INVISIBLE); layout.setVisibility(View.INVISIBLE); } } public void setUpScrollingOfDescription(){ final CustomGallery gallery = (CustomGallery) findViewById(R.id.gallery); //use the same timer. Cancel if running if(timerDescriptionScrolling!=null){ timerDescriptionScrolling.cancel(); } timerDescriptionScrolling = new Timer("TextScrolling"); final Activity activity = this; long msBetweenSwaps=3500; //schedule this to timerDescriptionScrolling.scheduleAtFixedRate( new TimerTask() { int i=0; public void run() { activity.runOnUiThread(new Runnable() { public void run() { SlideshowPhoto currentSlideshowPhoto = (SlideshowPhoto)imageAdapter.getItem(gallery.getSelectedItemPosition()); View currentRootView = gallery.getSelectedView(); TextSwitcher switcherDescription = (TextSwitcher)currentRootView.findViewById(R.id.slideshow_description); updateScrollingDescription(currentSlideshowPhoto,switcherDescription); //this is the max times we will swap (to make sure we don't create an infinite timer by mistake if(i>30){ timerDescriptionScrolling.cancel(); } i++; } }); } }, msBetweenSwaps, msBetweenSwaps); } private void updateScrollingDescription(SlideshowPhoto currentSlideshowPhoto, TextSwitcher switcherDescription){ String description = currentSlideshowPhoto.getDescription(); TextView descriptionView = ((TextView)switcherDescription.getCurrentView()); //avoid nullpointer exception if(descriptionView==null || descriptionView.getLayout()==null){ return; } //note currentDescription may contain more text that is shown (but is always a substring String currentDescription = descriptionView.getText().toString(); if(currentDescription == null || description==null){ return; } int indexEndCurrentDescription= descriptionView.getLayout().getLineEnd(1); //if we are not displaying all characters, let swap to the not displayed substring if(indexEndCurrentDescription>0 && indexEndCurrentDescription<currentDescription.length()){ String newDescription = currentDescription.substring(indexEndCurrentDescription); switcherDescription.setText(newDescription); }else if(indexEndCurrentDescription>=currentDescription.length() && indexEndCurrentDescription<description.length()){ //if we are displaying the last of the text, but the text has multiple sections. Display the first one again switcherDescription.setText(description); }else { //do nothing (ie. leave the text) } } public void actionNextTimerTask() { if(isSlideshowRunning){ userCreatedTouchEvent=false; gallery.setUserCreatedTouchEvent(false); slideshowTimerTask = new SlideshowTimerTask(); slideshowTimerTask.execute(); } } public void actionPauseSlideshow(){ isSlideshowRunning=false; slideshowTimerTask=null; menu.setGroupVisible(R.id.menuGroupPaused, true); menu.setGroupVisible(R.id.menuGroupPlaying, false); Toast.makeText(this, R.string.msg_pause_slideshow, Toast.LENGTH_SHORT).show(); } public void actionResumeSlideshow(){ isSlideshowRunning=true; slideshowTimerTask = new SlideshowTimerTask(); slideshowTimerTask.execute(); menu.setGroupVisible(R.id.menuGroupPaused, false); menu.setGroupVisible(R.id.menuGroupPlaying, true); Toast.makeText(this, R.string.msg_resume_slideshow, Toast.LENGTH_SHORT).show(); } /** * Called when the list of all photos have been downloaded from backend * * * @param slideShowPhotos Photos in the feed, may not exist in cache yet */ private void actionOnPhotoUrlsDownloaded(List<SlideshowPhoto> slideShowPhotos) { Log.i(LOG_PREFIX, "Photo gallery definition downloaded, now looking through the results" ); //Let's add the existing one to the adapter immediately, and send the other to the FileDownloader ArrayList<DownloadableObject> notCachedPhotos = new ArrayList<DownloadableObject>(100); ArrayList<SlideshowPhoto> cachedPhotos = new ArrayList<SlideshowPhoto>(200); for (Iterator<SlideshowPhoto> iterator = slideShowPhotos.iterator(); iterator .hasNext();) { SlideshowPhoto slideshowPhoto = iterator.next(); if(slideshowPhoto.isCacheExisting(rootFileDirectory)){ cachedPhotos.add(slideshowPhoto); }else { notCachedPhotos.add(slideshowPhoto); } } if(cachedPhotos.size()>0) { //lets randomize all the cached photos long seed = System.nanoTime(); Collections.shuffle(cachedPhotos, new Random(seed)); addSlideshowPhoto(cachedPhotos); } if(notCachedPhotos.size()>0){ //Rules for download //1. Never download on roaming if(AndroidUtils.isConnectedRoaming(getApplicationContext())){ notifyUser(getString(R.string.msg_connected_roaming)); return; } boolean connectOn3G = SlideshowPreferences.doDownloadOn3G(getApplicationContext()); boolean isConnectedToWifi = AndroidUtils.isConnectedToWifi(getApplicationContext()); boolean isConnectedToWired = AndroidUtils.isConnectedToWired(getApplicationContext()); //2. Do not download if not connected to Wifi and user has not changed connect to Wifi setting if(isConnectedToWifi==false && isConnectedToWired==false && connectOn3G==false){ if(AndroidUtils.isGoogleTV(getApplicationContext())){ String msg = "On GoogleTV, but not connected to wifi or wired. Ignoring this. WifiCon="+isConnectedToWifi+ " WiredCon="+isConnectedToWired; Log.w(LOG_PREFIX, msg); isConnectedToWifi=true; }else { notifyUser(getString(R.string.msg_connected_mobile)); } } //3. Connect if on wifi or if not connected to wifi and wifi setting is changed if((isConnectedToWifi==true||isConnectedToWired==true) || connectOn3G==true){ Log.i(LOG_PREFIX, "Downloading photos. ConnectedToWifi=" +isConnectedToWifi + " ConnectOn3G="+connectOn3G ); //lets randomize all the non-cached photos long seed = System.nanoTime(); Collections.shuffle(notCachedPhotos, new Random(seed)); fileDownloader = new FileDownloader(this.getBaseContext(), this, rootFileDirectory, notCachedPhotos); fileDownloader.execute(); } }else { Log.i(LOG_PREFIX, "No new photos to download"); } } /** * Method called if the download of the photo urls failed. * Should revert to only cached photos * */ private void actionOnPhotoUrlsFailed(){ notifyUser(getString(R.string.msg_unableto_connect)); ArrayList<SlideshowPhoto> cachedPhotos = new ArrayList<SlideshowPhoto>(200); File[] filePhotos = rootFileDirectory.listFiles(); if(filePhotos!=null){ for (int i = 0; i < filePhotos.length; i++) { cachedPhotos.add(new SlideshowPhotoCached(getApplicationContext(), filePhotos[i])); } if(cachedPhotos.size()>0) { addSlideshowPhoto(cachedPhotos); } } } @Override public void onDownloadCompleted(DownloadableObject downloadableObject) { //unsafe cast, but we have control SlideshowPhoto slideshowPhoto= (SlideshowPhoto)downloadableObject; if(queuedSlideshowPhotos==null){ queuedSlideshowPhotos=new ArrayList<SlideshowPhoto>(20); } queuedSlideshowPhotos.add(slideshowPhoto); //we want to add the slideshow photos as seldom as possible, as it creates a refresh of views if(gallery.getCount()<=5 &&queuedSlideshowPhotos.size() >=5 ){ addSlideshowPhoto(queuedSlideshowPhotos); queuedSlideshowPhotos=null; }else if(gallery.getCount()-gallery.getSelectedItemPosition()<=3 && queuedSlideshowPhotos.size()>=10){ addSlideshowPhoto(queuedSlideshowPhotos); queuedSlideshowPhotos=null; }else if(queuedSlideshowPhotos.size()>=50){ addSlideshowPhoto(queuedSlideshowPhotos); queuedSlideshowPhotos=null; } } @Override public void onDownloadError(DownloadableObject downloadableObject) { SlideshowPhoto slideshowPhoto= (SlideshowPhoto)downloadableObject; Log.w(LOG_PREFIX, "Unable to download slideshow photo with large photo url "+ slideshowPhoto.getLargePhoto()); } public void onAllDownloadsFailed (String message){ notifyUser(message); } @Override public void onAllDownloadsCompleted() { if(queuedSlideshowPhotos!=null){ addSlideshowPhoto(queuedSlideshowPhotos); queuedSlideshowPhotos=null; } } public void addSlideshowPhoto(SlideshowPhoto slideshowPhoto){ imageAdapter.add(slideshowPhoto); imageAdapter.notifyDataSetChanged(); } public void addSlideshowPhoto(List<SlideshowPhoto> slideshowPhotos){ Log.i(LOG_PREFIX,"Adding "+ slideshowPhotos.size()+" photos to the slideshow"); //addAll is API 11+ //imageAdapter.addAll(slideshowPhotos); for (Iterator<SlideshowPhoto> iterator = slideshowPhotos.iterator(); iterator .hasNext();) { imageAdapter.add( (SlideshowPhoto) iterator.next()); } imageAdapter.notifyDataSetChanged(); } protected void notifyUser(CharSequence msg) { Toast.makeText(this, msg, Toast.LENGTH_LONG).show(); } /** * Asynch task for displaying a new photo at a regular interval * */ public class SlideshowTimerTask extends AsyncTask<Void, Void, Void> { long sleepMS=15000; public SlideshowTimerTask(){ sleepMS=SlideshowPreferences.getDisplayTimeMS(getApplicationContext()); } protected void onPostExecute(Void result) { super.onPostExecute(result); if(isSlideshowRunning){ actionNextPhoto(); actionNextTimerTask(); } } @Override protected Void doInBackground(Void... arg0) { try { Thread.sleep(sleepMS); } catch (InterruptedException ie) { Log.d(LOG_PREFIX, "SlideshowTimerTask received InterruptedException", ie); } // TODO Auto-generated method stub return null; } /* (non-Javadoc) * @see android.os.AsyncTask#onCancelled() */ @Override protected void onCancelled() { Log.d(LOG_PREFIX, "SlideshowTimerTask onCancelled called"); super.onCancelled(); } } /** * Asynch task for retrieving photo urls from the backend * */ public class PhotoUrlsTask extends AsyncTask<Void, Void, Void> { String photoUrls[]; Throwable exception=null; List<SlideshowPhoto> slideshowPhotos; @Override protected Void doInBackground(Void... arg0) { try { //TODO-FORK Update flickr public photo set id String flickrPhotosetID = "72157628899979341"; slideshowPhotos = new FlickrPublicSetBackend(flickrPhotosetID).getSlideshowPhotos(getBaseContext()); //slideshowPhotos = new OPMLBackend().getSlideshowPhotos(getBaseContext()); } catch (Throwable e) { Log.w(LOG_PREFIX, "Got exception while downloading photos",e); exception=e; } return null; } @Override protected void onPostExecute(Void result) { //TODO: Handle failure to download if(exception==null && slideshowPhotos!=null){ actionOnPhotoUrlsDownloaded(slideshowPhotos); }else { actionOnPhotoUrlsFailed(); } /*if(photoUrls!=null){ Toast.makeText(getBaseContext(), "Found " + photoUrls.length + " photos from StuckInCustoms", Toast.LENGTH_SHORT).show(); for (int i = 0; i < photoUrls.length && i<4; i++) { Log.i("SmugMug", photoUrls[i]); new AddDrawableTask(photoUrls[i]).execute(); } }*/ } } @Override public void onAsyncReadComplete(AsyncQueueableObject queueableObject) { //ignore this event } @Override public void addToAsyncReadQueue(AsyncQueueableObject asyncObject) { asyncReadQueue.add(asyncObject); } @Override public int getScreenWidth() { return screenWidthPx; } @Override public int getScreenHeight() { return screenHeightPx; } }