WidgetPreviewLoader.java revision 05713af127d765cc28a8b2fd548a90347c90d6cb
105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkapackage com.android.launcher2; 205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.appwidget.AppWidgetProviderInfo; 405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.content.ComponentName; 505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.content.ContentValues; 605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.content.Context; 705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.content.pm.PackageManager; 805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.content.pm.ResolveInfo; 905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.content.res.Resources; 1005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.database.Cursor; 1105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.database.sqlite.SQLiteDatabase; 1205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.database.sqlite.SQLiteOpenHelper; 1305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.graphics.Bitmap; 1405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.graphics.Bitmap.Config; 1505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.graphics.BitmapFactory; 1605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.graphics.Canvas; 1705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.graphics.ColorMatrix; 1805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.graphics.ColorMatrixColorFilter; 1905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.graphics.Paint; 2005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.graphics.PorterDuff; 2105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.graphics.Rect; 2205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.graphics.Shader; 2305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.graphics.drawable.BitmapDrawable; 2405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.graphics.drawable.Drawable; 2505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.os.AsyncTask; 2605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.util.Log; 2705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 2805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport com.android.launcher.R; 2905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 3005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport java.io.ByteArrayOutputStream; 3105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport java.io.File; 3205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport java.lang.ref.SoftReference; 3305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport java.lang.ref.WeakReference; 3405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport java.util.ArrayList; 3505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport java.util.HashMap; 3605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport java.util.HashSet; 3705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 3805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaabstract class SoftReferenceThreadLocal<T> { 3905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private ThreadLocal<SoftReference<T>> mThreadLocal; 4005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public SoftReferenceThreadLocal() { 4105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mThreadLocal = new ThreadLocal<SoftReference<T>>(); 4205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 4305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 4405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka abstract T initialValue(); 4505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 4605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public void set(T t) { 4705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mThreadLocal.set(new SoftReference<T>(t)); 4805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 4905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 5005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public T get() { 5105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka SoftReference<T> reference = mThreadLocal.get(); 5205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka T obj; 5305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (reference == null) { 5405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka obj = initialValue(); 5505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mThreadLocal.set(new SoftReference<T>(obj)); 5605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return obj; 5705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } else { 5805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka obj = reference.get(); 5905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (obj == null) { 6005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka obj = initialValue(); 6105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mThreadLocal.set(new SoftReference<T>(obj)); 6205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 6305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return obj; 6405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 6505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 6605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka} 6705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 6805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaclass CanvasCache extends SoftReferenceThreadLocal<Canvas> { 6905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka @Override 7005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka protected Canvas initialValue() { 7105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return new Canvas(); 7205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 7305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka} 7405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 7505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaclass PaintCache extends SoftReferenceThreadLocal<Paint> { 7605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka @Override 7705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka protected Paint initialValue() { 7805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return null; 7905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 8005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka} 8105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 8205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaclass BitmapCache extends SoftReferenceThreadLocal<Bitmap> { 8305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka @Override 8405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka protected Bitmap initialValue() { 8505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return null; 8605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 8705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka} 8805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 8905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaclass RectCache extends SoftReferenceThreadLocal<Rect> { 9005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka @Override 9105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka protected Rect initialValue() { 9205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return new Rect(); 9305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 9405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka} 9505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 9605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaclass BitmapFactoryOptionsCache extends SoftReferenceThreadLocal<BitmapFactory.Options> { 9705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka @Override 9805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka protected BitmapFactory.Options initialValue() { 9905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return new BitmapFactory.Options(); 10005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 10105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka} 10205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 10305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkapublic class WidgetPreviewLoader { 10405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka static final String TAG = "WidgetPreviewLoader"; 10505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 10605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private int mPreviewBitmapMaxWidth; 10705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private int mPreviewBitmapMaxHeight; 10805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private String mSize; 10905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private Context mContext; 11005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private Launcher mLauncher; 11105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private PackageManager mPackageManager; 11205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private PagedViewCellLayout mWidgetSpacingLayout; 11305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 11405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // Used for drawing shortcut previews 11505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private BitmapCache mCachedShortcutPreviewBitmap = new BitmapCache(); 11605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private PaintCache mCachedShortcutPreviewPaint = new PaintCache(); 11705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private CanvasCache mCachedShortcutPreviewCanvas = new CanvasCache(); 11805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 11905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // Used for drawing widget previews 12005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private CanvasCache mCachedAppWidgetPreviewCanvas = new CanvasCache(); 12105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private RectCache mCachedAppWidgetPreviewSrcRect = new RectCache(); 12205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private RectCache mCachedAppWidgetPreviewDestRect = new RectCache(); 12305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private PaintCache mCachedAppWidgetPreviewPaint = new PaintCache(); 12405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private String mCachedSelectQuery; 12505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private BitmapFactoryOptionsCache mCachedBitmapFactoryOptions = new BitmapFactoryOptionsCache(); 12605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 12705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private int mAppIconSize; 12805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private IconCache mIconCache; 12905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 13005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private final float sWidgetPreviewIconPaddingPercentage = 0.25f; 13105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 13205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private WidgetPreviewCacheDb mDb; 13305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 13405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private static HashMap<String, WeakReference<Bitmap>> sLoadedPreviews; 13505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private static ArrayList<SoftReference<Bitmap>> sUnusedBitmaps; 13605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private static HashSet<String> sInvalidPackages; 13705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 13805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka static { 13905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka sLoadedPreviews = new HashMap<String, WeakReference<Bitmap>>(); 14005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka sUnusedBitmaps = new ArrayList<SoftReference<Bitmap>>(); 14105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka sInvalidPackages = new HashSet<String>(); 14205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 14305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 14405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public WidgetPreviewLoader(int previewWidth, int previewHeight, 14505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Launcher launcher, PagedViewCellLayout widgetSpacingLayout) { 14605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mPreviewBitmapMaxWidth = previewWidth; 14705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mPreviewBitmapMaxHeight = previewHeight; 14805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mSize = previewWidth + "x" + previewHeight; 14905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mContext = mLauncher = launcher; 15005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mPackageManager = mContext.getPackageManager(); 15105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mAppIconSize = mContext.getResources().getDimensionPixelSize(R.dimen.app_icon_size); 15205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mIconCache = ((LauncherApplication) launcher.getApplicationContext()).getIconCache(); 15305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mWidgetSpacingLayout = widgetSpacingLayout; 15405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mDb = new WidgetPreviewCacheDb(mContext); 15505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 15605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 15705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public Bitmap getPreview(final Object o) { 15805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka String name = getObjectName(o); 15905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // check if the package is valid 16005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka boolean packageValid = true; 16105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka synchronized(sInvalidPackages) { 16205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka packageValid = !sInvalidPackages.contains(getObjectPackage(o)); 16305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 16405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (!packageValid) { 16505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return null; 16605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 16705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (packageValid) { 16805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka synchronized(sLoadedPreviews) { 16905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // check if it exists in our existing cache 17005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (sLoadedPreviews.containsKey(name) && sLoadedPreviews.get(name).get() != null) { 17105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return sLoadedPreviews.get(name).get(); 17205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 17305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 17405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 17505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 17605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Bitmap unusedBitmap = null; 17705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka synchronized(sUnusedBitmaps) { 17805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // not in cache; we need to load it from the db 17905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka while ((unusedBitmap == null || !unusedBitmap.isMutable()) 18005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka && sUnusedBitmaps.size() > 0) { 18105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka unusedBitmap = sUnusedBitmaps.remove(0).get(); 18205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 18305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (unusedBitmap != null) { 18405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final Canvas c = mCachedAppWidgetPreviewCanvas.get(); 18505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.setBitmap(unusedBitmap); 18605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.drawColor(0, PorterDuff.Mode.CLEAR); 18705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.setBitmap(null); 18805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 18905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 19005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 19105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (unusedBitmap == null) { 19205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka unusedBitmap = Bitmap.createBitmap(mPreviewBitmapMaxWidth, mPreviewBitmapMaxHeight, 19305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Bitmap.Config.ARGB_8888); 19405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 19505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 19605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Bitmap preview = null; 19705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 19805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (packageValid) { 19905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka preview = readFromDb(name, unusedBitmap); 20005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 20105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 20205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (preview != null) { 20305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka synchronized(sLoadedPreviews) { 20405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka sLoadedPreviews.put(name, new WeakReference<Bitmap>(preview)); 20505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 20605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return preview; 20705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } else { 20805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // it's not in the db... we need to generate it 20905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final Bitmap generatedPreview = generatePreview(o, unusedBitmap); 21005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka preview = generatedPreview; 21105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (preview != unusedBitmap) { 21205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka throw new RuntimeException("generatePreview is not recycling the bitmap " + o); 21305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 21405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 21505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka synchronized(sLoadedPreviews) { 21605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka sLoadedPreviews.put(name, new WeakReference<Bitmap>(preview)); 21705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 21805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 21905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // write to db on a thread pool... this can be done lazily and improves the performance 22005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // of the first time widget previews are loaded 22105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka new AsyncTask<Void, Void, Void>() { 22205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public Void doInBackground(Void ... args) { 22305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka writeToDb(o, generatedPreview); 22405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return null; 22505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 22605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, (Void) null); 22705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 22805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return preview; 22905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 23005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 23105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 23205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public static void releaseBitmap(Object o, Bitmap bitmapToFree) { 23305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // enable this code when doDecode doesn't force Bitmaps to become immutable 23405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka String name = getObjectName(o); 23505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka synchronized(sLoadedPreviews) { 23605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka synchronized(sUnusedBitmaps) { 23705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Bitmap b = sLoadedPreviews.get(name).get(); 23805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (b == bitmapToFree) { 23905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka sLoadedPreviews.remove(name); 24005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (bitmapToFree.isMutable()) { 24105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka sUnusedBitmaps.add(new SoftReference<Bitmap>(b)); 24205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 24305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } else { 24405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka throw new RuntimeException("Bitmap passed in doesn't match up"); 24505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 24605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 24705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 24805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 24905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 25005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka static class WidgetPreviewCacheDb extends SQLiteOpenHelper { 25105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final static int DB_VERSION = 1; 25205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final static String DB_NAME = "widgetpreviews.db"; 25305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final static String TABLE_NAME = "shortcut_and_widget_previews"; 25405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final static String COLUMN_NAME = "name"; 25505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final static String COLUMN_SIZE = "size"; 25605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final static String COLUMN_PREVIEW_BITMAP = "preview_bitmap"; 25705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Context mContext; 25805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 25905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public WidgetPreviewCacheDb(Context context) { 26005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka super(context, new File(context.getCacheDir(), DB_NAME).getPath(), null, DB_VERSION); 26105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // Store the context for later use 26205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mContext = context; 26305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 26405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 26505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka @Override 26605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public void onCreate(SQLiteDatabase database) { 26705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka database.execSQL("CREATE TABLE " + TABLE_NAME + " (" + 26805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka COLUMN_NAME + " TEXT NOT NULL, " + 26905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka COLUMN_SIZE + " TEXT NOT NULL, " + 27005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka COLUMN_PREVIEW_BITMAP + " BLOB NOT NULL, " + 27105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka "PRIMARY KEY (" + COLUMN_NAME + ", " + COLUMN_SIZE + ") " + 27205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka ");"); 27305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 27405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 27505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka @Override 27605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { 27705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // We are still only on version 1 27805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 27905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 28005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 28105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private static final String WIDGET_PREFIX = "Widget:"; 28205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private static final String SHORTCUT_PREFIX = "Shortcut:"; 28305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 28405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private static String getObjectName(Object o) { 28505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // should cache the string builder 28605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka StringBuilder sb = new StringBuilder(); 28705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka String output; 28805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (o instanceof AppWidgetProviderInfo) { 28905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka sb.append(WIDGET_PREFIX); 29005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka sb.append(((AppWidgetProviderInfo) o).provider.flattenToString()); 29105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka output = sb.toString(); 29205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka sb.setLength(0); 29305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } else { 29405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka sb.append(SHORTCUT_PREFIX); 29505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 29605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka ResolveInfo info = (ResolveInfo) o; 29705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka sb.append(new ComponentName(info.activityInfo.packageName, 29805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka info.activityInfo.name).flattenToString()); 29905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka output = sb.toString(); 30005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka sb.setLength(0); 30105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 30205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return output; 30305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 30405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 30505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private String getObjectPackage(Object o) { 30605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (o instanceof AppWidgetProviderInfo) { 30705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return ((AppWidgetProviderInfo) o).provider.getPackageName(); 30805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } else { 30905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka ResolveInfo info = (ResolveInfo) o; 31005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return info.activityInfo.packageName; 31105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 31205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 31305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 31405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private void writeToDb(Object o, Bitmap preview) { 31505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka String name = getObjectName(o); 31605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka SQLiteDatabase db = mDb.getWritableDatabase(); 31705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka ContentValues values = new ContentValues(); 31805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 31905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka values.put(WidgetPreviewCacheDb.COLUMN_NAME, name); 32005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka ByteArrayOutputStream stream = new ByteArrayOutputStream(); 32105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka preview.compress(Bitmap.CompressFormat.PNG, 100, stream); 32205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka values.put(WidgetPreviewCacheDb.COLUMN_PREVIEW_BITMAP, stream.toByteArray()); 32305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka values.put(WidgetPreviewCacheDb.COLUMN_SIZE, mSize); 32405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka db.insert(WidgetPreviewCacheDb.TABLE_NAME, null, values); 32505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 32605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 32705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public static void removeFromDb(final Context mContext, final String packageName) { 32805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka synchronized(sInvalidPackages) { 32905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka sInvalidPackages.add(packageName); 33005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 33105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka new AsyncTask<Void, Void, Void>() { 33205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public Void doInBackground(Void ... args) { 33305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka SQLiteDatabase db = new WidgetPreviewCacheDb(mContext).getWritableDatabase(); 33405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka db.delete(WidgetPreviewCacheDb.TABLE_NAME, 33505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka WidgetPreviewCacheDb.COLUMN_NAME + " LIKE ? OR " + 33605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka WidgetPreviewCacheDb.COLUMN_NAME + " LIKE ?", // SELECT query 33705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka new String[] { 33805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka WIDGET_PREFIX + packageName + "/%", 33905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka SHORTCUT_PREFIX + packageName + "/%"} // args to SELECT query 34005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka ); 34105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka db.close(); 34205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka synchronized(sInvalidPackages) { 34305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka sInvalidPackages.remove(packageName); 34405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 34505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return null; 34605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 34705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, (Void) null); 34805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 34905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 35005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private Bitmap readFromDb(String name, Bitmap b) { 35105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (mCachedSelectQuery == null) { 35205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mCachedSelectQuery = WidgetPreviewCacheDb.COLUMN_NAME + " = ? AND " + 35305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka WidgetPreviewCacheDb.COLUMN_SIZE + " = ?"; 35405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 35505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka SQLiteDatabase db = mDb.getReadableDatabase(); 35605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Cursor result = db.query(WidgetPreviewCacheDb.TABLE_NAME, 35705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka new String[] { WidgetPreviewCacheDb.COLUMN_PREVIEW_BITMAP }, // cols to return 35805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mCachedSelectQuery, // select query 35905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka new String[] { name, mSize }, // args to select query 36005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka null, 36105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka null, 36205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka null, 36305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka null); 36405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (result.getCount() > 0) { 36505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka result.moveToFirst(); 36605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka byte[] blob = result.getBlob(0); 36705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka result.close(); 36805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final BitmapFactory.Options opts = mCachedBitmapFactoryOptions.get(); 36905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka opts.inBitmap = b; 37005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka opts.inSampleSize = 1; 37105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Bitmap out = BitmapFactory.decodeByteArray(blob, 0, blob.length, opts); 37205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return out; 37305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } else { 37405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka result.close(); 37505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return null; 37605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 37705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 37805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 37905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public Bitmap generatePreview(Object info, Bitmap preview) { 38005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (preview != null && 38105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka (preview.getWidth() != mPreviewBitmapMaxWidth || 38205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka preview.getHeight() != mPreviewBitmapMaxHeight)) { 38305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka throw new RuntimeException("Improperly sized bitmap passed as argument"); 38405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 38505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (info instanceof AppWidgetProviderInfo) { 38605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return generateWidgetPreview((AppWidgetProviderInfo) info, preview); 38705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } else { 38805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return generateShortcutPreview( 38905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka (ResolveInfo) info, mPreviewBitmapMaxWidth, mPreviewBitmapMaxHeight, preview); 39005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 39105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 39205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 39305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public Bitmap generateWidgetPreview(AppWidgetProviderInfo info, Bitmap preview) { 39405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // should just read what's in the DB, and return it 39505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // what's the method that's used? 39605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // going to have to track down more or less how the DB stuff works 39705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // when you long click on something, we're going to have to load the bigger preview at that 39805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // time (worry about it later) 39905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int[] cellSpans = Launcher.getSpanForWidget(mLauncher, info); 40005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int maxWidth = maxWidthForWidgetPreview(cellSpans[0]); 40105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int maxHeight = maxHeightForWidgetPreview(cellSpans[1]); 40205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return generateWidgetPreview(info.provider, info.previewImage, info.icon, 40305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka cellSpans[0], cellSpans[1], maxWidth, maxHeight, preview, null); 40405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 40505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 40605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public int maxWidthForWidgetPreview(int spanX) { 40705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return Math.min(mPreviewBitmapMaxWidth, 40805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mWidgetSpacingLayout.estimateCellWidth(spanX)); 40905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 41005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 41105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public int maxHeightForWidgetPreview(int spanY) { 41205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return Math.min(mPreviewBitmapMaxHeight, 41305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mWidgetSpacingLayout.estimateCellHeight(spanY)); 41405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 41505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 41605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public Bitmap generateWidgetPreview(ComponentName provider, int previewImage, 41705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int iconId, int cellHSpan, int cellVSpan, int maxPreviewWidth, int maxPreviewHeight, 41805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Bitmap preview, int[] preScaledWidthOut) { 41905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // Load the preview image if possible 42005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka String packageName = provider.getPackageName(); 42105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (maxPreviewWidth < 0) maxPreviewWidth = Integer.MAX_VALUE; 42205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (maxPreviewHeight < 0) maxPreviewHeight = Integer.MAX_VALUE; 42305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 42405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Drawable drawable = null; 42505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (previewImage != 0) { 42605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka drawable = mPackageManager.getDrawable(packageName, previewImage, null); 42705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (drawable == null) { 42805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Log.w(TAG, "Can't load widget preview drawable 0x" + 42905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Integer.toHexString(previewImage) + " for provider: " + provider); 43005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 43105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 43205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 43305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int previewWidth; 43405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int previewHeight; 43505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Bitmap defaultPreview = null; 43605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka boolean widgetPreviewExists = (drawable != null); 43705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (widgetPreviewExists) { 43805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka previewWidth = drawable.getIntrinsicWidth(); 43905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka previewHeight = drawable.getIntrinsicHeight(); 44005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } else { 44105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // Generate a preview image if we couldn't load one 44205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (cellHSpan < 1) cellHSpan = 1; 44305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (cellVSpan < 1) cellVSpan = 1; 44405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 44505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka BitmapDrawable previewDrawable = (BitmapDrawable) mContext.getResources() 44605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka .getDrawable(R.drawable.widget_preview_tile); 44705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final int previewDrawableWidth = previewDrawable 44805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka .getIntrinsicWidth(); 44905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final int previewDrawableHeight = previewDrawable 45005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka .getIntrinsicHeight(); 45105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka previewWidth = previewDrawableWidth * cellHSpan; // subtract 2 dips 45205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka previewHeight = previewDrawableHeight * cellVSpan; 45305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 45405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka defaultPreview = Bitmap.createBitmap(previewWidth, previewHeight, 45505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Config.ARGB_8888); 45605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final Canvas c = mCachedAppWidgetPreviewCanvas.get(); 45705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.setBitmap(defaultPreview); 45805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka previewDrawable.setBounds(0, 0, previewWidth, previewHeight); 45905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka previewDrawable.setTileModeXY(Shader.TileMode.REPEAT, 46005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Shader.TileMode.REPEAT); 46105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka previewDrawable.draw(c); 46205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.setBitmap(null); 46305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 46405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // Draw the icon in the top left corner 46505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 46605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int smallestSide = Math.min(previewWidth, previewHeight); 46705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka float iconScale = Math.min((float) smallestSide 46805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka / (mAppIconSize + 2 * minOffset), 1f); 46905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 47005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka try { 47105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Drawable icon = null; 47205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int hoffset = 47305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka (int) ((previewDrawableWidth - mAppIconSize * iconScale) / 2); 47405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int yoffset = 47505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka (int) ((previewDrawableHeight - mAppIconSize * iconScale) / 2); 47605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (iconId > 0) 47705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka icon = mIconCache.getFullResIcon(packageName, iconId); 47805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (icon != null) { 47905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka renderDrawableToBitmap(icon, defaultPreview, hoffset, 48005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka yoffset, (int) (mAppIconSize * iconScale), 48105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka (int) (mAppIconSize * iconScale)); 48205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 48305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } catch (Resources.NotFoundException e) { 48405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 48505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 48605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 48705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // Scale to fit width only - let the widget preview be clipped in the 48805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // vertical dimension 48905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka float scale = 1f; 49005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (preScaledWidthOut != null) { 49105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka preScaledWidthOut[0] = previewWidth; 49205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 49305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (previewWidth > maxPreviewWidth) { 49405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka scale = maxPreviewWidth / (float) previewWidth; 49505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 49605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (scale != 1f) { 49705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka previewWidth = (int) (scale * previewWidth); 49805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka previewHeight = (int) (scale * previewHeight); 49905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 50005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 50105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // If a bitmap is passed in, we use it; otherwise, we create a bitmap of the right size 50205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (preview == null) { 50305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka preview = Bitmap.createBitmap(previewWidth, previewHeight, Config.ARGB_8888); 50405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 50505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 50605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // Draw the scaled preview into the final bitmap 50705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int x = (preview.getWidth() - previewWidth) / 2; 50805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (widgetPreviewExists) { 50905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka renderDrawableToBitmap(drawable, preview, x, 0, previewWidth, 51005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka previewHeight); 51105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } else { 51205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final Canvas c = mCachedAppWidgetPreviewCanvas.get(); 51305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final Rect src = mCachedAppWidgetPreviewSrcRect.get(); 51405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final Rect dest = mCachedAppWidgetPreviewDestRect.get(); 51505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.setBitmap(preview); 51605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka src.set(0, 0, defaultPreview.getWidth(), defaultPreview.getHeight()); 51705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka dest.set(x, 0, previewWidth, previewHeight); 51805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 51905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Paint p = mCachedAppWidgetPreviewPaint.get(); 52005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (p == null) { 52105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka p = new Paint(); 52205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka p.setFilterBitmap(true); 52305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mCachedAppWidgetPreviewPaint.set(p); 52405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 52505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.drawBitmap(defaultPreview, src, dest, p); 52605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.setBitmap(null); 52705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 52805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return preview; 52905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 53005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 53105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private Bitmap generateShortcutPreview( 53205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka ResolveInfo info, int maxWidth, int maxHeight, Bitmap preview) { 53305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Bitmap tempBitmap = mCachedShortcutPreviewBitmap.get(); 53405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final Canvas c = mCachedShortcutPreviewCanvas.get(); 53505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (tempBitmap == null || 53605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka tempBitmap.getWidth() != maxWidth || 53705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka tempBitmap.getHeight() != maxHeight) { 53805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka tempBitmap = Bitmap.createBitmap(maxWidth, maxHeight, Config.ARGB_8888); 53905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mCachedShortcutPreviewBitmap.set(tempBitmap); 54005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } else { 54105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.setBitmap(tempBitmap); 54205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.drawColor(0, PorterDuff.Mode.CLEAR); 54305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.setBitmap(null); 54405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 54505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // Render the icon 54605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Drawable icon = mIconCache.getFullResIcon(info); 54705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 54805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int paddingTop = mContext. 54905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_top); 55005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int paddingLeft = mContext. 55105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_left); 55205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int paddingRight = mContext. 55305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_right); 55405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 55505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int scaledIconWidth = (maxWidth - paddingLeft - paddingRight); 55605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 55705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka renderDrawableToBitmap( 55805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka icon, tempBitmap, paddingLeft, paddingTop, scaledIconWidth, scaledIconWidth); 55905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 56005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (preview != null && 56105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka (preview.getWidth() != maxWidth || preview.getHeight() != maxHeight)) { 56205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka throw new RuntimeException("Improperly sized bitmap passed as argument"); 56305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } else if (preview == null) { 56405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka preview = Bitmap.createBitmap(maxWidth, maxHeight, Config.ARGB_8888); 56505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 56605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 56705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.setBitmap(preview); 56805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // Draw a desaturated/scaled version of the icon in the background as a watermark 56905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Paint p = mCachedShortcutPreviewPaint.get(); 57005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (p == null) { 57105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka p = new Paint(); 57205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka ColorMatrix colorMatrix = new ColorMatrix(); 57305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka colorMatrix.setSaturation(0); 57405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka p.setColorFilter(new ColorMatrixColorFilter(colorMatrix)); 57505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka p.setAlpha((int) (255 * 0.06f)); 57605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mCachedShortcutPreviewPaint.set(p); 57705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 57805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.drawBitmap(tempBitmap, 0, 0, p); 57905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.setBitmap(null); 58005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 58105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka renderDrawableToBitmap(icon, preview, 0, 0, mAppIconSize, mAppIconSize); 58205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 58305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return preview; 58405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 58505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 58605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 58705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public static void renderDrawableToBitmap( 58805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 58905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f); 59005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 59105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 59205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private static void renderDrawableToBitmap( 59305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Drawable d, Bitmap bitmap, int x, int y, int w, int h, 59405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka float scale) { 59505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (bitmap != null) { 59605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Canvas c = new Canvas(bitmap); 59705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.scale(scale, scale); 59805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Rect oldBounds = d.copyBounds(); 59905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka d.setBounds(x, y, x + w, y + h); 60005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka d.draw(c); 60105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka d.setBounds(oldBounds); // Restore the bounds 60205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.setBitmap(null); 60305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 60405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 60505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 60605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka} 607