WidgetPreviewLoader.java revision e5919c5574ff09b88173b44558c6d325841511d6
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 1063f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka private int mPreviewBitmapWidth; 1073f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka private int mPreviewBitmapHeight; 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 1343f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka private HashMap<String, WeakReference<Bitmap>> mLoadedPreviews; 1353f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka private ArrayList<SoftReference<Bitmap>> mUnusedBitmaps; 13605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private static HashSet<String> sInvalidPackages; 13705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 13805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka static { 13905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka sInvalidPackages = new HashSet<String>(); 14005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 14105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 1423f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka public WidgetPreviewLoader(Launcher launcher) { 14305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mContext = mLauncher = launcher; 14405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mPackageManager = mContext.getPackageManager(); 14505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mAppIconSize = mContext.getResources().getDimensionPixelSize(R.dimen.app_icon_size); 14605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mIconCache = ((LauncherApplication) launcher.getApplicationContext()).getIconCache(); 14705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mDb = new WidgetPreviewCacheDb(mContext); 1483f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka mLoadedPreviews = new HashMap<String, WeakReference<Bitmap>>(); 1493f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka mUnusedBitmaps = new ArrayList<SoftReference<Bitmap>>(); 1503f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka } 1513f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka 1523f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka public void setPreviewSize(int previewWidth, int previewHeight, 1533f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka PagedViewCellLayout widgetSpacingLayout) { 1543f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka mPreviewBitmapWidth = previewWidth; 1553f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka mPreviewBitmapHeight = previewHeight; 1563f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka mSize = previewWidth + "x" + previewHeight; 1573f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka mWidgetSpacingLayout = widgetSpacingLayout; 15805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 15905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 16005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public Bitmap getPreview(final Object o) { 16105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka String name = getObjectName(o); 16205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // check if the package is valid 16305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka boolean packageValid = true; 16405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka synchronized(sInvalidPackages) { 16505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka packageValid = !sInvalidPackages.contains(getObjectPackage(o)); 16605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 16705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (!packageValid) { 16805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return null; 16905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 17005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (packageValid) { 1713f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka synchronized(mLoadedPreviews) { 17205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // check if it exists in our existing cache 1733f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka if (mLoadedPreviews.containsKey(name) && mLoadedPreviews.get(name).get() != null) { 1743f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka return mLoadedPreviews.get(name).get(); 17505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 17605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 17705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 17805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 17905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Bitmap unusedBitmap = null; 1803f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka synchronized(mUnusedBitmaps) { 18105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // not in cache; we need to load it from the db 1823f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka while ((unusedBitmap == null || !unusedBitmap.isMutable() || 1833f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka unusedBitmap.getWidth() != mPreviewBitmapWidth || 1843f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka unusedBitmap.getHeight() != mPreviewBitmapHeight) 1853f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka && mUnusedBitmaps.size() > 0) { 1863f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka unusedBitmap = mUnusedBitmaps.remove(0).get(); 18705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 18805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (unusedBitmap != null) { 18905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final Canvas c = mCachedAppWidgetPreviewCanvas.get(); 19005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.setBitmap(unusedBitmap); 19105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.drawColor(0, PorterDuff.Mode.CLEAR); 19205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.setBitmap(null); 19305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 19405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 19505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 19605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (unusedBitmap == null) { 1973f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka unusedBitmap = Bitmap.createBitmap(mPreviewBitmapWidth, mPreviewBitmapHeight, 19805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Bitmap.Config.ARGB_8888); 19905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 20005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 20105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Bitmap preview = null; 20205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 20305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (packageValid) { 20405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka preview = readFromDb(name, unusedBitmap); 20505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 20605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 20705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (preview != null) { 2083f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka synchronized(mLoadedPreviews) { 2093f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka mLoadedPreviews.put(name, new WeakReference<Bitmap>(preview)); 21005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 21105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return preview; 21205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } else { 21305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // it's not in the db... we need to generate it 21405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final Bitmap generatedPreview = generatePreview(o, unusedBitmap); 21505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka preview = generatedPreview; 21605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (preview != unusedBitmap) { 21705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka throw new RuntimeException("generatePreview is not recycling the bitmap " + o); 21805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 21905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 2203f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka synchronized(mLoadedPreviews) { 2213f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka mLoadedPreviews.put(name, new WeakReference<Bitmap>(preview)); 22205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 22305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 22405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // write to db on a thread pool... this can be done lazily and improves the performance 22505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // of the first time widget previews are loaded 22605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka new AsyncTask<Void, Void, Void>() { 22705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public Void doInBackground(Void ... args) { 22805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka writeToDb(o, generatedPreview); 22905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return null; 23005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 23105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, (Void) null); 23205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 23305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return preview; 23405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 23505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 23605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 237ee8e99fe3bde78885904b4d9ea789b4d2a6f2b16Michael Jurka public void recycleBitmap(Object o, Bitmap bitmapToRecycle) { 23805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka String name = getObjectName(o); 2395140cfaf471ed21c1cdcf0edcb53ae89b87c6848Michael Jurka synchronized (mLoadedPreviews) { 2405140cfaf471ed21c1cdcf0edcb53ae89b87c6848Michael Jurka if (mLoadedPreviews.containsKey(name)) { 2413f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka Bitmap b = mLoadedPreviews.get(name).get(); 242ee8e99fe3bde78885904b4d9ea789b4d2a6f2b16Michael Jurka if (b == bitmapToRecycle) { 2433f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka mLoadedPreviews.remove(name); 244ee8e99fe3bde78885904b4d9ea789b4d2a6f2b16Michael Jurka if (bitmapToRecycle.isMutable()) { 2455140cfaf471ed21c1cdcf0edcb53ae89b87c6848Michael Jurka synchronized (mUnusedBitmaps) { 2465140cfaf471ed21c1cdcf0edcb53ae89b87c6848Michael Jurka mUnusedBitmaps.add(new SoftReference<Bitmap>(b)); 2475140cfaf471ed21c1cdcf0edcb53ae89b87c6848Michael Jurka } 24805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 24905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } else { 25005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka throw new RuntimeException("Bitmap passed in doesn't match up"); 25105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 25205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 25305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 25405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 25505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 25605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka static class WidgetPreviewCacheDb extends SQLiteOpenHelper { 257e5919c5574ff09b88173b44558c6d325841511d6Michael Jurka final static int DB_VERSION = 2; 25805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final static String DB_NAME = "widgetpreviews.db"; 25905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final static String TABLE_NAME = "shortcut_and_widget_previews"; 26005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final static String COLUMN_NAME = "name"; 26105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final static String COLUMN_SIZE = "size"; 26205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final static String COLUMN_PREVIEW_BITMAP = "preview_bitmap"; 26305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Context mContext; 26405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 26505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public WidgetPreviewCacheDb(Context context) { 26605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka super(context, new File(context.getCacheDir(), DB_NAME).getPath(), null, DB_VERSION); 26705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // Store the context for later use 26805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mContext = context; 26905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 27005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 27105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka @Override 27205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public void onCreate(SQLiteDatabase database) { 27332b7a097338b77d8999c706c42f19e8ba060ba62Michael Jurka database.execSQL("CREATE TABLE IF NOT EXISTS " + TABLE_NAME + " (" + 27405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka COLUMN_NAME + " TEXT NOT NULL, " + 27505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka COLUMN_SIZE + " TEXT NOT NULL, " + 27605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka COLUMN_PREVIEW_BITMAP + " BLOB NOT NULL, " + 27705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka "PRIMARY KEY (" + COLUMN_NAME + ", " + COLUMN_SIZE + ") " + 27832b7a097338b77d8999c706c42f19e8ba060ba62Michael Jurka ");"); 27905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 28005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 28105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka @Override 28205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { 283e5919c5574ff09b88173b44558c6d325841511d6Michael Jurka if (oldVersion != newVersion) { 284e5919c5574ff09b88173b44558c6d325841511d6Michael Jurka // Delete all the records; they'll be repopulated as this is a cache 285e5919c5574ff09b88173b44558c6d325841511d6Michael Jurka db.execSQL("DELETE FROM " + TABLE_NAME); 286e5919c5574ff09b88173b44558c6d325841511d6Michael Jurka } 28705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 28805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 28905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 29005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private static final String WIDGET_PREFIX = "Widget:"; 29105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private static final String SHORTCUT_PREFIX = "Shortcut:"; 29205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 29305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private static String getObjectName(Object o) { 29405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // should cache the string builder 29505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka StringBuilder sb = new StringBuilder(); 29605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka String output; 29705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (o instanceof AppWidgetProviderInfo) { 29805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka sb.append(WIDGET_PREFIX); 29905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka sb.append(((AppWidgetProviderInfo) o).provider.flattenToString()); 30005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka output = sb.toString(); 30105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka sb.setLength(0); 30205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } else { 30305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka sb.append(SHORTCUT_PREFIX); 30405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 30505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka ResolveInfo info = (ResolveInfo) o; 30605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka sb.append(new ComponentName(info.activityInfo.packageName, 30705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka info.activityInfo.name).flattenToString()); 30805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka output = sb.toString(); 30905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka sb.setLength(0); 31005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 31105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return output; 31205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 31305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 31405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private String getObjectPackage(Object o) { 31505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (o instanceof AppWidgetProviderInfo) { 31605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return ((AppWidgetProviderInfo) o).provider.getPackageName(); 31705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } else { 31805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka ResolveInfo info = (ResolveInfo) o; 31905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return info.activityInfo.packageName; 32005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 32105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 32205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 32305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private void writeToDb(Object o, Bitmap preview) { 32405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka String name = getObjectName(o); 32505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka SQLiteDatabase db = mDb.getWritableDatabase(); 32605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka ContentValues values = new ContentValues(); 32705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 32805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka values.put(WidgetPreviewCacheDb.COLUMN_NAME, name); 32905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka ByteArrayOutputStream stream = new ByteArrayOutputStream(); 33005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka preview.compress(Bitmap.CompressFormat.PNG, 100, stream); 33105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka values.put(WidgetPreviewCacheDb.COLUMN_PREVIEW_BITMAP, stream.toByteArray()); 33205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka values.put(WidgetPreviewCacheDb.COLUMN_SIZE, mSize); 33305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka db.insert(WidgetPreviewCacheDb.TABLE_NAME, null, values); 33405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 33505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 33605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public static void removeFromDb(final Context mContext, final String packageName) { 33705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka synchronized(sInvalidPackages) { 33805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka sInvalidPackages.add(packageName); 33905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 34005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka new AsyncTask<Void, Void, Void>() { 34105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public Void doInBackground(Void ... args) { 34205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka SQLiteDatabase db = new WidgetPreviewCacheDb(mContext).getWritableDatabase(); 34305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka db.delete(WidgetPreviewCacheDb.TABLE_NAME, 34405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka WidgetPreviewCacheDb.COLUMN_NAME + " LIKE ? OR " + 34505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka WidgetPreviewCacheDb.COLUMN_NAME + " LIKE ?", // SELECT query 34605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka new String[] { 34705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka WIDGET_PREFIX + packageName + "/%", 34805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka SHORTCUT_PREFIX + packageName + "/%"} // args to SELECT query 34905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka ); 35005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka db.close(); 35105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka synchronized(sInvalidPackages) { 35205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka sInvalidPackages.remove(packageName); 35305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 35405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return null; 35505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 35605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, (Void) null); 35705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 35805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 3590247d1418dcec03a3522cc24f0eb98cc0734eae0Michael Jurka public void closeDb() { 3600247d1418dcec03a3522cc24f0eb98cc0734eae0Michael Jurka if (mDb != null) { 3610247d1418dcec03a3522cc24f0eb98cc0734eae0Michael Jurka mDb.close(); 3620247d1418dcec03a3522cc24f0eb98cc0734eae0Michael Jurka } 3630247d1418dcec03a3522cc24f0eb98cc0734eae0Michael Jurka } 3640247d1418dcec03a3522cc24f0eb98cc0734eae0Michael Jurka 36505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private Bitmap readFromDb(String name, Bitmap b) { 36605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (mCachedSelectQuery == null) { 36705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mCachedSelectQuery = WidgetPreviewCacheDb.COLUMN_NAME + " = ? AND " + 36805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka WidgetPreviewCacheDb.COLUMN_SIZE + " = ?"; 36905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 37005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka SQLiteDatabase db = mDb.getReadableDatabase(); 37105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Cursor result = db.query(WidgetPreviewCacheDb.TABLE_NAME, 37205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka new String[] { WidgetPreviewCacheDb.COLUMN_PREVIEW_BITMAP }, // cols to return 37305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mCachedSelectQuery, // select query 37405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka new String[] { name, mSize }, // args to select query 37505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka null, 37605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka null, 37705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka null, 37805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka null); 37905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (result.getCount() > 0) { 38005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka result.moveToFirst(); 38105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka byte[] blob = result.getBlob(0); 38205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka result.close(); 38305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final BitmapFactory.Options opts = mCachedBitmapFactoryOptions.get(); 38405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka opts.inBitmap = b; 38505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka opts.inSampleSize = 1; 38605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Bitmap out = BitmapFactory.decodeByteArray(blob, 0, blob.length, opts); 38705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return out; 38805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } else { 38905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka result.close(); 39005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return null; 39105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 39205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 39305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 39405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public Bitmap generatePreview(Object info, Bitmap preview) { 39505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (preview != null && 3963f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka (preview.getWidth() != mPreviewBitmapWidth || 3973f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka preview.getHeight() != mPreviewBitmapHeight)) { 39805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka throw new RuntimeException("Improperly sized bitmap passed as argument"); 39905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 40005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (info instanceof AppWidgetProviderInfo) { 40105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return generateWidgetPreview((AppWidgetProviderInfo) info, preview); 40205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } else { 40305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return generateShortcutPreview( 4043f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka (ResolveInfo) info, mPreviewBitmapWidth, mPreviewBitmapHeight, preview); 40505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 40605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 40705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 40805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public Bitmap generateWidgetPreview(AppWidgetProviderInfo info, Bitmap preview) { 40905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int[] cellSpans = Launcher.getSpanForWidget(mLauncher, info); 41005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int maxWidth = maxWidthForWidgetPreview(cellSpans[0]); 41105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int maxHeight = maxHeightForWidgetPreview(cellSpans[1]); 41205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return generateWidgetPreview(info.provider, info.previewImage, info.icon, 41305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka cellSpans[0], cellSpans[1], maxWidth, maxHeight, preview, null); 41405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 41505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 41605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public int maxWidthForWidgetPreview(int spanX) { 4173f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka return Math.min(mPreviewBitmapWidth, 41805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mWidgetSpacingLayout.estimateCellWidth(spanX)); 41905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 42005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 42105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public int maxHeightForWidgetPreview(int spanY) { 4223f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka return Math.min(mPreviewBitmapHeight, 42305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mWidgetSpacingLayout.estimateCellHeight(spanY)); 42405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 42505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 42605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public Bitmap generateWidgetPreview(ComponentName provider, int previewImage, 42705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int iconId, int cellHSpan, int cellVSpan, int maxPreviewWidth, int maxPreviewHeight, 42805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Bitmap preview, int[] preScaledWidthOut) { 42905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // Load the preview image if possible 43005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka String packageName = provider.getPackageName(); 43105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (maxPreviewWidth < 0) maxPreviewWidth = Integer.MAX_VALUE; 43205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (maxPreviewHeight < 0) maxPreviewHeight = Integer.MAX_VALUE; 43305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 43405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Drawable drawable = null; 43505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (previewImage != 0) { 43605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka drawable = mPackageManager.getDrawable(packageName, previewImage, null); 43705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (drawable == null) { 43805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Log.w(TAG, "Can't load widget preview drawable 0x" + 43905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Integer.toHexString(previewImage) + " for provider: " + provider); 44005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 44105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 44205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 44305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int previewWidth; 44405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int previewHeight; 44505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Bitmap defaultPreview = null; 44605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka boolean widgetPreviewExists = (drawable != null); 44705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (widgetPreviewExists) { 44805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka previewWidth = drawable.getIntrinsicWidth(); 44905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka previewHeight = drawable.getIntrinsicHeight(); 45005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } else { 45105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // Generate a preview image if we couldn't load one 45205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (cellHSpan < 1) cellHSpan = 1; 45305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (cellVSpan < 1) cellVSpan = 1; 45405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 45505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka BitmapDrawable previewDrawable = (BitmapDrawable) mContext.getResources() 45605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka .getDrawable(R.drawable.widget_preview_tile); 45705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final int previewDrawableWidth = previewDrawable 45805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka .getIntrinsicWidth(); 45905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final int previewDrawableHeight = previewDrawable 46005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka .getIntrinsicHeight(); 46105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka previewWidth = previewDrawableWidth * cellHSpan; // subtract 2 dips 46205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka previewHeight = previewDrawableHeight * cellVSpan; 46305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 46405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka defaultPreview = Bitmap.createBitmap(previewWidth, previewHeight, 46505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Config.ARGB_8888); 46605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final Canvas c = mCachedAppWidgetPreviewCanvas.get(); 46705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.setBitmap(defaultPreview); 46805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka previewDrawable.setBounds(0, 0, previewWidth, previewHeight); 46905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka previewDrawable.setTileModeXY(Shader.TileMode.REPEAT, 47005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Shader.TileMode.REPEAT); 47105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka previewDrawable.draw(c); 47205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.setBitmap(null); 47305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 47405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // Draw the icon in the top left corner 47505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int minOffset = (int) (mAppIconSize * sWidgetPreviewIconPaddingPercentage); 47605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int smallestSide = Math.min(previewWidth, previewHeight); 47705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka float iconScale = Math.min((float) smallestSide 47805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka / (mAppIconSize + 2 * minOffset), 1f); 47905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 48005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka try { 48105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Drawable icon = null; 48205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int hoffset = 48305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka (int) ((previewDrawableWidth - mAppIconSize * iconScale) / 2); 48405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int yoffset = 48505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka (int) ((previewDrawableHeight - mAppIconSize * iconScale) / 2); 48605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (iconId > 0) 48705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka icon = mIconCache.getFullResIcon(packageName, iconId); 48805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (icon != null) { 48905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka renderDrawableToBitmap(icon, defaultPreview, hoffset, 49005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka yoffset, (int) (mAppIconSize * iconScale), 49105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka (int) (mAppIconSize * iconScale)); 49205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 49305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } catch (Resources.NotFoundException e) { 49405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 49505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 49605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 49705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // Scale to fit width only - let the widget preview be clipped in the 49805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // vertical dimension 49905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka float scale = 1f; 50005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (preScaledWidthOut != null) { 50105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka preScaledWidthOut[0] = previewWidth; 50205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 50305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (previewWidth > maxPreviewWidth) { 50405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka scale = maxPreviewWidth / (float) previewWidth; 50505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 50605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (scale != 1f) { 50705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka previewWidth = (int) (scale * previewWidth); 50805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka previewHeight = (int) (scale * previewHeight); 50905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 51005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 51105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // If a bitmap is passed in, we use it; otherwise, we create a bitmap of the right size 51205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (preview == null) { 51305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka preview = Bitmap.createBitmap(previewWidth, previewHeight, Config.ARGB_8888); 51405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 51505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 51605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // Draw the scaled preview into the final bitmap 51705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int x = (preview.getWidth() - previewWidth) / 2; 51805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (widgetPreviewExists) { 51905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka renderDrawableToBitmap(drawable, preview, x, 0, previewWidth, 52005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka previewHeight); 52105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } else { 52205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final Canvas c = mCachedAppWidgetPreviewCanvas.get(); 52305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final Rect src = mCachedAppWidgetPreviewSrcRect.get(); 52405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final Rect dest = mCachedAppWidgetPreviewDestRect.get(); 52505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.setBitmap(preview); 52605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka src.set(0, 0, defaultPreview.getWidth(), defaultPreview.getHeight()); 527e5919c5574ff09b88173b44558c6d325841511d6Michael Jurka dest.set(x, 0, x + previewWidth, previewHeight); 52805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 52905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Paint p = mCachedAppWidgetPreviewPaint.get(); 53005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (p == null) { 53105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka p = new Paint(); 53205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka p.setFilterBitmap(true); 53305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mCachedAppWidgetPreviewPaint.set(p); 53405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 53505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.drawBitmap(defaultPreview, src, dest, p); 53605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.setBitmap(null); 53705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 53805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return preview; 53905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 54005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 54105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private Bitmap generateShortcutPreview( 54205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka ResolveInfo info, int maxWidth, int maxHeight, Bitmap preview) { 54305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Bitmap tempBitmap = mCachedShortcutPreviewBitmap.get(); 54405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka final Canvas c = mCachedShortcutPreviewCanvas.get(); 54505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (tempBitmap == null || 54605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka tempBitmap.getWidth() != maxWidth || 54705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka tempBitmap.getHeight() != maxHeight) { 54805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka tempBitmap = Bitmap.createBitmap(maxWidth, maxHeight, Config.ARGB_8888); 54905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mCachedShortcutPreviewBitmap.set(tempBitmap); 55005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } else { 55105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.setBitmap(tempBitmap); 55205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.drawColor(0, PorterDuff.Mode.CLEAR); 55305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.setBitmap(null); 55405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 55505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // Render the icon 55605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Drawable icon = mIconCache.getFullResIcon(info); 55705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 55805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int paddingTop = mContext. 55905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_top); 56005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int paddingLeft = mContext. 56105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_left); 56205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int paddingRight = mContext. 56305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka getResources().getDimensionPixelOffset(R.dimen.shortcut_preview_padding_right); 56405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 56505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int scaledIconWidth = (maxWidth - paddingLeft - paddingRight); 56605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 56705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka renderDrawableToBitmap( 56805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka icon, tempBitmap, paddingLeft, paddingTop, scaledIconWidth, scaledIconWidth); 56905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 57005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (preview != null && 57105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka (preview.getWidth() != maxWidth || preview.getHeight() != maxHeight)) { 57205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka throw new RuntimeException("Improperly sized bitmap passed as argument"); 57305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } else if (preview == null) { 57405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka preview = Bitmap.createBitmap(maxWidth, maxHeight, Config.ARGB_8888); 57505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 57605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 57705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.setBitmap(preview); 57805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // Draw a desaturated/scaled version of the icon in the background as a watermark 57905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Paint p = mCachedShortcutPreviewPaint.get(); 58005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (p == null) { 58105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka p = new Paint(); 58205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka ColorMatrix colorMatrix = new ColorMatrix(); 58305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka colorMatrix.setSaturation(0); 58405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka p.setColorFilter(new ColorMatrixColorFilter(colorMatrix)); 58505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka p.setAlpha((int) (255 * 0.06f)); 58605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka mCachedShortcutPreviewPaint.set(p); 58705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 58805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.drawBitmap(tempBitmap, 0, 0, p); 58905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.setBitmap(null); 59005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 59105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka renderDrawableToBitmap(icon, preview, 0, 0, mAppIconSize, mAppIconSize); 59205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 59305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return preview; 59405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 59505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 59605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 59705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public static void renderDrawableToBitmap( 59805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Drawable d, Bitmap bitmap, int x, int y, int w, int h) { 59905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka renderDrawableToBitmap(d, bitmap, x, y, w, h, 1f); 60005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 60105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 60205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private static void renderDrawableToBitmap( 60305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Drawable d, Bitmap bitmap, int x, int y, int w, int h, 60405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka float scale) { 60505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (bitmap != null) { 60605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Canvas c = new Canvas(bitmap); 60705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.scale(scale, scale); 60805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Rect oldBounds = d.copyBounds(); 60905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka d.setBounds(x, y, x + w, y + h); 61005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka d.draw(c); 61105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka d.setBounds(oldBounds); // Restore the bounds 61205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.setBitmap(null); 61305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 61405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 61505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 61605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka} 617