| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.launcher3; |
| |
| import android.app.ActivityManager; |
| import android.content.ComponentName; |
| import android.content.ContentValues; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.pm.ActivityInfo; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.PackageInfo; |
| import android.content.pm.PackageManager; |
| import android.content.pm.PackageManager.NameNotFoundException; |
| import android.content.res.Resources; |
| import android.database.Cursor; |
| import android.database.sqlite.SQLiteDatabase; |
| import android.database.sqlite.SQLiteOpenHelper; |
| import android.graphics.Bitmap; |
| import android.graphics.BitmapFactory; |
| import android.graphics.Canvas; |
| import android.graphics.drawable.Drawable; |
| import android.os.Handler; |
| import android.text.TextUtils; |
| import android.util.Log; |
| |
| import com.android.launcher3.compat.LauncherActivityInfoCompat; |
| import com.android.launcher3.compat.LauncherAppsCompat; |
| import com.android.launcher3.compat.UserHandleCompat; |
| import com.android.launcher3.compat.UserManagerCompat; |
| import com.android.launcher3.util.ComponentKey; |
| import com.android.launcher3.util.Thunk; |
| import com.android.launcher3.widget.PackageItemInfo; |
| |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Locale; |
| import java.util.Map.Entry; |
| |
| /** |
| * Cache of application icons. Icons can be made from any thread. |
| */ |
| public class IconCache { |
| |
| private static final String TAG = "Launcher.IconCache"; |
| |
| private static final int INITIAL_ICON_CACHE_CAPACITY = 50; |
| |
| // Empty class name is used for storing package default entry. |
| private static final String EMPTY_CLASS_NAME = "."; |
| |
| private static final boolean DEBUG = false; |
| |
| private static final int LOW_RES_SCALE_FACTOR = 8; |
| |
| @Thunk static class CacheEntry { |
| public Bitmap icon; |
| public CharSequence title; |
| public CharSequence contentDescription; |
| public boolean isLowResIcon; |
| } |
| |
| private final HashMap<UserHandleCompat, Bitmap> mDefaultIcons = new HashMap<>(); |
| private final MainThreadExecutor mMainThreadExecutor = new MainThreadExecutor(); |
| |
| private final Context mContext; |
| private final PackageManager mPackageManager; |
| private final UserManagerCompat mUserManager; |
| private final LauncherAppsCompat mLauncherApps; |
| private final HashMap<ComponentKey, CacheEntry> mCache = |
| new HashMap<ComponentKey, CacheEntry>(INITIAL_ICON_CACHE_CAPACITY); |
| private final int mIconDpi; |
| private final IconDB mIconDb; |
| |
| private final Handler mWorkerHandler; |
| |
| public IconCache(Context context) { |
| ActivityManager activityManager = |
| (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE); |
| |
| mContext = context; |
| mPackageManager = context.getPackageManager(); |
| mUserManager = UserManagerCompat.getInstance(mContext); |
| mLauncherApps = LauncherAppsCompat.getInstance(mContext); |
| mIconDpi = activityManager.getLauncherLargeIconDensity(); |
| mIconDb = new IconDB(context); |
| |
| mWorkerHandler = new Handler(LauncherModel.getWorkerLooper()); |
| } |
| |
| private Drawable getFullResDefaultActivityIcon() { |
| return getFullResIcon(Resources.getSystem(), android.R.mipmap.sym_def_app_icon); |
| } |
| |
| private Drawable getFullResIcon(Resources resources, int iconId) { |
| Drawable d; |
| try { |
| d = resources.getDrawableForDensity(iconId, mIconDpi); |
| } catch (Resources.NotFoundException e) { |
| d = null; |
| } |
| |
| return (d != null) ? d : getFullResDefaultActivityIcon(); |
| } |
| |
| public Drawable getFullResIcon(String packageName, int iconId) { |
| Resources resources; |
| try { |
| resources = mPackageManager.getResourcesForApplication(packageName); |
| } catch (PackageManager.NameNotFoundException e) { |
| resources = null; |
| } |
| if (resources != null) { |
| if (iconId != 0) { |
| return getFullResIcon(resources, iconId); |
| } |
| } |
| return getFullResDefaultActivityIcon(); |
| } |
| |
| public int getFullResIconDpi() { |
| return mIconDpi; |
| } |
| |
| public Drawable getFullResIcon(ActivityInfo info) { |
| Resources resources; |
| try { |
| resources = mPackageManager.getResourcesForApplication( |
| info.applicationInfo); |
| } catch (PackageManager.NameNotFoundException e) { |
| resources = null; |
| } |
| if (resources != null) { |
| int iconId = info.getIconResource(); |
| if (iconId != 0) { |
| return getFullResIcon(resources, iconId); |
| } |
| } |
| |
| return getFullResDefaultActivityIcon(); |
| } |
| |
| private Bitmap makeDefaultIcon(UserHandleCompat user) { |
| Drawable unbadged = getFullResDefaultActivityIcon(); |
| Drawable d = mUserManager.getBadgedDrawableForUser(unbadged, user); |
| Bitmap b = Bitmap.createBitmap(Math.max(d.getIntrinsicWidth(), 1), |
| Math.max(d.getIntrinsicHeight(), 1), |
| Bitmap.Config.ARGB_8888); |
| Canvas c = new Canvas(b); |
| d.setBounds(0, 0, b.getWidth(), b.getHeight()); |
| d.draw(c); |
| c.setBitmap(null); |
| return b; |
| } |
| |
| /** |
| * Remove any records for the supplied ComponentName. |
| */ |
| public synchronized void remove(ComponentName componentName, UserHandleCompat user) { |
| mCache.remove(new ComponentKey(componentName, user)); |
| } |
| |
| /** |
| * Remove any records for the supplied package name from memory. |
| */ |
| private void removeFromMemCacheLocked(String packageName, UserHandleCompat user) { |
| HashSet<ComponentKey> forDeletion = new HashSet<ComponentKey>(); |
| for (ComponentKey key: mCache.keySet()) { |
| if (key.componentName.getPackageName().equals(packageName) |
| && key.user.equals(user)) { |
| forDeletion.add(key); |
| } |
| } |
| for (ComponentKey condemned: forDeletion) { |
| mCache.remove(condemned); |
| } |
| } |
| |
| /** |
| * Updates the entries related to the given package in memory and persistent DB. |
| */ |
| public synchronized void updateIconsForPkg(String packageName, UserHandleCompat user) { |
| removeIconsForPkg(packageName, user); |
| try { |
| PackageInfo info = mPackageManager.getPackageInfo(packageName, |
| PackageManager.GET_UNINSTALLED_PACKAGES); |
| long userSerial = mUserManager.getSerialNumberForUser(user); |
| for (LauncherActivityInfoCompat app : mLauncherApps.getActivityList(packageName, user)) { |
| addIconToDBAndMemCache(app, info, userSerial); |
| } |
| } catch (NameNotFoundException e) { |
| Log.d(TAG, "Package not found", e); |
| return; |
| } |
| } |
| |
| /** |
| * Removes the entries related to the given package in memory and persistent DB. |
| */ |
| public synchronized void removeIconsForPkg(String packageName, UserHandleCompat user) { |
| removeFromMemCacheLocked(packageName, user); |
| long userSerial = mUserManager.getSerialNumberForUser(user); |
| mIconDb.getWritableDatabase().delete(IconDB.TABLE_NAME, |
| IconDB.COLUMN_COMPONENT + " LIKE ? AND " + IconDB.COLUMN_USER + " = ?", |
| new String[] {packageName + "/%", Long.toString(userSerial)}); |
| } |
| |
| /** |
| * Updates the persistent DB, such that only entries corresponding to {@param apps} remain in |
| * the DB and are updated. |
| * @return The set of packages for which icons have updated. |
| */ |
| public HashSet<String> updateDBIcons(UserHandleCompat user, List<LauncherActivityInfoCompat> apps) { |
| mIconDb.updateSystemStateString(mContext); |
| long userSerial = mUserManager.getSerialNumberForUser(user); |
| PackageManager pm = mContext.getPackageManager(); |
| HashMap<String, PackageInfo> pkgInfoMap = new HashMap<String, PackageInfo>(); |
| for (PackageInfo info : pm.getInstalledPackages(PackageManager.GET_UNINSTALLED_PACKAGES)) { |
| pkgInfoMap.put(info.packageName, info); |
| } |
| |
| HashMap<ComponentName, LauncherActivityInfoCompat> componentMap = new HashMap<>(); |
| for (LauncherActivityInfoCompat app : apps) { |
| componentMap.put(app.getComponentName(), app); |
| } |
| |
| Cursor c = mIconDb.getReadableDatabase().query(IconDB.TABLE_NAME, |
| new String[] {IconDB.COLUMN_ROWID, IconDB.COLUMN_COMPONENT, |
| IconDB.COLUMN_LAST_UPDATED, IconDB.COLUMN_VERSION, |
| IconDB.COLUMN_SYSTEM_STATE}, |
| IconDB.COLUMN_USER + " = ? ", |
| new String[] {Long.toString(userSerial)}, |
| null, null, null); |
| |
| final int indexComponent = c.getColumnIndex(IconDB.COLUMN_COMPONENT); |
| final int indexLastUpdate = c.getColumnIndex(IconDB.COLUMN_LAST_UPDATED); |
| final int indexVersion = c.getColumnIndex(IconDB.COLUMN_VERSION); |
| final int rowIndex = c.getColumnIndex(IconDB.COLUMN_ROWID); |
| final int systemStateIndex = c.getColumnIndex(IconDB.COLUMN_SYSTEM_STATE); |
| |
| HashSet<Integer> itemsToRemove = new HashSet<Integer>(); |
| HashSet<String> updatedPackages = new HashSet<String>(); |
| |
| while (c.moveToNext()) { |
| String cn = c.getString(indexComponent); |
| ComponentName component = ComponentName.unflattenFromString(cn); |
| PackageInfo info = pkgInfoMap.get(component.getPackageName()); |
| if (info == null) { |
| itemsToRemove.add(c.getInt(rowIndex)); |
| continue; |
| } |
| if ((info.applicationInfo.flags & ApplicationInfo.FLAG_IS_DATA_ONLY) != 0) { |
| // Application is not present |
| continue; |
| } |
| |
| long updateTime = c.getLong(indexLastUpdate); |
| int version = c.getInt(indexVersion); |
| LauncherActivityInfoCompat app = componentMap.remove(component); |
| if (version == info.versionCode && updateTime == info.lastUpdateTime && |
| TextUtils.equals(mIconDb.mSystemState, c.getString(systemStateIndex))) { |
| continue; |
| } |
| if (app == null) { |
| itemsToRemove.add(c.getInt(rowIndex)); |
| continue; |
| } |
| ContentValues values = updateCacheAndGetContentValues(app); |
| mIconDb.getWritableDatabase().update(IconDB.TABLE_NAME, values, |
| IconDB.COLUMN_COMPONENT + " = ? AND " + IconDB.COLUMN_USER + " = ?", |
| new String[] {cn, Long.toString(userSerial)}); |
| |
| updatedPackages.add(component.getPackageName()); |
| } |
| c.close(); |
| if (!itemsToRemove.isEmpty()) { |
| mIconDb.getWritableDatabase().delete(IconDB.TABLE_NAME, |
| IconDB.COLUMN_ROWID + " IN ( " + TextUtils.join(", ", itemsToRemove) +" )", |
| null); |
| } |
| |
| // Insert remaining apps. |
| for (LauncherActivityInfoCompat app : componentMap.values()) { |
| PackageInfo info = pkgInfoMap.get(app.getComponentName().getPackageName()); |
| if (info == null) { |
| continue; |
| } |
| addIconToDBAndMemCache(app, info, userSerial); |
| } |
| return updatedPackages; |
| } |
| |
| private void addIconToDBAndMemCache(LauncherActivityInfoCompat app, PackageInfo info, |
| long userSerial) { |
| ContentValues values = updateCacheAndGetContentValues(app); |
| addIconToDB(values, app.getComponentName(), info, userSerial); |
| values.put(IconDB.COLUMN_COMPONENT, app.getComponentName().flattenToString()); |
| } |
| |
| /** |
| * Updates {@param values} to contain versoning information and adds it to the DB. |
| * @param values {@link ContentValues} containing icon & title |
| */ |
| private void addIconToDB(ContentValues values, ComponentName key, |
| PackageInfo info, long userSerial) { |
| values.put(IconDB.COLUMN_COMPONENT, key.flattenToString()); |
| values.put(IconDB.COLUMN_USER, userSerial); |
| values.put(IconDB.COLUMN_LAST_UPDATED, info.lastUpdateTime); |
| values.put(IconDB.COLUMN_VERSION, info.versionCode); |
| mIconDb.getWritableDatabase().insertWithOnConflict(IconDB.TABLE_NAME, null, values, |
| SQLiteDatabase.CONFLICT_REPLACE); |
| } |
| |
| private ContentValues updateCacheAndGetContentValues(LauncherActivityInfoCompat app) { |
| CacheEntry entry = new CacheEntry(); |
| entry.icon = Utilities.createIconBitmap(app.getBadgedIcon(mIconDpi), mContext); |
| entry.title = app.getLabel(); |
| entry.contentDescription = mUserManager.getBadgedLabelForUser(entry.title, app.getUser()); |
| mCache.put(new ComponentKey(app.getComponentName(), app.getUser()), entry); |
| |
| return mIconDb.newContentValues(entry.icon, entry.title.toString()); |
| } |
| |
| /** |
| * Empty out the cache. |
| */ |
| public synchronized void flush() { |
| mCache.clear(); |
| } |
| |
| /** |
| * Empty out the cache that aren't of the correct grid size |
| */ |
| public synchronized void flushInvalidIcons(DeviceProfile grid) { |
| Iterator<Entry<ComponentKey, CacheEntry>> it = mCache.entrySet().iterator(); |
| while (it.hasNext()) { |
| final CacheEntry e = it.next().getValue(); |
| if ((e.icon != null) && (e.icon.getWidth() < grid.iconSizePx |
| || e.icon.getHeight() < grid.iconSizePx)) { |
| it.remove(); |
| } |
| } |
| } |
| |
| /** |
| * Fetches high-res icon for the provided ItemInfo and updates the caller when done. |
| * @return a request ID that can be used to cancel the request. |
| */ |
| public IconLoadRequest updateIconInBackground(final BubbleTextView caller, final ItemInfo info) { |
| Runnable request = new Runnable() { |
| |
| @Override |
| public void run() { |
| if (info instanceof AppInfo) { |
| getTitleAndIcon((AppInfo) info, null, false); |
| } else if (info instanceof ShortcutInfo) { |
| ShortcutInfo st = (ShortcutInfo) info; |
| getTitleAndIcon(st, |
| st.promisedIntent != null ? st.promisedIntent : st.intent, |
| st.user, false); |
| } |
| mMainThreadExecutor.execute(new Runnable() { |
| |
| @Override |
| public void run() { |
| caller.reapplyItemInfo(info); |
| } |
| }); |
| } |
| }; |
| mWorkerHandler.post(request); |
| return new IconLoadRequest(request, mWorkerHandler); |
| } |
| |
| private Bitmap getNonNullIcon(CacheEntry entry, UserHandleCompat user) { |
| return entry.icon == null ? getDefaultIcon(user) : entry.icon; |
| } |
| |
| /** |
| * Fill in "application" with the icon and label for "info." |
| */ |
| public synchronized void getTitleAndIcon(AppInfo application, |
| LauncherActivityInfoCompat info, boolean useLowResIcon) { |
| UserHandleCompat user = info == null ? application.user : info.getUser(); |
| CacheEntry entry = cacheLocked(application.componentName, info, user, |
| false, useLowResIcon); |
| application.title = entry.title; |
| application.iconBitmap = getNonNullIcon(entry, user); |
| application.contentDescription = entry.contentDescription; |
| application.usingLowResIcon = entry.isLowResIcon; |
| } |
| |
| /** |
| * Returns a high res icon for the given intent and user |
| */ |
| public synchronized Bitmap getIcon(Intent intent, UserHandleCompat user) { |
| ComponentName component = intent.getComponent(); |
| // null info means not installed, but if we have a component from the intent then |
| // we should still look in the cache for restored app icons. |
| if (component == null) { |
| return getDefaultIcon(user); |
| } |
| |
| LauncherActivityInfoCompat launcherActInfo = mLauncherApps.resolveActivity(intent, user); |
| CacheEntry entry = cacheLocked(component, launcherActInfo, user, true, true); |
| return entry.icon; |
| } |
| |
| /** |
| * Fill in {@param shortcutInfo} with the icon and label for {@param intent}. If the |
| * corresponding activity is not found, it reverts to the package icon. |
| */ |
| public synchronized void getTitleAndIcon(ShortcutInfo shortcutInfo, Intent intent, |
| UserHandleCompat user, boolean useLowResIcon) { |
| ComponentName component = intent.getComponent(); |
| // null info means not installed, but if we have a component from the intent then |
| // we should still look in the cache for restored app icons. |
| if (component == null) { |
| shortcutInfo.setIcon(getDefaultIcon(user)); |
| shortcutInfo.title = ""; |
| shortcutInfo.usingFallbackIcon = true; |
| shortcutInfo.usingLowResIcon = false; |
| } else { |
| LauncherActivityInfoCompat info = mLauncherApps.resolveActivity(intent, user); |
| getTitleAndIcon(shortcutInfo, component, info, user, true, useLowResIcon); |
| } |
| } |
| |
| /** |
| * Fill in {@param shortcutInfo} with the icon and label for {@param info} |
| */ |
| public synchronized void getTitleAndIcon( |
| ShortcutInfo shortcutInfo, ComponentName component, LauncherActivityInfoCompat info, |
| UserHandleCompat user, boolean usePkgIcon, boolean useLowResIcon) { |
| CacheEntry entry = cacheLocked(component, info, user, usePkgIcon, useLowResIcon); |
| shortcutInfo.setIcon(getNonNullIcon(entry, user)); |
| shortcutInfo.title = entry.title; |
| shortcutInfo.usingFallbackIcon = isDefaultIcon(entry.icon, user); |
| shortcutInfo.usingLowResIcon = entry.isLowResIcon; |
| } |
| |
| /** |
| * Fill in {@param appInfo} with the icon and label for {@param packageName} |
| */ |
| public synchronized void getTitleAndIconForApp( |
| String packageName, UserHandleCompat user, boolean useLowResIcon, |
| PackageItemInfo infoOut) { |
| CacheEntry entry = getEntryForPackageLocked(packageName, user, useLowResIcon); |
| infoOut.iconBitmap = getNonNullIcon(entry, user); |
| infoOut.title = entry.title; |
| infoOut.usingLowResIcon = entry.isLowResIcon; |
| infoOut.contentDescription = entry.contentDescription; |
| } |
| |
| public synchronized Bitmap getDefaultIcon(UserHandleCompat user) { |
| if (!mDefaultIcons.containsKey(user)) { |
| mDefaultIcons.put(user, makeDefaultIcon(user)); |
| } |
| return mDefaultIcons.get(user); |
| } |
| |
| public boolean isDefaultIcon(Bitmap icon, UserHandleCompat user) { |
| return mDefaultIcons.get(user) == icon; |
| } |
| |
| /** |
| * Retrieves the entry from the cache. If the entry is not present, it creates a new entry. |
| * This method is not thread safe, it must be called from a synchronized method. |
| */ |
| private CacheEntry cacheLocked(ComponentName componentName, LauncherActivityInfoCompat info, |
| UserHandleCompat user, boolean usePackageIcon, boolean useLowResIcon) { |
| ComponentKey cacheKey = new ComponentKey(componentName, user); |
| CacheEntry entry = mCache.get(cacheKey); |
| if (entry == null || (entry.isLowResIcon && !useLowResIcon)) { |
| entry = new CacheEntry(); |
| mCache.put(cacheKey, entry); |
| |
| // Check the DB first. |
| if (!getEntryFromDB(componentName, user, entry, useLowResIcon)) { |
| if (info != null) { |
| entry.icon = Utilities.createIconBitmap(info.getBadgedIcon(mIconDpi), mContext); |
| } else { |
| if (usePackageIcon) { |
| CacheEntry packageEntry = getEntryForPackageLocked( |
| componentName.getPackageName(), user, false); |
| if (packageEntry != null) { |
| if (DEBUG) Log.d(TAG, "using package default icon for " + |
| componentName.toShortString()); |
| entry.icon = packageEntry.icon; |
| entry.title = packageEntry.title; |
| entry.contentDescription = packageEntry.contentDescription; |
| } |
| } |
| if (entry.icon == null) { |
| if (DEBUG) Log.d(TAG, "using default icon for " + |
| componentName.toShortString()); |
| entry.icon = getDefaultIcon(user); |
| } |
| } |
| } |
| |
| if (TextUtils.isEmpty(entry.title) && info != null) { |
| entry.title = info.getLabel().toString(); |
| entry.contentDescription = mUserManager.getBadgedLabelForUser(entry.title, user); |
| } |
| } |
| return entry; |
| } |
| |
| /** |
| * Adds a default package entry in the cache. This entry is not persisted and will be removed |
| * when the cache is flushed. |
| */ |
| public synchronized void cachePackageInstallInfo(String packageName, UserHandleCompat user, |
| Bitmap icon, CharSequence title) { |
| removeFromMemCacheLocked(packageName, user); |
| |
| CacheEntry entry = getEntryForPackageLocked(packageName, user, false); |
| if (!TextUtils.isEmpty(title)) { |
| entry.title = title; |
| } |
| if (icon != null) { |
| entry.icon = Utilities.createIconBitmap(icon, mContext); |
| } |
| } |
| |
| /** |
| * Gets an entry for the package, which can be used as a fallback entry for various components. |
| * This method is not thread safe, it must be called from a synchronized method. |
| * |
| */ |
| private CacheEntry getEntryForPackageLocked(String packageName, UserHandleCompat user, |
| boolean useLowResIcon) { |
| ComponentName cn = new ComponentName(packageName, EMPTY_CLASS_NAME); |
| ComponentKey cacheKey = new ComponentKey(cn, user); |
| CacheEntry entry = mCache.get(cacheKey); |
| if (entry == null || (entry.isLowResIcon && !useLowResIcon)) { |
| entry = new CacheEntry(); |
| mCache.put(cacheKey, entry); |
| |
| // Check the DB first. |
| if (!getEntryFromDB(cn, user, entry, useLowResIcon)) { |
| try { |
| PackageInfo info = mPackageManager.getPackageInfo(packageName, 0); |
| ApplicationInfo appInfo = info.applicationInfo; |
| if (appInfo == null) { |
| throw new NameNotFoundException("ApplicationInfo is null"); |
| } |
| Drawable drawable = mUserManager.getBadgedDrawableForUser( |
| appInfo.loadIcon(mPackageManager), user); |
| entry.icon = Utilities.createIconBitmap(drawable, mContext); |
| entry.title = appInfo.loadLabel(mPackageManager); |
| entry.contentDescription = mUserManager.getBadgedLabelForUser(entry.title, user); |
| entry.isLowResIcon = false; |
| |
| // Add the icon in the DB here, since these do not get written during |
| // package updates. |
| ContentValues values = |
| mIconDb.newContentValues(entry.icon, entry.title.toString()); |
| addIconToDB(values, cn, info, mUserManager.getSerialNumberForUser(user)); |
| |
| } catch (NameNotFoundException e) { |
| if (DEBUG) Log.d(TAG, "Application not installed " + packageName); |
| } |
| } |
| } |
| return entry; |
| } |
| |
| /** |
| * Pre-load an icon into the persistent cache. |
| * |
| * <P>Queries for a component that does not exist in the package manager |
| * will be answered by the persistent cache. |
| * |
| * @param componentName the icon should be returned for this component |
| * @param icon the icon to be persisted |
| * @param dpi the native density of the icon |
| */ |
| public void preloadIcon(ComponentName componentName, Bitmap icon, int dpi, String label, |
| long userSerial) { |
| // TODO rescale to the correct native DPI |
| try { |
| PackageManager packageManager = mContext.getPackageManager(); |
| packageManager.getActivityIcon(componentName); |
| // component is present on the system already, do nothing |
| return; |
| } catch (PackageManager.NameNotFoundException e) { |
| // pass |
| } |
| |
| ContentValues values = mIconDb.newContentValues(icon, label); |
| values.put(IconDB.COLUMN_COMPONENT, componentName.flattenToString()); |
| values.put(IconDB.COLUMN_USER, userSerial); |
| mIconDb.getWritableDatabase().insertWithOnConflict(IconDB.TABLE_NAME, null, values, |
| SQLiteDatabase.CONFLICT_REPLACE); |
| } |
| |
| private boolean getEntryFromDB(ComponentName component, UserHandleCompat user, |
| CacheEntry entry, boolean lowRes) { |
| Cursor c = mIconDb.getReadableDatabase().query(IconDB.TABLE_NAME, |
| new String[] {lowRes ? IconDB.COLUMN_ICON_LOW_RES : IconDB.COLUMN_ICON, |
| IconDB.COLUMN_LABEL}, |
| IconDB.COLUMN_COMPONENT + " = ? AND " + IconDB.COLUMN_USER + " = ?", |
| new String[] {component.flattenToString(), |
| Long.toString(mUserManager.getSerialNumberForUser(user))}, |
| null, null, null); |
| try { |
| if (c.moveToNext()) { |
| entry.icon = loadIconNoResize(c, 0); |
| entry.isLowResIcon = lowRes; |
| entry.title = c.getString(1); |
| if (entry.title == null) { |
| entry.title = ""; |
| entry.contentDescription = ""; |
| } else { |
| entry.contentDescription = mUserManager.getBadgedLabelForUser(entry.title, user); |
| } |
| return true; |
| } |
| } finally { |
| c.close(); |
| } |
| return false; |
| } |
| |
| public static class IconLoadRequest { |
| private final Runnable mRunnable; |
| private final Handler mHandler; |
| |
| IconLoadRequest(Runnable runnable, Handler handler) { |
| mRunnable = runnable; |
| mHandler = handler; |
| } |
| |
| public void cancel() { |
| mHandler.removeCallbacks(mRunnable); |
| } |
| } |
| |
| private static final class IconDB extends SQLiteOpenHelper { |
| private final static int DB_VERSION = 3; |
| |
| private final static String TABLE_NAME = "icons"; |
| private final static String COLUMN_ROWID = "rowid"; |
| private final static String COLUMN_COMPONENT = "componentName"; |
| private final static String COLUMN_USER = "profileId"; |
| private final static String COLUMN_LAST_UPDATED = "lastUpdated"; |
| private final static String COLUMN_VERSION = "version"; |
| private final static String COLUMN_ICON = "icon"; |
| private final static String COLUMN_ICON_LOW_RES = "icon_low_res"; |
| private final static String COLUMN_LABEL = "label"; |
| private final static String COLUMN_SYSTEM_STATE = "system_state"; |
| |
| public String mSystemState; |
| |
| public IconDB(Context context) { |
| super(context, LauncherFiles.APP_ICONS_DB, null, DB_VERSION); |
| updateSystemStateString(context); |
| } |
| |
| public void updateSystemStateString(Context c) { |
| mSystemState = Locale.getDefault().toString() + "," |
| + c.getResources().getConfiguration().mcc; |
| } |
| |
| |
| @Override |
| public void onCreate(SQLiteDatabase db) { |
| db.execSQL("CREATE TABLE IF NOT EXISTS " + TABLE_NAME + " (" + |
| COLUMN_COMPONENT + " TEXT NOT NULL, " + |
| COLUMN_USER + " INTEGER NOT NULL, " + |
| COLUMN_LAST_UPDATED + " INTEGER NOT NULL DEFAULT 0, " + |
| COLUMN_VERSION + " INTEGER NOT NULL DEFAULT 0, " + |
| COLUMN_ICON + " BLOB, " + |
| COLUMN_ICON_LOW_RES + " BLOB, " + |
| COLUMN_LABEL + " TEXT, " + |
| COLUMN_SYSTEM_STATE + " TEXT, " + |
| "PRIMARY KEY (" + COLUMN_COMPONENT + ", " + COLUMN_USER + ") " + |
| ");"); |
| } |
| |
| @Override |
| public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { |
| if (oldVersion != newVersion) { |
| clearDB(db); |
| } |
| } |
| |
| @Override |
| public void onDowngrade(SQLiteDatabase db, int oldVersion, int newVersion) { |
| if (oldVersion != newVersion) { |
| clearDB(db); |
| } |
| } |
| |
| private void clearDB(SQLiteDatabase db) { |
| db.execSQL("DROP TABLE IF EXISTS " + TABLE_NAME); |
| onCreate(db); |
| } |
| |
| public ContentValues newContentValues(Bitmap icon, String label) { |
| ContentValues values = new ContentValues(); |
| values.put(COLUMN_ICON, Utilities.flattenBitmap(icon)); |
| values.put(COLUMN_ICON_LOW_RES, Utilities.flattenBitmap( |
| Bitmap.createScaledBitmap(icon, |
| icon.getWidth() / LOW_RES_SCALE_FACTOR, |
| icon.getHeight() / LOW_RES_SCALE_FACTOR, true))); |
| values.put(COLUMN_LABEL, label); |
| values.put(COLUMN_SYSTEM_STATE, mSystemState); |
| return values; |
| } |
| } |
| |
| private static Bitmap loadIconNoResize(Cursor c, int iconIndex) { |
| byte[] data = c.getBlob(iconIndex); |
| try { |
| return BitmapFactory.decodeByteArray(data, 0, data.length); |
| } catch (Exception e) { |
| return null; |
| } |
| } |
| } |