Updating IconCache to maintain a persistent of icons
> IconDB maintains a DB of icons keyed on ComponentName + User
> During loader, icons & labels are loaded first from the DB, and
if the entry doesn't exist, loaded using packageManager
> After the loader completes, IconDB updates any entry which might have
changed, while the launcher was dead.
Change-Id: I7a6021cb6d1ca1e66fa5a0bdd21e1543e0cf66fc
diff --git a/src/com/android/launcher3/IconCache.java b/src/com/android/launcher3/IconCache.java
index 5a0875b..91d4aaf 100644
--- a/src/com/android/launcher3/IconCache.java
+++ b/src/com/android/launcher3/IconCache.java
@@ -18,15 +18,19 @@
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.text.TextUtils;
@@ -37,15 +41,10 @@
import com.android.launcher3.compat.UserHandleCompat;
import com.android.launcher3.compat.UserManagerCompat;
-import java.io.ByteArrayOutputStream;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.FileOutputStream;
-import java.io.IOException;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
+import java.util.List;
import java.util.Map.Entry;
/**
@@ -56,7 +55,6 @@
private static final String TAG = "Launcher.IconCache";
private static final int INITIAL_ICON_CACHE_CAPACITY = 50;
- private static final String RESOURCE_FILE_PREFIX = "icon_";
// Empty class name is used for storing package default entry.
private static final String EMPTY_CLASS_NAME = ".";
@@ -98,7 +96,8 @@
private final LauncherAppsCompat mLauncherApps;
private final HashMap<CacheKey, CacheEntry> mCache =
new HashMap<CacheKey, CacheEntry>(INITIAL_ICON_CACHE_CAPACITY);
- private int mIconDpi;
+ private final int mIconDpi;
+ private final IconDB mIconDb;
public IconCache(Context context) {
ActivityManager activityManager =
@@ -109,13 +108,10 @@
mUserManager = UserManagerCompat.getInstance(mContext);
mLauncherApps = LauncherAppsCompat.getInstance(mContext);
mIconDpi = activityManager.getLauncherLargeIconDensity();
-
- // need to set mIconDpi before getting default icon
- UserHandleCompat myUser = UserHandleCompat.myUserHandle();
- mDefaultIcons.put(myUser, makeDefaultIcon(myUser));
+ mIconDb = new IconDB(context);
}
- public Drawable getFullResDefaultActivityIcon() {
+ private Drawable getFullResDefaultActivityIcon() {
return getFullResIcon(Resources.getSystem(), android.R.mipmap.sym_def_app_icon);
}
@@ -188,9 +184,9 @@
}
/**
- * Remove any records for the supplied package name.
+ * Remove any records for the supplied package name from memory.
*/
- public synchronized void remove(String packageName, UserHandleCompat user) {
+ private void removeFromMemCacheLocked(String packageName, UserHandleCompat user) {
HashSet<CacheKey> forDeletion = new HashSet<CacheKey>();
for (CacheKey key: mCache.keySet()) {
if (key.componentName.getPackageName().equals(packageName)
@@ -204,6 +200,140 @@
}
/**
+ * 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)) {
+ addIconToDB(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) {
+ 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_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);
+
+ 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) {
+ continue;
+ }
+ if (app == null) {
+ itemsToRemove.add(c.getInt(rowIndex));
+ continue;
+ }
+ ContentValues values = updateCacheAndGetContentValues(app);
+ mIconDb.getWritableDatabase().update(IconDB.TABLE_NAME, values,
+ IconDB.COLUMN_COMPONENT + " = ?",
+ new String[] { cn });
+
+ 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;
+ }
+ addIconToDB(app, info, userSerial);
+ }
+ return updatedPackages;
+ }
+
+ private void addIconToDB(LauncherActivityInfoCompat app, PackageInfo info, long userSerial) {
+ ContentValues values = updateCacheAndGetContentValues(app);
+ values.put(IconDB.COLUMN_COMPONENT, app.getComponentName().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 CacheKey(app.getComponentName(), app.getUser()), entry);
+
+ ContentValues values = new ContentValues();
+ values.put(IconDB.COLUMN_ICON, ItemInfo.flattenBitmap(entry.icon));
+ values.put(IconDB.COLUMN_LABEL, entry.title.toString());
+ return values;
+ }
+
+
+ /**
* Empty out the cache.
*/
public synchronized void flush() {
@@ -227,10 +357,8 @@
/**
* Fill in "application" with the icon and label for "info."
*/
- public synchronized void getTitleAndIcon(AppInfo application, LauncherActivityInfoCompat info,
- HashMap<Object, CharSequence> labelCache) {
- CacheEntry entry = cacheLocked(application.componentName, info, labelCache,
- info.getUser(), false);
+ public synchronized void getTitleAndIcon(AppInfo application, LauncherActivityInfoCompat info) {
+ CacheEntry entry = cacheLocked(application.componentName, info, info.getUser(), false);
application.title = entry.title;
application.iconBitmap = entry.icon;
@@ -246,15 +374,16 @@
}
LauncherActivityInfoCompat launcherActInfo = mLauncherApps.resolveActivity(intent, user);
- CacheEntry entry = cacheLocked(component, launcherActInfo, null, user, true);
+ CacheEntry entry = cacheLocked(component, launcherActInfo, user, true);
return entry.icon;
}
/**
- * Fill in "shortcutInfo" with the icon and label for "info."
+ * 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 usePkgIcon) {
+ 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.
@@ -263,16 +392,22 @@
shortcutInfo.title = "";
shortcutInfo.usingFallbackIcon = true;
} else {
- LauncherActivityInfoCompat launcherActInfo =
- mLauncherApps.resolveActivity(intent, user);
- CacheEntry entry = cacheLocked(component, launcherActInfo, null, user, usePkgIcon);
-
- shortcutInfo.setIcon(entry.icon);
- shortcutInfo.title = entry.title;
- shortcutInfo.usingFallbackIcon = isDefaultIcon(entry.icon, user);
+ LauncherActivityInfoCompat info = mLauncherApps.resolveActivity(intent, user);
+ getTitleAndIcon(shortcutInfo, component, info, user, true);
}
}
+ /**
+ * 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) {
+ CacheEntry entry = cacheLocked(component, info, user, usePkgIcon);
+ shortcutInfo.setIcon(entry.icon);
+ shortcutInfo.title = entry.title;
+ shortcutInfo.usingFallbackIcon = isDefaultIcon(entry.icon, user);
+ }
public synchronized Bitmap getDefaultIcon(UserHandleCompat user) {
if (!mDefaultIcons.containsKey(user)) {
@@ -281,16 +416,6 @@
return mDefaultIcons.get(user);
}
- public synchronized Bitmap getIcon(ComponentName component, LauncherActivityInfoCompat info,
- HashMap<Object, CharSequence> labelCache) {
- if (info == null || component == null) {
- return null;
- }
-
- CacheEntry entry = cacheLocked(component, info, labelCache, info.getUser(), false);
- return entry.icon;
- }
-
public boolean isDefaultIcon(Bitmap icon, UserHandleCompat user) {
return mDefaultIcons.get(user) == icon;
}
@@ -300,35 +425,17 @@
* This method is not thread safe, it must be called from a synchronized method.
*/
private CacheEntry cacheLocked(ComponentName componentName, LauncherActivityInfoCompat info,
- HashMap<Object, CharSequence> labelCache, UserHandleCompat user, boolean usePackageIcon) {
+ UserHandleCompat user, boolean usePackageIcon) {
CacheKey cacheKey = new CacheKey(componentName, user);
CacheEntry entry = mCache.get(cacheKey);
if (entry == null) {
entry = new CacheEntry();
-
mCache.put(cacheKey, entry);
- if (info != null) {
- ComponentName labelKey = info.getComponentName();
- if (labelCache != null && labelCache.containsKey(labelKey)) {
- entry.title = labelCache.get(labelKey).toString();
- } else {
- entry.title = info.getLabel().toString();
- if (labelCache != null) {
- labelCache.put(labelKey, entry.title);
- }
- }
-
- entry.contentDescription = mUserManager.getBadgedLabelForUser(entry.title, user);
- entry.icon = Utilities.createIconBitmap(
- info.getBadgedIcon(mIconDpi), mContext);
- } else {
- entry.title = "";
- Bitmap preloaded = getPreloadedIcon(componentName, user);
- if (preloaded != null) {
- if (DEBUG) Log.d(TAG, "using preloaded icon for " +
- componentName.toShortString());
- entry.icon = preloaded;
+ // Check the DB first.
+ if (!getEntryFromDB(componentName, user, entry)) {
+ if (info != null) {
+ entry.icon = Utilities.createIconBitmap(info.getBadgedIcon(mIconDpi), mContext);
} else {
if (usePackageIcon) {
CacheEntry packageEntry = getEntryForPackage(
@@ -338,6 +445,7 @@
componentName.toShortString());
entry.icon = packageEntry.icon;
entry.title = packageEntry.title;
+ entry.contentDescription = packageEntry.contentDescription;
}
}
if (entry.icon == null) {
@@ -347,6 +455,11 @@
}
}
}
+
+ if (TextUtils.isEmpty(entry.title) && info != null) {
+ entry.title = info.getLabel().toString();
+ entry.contentDescription = mUserManager.getBadgedLabelForUser(entry.title, user);
+ }
}
return entry;
}
@@ -357,7 +470,7 @@
*/
public synchronized void cachePackageInstallInfo(String packageName, UserHandleCompat user,
Bitmap icon, CharSequence title) {
- remove(packageName, user);
+ removeFromMemCacheLocked(packageName, user);
CacheEntry entry = getEntryForPackage(packageName, user);
if (!TextUtils.isEmpty(title)) {
@@ -379,48 +492,36 @@
if (entry == null) {
entry = new CacheEntry();
entry.title = "";
+ entry.contentDescription = "";
mCache.put(cacheKey, entry);
try {
ApplicationInfo info = mPackageManager.getApplicationInfo(packageName, 0);
- entry.title = info.loadLabel(mPackageManager);
entry.icon = Utilities.createIconBitmap(info.loadIcon(mPackageManager), mContext);
+ entry.title = info.loadLabel(mPackageManager);
+ entry.contentDescription = mUserManager.getBadgedLabelForUser(entry.title, user);
} catch (NameNotFoundException e) {
if (DEBUG) Log.d(TAG, "Application not installed " + packageName);
}
-
- if (entry.icon == null) {
- entry.icon = getPreloadedIcon(cn, user);
- }
}
return entry;
}
- public synchronized HashMap<ComponentName,Bitmap> getAllIcons() {
- HashMap<ComponentName,Bitmap> set = new HashMap<ComponentName,Bitmap>();
- for (CacheKey ck : mCache.keySet()) {
- final CacheEntry e = mCache.get(ck);
- set.put(ck.componentName, e.icon);
- }
- return set;
- }
-
/**
* 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 context application context
* @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 static void preloadIcon(Context context, ComponentName componentName, Bitmap icon,
- int dpi) {
+ public void preloadIcon(ComponentName componentName, Bitmap icon, int dpi, String label,
+ long userSerial) {
// TODO rescale to the correct native DPI
try {
- PackageManager packageManager = context.getPackageManager();
+ PackageManager packageManager = mContext.getPackageManager();
packageManager.getActivityIcon(componentName);
// component is present on the system already, do nothing
return;
@@ -428,100 +529,86 @@
// pass
}
- final String key = componentName.flattenToString();
- FileOutputStream resourceFile = null;
+ ContentValues values = new ContentValues();
+ values.put(IconDB.COLUMN_COMPONENT, componentName.flattenToString());
+ values.put(IconDB.COLUMN_USER, userSerial);
+ values.put(IconDB.COLUMN_ICON, ItemInfo.flattenBitmap(icon));
+ values.put(IconDB.COLUMN_LABEL, label);
+ mIconDb.getWritableDatabase().insertWithOnConflict(IconDB.TABLE_NAME, null, values,
+ SQLiteDatabase.CONFLICT_REPLACE);
+ }
+
+ private boolean getEntryFromDB(ComponentName component, UserHandleCompat user, CacheEntry entry) {
+ Cursor c = mIconDb.getReadableDatabase().query(IconDB.TABLE_NAME,
+ new String[] {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 {
- resourceFile = context.openFileOutput(getResourceFilename(componentName),
- Context.MODE_PRIVATE);
- ByteArrayOutputStream os = new ByteArrayOutputStream();
- if (icon.compress(android.graphics.Bitmap.CompressFormat.PNG, 75, os)) {
- byte[] buffer = os.toByteArray();
- resourceFile.write(buffer, 0, buffer.length);
- } else {
- Log.w(TAG, "failed to encode cache for " + key);
- return;
- }
- } catch (FileNotFoundException e) {
- Log.w(TAG, "failed to pre-load cache for " + key, e);
- } catch (IOException e) {
- Log.w(TAG, "failed to pre-load cache for " + key, e);
- } finally {
- if (resourceFile != null) {
- try {
- resourceFile.close();
- } catch (IOException e) {
- Log.d(TAG, "failed to save restored icon for: " + key, e);
+ if (c.moveToNext()) {
+ entry.icon = Utilities.createIconBitmap(c, 0, mContext);
+ entry.title = c.getString(1);
+ if (entry.title == null) {
+ entry.title = "";
+ entry.contentDescription = "";
+ } else {
+ entry.contentDescription = mUserManager.getBadgedLabelForUser(entry.title, user);
}
+ return true;
}
- }
- }
-
- /**
- * Read a pre-loaded icon from the persistent icon cache.
- *
- * @param componentName the component that should own the icon
- * @returns a bitmap if one is cached, or null.
- */
- private Bitmap getPreloadedIcon(ComponentName componentName, UserHandleCompat user) {
- final String key = componentName.flattenToShortString();
-
- // We don't keep icons for other profiles in persistent cache.
- if (!user.equals(UserHandleCompat.myUserHandle())) {
- return null;
- }
-
- if (DEBUG) Log.v(TAG, "looking for pre-load icon for " + key);
- Bitmap icon = null;
- FileInputStream resourceFile = null;
- try {
- resourceFile = mContext.openFileInput(getResourceFilename(componentName));
- byte[] buffer = new byte[1024];
- ByteArrayOutputStream bytes = new ByteArrayOutputStream();
- int bytesRead = 0;
- while(bytesRead >= 0) {
- bytes.write(buffer, 0, bytesRead);
- bytesRead = resourceFile.read(buffer, 0, buffer.length);
- }
- if (DEBUG) Log.d(TAG, "read " + bytes.size());
- icon = BitmapFactory.decodeByteArray(bytes.toByteArray(), 0, bytes.size());
- if (icon == null) {
- Log.w(TAG, "failed to decode pre-load icon for " + key);
- }
- } catch (FileNotFoundException e) {
- if (DEBUG) Log.d(TAG, "there is no restored icon for: " + key);
- } catch (IOException e) {
- Log.w(TAG, "failed to read pre-load icon for: " + key, e);
} finally {
- if(resourceFile != null) {
- try {
- resourceFile.close();
- } catch (IOException e) {
- Log.d(TAG, "failed to manage pre-load icon file: " + key, e);
- }
+ c.close();
+ }
+ return false;
+ }
+
+ private static final class IconDB extends SQLiteOpenHelper {
+ private final static int DB_VERSION = 1;
+
+ 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_LABEL = "label";
+
+ public IconDB(Context context) {
+ super(context, LauncherFiles.APP_ICONS_DB, null, DB_VERSION);
+ }
+
+ @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_LABEL + " TEXT, " +
+ "PRIMARY KEY (" + COLUMN_COMPONENT + ", " + COLUMN_USER + ") " +
+ ");");
+ }
+
+ @Override
+ public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+ if (oldVersion != newVersion) {
+ clearDB(db);
}
}
- return icon;
- }
-
- /**
- * Remove a pre-loaded icon from the persistent icon cache.
- *
- * @param componentName the component that should own the icon
- */
- public void deletePreloadedIcon(ComponentName componentName, UserHandleCompat user) {
- // We don't keep icons for other profiles in persistent cache.
- if (!user.equals(UserHandleCompat.myUserHandle()) || componentName == null) {
- return;
+ @Override
+ public void onDowngrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+ if (oldVersion != newVersion) {
+ clearDB(db);
+ }
}
- remove(componentName, user);
- boolean success = mContext.deleteFile(getResourceFilename(componentName));
- if (DEBUG && success) Log.d(TAG, "removed pre-loaded icon from persistent cache");
- }
- private static String getResourceFilename(ComponentName component) {
- String resourceName = component.flattenToShortString();
- String filename = resourceName.replace(File.separatorChar, '_');
- return RESOURCE_FILE_PREFIX + filename;
+ private void clearDB(SQLiteDatabase db) {
+ db.execSQL("DROP TABLE IF EXISTS " + TABLE_NAME);
+ onCreate(db);
+ }
}
}