import android.content.ComponentName;
import android.content.ContentValues;
import android.content.Context;
+import android.content.SharedPreferences;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.content.res.Resources;
public class WidgetPreviewLoader {
static final String TAG = "WidgetPreviewLoader";
+ static final String ANDROID_INCREMENTAL_VERSION_NAME_KEY = "android.incremental.version";
private int mPreviewBitmapWidth;
private int mPreviewBitmapHeight;
mDb = app.getWidgetPreviewCacheDb();
mLoadedPreviews = new HashMap<String, WeakReference<Bitmap>>();
mUnusedBitmaps = new ArrayList<SoftReference<Bitmap>>();
+
+ SharedPreferences sp = context.getSharedPreferences(
+ LauncherAppState.getSharedPreferencesKey(), Context.MODE_PRIVATE);
+ final String lastVersionName = sp.getString(ANDROID_INCREMENTAL_VERSION_NAME_KEY, null);
+ final String versionName = android.os.Build.VERSION.INCREMENTAL;
+ if (!versionName.equals(lastVersionName)) {
+ // clear all the previews whenever the system version changes, to ensure that previews
+ // are up-to-date for any apps that might have been updated with the system
+ clearDb();
+
+ SharedPreferences.Editor editor = sp.edit();
+ editor.putString(ANDROID_INCREMENTAL_VERSION_NAME_KEY, versionName);
+ editor.commit();
+ }
}
public void setPreviewSize(int previewWidth, int previewHeight,
db.insert(CacheDb.TABLE_NAME, null, values);
}
+ private void clearDb() {
+ SQLiteDatabase db = mDb.getWritableDatabase();
+ // Delete everything
+ db.delete(CacheDb.TABLE_NAME, null, null);
+ }
+
public static void removePackageFromDb(final CacheDb cacheDb, final String packageName) {
synchronized(sInvalidPackages) {
sInvalidPackages.add(packageName);