Moving some utility classes to icon lib

Change-Id: I0cc19ea02fb0732e9e1778a18c0d2c229232d179
2018-11-07 13:15:46 -08:00
parent 8b8ff994d2
commit 9a4c5be23e
12 changed files with 29 additions and 24 deletions
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2018 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.util;
+
+import static android.database.sqlite.SQLiteDatabase.NO_LOCALIZED_COLLATORS;
+
+import android.content.Context;
+import android.content.ContextWrapper;
+import android.database.DatabaseErrorHandler;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteDatabase.CursorFactory;
+import android.database.sqlite.SQLiteDatabase.OpenParams;
+import android.database.sqlite.SQLiteOpenHelper;
+import android.os.Build;
+
+/**
+ * Extension of {@link SQLiteOpenHelper} which avoids creating default locale table by
+ * A context wrapper which creates databases without support for localized collators.
+ */
+public abstract class NoLocaleSQLiteHelper extends SQLiteOpenHelper {
+
+    private static final boolean ATLEAST_P =
+            Build.VERSION.SDK_INT >= Build.VERSION_CODES.P;
+
+    public NoLocaleSQLiteHelper(Context context, String name, int version) {
+        super(ATLEAST_P ? context : new NoLocalContext(context), name, null, version);
+        if (ATLEAST_P) {
+            setOpenParams(new OpenParams.Builder().addOpenFlags(NO_LOCALIZED_COLLATORS).build());
+        }
+    }
+
+    private static class NoLocalContext extends ContextWrapper {
+        public NoLocalContext(Context base) {
+            super(base);
+        }
+
+        @Override
+        public SQLiteDatabase openOrCreateDatabase(
+                String name, int mode, CursorFactory factory, DatabaseErrorHandler errorHandler) {
+            return super.openOrCreateDatabase(
+                    name, mode | Context.MODE_NO_LOCALIZED_COLLATORS, factory, errorHandler);
+        }
+    }
+}