| /* |
| * 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.settings.datetime.timezone.model; |
| |
| import android.content.Context; |
| import android.os.Bundle; |
| |
| import androidx.loader.app.LoaderManager; |
| import androidx.loader.content.Loader; |
| |
| import com.android.settingslib.utils.AsyncLoaderCompat; |
| |
| public class TimeZoneDataLoader extends AsyncLoaderCompat<TimeZoneData> { |
| |
| public TimeZoneDataLoader(Context context) { |
| super(context); |
| } |
| |
| @Override |
| public TimeZoneData loadInBackground() { |
| // Heavy operation due to reading the underlying file |
| return TimeZoneData.getInstance(); |
| } |
| |
| @Override |
| protected void onDiscardResult(TimeZoneData result) { |
| // This class doesn't hold resource of the result. |
| } |
| |
| public interface OnDataReadyCallback { |
| void onTimeZoneDataReady(TimeZoneData data); |
| } |
| |
| public static class LoaderCreator implements LoaderManager.LoaderCallbacks<TimeZoneData> { |
| |
| private final Context mContext; |
| private final OnDataReadyCallback mCallback; |
| |
| public LoaderCreator(Context context, OnDataReadyCallback callback) { |
| mContext = context; |
| mCallback = callback; |
| } |
| |
| @Override |
| public Loader onCreateLoader(int id, Bundle args) { |
| return new TimeZoneDataLoader(mContext); |
| } |
| |
| @Override |
| public void onLoadFinished(Loader<TimeZoneData> loader, TimeZoneData data) { |
| if (mCallback != null) { |
| mCallback.onTimeZoneDataReady(data); |
| } |
| } |
| |
| @Override |
| public void onLoaderReset(Loader<TimeZoneData> loader) { |
| //It's okay to keep the time zone data when loader is reset |
| } |
| } |
| } |