c896d9d7e6
Bug: 73863865 Test: runtest-MediaComponents Change-Id: Id40f221ae60b1e63afd9ff71950589fe13a7f526
65 lines
2.5 KiB
Java
65 lines
2.5 KiB
Java
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.media.update;
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import android.annotation.NonNull;
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import android.content.res.Resources;
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import android.content.Context;
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import android.content.pm.PackageManager;
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import android.os.Build;
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/**
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* @hide
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*/
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public final class ApiLoader {
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private static Object sMediaLibrary;
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private static final String UPDATE_PACKAGE = "com.android.media.update";
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private static final String UPDATE_CLASS = "com.android.media.update.ApiFactory";
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private static final String UPDATE_METHOD = "initialize";
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private ApiLoader() { }
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public static StaticProvider getProvider(@NonNull Context context) {
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if (context == null) {
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throw new IllegalArgumentException("context shouldn't be null");
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}
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try {
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return (StaticProvider) getMediaLibraryImpl(context);
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} catch (PackageManager.NameNotFoundException | ReflectiveOperationException e) {
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throw new RuntimeException(e);
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}
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}
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// TODO This method may do I/O; Ensure it does not violate (emit warnings in) strict mode.
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private static synchronized Object getMediaLibraryImpl(Context context)
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throws PackageManager.NameNotFoundException, ReflectiveOperationException {
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if (sMediaLibrary != null) return sMediaLibrary;
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// TODO Figure out when to use which package (query media update service)
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int flags = Build.IS_DEBUGGABLE ? 0 : PackageManager.MATCH_FACTORY_ONLY;
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Context libContext = context.createApplicationContext(
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context.getPackageManager().getPackageInfo(UPDATE_PACKAGE, flags).applicationInfo,
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Context.CONTEXT_INCLUDE_CODE | Context.CONTEXT_IGNORE_SECURITY);
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sMediaLibrary = libContext.getClassLoader()
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.loadClass(UPDATE_CLASS)
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.getMethod(UPDATE_METHOD, Resources.class, Resources.Theme.class)
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.invoke(null, libContext.getResources(), libContext.getTheme());
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return sMediaLibrary;
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}
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}
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