| /* |
| * Copyright (C) 2013 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.documentsui; |
| |
| import android.app.ActivityManager; |
| import android.app.Application; |
| import android.content.BroadcastReceiver; |
| import android.content.ContentProviderClient; |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.graphics.Point; |
| import android.net.Uri; |
| import android.os.RemoteException; |
| import android.text.format.DateUtils; |
| |
| public class DocumentsApplication extends Application { |
| private static final long PROVIDER_ANR_TIMEOUT = 20 * DateUtils.SECOND_IN_MILLIS; |
| |
| private RootsCache mRoots; |
| private Point mThumbnailsSize; |
| private ThumbnailCache mThumbnails; |
| |
| public static RootsCache getRootsCache(Context context) { |
| return ((DocumentsApplication) context.getApplicationContext()).mRoots; |
| } |
| |
| public static ThumbnailCache getThumbnailsCache(Context context, Point size) { |
| final DocumentsApplication app = (DocumentsApplication) context.getApplicationContext(); |
| final ThumbnailCache thumbnails = app.mThumbnails; |
| if (!size.equals(app.mThumbnailsSize)) { |
| thumbnails.evictAll(); |
| app.mThumbnailsSize = size; |
| } |
| return thumbnails; |
| } |
| |
| public static ContentProviderClient acquireUnstableProviderOrThrow( |
| ContentResolver resolver, String authority) throws RemoteException { |
| final ContentProviderClient client = resolver.acquireUnstableContentProviderClient( |
| authority); |
| if (client == null) { |
| throw new RemoteException("Failed to acquire provider for " + authority); |
| } |
| client.setDetectNotResponding(PROVIDER_ANR_TIMEOUT); |
| return client; |
| } |
| |
| @Override |
| public void onCreate() { |
| final ActivityManager am = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE); |
| final int memoryClassBytes = am.getMemoryClass() * 1024 * 1024; |
| |
| mRoots = new RootsCache(this); |
| mRoots.updateAsync(); |
| |
| mThumbnails = new ThumbnailCache(memoryClassBytes / 4); |
| |
| final IntentFilter packageFilter = new IntentFilter(); |
| packageFilter.addAction(Intent.ACTION_PACKAGE_ADDED); |
| packageFilter.addAction(Intent.ACTION_PACKAGE_CHANGED); |
| packageFilter.addAction(Intent.ACTION_PACKAGE_REMOVED); |
| packageFilter.addAction(Intent.ACTION_PACKAGE_DATA_CLEARED); |
| packageFilter.addDataScheme("package"); |
| registerReceiver(mCacheReceiver, packageFilter); |
| |
| final IntentFilter localeFilter = new IntentFilter(); |
| localeFilter.addAction(Intent.ACTION_LOCALE_CHANGED); |
| registerReceiver(mCacheReceiver, localeFilter); |
| } |
| |
| @Override |
| public void onTrimMemory(int level) { |
| super.onTrimMemory(level); |
| |
| if (level >= TRIM_MEMORY_MODERATE) { |
| mThumbnails.evictAll(); |
| } else if (level >= TRIM_MEMORY_BACKGROUND) { |
| mThumbnails.trimToSize(mThumbnails.size() / 2); |
| } |
| } |
| |
| private BroadcastReceiver mCacheReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| final Uri data = intent.getData(); |
| if (data != null) { |
| final String packageName = data.getSchemeSpecificPart(); |
| mRoots.updatePackageAsync(packageName); |
| } else { |
| mRoots.updateAsync(); |
| } |
| } |
| }; |
| } |