| /* |
| * 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.icons; |
| |
| import static android.content.Intent.ACTION_MANAGED_PROFILE_ADDED; |
| import static android.content.Intent.ACTION_MANAGED_PROFILE_REMOVED; |
| |
| import android.annotation.TargetApi; |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.pm.ApplicationInfo; |
| import android.os.Build; |
| import android.os.Handler; |
| import android.os.HandlerThread; |
| import android.os.Looper; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| import android.util.SparseLongArray; |
| |
| import com.android.launcher3.icons.cache.BaseIconCache; |
| |
| /** |
| * Wrapper class to provide access to {@link BaseIconFactory} and also to provide pool of this class |
| * that are threadsafe. |
| */ |
| @TargetApi(Build.VERSION_CODES.P) |
| public class SimpleIconCache extends BaseIconCache { |
| |
| private static SimpleIconCache sIconCache = null; |
| private static final Object CACHE_LOCK = new Object(); |
| |
| private final SparseLongArray mUserSerialMap = new SparseLongArray(2); |
| private final UserManager mUserManager; |
| |
| public SimpleIconCache(Context context, String dbFileName, Looper bgLooper, int iconDpi, |
| int iconPixelSize, boolean inMemoryCache) { |
| super(context, dbFileName, bgLooper, iconDpi, iconPixelSize, inMemoryCache); |
| mUserManager = context.getSystemService(UserManager.class); |
| |
| // Listen for user cache changes. |
| IntentFilter filter = new IntentFilter(ACTION_MANAGED_PROFILE_ADDED); |
| filter.addAction(ACTION_MANAGED_PROFILE_REMOVED); |
| context.registerReceiver(new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| resetUserCache(); |
| } |
| }, filter, null, new Handler(bgLooper), 0); |
| } |
| |
| @Override |
| protected long getSerialNumberForUser(UserHandle user) { |
| synchronized (mUserSerialMap) { |
| int index = mUserSerialMap.indexOfKey(user.getIdentifier()); |
| if (index >= 0) { |
| return mUserSerialMap.valueAt(index); |
| } |
| long serial = mUserManager.getSerialNumberForUser(user); |
| mUserSerialMap.put(user.getIdentifier(), serial); |
| return serial; |
| } |
| } |
| |
| private void resetUserCache() { |
| synchronized (mUserSerialMap) { |
| mUserSerialMap.clear(); |
| } |
| } |
| |
| @Override |
| protected boolean isInstantApp(ApplicationInfo info) { |
| return info.isInstantApp(); |
| } |
| |
| @Override |
| protected BaseIconFactory getIconFactory() { |
| return IconFactory.obtain(mContext); |
| } |
| |
| public static SimpleIconCache getIconCache(Context context) { |
| synchronized (CACHE_LOCK) { |
| if (sIconCache != null) { |
| return sIconCache; |
| } |
| boolean inMemoryCache = |
| context.getResources().getBoolean(R.bool.simple_cache_enable_im_memory); |
| String dbFileName = context.getString(R.string.cache_db_name); |
| |
| HandlerThread bgThread = new HandlerThread("simple-icon-cache"); |
| bgThread.start(); |
| |
| sIconCache = new SimpleIconCache(context.getApplicationContext(), dbFileName, |
| bgThread.getLooper(), context.getResources().getConfiguration().densityDpi, |
| context.getResources().getDimensionPixelSize(R.dimen.default_icon_bitmap_size), |
| inMemoryCache); |
| return sIconCache; |
| } |
| } |
| } |