+++ /dev/null
-/*
- * Copyright (C) 2011 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;
-
-import android.appwidget.AppWidgetProviderInfo;
-import android.content.ComponentName;
-import android.content.pm.ComponentInfo;
-import android.content.pm.ResolveInfo;
-import android.graphics.Bitmap;
-
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.List;
-
-/**
- * Simple cache mechanism for PagedView outlines.
- */
-public class PagedViewIconCache {
- public static class Key {
- public enum Type {
- ApplicationInfoKey,
- AppWidgetProviderInfoKey,
- ResolveInfoKey
- }
- private final ComponentName mComponentName;
- private final Type mType;
-
- public Key(AppInfo info) {
- mComponentName = info.componentName;
- mType = Type.ApplicationInfoKey;
- }
- public Key(ResolveInfo info) {
- final ComponentInfo ci = info.activityInfo != null ? info.activityInfo :
- info.serviceInfo;
- mComponentName = new ComponentName(ci.packageName, ci.name);
- mType = Type.ResolveInfoKey;
- }
- public Key(AppWidgetProviderInfo info) {
- mComponentName = info.provider;
- mType = Type.AppWidgetProviderInfoKey;
- }
-
- private ComponentName getComponentName() {
- return mComponentName;
- }
- public boolean isKeyType(Type t) {
- return (mType == t);
- }
-
- @Override
- public boolean equals(Object o) {
- if (o instanceof Key) {
- Key k = (Key) o;
- return mComponentName.equals(k.mComponentName);
- }
- return super.equals(o);
- }
- @Override
- public int hashCode() {
- return getComponentName().hashCode();
- }
- }
-
- private final HashMap<Key, Bitmap> mIconOutlineCache = new HashMap<Key, Bitmap>();
-
- public void clear() {
- for (Key key : mIconOutlineCache.keySet()) {
- mIconOutlineCache.get(key).recycle();
- }
- mIconOutlineCache.clear();
- }
- private void retainAll(HashSet<Key> keysToKeep, Key.Type t) {
- HashSet<Key> keysToRemove = new HashSet<Key>(mIconOutlineCache.keySet());
- keysToRemove.removeAll(keysToKeep);
- for (Key key : keysToRemove) {
- if (key.isKeyType(t)) {
- mIconOutlineCache.get(key).recycle();
- mIconOutlineCache.remove(key);
- }
- }
- }
- /** Removes all the keys to applications that aren't in the passed in collection */
- public void retainAllApps(ArrayList<AppInfo> keys) {
- HashSet<Key> keysSet = new HashSet<Key>();
- for (AppInfo info : keys) {
- keysSet.add(new Key(info));
- }
- retainAll(keysSet, Key.Type.ApplicationInfoKey);
- }
- /** Removes all the keys to shortcuts that aren't in the passed in collection */
- public void retainAllShortcuts(List<ResolveInfo> keys) {
- HashSet<Key> keysSet = new HashSet<Key>();
- for (ResolveInfo info : keys) {
- keysSet.add(new Key(info));
- }
- retainAll(keysSet, Key.Type.ResolveInfoKey);
- }
- /** Removes all the keys to widgets that aren't in the passed in collection */
- public void retainAllAppWidgets(List<AppWidgetProviderInfo> keys) {
- HashSet<Key> keysSet = new HashSet<Key>();
- for (AppWidgetProviderInfo info : keys) {
- keysSet.add(new Key(info));
- }
- retainAll(keysSet, Key.Type.AppWidgetProviderInfoKey);
- }
- public void addOutline(Key key, Bitmap b) {
- mIconOutlineCache.put(key, b);
- }
- public void removeOutline(Key key) {
- if (mIconOutlineCache.containsKey(key)) {
- mIconOutlineCache.get(key).recycle();
- mIconOutlineCache.remove(key);
- }
- }
- public Bitmap getOutline(Key key) {
- return mIconOutlineCache.get(key);
- }
-}
private int mAppIconSize;
private IconCache mIconCache;
- private final float sWidgetPreviewIconPaddingPercentage = 0.25f;
+ private static final float sWidgetPreviewIconPaddingPercentage = 0.25f;
private CacheDb mDb;
- private HashMap<String, WeakReference<Bitmap>> mLoadedPreviews;
- private ArrayList<SoftReference<Bitmap>> mUnusedBitmaps;
- private static HashSet<String> sInvalidPackages;
+ private final HashMap<String, WeakReference<Bitmap>> mLoadedPreviews;
+ private final ArrayList<SoftReference<Bitmap>> mUnusedBitmaps;
+ private final static HashSet<String> sInvalidPackages;
static {
sInvalidPackages = new HashSet<String>();
final String name = getObjectName(o);
final String packageName = getObjectPackage(o);
// check if the package is valid
- boolean packageValid = true;
synchronized(sInvalidPackages) {
- packageValid = !sInvalidPackages.contains(packageName);
- }
- if (!packageValid) {
- return null;
+ boolean packageValid = !sInvalidPackages.contains(packageName);
+ if (!packageValid) {
+ return null;
+ }
}
- if (packageValid) {
- synchronized(mLoadedPreviews) {
- // check if it exists in our existing cache
- if (mLoadedPreviews.containsKey(name) && mLoadedPreviews.get(name).get() != null) {
- return mLoadedPreviews.get(name).get();
+ synchronized(mLoadedPreviews) {
+ // check if it exists in our existing cache
+ if (mLoadedPreviews.containsKey(name)) {
+ WeakReference<Bitmap> bitmapReference = mLoadedPreviews.get(name);
+ Bitmap bitmap = bitmapReference.get();
+ if (bitmap != null) {
+ return bitmap;
}
}
}
Bitmap unusedBitmap = null;
synchronized(mUnusedBitmaps) {
// not in cache; we need to load it from the db
- while ((unusedBitmap == null || !unusedBitmap.isMutable() ||
- unusedBitmap.getWidth() != mPreviewBitmapWidth ||
- unusedBitmap.getHeight() != mPreviewBitmapHeight)
- && mUnusedBitmaps.size() > 0) {
- unusedBitmap = mUnusedBitmaps.remove(0).get();
+ while (unusedBitmap == null && mUnusedBitmaps.size() > 0) {
+ Bitmap candidate = mUnusedBitmaps.remove(0).get();
+ if (candidate != null && candidate.isMutable() &&
+ candidate.getWidth() == mPreviewBitmapWidth &&
+ candidate.getHeight() == mPreviewBitmapHeight) {
+ unusedBitmap = candidate;
+ }
}
if (unusedBitmap != null) {
final Canvas c = mCachedAppWidgetPreviewCanvas.get();
unusedBitmap = Bitmap.createBitmap(mPreviewBitmapWidth, mPreviewBitmapHeight,
Bitmap.Config.ARGB_8888);
}
-
- Bitmap preview = null;
-
- if (packageValid) {
- preview = readFromDb(name, unusedBitmap);
- }
+ Bitmap preview = readFromDb(name, unusedBitmap);
if (preview != null) {
synchronized(mLoadedPreviews) {
previewWidth = previewDrawableWidth * cellHSpan;
previewHeight = previewDrawableHeight * cellVSpan;
- defaultPreview = Bitmap.createBitmap(previewWidth, previewHeight,
- Config.ARGB_8888);
+ defaultPreview = Bitmap.createBitmap(previewWidth, previewHeight, Config.ARGB_8888);
final Canvas c = mCachedAppWidgetPreviewCanvas.get();
c.setBitmap(defaultPreview);
previewDrawable.setBounds(0, 0, previewWidth, previewHeight);
- previewDrawable.setTileModeXY(Shader.TileMode.REPEAT,
- Shader.TileMode.REPEAT);
+ previewDrawable.setTileModeXY(Shader.TileMode.REPEAT, Shader.TileMode.REPEAT);
previewDrawable.draw(c);
c.setBitmap(null);
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