Adding a utility class to cache views at an activity level
Bug: 122345781
Change-Id: I9a939e0b19c06c1089c1ceb515f8b97fb5dbb49e
diff --git a/src/com/android/launcher3/BaseActivity.java b/src/com/android/launcher3/BaseActivity.java
index 7f72242..424ffde 100644
--- a/src/com/android/launcher3/BaseActivity.java
+++ b/src/com/android/launcher3/BaseActivity.java
@@ -36,6 +36,7 @@
import com.android.launcher3.uioverrides.UiFactory;
import com.android.launcher3.userevent.nano.LauncherLogProto;
import com.android.launcher3.util.SystemUiController;
+import com.android.launcher3.util.ViewCache;
import com.android.launcher3.views.ActivityContext;
import java.io.FileDescriptor;
@@ -102,6 +103,12 @@
// animation
@InvisibilityFlags private int mForceInvisible;
+ private final ViewCache mViewCache = new ViewCache();
+
+ public ViewCache getViewCache() {
+ return mViewCache;
+ }
+
@Override
public DeviceProfile getDeviceProfile() {
return mDeviceProfile;
diff --git a/src/com/android/launcher3/dragndrop/DragView.java b/src/com/android/launcher3/dragndrop/DragView.java
index 7af12c5..9d46cf2 100644
--- a/src/com/android/launcher3/dragndrop/DragView.java
+++ b/src/com/android/launcher3/dragndrop/DragView.java
@@ -44,7 +44,6 @@
import com.android.launcher3.FastBitmapDrawable;
import com.android.launcher3.ItemInfo;
import com.android.launcher3.Launcher;
-import com.android.launcher3.LauncherModel;
import com.android.launcher3.LauncherSettings;
import com.android.launcher3.LauncherState;
import com.android.launcher3.LauncherStateManager;
@@ -55,6 +54,7 @@
import com.android.launcher3.icons.LauncherIcons;
import com.android.launcher3.util.Themes;
import com.android.launcher3.util.Thunk;
+import com.android.launcher3.util.UiThreadHelper;
import java.util.Arrays;
@@ -210,8 +210,7 @@
return;
}
// Load the adaptive icon on a background thread and add the view in ui thread.
- final Looper workerLooper = LauncherModel.getWorkerLooper();
- new Handler(workerLooper).postAtFrontOfQueue(new Runnable() {
+ new Handler(UiThreadHelper.getBackgroundLooper()).postAtFrontOfQueue(new Runnable() {
@Override
public void run() {
Object[] outObj = new Object[1];
diff --git a/src/com/android/launcher3/folder/FolderIcon.java b/src/com/android/launcher3/folder/FolderIcon.java
index 0a9bc72..250169c 100644
--- a/src/com/android/launcher3/folder/FolderIcon.java
+++ b/src/com/android/launcher3/folder/FolderIcon.java
@@ -102,7 +102,6 @@
private List<BubbleTextView> mCurrentPreviewItems = new ArrayList<>();
boolean mAnimating = false;
- private Rect mTempBounds = new Rect();
private float mSlop;
diff --git a/src/com/android/launcher3/util/ViewCache.java b/src/com/android/launcher3/util/ViewCache.java
new file mode 100644
index 0000000..08b8744
--- /dev/null
+++ b/src/com/android/launcher3/util/ViewCache.java
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2019 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.util;
+
+import android.content.Context;
+import android.util.SparseArray;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+/**
+ * Utility class to cache views at an activity level
+ */
+public class ViewCache {
+
+ protected final SparseArray<CacheEntry> mCache = new SparseArray();
+
+ public void setCacheSize(int layoutId, int size) {
+ mCache.put(layoutId, new CacheEntry(size));
+ }
+
+ public <T extends View> T getView(int layoutId, Context context, ViewGroup parent) {
+ CacheEntry entry = mCache.get(layoutId);
+ if (entry == null) {
+ entry = new CacheEntry(1);
+ mCache.put(layoutId, entry);
+ }
+
+ if (entry.mCurrentSize > 0) {
+ entry.mCurrentSize --;
+ T result = (T) entry.mViews[entry.mCurrentSize];
+ entry.mViews[entry.mCurrentSize] = null;
+ return result;
+ }
+
+ return (T) LayoutInflater.from(context).inflate(layoutId, parent, false);
+ }
+
+ public void recycleView(int layoutId, View view) {
+ CacheEntry entry = mCache.get(layoutId);
+ if (entry != null && entry.mCurrentSize < entry.mMaxSize) {
+ entry.mViews[entry.mCurrentSize] = view;
+ entry.mCurrentSize++;
+ }
+ }
+
+ private static class CacheEntry {
+
+ final int mMaxSize;
+ final View[] mViews;
+
+ int mCurrentSize;
+
+ public CacheEntry(int maxSize) {
+ mMaxSize = maxSize;
+ mViews = new View[maxSize];
+ mCurrentSize = 0;
+ }
+ }
+}
diff --git a/src/com/android/launcher3/views/FloatingIconView.java b/src/com/android/launcher3/views/FloatingIconView.java
index 3d5877a..f63bcdd 100644
--- a/src/com/android/launcher3/views/FloatingIconView.java
+++ b/src/com/android/launcher3/views/FloatingIconView.java
@@ -27,6 +27,7 @@
import android.animation.ObjectAnimator;
import android.animation.ValueAnimator;
import android.annotation.TargetApi;
+import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Outline;
@@ -40,6 +41,7 @@
import android.os.CancellationSignal;
import android.os.Handler;
import android.os.Looper;
+import android.util.AttributeSet;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewOutlineProvider;
@@ -61,6 +63,7 @@
import com.android.launcher3.icons.LauncherIcons;
import com.android.launcher3.popup.SystemShortcut;
import com.android.launcher3.shortcuts.DeepShortcutView;
+import com.android.launcher3.util.UiThreadHelper;
import androidx.annotation.Nullable;
import androidx.annotation.WorkerThread;
@@ -148,12 +151,20 @@
private final SpringAnimation mFgSpringX;
private float mFgTransX;
- private FloatingIconView(Launcher launcher) {
- super(launcher);
- mLauncher = launcher;
+ public FloatingIconView(Context context) {
+ this(context, null);
+ }
+
+ public FloatingIconView(Context context, AttributeSet attrs) {
+ this(context, attrs, 0);
+ }
+
+ public FloatingIconView(Context context, AttributeSet attrs, int defStyleAttr) {
+ super(context, attrs, defStyleAttr);
+ mLauncher = Launcher.getLauncher(context);
mBlurSizeOutline = getResources().getDimensionPixelSize(
R.dimen.blur_size_medium_outline);
- mListenerView = new ListenerView(launcher, null);
+ mListenerView = new ListenerView(context, attrs);
mFgSpringX = new SpringAnimation(this, mFgTransXProperty)
.setSpring(new SpringForce()
@@ -350,6 +361,7 @@
}
@WorkerThread
+ @SuppressWarnings("WrongThread")
private void getIcon(View v, ItemInfo info, boolean isOpening,
Runnable onIconLoadedRunnable, CancellationSignal loadIconSignal) {
final LayoutParams lp = (LayoutParams) getLayoutParams();
@@ -396,7 +408,7 @@
&& finalDrawable instanceof AdaptiveIconDrawable;
int iconOffset = getOffsetForIconBounds(finalDrawable);
- new Handler(Looper.getMainLooper()).post(() -> {
+ mLauncher.getMainExecutor().execute(() -> {
if (isAdaptiveIcon) {
mIsAdaptiveIcon = true;
boolean isFolderIcon = finalDrawable instanceof FolderAdaptiveIcon;
@@ -505,6 +517,7 @@
}
@WorkerThread
+ @SuppressWarnings("WrongThread")
private int getOffsetForIconBounds(Drawable drawable) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O ||
!(drawable instanceof AdaptiveIconDrawable)) {
@@ -515,7 +528,7 @@
Rect bounds = new Rect(0, 0, lp.width + mBlurSizeOutline, lp.height + mBlurSizeOutline);
bounds.inset(mBlurSizeOutline / 2, mBlurSizeOutline / 2);
- try (LauncherIcons li = LauncherIcons.obtain(getContext())) {
+ try (LauncherIcons li = LauncherIcons.obtain(mLauncher)) {
Utilities.scaleRectAboutCenter(bounds, li.getNormalizer().getScale(drawable, null));
}
@@ -604,11 +617,14 @@
* @param isOpening True if this view replaces the icon for app open animation.
*/
public static FloatingIconView getFloatingIconView(Launcher launcher, View originalView,
- boolean hideOriginal, RectF positionOut, boolean isOpening, FloatingIconView recycle) {
- if (recycle != null) {
- recycle.recycle();
- }
- FloatingIconView view = recycle != null ? recycle : new FloatingIconView(launcher);
+ boolean hideOriginal, RectF positionOut, boolean isOpening) {
+ final DragLayer dragLayer = launcher.getDragLayer();
+ ViewGroup parent = (ViewGroup) dragLayer.getParent();
+
+ FloatingIconView view = launcher.getViewCache().getView(R.layout.floating_icon_view,
+ launcher, parent);
+ view.recycle();
+
view.mIsVerticalBarLayout = launcher.getDeviceProfile().isVerticalBarLayout();
view.mOriginalIcon = originalView;
@@ -626,16 +642,15 @@
originalView.setVisibility(INVISIBLE);
};
CancellationSignal loadIconSignal = view.mLoadIconSignal;
- new Handler(LauncherModel.getWorkerLooper()).postAtFrontOfQueue(() -> {
+ new Handler(UiThreadHelper.getBackgroundLooper()).postAtFrontOfQueue(() -> {
view.getIcon(originalView, (ItemInfo) originalView.getTag(), isOpening,
onIconLoaded, loadIconSignal);
});
}
// We need to add it to the overlay, but keep it invisible until animation starts..
- final DragLayer dragLayer = launcher.getDragLayer();
view.setVisibility(INVISIBLE);
- ((ViewGroup) dragLayer.getParent()).addView(view);
+ parent.addView(view);
dragLayer.addView(view.mListenerView);
view.mListenerView.setListener(view::onListenerViewClosed);
@@ -714,6 +729,7 @@
((ViewGroup) dragLayer.getParent()).removeView(this);
dragLayer.removeView(mListenerView);
recycle();
+ mLauncher.getViewCache().recycleView(R.layout.floating_icon_view, this);
}
private void recycle() {