diff --git a/quickstep/res/values/dimens.xml b/quickstep/res/values/dimens.xml
index 0199cd9537..9e4d60c5e5 100644
--- a/quickstep/res/values/dimens.xml
+++ b/quickstep/res/values/dimens.xml
@@ -48,4 +48,7 @@
168dp
+
+ 16dp
+ 4dp
diff --git a/quickstep/src/com/android/launcher3/uioverrides/AllAppsScrim.java b/quickstep/src/com/android/launcher3/uioverrides/AllAppsScrim.java
new file mode 100644
index 0000000000..3c741b337e
--- /dev/null
+++ b/quickstep/src/com/android/launcher3/uioverrides/AllAppsScrim.java
@@ -0,0 +1,154 @@
+/*
+ * 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.uioverrides;
+
+import static com.android.launcher3.anim.Interpolators.ACCEL_2;
+import static com.android.launcher3.anim.Interpolators.DEACCEL_2;
+
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.Paint;
+import android.support.v4.graphics.ColorUtils;
+
+import com.android.launcher3.DeviceProfile;
+import com.android.launcher3.Launcher;
+import com.android.launcher3.R;
+import com.android.launcher3.Utilities;
+import com.android.launcher3.allapps.AllAppsContainerView;
+import com.android.launcher3.graphics.ViewScrim;
+import com.android.launcher3.util.Themes;
+
+/**
+ * Scrim used for all-apps and shelf in Overview
+ * In transposed layout, it behaves as a simple color scrim.
+ * In portrait layout, it draws a rounded rect such that
+ * From normal state to overview state, the shelf just fades in and does not move
+ * From overview state to all-apps state the self moves up and fades in to cover the screen
+ */
+public class AllAppsScrim extends ViewScrim {
+
+ private static final int THRESHOLD_ALPHA_DARK = 102;
+ private static final int THRESHOLD_ALPHA_LIGHT = 46;
+
+ private final Launcher mLauncher;
+ private final int mEndColor;
+
+ private int mProgressColor;
+
+ // In transposed layout, we simply draw a flat color.
+ private boolean mDrawingFlatColor;
+
+ private final Paint mVerticalPaint;
+ private float mVerticalProgress;
+
+ private final int mEndAlpha;
+ private final int mThresholdAlpha;
+ private final float mRadius;
+ private final float mTopPadding;
+
+ // Max vertical progress after which the scrim stops moving.
+ private float mMoveThreshold;
+ // Minimum visible size of the scrim.
+ private int mMinSize;
+ private float mDrawFactor = 0;
+
+ public AllAppsScrim(AllAppsContainerView view) {
+ super(view);
+ mLauncher = Launcher.getLauncher(view.getContext());
+ mEndColor = Themes.getAttrColor(mLauncher, R.attr.allAppsScrimColor);
+ mProgressColor = mEndColor;
+
+ mEndAlpha = Color.alpha(mEndColor);
+ mThresholdAlpha = Themes.getAttrBoolean(mLauncher, R.attr.isMainColorDark)
+ ? THRESHOLD_ALPHA_DARK : THRESHOLD_ALPHA_LIGHT;
+ mRadius = mLauncher.getResources().getDimension(R.dimen.shelf_surface_radius);
+ mTopPadding = mLauncher.getResources().getDimension(R.dimen.shelf_surface_top_padding);
+
+ mVerticalPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
+ mVerticalPaint.setColor(ColorUtils.setAlphaComponent(mEndColor, 255));
+
+ // Just assume the easiest UI for now, until we have the proper layout information.
+ mDrawingFlatColor = true;
+ }
+
+ @Override
+ protected void onProgressChanged() {
+ mProgressColor = ColorUtils.setAlphaComponent(mEndColor,
+ Math.round(DEACCEL_2.getInterpolation(mProgress) * Color.alpha(mEndColor)));
+ }
+
+ @Override
+ public void draw(Canvas canvas, int width, int height) {
+ if (mDrawingFlatColor) {
+ if (mProgress > 0) {
+ canvas.drawColor(mProgressColor);
+ }
+ return;
+ }
+
+ if (mVerticalPaint.getAlpha() == 0) {
+ return;
+ } else if (mDrawFactor <= 0) {
+ canvas.drawPaint(mVerticalPaint);
+ } else {
+ float top = (height - mMinSize) * mDrawFactor - mTopPadding;
+ canvas.drawRoundRect(0, top - mRadius, width, height + mRadius,
+ mRadius, mRadius, mVerticalPaint);
+ }
+ }
+
+ public void reInitUi() {
+ DeviceProfile dp = mLauncher.getDeviceProfile();
+ mDrawingFlatColor = dp.isVerticalBarLayout();
+
+ if (!mDrawingFlatColor) {
+ float swipeLength = OverviewState.getDefaultSwipeHeight(mLauncher);
+ mMoveThreshold = 1 - swipeLength / mLauncher.getAllAppsController().getShiftRange();
+ mMinSize = dp.hotseatBarSizePx + dp.getInsets().bottom;
+ onVerticalProgress(mVerticalProgress);
+ }
+ invalidate();
+ }
+
+ public void onVerticalProgress(float progress) {
+ mVerticalProgress = progress;
+ if (mDrawingFlatColor) {
+ return;
+ }
+
+ float drawFactor;
+ int alpha;
+ if (mVerticalProgress >= mMoveThreshold) {
+ drawFactor = 1;
+ alpha = mVerticalProgress >= 1 ? 0 : Math.round(mThresholdAlpha
+ * ACCEL_2.getInterpolation((1 - mVerticalProgress) / (1 - mMoveThreshold)));
+ } else if (mVerticalProgress <= 0) {
+ drawFactor = 0;
+ alpha = mEndAlpha;
+ } else {
+ drawFactor = mVerticalProgress / mMoveThreshold;
+ alpha = mEndAlpha - Math.round((mEndAlpha - mThresholdAlpha) * drawFactor);
+ }
+ alpha = Utilities.boundToRange(alpha, 0, 255);
+ if (alpha != mVerticalPaint.getAlpha() || drawFactor != mDrawFactor) {
+ mVerticalPaint.setAlpha(alpha);
+ mDrawFactor = drawFactor;
+ invalidate();
+ }
+ }
+
+}
diff --git a/quickstep/src/com/android/quickstep/util/LayoutUtils.java b/quickstep/src/com/android/quickstep/util/LayoutUtils.java
index aeaebea448..b1fa5e2b82 100644
--- a/quickstep/src/com/android/quickstep/util/LayoutUtils.java
+++ b/quickstep/src/com/android/quickstep/util/LayoutUtils.java
@@ -38,7 +38,14 @@ public class LayoutUtils {
private @interface MultiWindowStrategy {}
public static void calculateLauncherTaskSize(Context context, DeviceProfile dp, Rect outRect) {
- float extraSpace = dp.isVerticalBarLayout() ? 0 : dp.hotseatBarSizePx;
+ float extraSpace;
+ if (dp.isVerticalBarLayout()) {
+ extraSpace = 0;
+ } else {
+ Resources res = context.getResources();
+ extraSpace = dp.hotseatBarSizePx + res.getDimension(R.dimen.shelf_surface_top_padding)
+ + res.getDimension(R.dimen.shelf_surface_radius);
+ }
calculateTaskSize(context, dp, extraSpace, MULTI_WINDOW_STRATEGY_HALF_SCREEN, outRect);
}
diff --git a/res/values/styles.xml b/res/values/styles.xml
index 38b5daedbf..8526d7c1da 100644
--- a/res/values/styles.xml
+++ b/res/values/styles.xml
@@ -28,7 +28,7 @@