Add new floating action menu for Accessibility targets. (1/n)

Goals:
- Trigger actions of accessibility features would be grouped into the floating menu.

Patch action:
1. Use current Accessibility Target functions to get the corresponding data.
2. The position of the floating menu is at the bottom-right corner of the screen initially.
3. Support dark theme.

Bug: 173958541
Test: atest AccessibilityFloatingMenuTest AccessibilityFloatingMenuViewTest
Change-Id: I28e729520d4eb8ecb0bcc41d4de9d1499380e7f5

packages/SystemUI/res/drawable/accessibility_floating_menu_background.xml

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    Copyright (C) 2021 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.
+-->
+
+<layer-list
+    xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <item android:id="@+id/menu_background_item">
+        <shape android:shape="rectangle">
+            <corners
+                android:bottomLeftRadius="@dimen/accessibility_floating_menu_single_radius"
+                android:bottomRightRadius="0dp"
+                android:topLeftRadius="@dimen/accessibility_floating_menu_single_radius"
+                android:topRightRadius="0dp"/>
+            <solid
+                android:color="@color/accessibility_floating_menu_background"/>
+        </shape>
+    </item>
+</layer-list>

packages/SystemUI/res/layout/accessibility_floating_menu_item.xml

@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    Copyright (C) 2021 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.
+-->
+
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:padding="@dimen/accessibility_floating_menu_padding"
+    android:orientation="vertical"
+    android:gravity="center">
+
+    <View
+        android:id="@+id/icon_view"
+        android:layout_width="@dimen/accessibility_floating_menu_width_height"
+        android:layout_height="@dimen/accessibility_floating_menu_width_height"/>
+
+    <View
+        android:id="@+id/transparent_divider"
+        android:layout_width="match_parent"
+        android:layout_height="@dimen/accessibility_floating_menu_padding"/>
+
+</LinearLayout>

packages/SystemUI/res/values-night/colors.xml

@@ -102,4 +102,6 @@
     <color name="privacy_circle_camera">#81C995</color> <!-- g300 -->
     <color name="privacy_circle_microphone_location">#FCAD70</color> <!--o300 -->
 
+    <!-- Accessibility floating menu -->
+    <color name="accessibility_floating_menu_background">#B3000000</color> <!-- 70% -->
 </resources>

packages/SystemUI/res/values/colors.xml

@@ -275,4 +275,8 @@
     <!-- TODO(b/178093014) Colors for privacy dialog. These should be changed to the new palette -->
     <color name="privacy_circle_camera">#1E8E3E</color> <!-- g600 -->
     <color name="privacy_circle_microphone_location">#E8710A</color> <!--o600 -->
+
+    <!-- Accessibility floating menu -->
+    <color name="accessibility_floating_menu_background">#CCFFFFFF</color> <!-- 80% -->
+    <color name="accessibility_floating_menu_stroke_dark">#26FFFFFF</color> <!-- 15% -->
 </resources>

packages/SystemUI/res/values/dimens.xml

@@ -1352,6 +1352,16 @@
     <dimen name="people_space_image_radius">20dp</dimen>
     <dimen name="people_space_widget_background_padding">6dp</dimen>
 
+    <!-- Accessibility floating menu -->
+    <dimen name="accessibility_floating_menu_elevation">5dp</dimen>
+    <dimen name="accessibility_floating_menu_stroke_width">1dp</dimen>
+    <dimen name="accessibility_floating_menu_stroke_inset">-2dp</dimen>
+    <dimen name="accessibility_floating_menu_margin">16dp</dimen>
+    <dimen name="accessibility_floating_menu_padding">6dp</dimen>
+    <dimen name="accessibility_floating_menu_width_height">36dp</dimen>
+    <dimen name="accessibility_floating_menu_single_radius">25dp</dimen>
+    <dimen name="accessibility_floating_menu_multiple_radius">20dp</dimen>
+
     <dimen name="rounded_slider_height">48dp</dimen>
     <!-- rounded_slider_height / 2 -->
     <dimen name="rounded_slider_corner_radius">24dp</dimen>

packages/SystemUI/src/com/android/systemui/accessibility/floatingmenu/AccessibilityFloatingMenu.java

@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2021 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.systemui.accessibility.floatingmenu;
+
+import static android.view.accessibility.AccessibilityManager.ACCESSIBILITY_BUTTON;
+
+import static com.android.internal.accessibility.dialog.AccessibilityTargetHelper.getTargets;
+
+import android.content.Context;
+import android.database.ContentObserver;
+import android.os.Handler;
+import android.os.Looper;
+import android.os.UserHandle;
+import android.provider.Settings;
+
+import com.android.internal.annotations.VisibleForTesting;
+
+/**
+ * Contains logic for an accessibility floating menu view.
+ */
+public class AccessibilityFloatingMenu implements IAccessibilityFloatingMenu {
+    private final Context mContext;
+    private final AccessibilityFloatingMenuView mMenuView;
+
+    private final ContentObserver mContentObserver =
+            new ContentObserver(new Handler(Looper.getMainLooper())) {
+                @Override
+                public void onChange(boolean selfChange) {
+                    mMenuView.onTargetsChanged(getTargets(mContext, ACCESSIBILITY_BUTTON));
+                }
+            };
+
+    public AccessibilityFloatingMenu(Context context) {
+        mContext = context;
+        mMenuView = new AccessibilityFloatingMenuView(context);
+    }
+
+    @VisibleForTesting
+    AccessibilityFloatingMenu(Context context, AccessibilityFloatingMenuView menuView) {
+        mContext = context;
+        mMenuView = menuView;
+    }
+
+    @Override
+    public boolean isShowing() {
+        return mMenuView.isShowing();
+    }
+
+    @Override
+    public void show() {
+        if (isShowing()) {
+            return;
+        }
+
+        mMenuView.onTargetsChanged(getTargets(mContext, ACCESSIBILITY_BUTTON));
+        mMenuView.show();
+
+        mContext.getContentResolver().registerContentObserver(
+                Settings.Secure.getUriFor(Settings.Secure.ACCESSIBILITY_BUTTON_TARGETS),
+                /* notifyForDescendants */ false, mContentObserver,
+                UserHandle.USER_CURRENT);
+    }
+
+    @Override
+    public void hide() {
+        if (!isShowing()) {
+            return;
+        }
+
+        mMenuView.hide();
+
+        mContext.getContentResolver().unregisterContentObserver(mContentObserver);
+    }
+}

packages/SystemUI/src/com/android/systemui/accessibility/floatingmenu/AccessibilityFloatingMenuView.java

@@ -0,0 +1,195 @@
+/*
+ * Copyright (C) 2021 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.systemui.accessibility.floatingmenu;
+
+import android.content.Context;
+import android.content.res.Configuration;
+import android.content.res.Resources;
+import android.graphics.PixelFormat;
+import android.graphics.drawable.Drawable;
+import android.graphics.drawable.GradientDrawable;
+import android.graphics.drawable.LayerDrawable;
+import android.util.DisplayMetrics;
+import android.view.Gravity;
+import android.view.ViewGroup;
+import android.view.WindowManager;
+import android.widget.FrameLayout;
+
+import androidx.annotation.DimenRes;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.android.internal.accessibility.dialog.AccessibilityTarget;
+import com.android.systemui.R;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Accessibility floating menu is used for the actions of accessibility features, it's also the
+ * action set.
+ *
+ * <p>The number of items would depend on strings key
+ * {@link android.provider.Settings.Secure#ACCESSIBILITY_BUTTON_TARGETS}.
+ */
+public class AccessibilityFloatingMenuView extends FrameLayout {
+    private static final float DEFAULT_LOCATION_Y_PERCENTAGE = 0.8f;
+    private static final int INDEX_MENU_ITEM = 0;
+    private boolean mIsShowing;
+    private RecyclerView mListView;
+    private final WindowManager.LayoutParams mLayoutParams;
+    private final WindowManager mWindowManager;
+    private final AccessibilityTargetAdapter mAdapter;
+    private final List<AccessibilityTarget> mTargets = new ArrayList<>();
+
+    public AccessibilityFloatingMenuView(Context context) {
+        super(context);
+
+        mWindowManager = context.getSystemService(WindowManager.class);
+        mLayoutParams = createDefaultLayoutParams();
+        mAdapter = new AccessibilityTargetAdapter(mTargets);
+
+        initListView(context, mAdapter);
+        updateStroke();
+    }
+
+    void show() {
+        if (isShowing()) {
+            return;
+        }
+
+        mIsShowing = true;
+        mWindowManager.addView(this, mLayoutParams);
+    }
+
+    void hide() {
+        if (!isShowing()) {
+            return;
+        }
+
+        mIsShowing = false;
+        mWindowManager.removeView(this);
+    }
+
+    boolean isShowing() {
+        return mIsShowing;
+    }
+
+    void onTargetsChanged(List<AccessibilityTarget> newTargets) {
+        mTargets.clear();
+        mTargets.addAll(newTargets);
+        mAdapter.notifyDataSetChanged();
+
+        final boolean hasMoreItems = mAdapter.getItemCount() > 1;
+        final int resId = hasMoreItems
+                ? R.dimen.accessibility_floating_menu_multiple_radius
+                : R.dimen.accessibility_floating_menu_single_radius;
+        setRadius(resId);
+    }
+
+    private void setRadius(@DimenRes int radiusResId) {
+        final float radius = getResources().getDimension(radiusResId);
+        final float[] radii = new float[]{radius, radius, 0.0f, 0.0f, 0.0f, 0.0f, radius, radius};
+        getMenuGradientDrawable().setCornerRadii(radii);
+    }
+
+    private void initListView(Context context, AccessibilityTargetAdapter adapter) {
+        final Resources res = context.getResources();
+        final int margin =
+                res.getDimensionPixelSize(R.dimen.accessibility_floating_menu_margin);
+        final int elevation =
+                res.getDimensionPixelSize(R.dimen.accessibility_floating_menu_elevation);
+        final Drawable listViewBackground =
+                context.getDrawable(R.drawable.accessibility_floating_menu_background);
+
+        mListView = new RecyclerView(context);
+        final LinearLayoutManager layoutManager = new LinearLayoutManager(context);
+        final LayoutParams layoutParams =
+                new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,
+                        ViewGroup.LayoutParams.WRAP_CONTENT);
+        layoutParams.setMarginsRelative(margin, margin, /* end= */ 0, margin);
+        mListView.setLayoutParams(layoutParams);
+        mListView.setElevation(elevation);
+        mListView.setBackground(listViewBackground);
+        mListView.setAdapter(adapter);
+        mListView.setLayoutManager(layoutManager);
+
+        addView(mListView);
+    }
+
+    private WindowManager.LayoutParams createDefaultLayoutParams() {
+        final WindowManager.LayoutParams params = new WindowManager.LayoutParams(
+                WindowManager.LayoutParams.WRAP_CONTENT,
+                WindowManager.LayoutParams.WRAP_CONTENT,
+                WindowManager.LayoutParams.TYPE_NAVIGATION_BAR_PANEL,
+                WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
+                PixelFormat.TRANSLUCENT);
+        final DisplayMetrics dm = getResources().getDisplayMetrics();
+        params.gravity = Gravity.START | Gravity.TOP;
+        params.x = dm.widthPixels;
+        params.y = (int) (dm.heightPixels * DEFAULT_LOCATION_Y_PERCENTAGE);
+
+        return params;
+    }
+
+    @Override
+    protected void onConfigurationChanged(Configuration newConfig) {
+        super.onConfigurationChanged(newConfig);
+
+        updateLocation();
+        updateColor();
+        updateStroke();
+    }
+
+    private LayerDrawable getMenuLayerDrawable() {
+        return (LayerDrawable) mListView.getBackground();
+    }
+
+    private GradientDrawable getMenuGradientDrawable() {
+        return (GradientDrawable) getMenuLayerDrawable().getDrawable(INDEX_MENU_ITEM);
+    }
+
+    private void updateLocation() {
+        final DisplayMetrics dm = getResources().getDisplayMetrics();
+        mLayoutParams.x = dm.widthPixels;
+        mLayoutParams.y = (int) (dm.heightPixels * DEFAULT_LOCATION_Y_PERCENTAGE);
+        mWindowManager.updateViewLayout(this, mLayoutParams);
+    }
+
+    private void updateColor() {
+        final int menuColorResId = R.color.accessibility_floating_menu_background;
+        getMenuGradientDrawable().setColor(getResources().getColor(menuColorResId));
+    }
+
+    private void updateStroke() {
+        final Resources res = getResources();
+        final boolean isNightMode =
+                (res.getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK)
+                        == Configuration.UI_MODE_NIGHT_YES;
+
+        final int inset =
+                res.getDimensionPixelSize(R.dimen.accessibility_floating_menu_stroke_inset);
+        final int insetRight = isNightMode ? inset : 0;
+        getMenuLayerDrawable().setLayerInset(INDEX_MENU_ITEM, 0, 0, insetRight, 0);
+
+        final int width =
+                res.getDimensionPixelSize(R.dimen.accessibility_floating_menu_stroke_width);
+        final int strokeWidth = isNightMode ? width : 0;
+        final int strokeColor = res.getColor(R.color.accessibility_floating_menu_stroke_dark);
+        getMenuGradientDrawable().setStroke(strokeWidth, strokeColor);
+    }
+}

packages/SystemUI/src/com/android/systemui/accessibility/floatingmenu/AccessibilityTargetAdapter.java

@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2020 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.systemui.accessibility.floatingmenu;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
+import androidx.recyclerview.widget.RecyclerView.Adapter;
+
+import com.android.internal.accessibility.dialog.AccessibilityTarget;
+import com.android.systemui.R;
+import com.android.systemui.accessibility.floatingmenu.AccessibilityTargetAdapter.ViewHolder;
+
+import java.util.List;
+
+/**
+ * An adapter which shows the set of accessibility targets that can be performed.
+ */
+public class AccessibilityTargetAdapter extends Adapter<ViewHolder> {
+
+    private final List<AccessibilityTarget> mTargets;
+    public AccessibilityTargetAdapter(List<AccessibilityTarget> targets) {
+        mTargets = targets;
+    }
+
+    @NonNull
+    @Override
+    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int i) {
+        final View root = LayoutInflater.from(parent.getContext()).inflate(
+                R.layout.accessibility_floating_menu_item, parent,
+                /* attachToRoot= */ false);
+
+        return new ViewHolder(root);
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
+        holder.mIconView.setBackground(mTargets.get(position).getIcon());
+
+        final boolean isFirstItem = (position == 0);
+        final boolean isLastItem = (position == (getItemCount() - 1));
+        final int padding = holder.itemView.getPaddingStart();
+        final int paddingTop = isFirstItem ? padding : 0;
+        final int paddingBottom = isLastItem ? padding : 0;
+        holder.itemView.setPaddingRelative(padding, paddingTop, padding, paddingBottom);
+        holder.itemView.setOnClickListener((v) -> mTargets.get(position).onSelected());
+        holder.mDivider.setVisibility(isLastItem ? View.GONE : View.VISIBLE);
+    }
+
+    @Override
+    public int getItemCount() {
+        return mTargets.size();
+    }
+
+    static class ViewHolder extends RecyclerView.ViewHolder {
+        final View mIconView;
+        final View mDivider;
+
+        ViewHolder(View itemView) {
+            super(itemView);
+            mIconView = itemView.findViewById(R.id.icon_view);
+            mDivider = itemView.findViewById(R.id.transparent_divider);
+        }
+    }
+}

packages/SystemUI/src/com/android/systemui/accessibility/floatingmenu/IAccessibilityFloatingMenu.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2021 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.systemui.accessibility.floatingmenu;
+
+/**
+ * Interface for managing the accessibility targets menu component.
+ */
+public interface IAccessibilityFloatingMenu {
+
+    /**
+     * Checks if the menu was shown.
+     */
+    boolean isShowing();
+
+    /**
+     * Shows the accessibility targets menu.
+     */
+    void show();
+
+    /**
+     * Hides the accessibility targets menu.
+     */
+    void hide();
+}

packages/SystemUI/tests/src/com/android/systemui/accessibility/floatingmenu/AccessibilityFloatingMenuTest.java

@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2021 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.systemui.accessibility.floatingmenu;
+
+import static com.android.internal.accessibility.AccessibilityShortcutController.MAGNIFICATION_CONTROLLER_NAME;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.Mockito.doReturn;
+
+import android.content.Context;
+import android.testing.AndroidTestingRunner;
+import android.testing.TestableLooper;
+import android.view.accessibility.AccessibilityManager;
+
+import androidx.test.filters.SmallTest;
+
+import com.android.systemui.SysuiTestCase;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/** Tests for {@link AccessibilityFloatingMenu}. */
+@SmallTest
+@RunWith(AndroidTestingRunner.class)
+@TestableLooper.RunWithLooper
+public class AccessibilityFloatingMenuTest extends SysuiTestCase {
+
+    @Mock
+    private AccessibilityManager mAccessibilityManager;
+
+    private AccessibilityFloatingMenuView mMenuView;
+    private AccessibilityFloatingMenu mMenu;
+
+    @Before
+    public void initMenu() {
+        MockitoAnnotations.initMocks(this);
+
+        final List<String> assignedTargets = new ArrayList<>();
+        mContext.addMockSystemService(Context.ACCESSIBILITY_SERVICE, mAccessibilityManager);
+        assignedTargets.add(MAGNIFICATION_CONTROLLER_NAME);
+        doReturn(assignedTargets).when(mAccessibilityManager).getAccessibilityShortcutTargets(
+                anyInt());
+
+        mMenuView = new AccessibilityFloatingMenuView(mContext);
+        mMenu = new AccessibilityFloatingMenu(mContext, mMenuView);
+    }
+
+    @Test
+    public void showMenuView_success() {
+        mMenu.show();
+
+        assertThat(mMenuView.isShowing()).isTrue();
+    }
+
+    @Test
+    public void hideMenuView_success() {
+        mMenu.show();
+        mMenu.hide();
+
+        assertThat(mMenuView.isShowing()).isFalse();
+    }
+
+    @After
+    public void tearDown() {
+        mMenu.hide();
+    }
+}

packages/SystemUI/tests/src/com/android/systemui/accessibility/floatingmenu/AccessibilityFloatingMenuViewTest.java

@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2021 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.systemui.accessibility.floatingmenu;
+
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.doAnswer;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+
+import android.content.Context;
+import android.graphics.drawable.GradientDrawable;
+import android.graphics.drawable.LayerDrawable;
+import android.testing.AndroidTestingRunner;
+import android.view.View;
+import android.view.WindowManager;
+
+import androidx.test.filters.SmallTest;
+
+import com.android.internal.accessibility.dialog.AccessibilityTarget;
+import com.android.systemui.R;
+import com.android.systemui.SysuiTestCase;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/** Tests for {@link AccessibilityFloatingMenuView}. */
+@SmallTest
+@RunWith(AndroidTestingRunner.class)
+public class AccessibilityFloatingMenuViewTest extends SysuiTestCase {
+    private AccessibilityFloatingMenuView mMenuView;
+
+    @Mock
+    private WindowManager mWindowManager;
+
+    private final List<AccessibilityTarget> mTargets = new ArrayList<>();
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+
+        final WindowManager wm = mContext.getSystemService(WindowManager.class);
+        doAnswer(invocation -> wm.getMaximumWindowMetrics()).when(
+                mWindowManager).getMaximumWindowMetrics();
+        mContext.addMockSystemService(Context.WINDOW_SERVICE, mWindowManager);
+
+        mTargets.add(mock(AccessibilityTarget.class));
+        mMenuView = new AccessibilityFloatingMenuView(mContext);
+    }
+
+    @Test
+    public void initListView_success() {
+        assertThat(mMenuView.getChildCount()).isEqualTo(1);
+    }
+
+    @Test
+    public void showMenuView_success() {
+        mMenuView.show();
+
+        assertThat(mMenuView.isShowing()).isTrue();
+        verify(mWindowManager).addView(eq(mMenuView), any(WindowManager.LayoutParams.class));
+    }
+
+    @Test
+    public void showMenuView_showTwice_addViewOnce() {
+        mMenuView.show();
+        mMenuView.show();
+
+        assertThat(mMenuView.isShowing()).isTrue();
+        verify(mWindowManager, times(1)).addView(eq(mMenuView),
+                any(WindowManager.LayoutParams.class));
+    }
+
+    @Test
+    public void hideMenuView_success() {
+        mMenuView.show();
+        mMenuView.hide();
+
+        assertThat(mMenuView.isShowing()).isFalse();
+        verify(mWindowManager).removeView(eq(mMenuView));
+    }
+
+    @Test
+    public void hideMenuView_hideTwice_removeViewOnce() {
+        mMenuView.show();
+        mMenuView.hide();
+        mMenuView.hide();
+
+        assertThat(mMenuView.isShowing()).isFalse();
+        verify(mWindowManager, times(1)).removeView(eq(mMenuView));
+    }
+
+    @Test
+    public void updateListViewRadius_singleTarget_matchResult() {
+        final float radius =
+                getContext().getResources().getDimension(
+                        R.dimen.accessibility_floating_menu_single_radius);
+        final float[] expectedRadii =
+                new float[] {radius, radius, 0.0f, 0.0f, 0.0f, 0.0f, radius, radius};
+
+        mMenuView.onTargetsChanged(mTargets);
+        final View view = mMenuView.getChildAt(0);
+        final LayerDrawable layerDrawable = (LayerDrawable) view.getBackground();
+        final GradientDrawable gradientDrawable =
+                (GradientDrawable) layerDrawable.getDrawable(0);
+        final float[] actualRadii = gradientDrawable.getCornerRadii();
+
+        assertThat(actualRadii).isEqualTo(expectedRadii);
+    }
+}