diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 57c577d90e5..d7c1baa9581 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -2471,6 +2471,22 @@
android:value="true" />
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/res/drawable-night/ic_contrast_medium.xml b/res/drawable-night/ic_contrast_medium.xml
new file mode 100644
index 00000000000..dc8ddaeebb7
--- /dev/null
+++ b/res/drawable-night/ic_contrast_medium.xml
@@ -0,0 +1,28 @@
+
+
+
+
+
diff --git a/res/drawable-night/ic_contrast_standard.xml b/res/drawable-night/ic_contrast_standard.xml
new file mode 100644
index 00000000000..cdf61cf33d8
--- /dev/null
+++ b/res/drawable-night/ic_contrast_standard.xml
@@ -0,0 +1,28 @@
+
+
+
+
+
diff --git a/res/drawable/accessibility_contrast_button_background.xml b/res/drawable/accessibility_contrast_button_background.xml
new file mode 100644
index 00000000000..281fcef246a
--- /dev/null
+++ b/res/drawable/accessibility_contrast_button_background.xml
@@ -0,0 +1,64 @@
+
+
+
+
+ -
+
+
-
+
+
+
+
+
+
+ -
+
+
+
+
+
+
+
+ -
+
+
-
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/res/drawable/color_contrast_preview_background.xml b/res/drawable/color_contrast_preview_background.xml
new file mode 100644
index 00000000000..51d0ade2d73
--- /dev/null
+++ b/res/drawable/color_contrast_preview_background.xml
@@ -0,0 +1,22 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/res/drawable/color_contrast_preview_bottom_appbar_background.xml b/res/drawable/color_contrast_preview_bottom_appbar_background.xml
new file mode 100644
index 00000000000..f3392fb01b5
--- /dev/null
+++ b/res/drawable/color_contrast_preview_bottom_appbar_background.xml
@@ -0,0 +1,26 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/res/drawable/color_contrast_preview_button_background.xml b/res/drawable/color_contrast_preview_button_background.xml
new file mode 100644
index 00000000000..8b920874350
--- /dev/null
+++ b/res/drawable/color_contrast_preview_button_background.xml
@@ -0,0 +1,22 @@
+
+
+
+
+
+
diff --git a/res/drawable/color_contrast_preview_dialog_background.xml b/res/drawable/color_contrast_preview_dialog_background.xml
new file mode 100644
index 00000000000..f60a271ec3d
--- /dev/null
+++ b/res/drawable/color_contrast_preview_dialog_background.xml
@@ -0,0 +1,22 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/res/drawable/color_contrast_preview_icon_edit_background.xml b/res/drawable/color_contrast_preview_icon_edit_background.xml
new file mode 100644
index 00000000000..14c5f3c9340
--- /dev/null
+++ b/res/drawable/color_contrast_preview_icon_edit_background.xml
@@ -0,0 +1,22 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/res/drawable/color_contrast_preview_icon_group_background.xml b/res/drawable/color_contrast_preview_icon_group_background.xml
new file mode 100644
index 00000000000..b8554c19229
--- /dev/null
+++ b/res/drawable/color_contrast_preview_icon_group_background.xml
@@ -0,0 +1,22 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/res/drawable/color_contrast_preview_icon_inbox_background.xml b/res/drawable/color_contrast_preview_icon_inbox_background.xml
new file mode 100644
index 00000000000..45d82852456
--- /dev/null
+++ b/res/drawable/color_contrast_preview_icon_inbox_background.xml
@@ -0,0 +1,23 @@
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/res/drawable/color_contrast_preview_icon_star_background.xml b/res/drawable/color_contrast_preview_icon_star_background.xml
new file mode 100644
index 00000000000..335ee886f7f
--- /dev/null
+++ b/res/drawable/color_contrast_preview_icon_star_background.xml
@@ -0,0 +1,22 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/res/drawable/color_contrast_preview_tag_background.xml b/res/drawable/color_contrast_preview_tag_background.xml
new file mode 100644
index 00000000000..a7b051aa280
--- /dev/null
+++ b/res/drawable/color_contrast_preview_tag_background.xml
@@ -0,0 +1,22 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/res/drawable/ic_article_24dp.xml b/res/drawable/ic_article_24dp.xml
new file mode 100644
index 00000000000..0b38daaf643
--- /dev/null
+++ b/res/drawable/ic_article_24dp.xml
@@ -0,0 +1,27 @@
+
+
+
+
diff --git a/res/drawable/ic_article_filled_24dp.xml b/res/drawable/ic_article_filled_24dp.xml
new file mode 100644
index 00000000000..e22d151beb7
--- /dev/null
+++ b/res/drawable/ic_article_filled_24dp.xml
@@ -0,0 +1,26 @@
+
+
+
+
diff --git a/res/drawable/ic_chat_bubble_24dp.xml b/res/drawable/ic_chat_bubble_24dp.xml
new file mode 100644
index 00000000000..c7ad6bf28a1
--- /dev/null
+++ b/res/drawable/ic_chat_bubble_24dp.xml
@@ -0,0 +1,26 @@
+
+
+
+
diff --git a/res/drawable/ic_color_contrast.xml b/res/drawable/ic_color_contrast.xml
new file mode 100644
index 00000000000..9d56ada2f0c
--- /dev/null
+++ b/res/drawable/ic_color_contrast.xml
@@ -0,0 +1,35 @@
+
+
+
+ -
+
+
+ -
+
+
+
+
+
\ No newline at end of file
diff --git a/res/drawable/ic_contrast_high.xml b/res/drawable/ic_contrast_high.xml
new file mode 100644
index 00000000000..363f2a85ce5
--- /dev/null
+++ b/res/drawable/ic_contrast_high.xml
@@ -0,0 +1,28 @@
+
+
+
+
+
diff --git a/res/drawable/ic_contrast_medium.xml b/res/drawable/ic_contrast_medium.xml
new file mode 100644
index 00000000000..04e48d013ab
--- /dev/null
+++ b/res/drawable/ic_contrast_medium.xml
@@ -0,0 +1,28 @@
+
+
+
+
+
diff --git a/res/drawable/ic_contrast_standard.xml b/res/drawable/ic_contrast_standard.xml
new file mode 100644
index 00000000000..9f0c5af62de
--- /dev/null
+++ b/res/drawable/ic_contrast_standard.xml
@@ -0,0 +1,28 @@
+
+
+
+
+
\ No newline at end of file
diff --git a/res/drawable/ic_edit_24dp.xml b/res/drawable/ic_edit_24dp.xml
new file mode 100644
index 00000000000..c9dbfc33343
--- /dev/null
+++ b/res/drawable/ic_edit_24dp.xml
@@ -0,0 +1,26 @@
+
+
+
+
diff --git a/res/drawable/ic_group_24dp.xml b/res/drawable/ic_group_24dp.xml
new file mode 100644
index 00000000000..92815c2cc2f
--- /dev/null
+++ b/res/drawable/ic_group_24dp.xml
@@ -0,0 +1,26 @@
+
+
+
+
diff --git a/res/drawable/ic_inbox_24dp.xml b/res/drawable/ic_inbox_24dp.xml
new file mode 100644
index 00000000000..7800ea145ef
--- /dev/null
+++ b/res/drawable/ic_inbox_24dp.xml
@@ -0,0 +1,26 @@
+
+
+
+
diff --git a/res/drawable/ic_star_24dp.xml b/res/drawable/ic_star_24dp.xml
new file mode 100644
index 00000000000..38535e6c5fd
--- /dev/null
+++ b/res/drawable/ic_star_24dp.xml
@@ -0,0 +1,26 @@
+
+
+
+
diff --git a/res/layout/accessibility_color_contrast_preview.xml b/res/layout/accessibility_color_contrast_preview.xml
new file mode 100644
index 00000000000..2646709dbf4
--- /dev/null
+++ b/res/layout/accessibility_color_contrast_preview.xml
@@ -0,0 +1,251 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/res/layout/accessibility_color_contrast_selector.xml b/res/layout/accessibility_color_contrast_selector.xml
new file mode 100644
index 00000000000..f7ba28b5b32
--- /dev/null
+++ b/res/layout/accessibility_color_contrast_selector.xml
@@ -0,0 +1,147 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/res/values/dimens.xml b/res/values/dimens.xml
index 4b96486be7b..bdf329c03d4 100755
--- a/res/values/dimens.xml
+++ b/res/values/dimens.xml
@@ -477,4 +477,13 @@
80dp
24dp
+
+
+ 90dp
+ 82dp
+ 20dp
+ 2dp
+ 14sp
+ 4dp
+ 16dp
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 5873b1abe8c..32a3e03d639 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -4599,6 +4599,28 @@
Display
Color and motion
+
+ Color contrast
+
+ Higher contrast makes text, buttons, and icons stand out more. Choose the contrast that looks best to you.
+
+ Some apps may not support all color and text contrast settings
+
+ Adjust how colors and text look against your screen\'s background color
+
+ Preview
+
+ Helen, Adam
+
+ 2 days ago
+
+ Follow up?
+
+ Business trip report
+
+ For further assistance, please reach out to \nmyself or Helen. This report will be
+
+ Client Expenses
Turn screen darker
@@ -12828,6 +12850,8 @@
Contrast
Standard
+
+ Default
Medium
diff --git a/res/xml/accessibility_color_and_motion.xml b/res/xml/accessibility_color_and_motion.xml
index a500b72d958..35222347a29 100644
--- a/res/xml/accessibility_color_and_motion.xml
+++ b/res/xml/accessibility_color_and_motion.xml
@@ -21,6 +21,16 @@
android:persistent="false"
android:title="@string/accessibility_color_and_motion_title">
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/src/com/android/settings/Settings.java b/src/com/android/settings/Settings.java
index 63ce3310371..92e3efd5003 100644
--- a/src/com/android/settings/Settings.java
+++ b/src/com/android/settings/Settings.java
@@ -117,6 +117,8 @@ public class Settings extends SettingsActivity {
public static class TextReadingSettingsActivity extends SettingsActivity { /* empty */ }
/** Activity for text color and motion settings. */
public static class ColorAndMotionActivity extends SettingsActivity { /* empty */ }
+ /** Activity for color contrast settings. */
+ public static class ColorContrastActivity extends SettingsActivity { /* empty */ }
/** Activity for the security dashboard. */
public static class SecurityDashboardActivity extends SettingsActivity {
diff --git a/src/com/android/settings/accessibility/ColorContrastFragment.java b/src/com/android/settings/accessibility/ColorContrastFragment.java
new file mode 100644
index 00000000000..a5726579b38
--- /dev/null
+++ b/src/com/android/settings/accessibility/ColorContrastFragment.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2024 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.settings.accessibility;
+
+import com.android.settings.R;
+import com.android.settings.dashboard.DashboardFragment;
+import com.android.settings.search.BaseSearchIndexProvider;
+import com.android.settingslib.search.SearchIndexable;
+
+/** Accessibility settings for color contrast. */
+@SearchIndexable(forTarget = SearchIndexable.ALL & ~SearchIndexable.ARC)
+public class ColorContrastFragment extends DashboardFragment {
+
+ private static final String TAG = "ColorContrastFragment";
+
+
+ @Override
+ protected int getPreferenceScreenResId() {
+ return R.xml.accessibility_color_contrast;
+ }
+
+ @Override
+ protected String getLogTag() {
+ return TAG;
+ }
+
+ @Override
+ public int getMetricsCategory() {
+ // TODO(b/326539398): Add metrics tracking for color contrast.
+ return 0;
+ }
+
+ public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+ new BaseSearchIndexProvider(R.xml.accessibility_color_contrast);
+}
diff --git a/src/com/android/settings/accessibility/ContrastPreferenceController.java b/src/com/android/settings/accessibility/ContrastPreferenceController.java
new file mode 100644
index 00000000000..4e9a9ec77e5
--- /dev/null
+++ b/src/com/android/settings/accessibility/ContrastPreferenceController.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2024 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.settings.accessibility;
+
+import android.content.Context;
+
+import androidx.annotation.NonNull;
+
+import com.android.settings.core.BasePreferenceController;
+
+/**
+ * Controller for {@link ColorContrastFragment}.
+ */
+public class ContrastPreferenceController extends BasePreferenceController {
+
+ public ContrastPreferenceController(@NonNull Context context, @NonNull String preferenceKey) {
+ super(context, preferenceKey);
+ }
+
+ @Override
+ public int getAvailabilityStatus() {
+ return Flags.enableColorContrastControl() ? AVAILABLE : UNSUPPORTED_ON_DEVICE;
+ }
+}
diff --git a/src/com/android/settings/accessibility/ContrastSelectorPreferenceController.java b/src/com/android/settings/accessibility/ContrastSelectorPreferenceController.java
new file mode 100644
index 00000000000..b99680fa0b6
--- /dev/null
+++ b/src/com/android/settings/accessibility/ContrastSelectorPreferenceController.java
@@ -0,0 +1,122 @@
+/*
+ * Copyright (C) 2024 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.settings.accessibility;
+
+import static android.app.UiModeManager.ContrastUtils.CONTRAST_LEVEL_HIGH;
+import static android.app.UiModeManager.ContrastUtils.CONTRAST_LEVEL_MEDIUM;
+import static android.app.UiModeManager.ContrastUtils.CONTRAST_LEVEL_STANDARD;
+import static android.app.UiModeManager.ContrastUtils.fromContrastLevel;
+import static android.app.UiModeManager.ContrastUtils.toContrastLevel;
+
+import android.app.UiModeManager;
+import android.content.Context;
+import android.provider.Settings;
+import android.view.View;
+import android.widget.FrameLayout;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.preference.PreferenceScreen;
+
+import com.android.settings.R;
+import com.android.settings.core.BasePreferenceController;
+import com.android.settingslib.core.lifecycle.LifecycleObserver;
+import com.android.settingslib.core.lifecycle.events.OnStart;
+import com.android.settingslib.core.lifecycle.events.OnStop;
+import com.android.settingslib.widget.LayoutPreference;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.Executor;
+
+/**
+ * Controller for contrast selector.
+ */
+public class ContrastSelectorPreferenceController extends BasePreferenceController
+ implements LifecycleObserver, OnStart, OnStop, UiModeManager.ContrastChangeListener {
+
+ private static final String KEY_COLOR_CONTRAST_SELECTOR = "color_contrast_selector";
+
+ private final Executor mMainExecutor;
+ private final UiModeManager mUiModeManager;
+ private Map mContrastButtons = new HashMap<>();
+
+ public ContrastSelectorPreferenceController(@NonNull Context context,
+ @NonNull String preferenceKey) {
+ super(context, preferenceKey);
+
+ mMainExecutor = mContext.getMainExecutor();
+ mUiModeManager = mContext.getSystemService(UiModeManager.class);
+ }
+
+ @Override
+ public void displayPreference(@NonNull PreferenceScreen screen) {
+ super.displayPreference(screen);
+
+ final LayoutPreference mLayoutPreference =
+ screen.findPreference(KEY_COLOR_CONTRAST_SELECTOR);
+
+ mContrastButtons = Map.ofEntries(
+ Map.entry(CONTRAST_LEVEL_STANDARD,
+ mLayoutPreference.findViewById(R.id.contrast_button_default)),
+ Map.entry(CONTRAST_LEVEL_MEDIUM,
+ mLayoutPreference.findViewById(R.id.contrast_button_medium)),
+ Map.entry(CONTRAST_LEVEL_HIGH,
+ mLayoutPreference.findViewById(R.id.contrast_button_high))
+ );
+
+ mContrastButtons.forEach((contrastLevel, contrastButton) -> {
+ contrastButton.setOnClickListener(new View.OnClickListener() {
+ @Override
+ public void onClick(@Nullable View v) {
+ Settings.Secure.putFloat(mContext.getContentResolver(),
+ Settings.Secure.CONTRAST_LEVEL,
+ fromContrastLevel(contrastLevel));
+ }
+ });
+ });
+
+ highlightContrast(toContrastLevel(mUiModeManager.getContrast()));
+ }
+
+ @Override
+ public int getAvailabilityStatus() {
+ // The main preferences screen is feature guarded, so this always returns AVAILABLE.
+ return AVAILABLE;
+ }
+
+ @Override
+ public void onStart() {
+ mUiModeManager.addContrastChangeListener(mMainExecutor, this);
+ }
+
+ @Override
+ public void onStop() {
+ mUiModeManager.removeContrastChangeListener(this);
+ }
+
+ @Override
+ public void onContrastChanged(float contrast) {
+ highlightContrast(toContrastLevel(contrast));
+ }
+
+ private void highlightContrast(int contrast) {
+ mContrastButtons.forEach((level, button) -> {
+ button.setSelected(level == contrast);
+ });
+ }
+}
diff --git a/src/com/android/settings/core/gateway/SettingsGateway.java b/src/com/android/settings/core/gateway/SettingsGateway.java
index e3131f7753f..1b6c231f966 100644
--- a/src/com/android/settings/core/gateway/SettingsGateway.java
+++ b/src/com/android/settings/core/gateway/SettingsGateway.java
@@ -29,6 +29,7 @@ import com.android.settings.accessibility.AccessibilitySettings;
import com.android.settings.accessibility.AccessibilitySettingsForSetupWizard;
import com.android.settings.accessibility.CaptioningPropertiesFragment;
import com.android.settings.accessibility.ColorAndMotionFragment;
+import com.android.settings.accessibility.ColorContrastFragment;
import com.android.settings.accessibility.TextReadingPreferenceFragment;
import com.android.settings.accessibility.TextReadingPreferenceFragmentForSetupWizard;
import com.android.settings.accessibility.ToggleColorInversionPreferenceFragment;
@@ -381,6 +382,7 @@ public class SettingsGateway {
TurnScreenOnDetails.class.getName(),
NfcAndPaymentFragment.class.getName(),
ColorAndMotionFragment.class.getName(),
+ ColorContrastFragment.class.getName(),
LongBackgroundTasksDetails.class.getName(),
RegionalPreferencesEntriesFragment.class.getName(),
BatteryInfoFragment.class.getName(),
diff --git a/tests/robotests/src/com/android/settings/accessibility/ColorContrastFragmentTest.java b/tests/robotests/src/com/android/settings/accessibility/ColorContrastFragmentTest.java
new file mode 100644
index 00000000000..f90374508e1
--- /dev/null
+++ b/tests/robotests/src/com/android/settings/accessibility/ColorContrastFragmentTest.java
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2024 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.settings.accessibility;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.when;
+
+import android.app.UiModeManager;
+import android.content.Context;
+
+import androidx.test.core.app.ApplicationProvider;
+
+import com.android.settings.R;
+import com.android.settings.testutils.XmlTestUtils;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RobolectricTestRunner;
+
+import java.util.List;
+
+/** Tests for {@link ColorContrastFragment}. */
+@RunWith(RobolectricTestRunner.class)
+public class ColorContrastFragmentTest {
+
+ private ColorContrastFragment mFragment;
+ private Context mContext;
+ @Mock
+ private UiModeManager mUiService;
+
+ @Before
+ public void setUp() {
+ MockitoAnnotations.initMocks(this);
+
+ mFragment = spy(new ColorContrastFragment());
+ mContext = spy(ApplicationProvider.getApplicationContext());
+ when(mFragment.getContext()).thenReturn(mContext);
+ when(mContext.getSystemService(UiModeManager.class)).thenReturn(mUiService);
+ }
+
+ @Test
+ public void getMetricsCategory_returnsCorrectCategory() {
+ assertThat(mFragment.getMetricsCategory()).isEqualTo(0);
+ }
+
+ @Test
+ public void getPreferenceScreenResId_returnsCorrectXml() {
+ assertThat(mFragment.getPreferenceScreenResId()).isEqualTo(
+ R.xml.accessibility_color_contrast);
+ }
+
+ @Test
+ public void getLogTag_returnsCorrectTag() {
+ assertThat(mFragment.getLogTag()).isEqualTo("ColorContrastFragment");
+ }
+
+ @Test
+ public void getNonIndexableKeys_existInXmlLayout() {
+ final List niks =
+ ShortcutsSettingsFragment.SEARCH_INDEX_DATA_PROVIDER
+ .getNonIndexableKeys(mContext);
+ final List keys =
+ XmlTestUtils.getKeysFromPreferenceXml(mContext,
+ R.xml.accessibility_color_contrast);
+ assertThat(keys).containsAtLeastElementsIn(niks);
+ }
+}
diff --git a/tests/robotests/src/com/android/settings/accessibility/ContrastPreferenceControllerTest.java b/tests/robotests/src/com/android/settings/accessibility/ContrastPreferenceControllerTest.java
new file mode 100644
index 00000000000..219f3d971b1
--- /dev/null
+++ b/tests/robotests/src/com/android/settings/accessibility/ContrastPreferenceControllerTest.java
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2024 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.settings.accessibility;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import android.content.Context;
+import android.platform.test.flag.junit.CheckFlagsRule;
+import android.platform.test.flag.junit.DeviceFlagsValueProvider;
+import android.platform.test.flag.junit.SetFlagsRule;
+
+import androidx.test.core.app.ApplicationProvider;
+
+import com.android.settings.core.BasePreferenceController;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+
+/** Tests for {@link ContrastPreferenceController}. */
+@RunWith(RobolectricTestRunner.class)
+public class ContrastPreferenceControllerTest {
+
+ @Rule
+ public final CheckFlagsRule mCheckFlagsRule = DeviceFlagsValueProvider.createCheckFlagsRule();
+ @Rule public final SetFlagsRule mSetFlagsRule = new SetFlagsRule();
+
+ private static final String PREFERENCE_KEY = "preference_key";
+
+ private Context mContext;
+ private ContrastPreferenceController mController;
+
+ @Before
+ public void setUp() {
+ mContext = ApplicationProvider.getApplicationContext();
+ mController = new ContrastPreferenceController(mContext, PREFERENCE_KEY);
+ }
+
+ @Test
+ public void getAvailabilityStatus_flagsEnabled_shouldReturnAvailable() {
+ mSetFlagsRule.enableFlags(Flags.FLAG_ENABLE_COLOR_CONTRAST_CONTROL);
+
+ assertThat(mController.getAvailabilityStatus())
+ .isEqualTo(BasePreferenceController.AVAILABLE);
+ }
+
+ @Test
+ public void getAvailabilityStatus_flagsDisabled_shouldReturnUnsupported() {
+ mSetFlagsRule.disableFlags(Flags.FLAG_ENABLE_COLOR_CONTRAST_CONTROL);
+
+ assertThat(mController.getAvailabilityStatus())
+ .isEqualTo(BasePreferenceController.UNSUPPORTED_ON_DEVICE);
+ }
+}
diff --git a/tests/robotests/src/com/android/settings/accessibility/ContrastSelectorPreferenceControllerTest.java b/tests/robotests/src/com/android/settings/accessibility/ContrastSelectorPreferenceControllerTest.java
new file mode 100644
index 00000000000..38d6e801538
--- /dev/null
+++ b/tests/robotests/src/com/android/settings/accessibility/ContrastSelectorPreferenceControllerTest.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2024 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.settings.accessibility;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import android.app.UiModeManager;
+import android.content.Context;
+import android.widget.FrameLayout;
+
+import androidx.preference.PreferenceScreen;
+import androidx.test.core.app.ApplicationProvider;
+
+import com.android.settings.core.BasePreferenceController;
+import com.android.settingslib.widget.LayoutPreference;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RobolectricTestRunner;
+
+import java.util.concurrent.Executor;
+
+/** Tests for {@link ContrastSelectorPreferenceController}. */
+@RunWith(RobolectricTestRunner.class)
+public class ContrastSelectorPreferenceControllerTest {
+
+ private static final String PREFERENCE_KEY = "color_contrast_selector";
+
+ @Mock
+ private UiModeManager mUiService;
+ @Mock
+ private Executor mExecutor;
+ @Mock
+ private PreferenceScreen mScreen;
+ @Mock
+ private FrameLayout mFrameLayout;
+ @Mock
+ private LayoutPreference mLayoutPreference;
+ private Context mContext;
+ private ContrastSelectorPreferenceController mController;
+
+ @Before
+ public void setUp() {
+ MockitoAnnotations.initMocks(this);
+
+ mContext = spy(ApplicationProvider.getApplicationContext());
+ when(mContext.getMainExecutor()).thenReturn(mExecutor);
+ when(mContext.getSystemService(UiModeManager.class)).thenReturn(mUiService);
+ mController = new ContrastSelectorPreferenceController(mContext, PREFERENCE_KEY);
+ when(mScreen.findPreference(PREFERENCE_KEY)).thenReturn(mLayoutPreference);
+ when(mLayoutPreference.findViewById(anyInt())).thenReturn(mFrameLayout);
+ }
+
+ @Test
+ public void getAvailabilityStatus_byDefault_shouldReturnAvailable() {
+ assertThat(mController.getAvailabilityStatus())
+ .isEqualTo(BasePreferenceController.AVAILABLE);
+ }
+
+ @Test
+ public void onStart_shouldAddContrastListener() {
+ mController.displayPreference(mScreen);
+ mController.onStart();
+
+ verify(mUiService).addContrastChangeListener(mExecutor, mController);
+ }
+
+ @Test
+ public void onStop_shouldRemoveContrastListener() {
+ mController.displayPreference(mScreen);
+ mController.onStart();
+ mController.onStop();
+
+ verify(mUiService).removeContrastChangeListener(mController);
+ }
+
+ @Test
+ public void displayPreference_shouldAddClickListener() {
+ mController.displayPreference(mScreen);
+
+ verify(mFrameLayout, times(3)).setOnClickListener(any());
+ }
+
+ @Test
+ public void onContrastChanged_buttonShouldBeSelected() {
+ mController.displayPreference(mScreen);
+ mController.onContrastChanged(1);
+
+ verify(mFrameLayout, times(2)).setSelected(true);
+ }
+}