Files
app_Settings/src/com/android/settings/display/ScreenResolutionController.java
Amy Hsu b7b6ed91cf Add ScreenResolutionController to Settings app
Settings for resolution switch

Bug: b/199559703
Test: Check resolution switch UI in Settings app
      atest SettingsUnitTests:ScreenResolutionControllerTest
      atest SettingsUnitTests:ScreenResolutionFragmentTest

Change-Id: I46d3be3b82ca512b8672efaa489df2cdaab26d6d
2022-03-03 01:56:00 +08:00

88 lines
2.7 KiB
Java

/*
* Copyright (C) 2022 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.display;
import android.content.Context;
import android.hardware.display.DisplayManager;
import android.view.Display;
import androidx.annotation.VisibleForTesting;
import com.android.settings.R;
import com.android.settings.core.BasePreferenceController;
/** Controller that switch the screen resolution. */
public class ScreenResolutionController extends BasePreferenceController {
static final int FHD_WIDTH = 1080;
static final int QHD_WIDTH = 1440;
private Display mDisplay;
public ScreenResolutionController(Context context, String key) {
super(context, key);
mDisplay =
mContext.getSystemService(DisplayManager.class).getDisplay(Display.DEFAULT_DISPLAY);
}
/** Check if the width is supported by the display. */
private boolean isSupportedMode(int width) {
for (Display.Mode mode : getSupportedModes()) {
if (mode.getPhysicalWidth() == width) return true;
}
return false;
}
/** Return true if the device contains two (or more) resolutions. */
protected boolean checkSupportedResolutions() {
return isSupportedMode(FHD_WIDTH) && isSupportedMode(QHD_WIDTH);
}
@Override
public int getAvailabilityStatus() {
return (checkSupportedResolutions()) ? AVAILABLE : UNSUPPORTED_ON_DEVICE;
}
@Override
public CharSequence getSummary() {
String summary = null;
switch (getDisplayWidth()) {
case FHD_WIDTH:
summary = mContext.getString(R.string.screen_resolution_summary_high);
break;
case QHD_WIDTH:
summary = mContext.getString(R.string.screen_resolution_summary_highest);
break;
default:
summary = mContext.getString(R.string.screen_resolution_title);
}
return summary;
}
@VisibleForTesting
public int getDisplayWidth() {
return mDisplay.getMode().getPhysicalWidth();
}
@VisibleForTesting
public Display.Mode[] getSupportedModes() {
return mDisplay.getSupportedModes();
}
}