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/*
* Copyright (C) 2010 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 android.app;
import android.annotation.IntDef;
import android.annotation.IntRange;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.annotation.RequiresPermission;
import android.annotation.SystemApi;
import android.annotation.SystemService;
import android.annotation.TestApi;
import android.compat.annotation.UnsupportedAppUsage;
import android.content.Context;
import android.content.res.Configuration;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.ServiceManager.ServiceNotFoundException;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.time.LocalTime;
/**
* This class provides access to the system uimode services. These services
* allow applications to control UI modes of the device.
* It provides functionality to disable the car mode and it gives access to the
* night mode settings.
*
* <p>These facilities are built on top of the underlying
* {@link android.content.Intent#ACTION_DOCK_EVENT} broadcasts that are sent when the user
* physical places the device into and out of a dock. When that happens,
* the UiModeManager switches the system {@link android.content.res.Configuration}
* to the appropriate UI mode, sends broadcasts about the mode switch, and
* starts the corresponding mode activity if appropriate. See the
* broadcasts {@link #ACTION_ENTER_CAR_MODE} and
* {@link #ACTION_ENTER_DESK_MODE} for more information.
*
* <p>In addition, the user may manually switch the system to car mode without
* physically being in a dock. While in car mode -- whether by manual action
* from the user or being physically placed in a dock -- a notification is
* displayed allowing the user to exit dock mode. Thus the dock mode
* represented here may be different than the current state of the underlying
* dock event broadcast.
*/
@SystemService(Context.UI_MODE_SERVICE)
public class UiModeManager {
private static final String TAG = "UiModeManager";
/**
* Broadcast sent when the device's UI has switched to car mode, either
* by being placed in a car dock or explicit action of the user. After
* sending the broadcast, the system will start the intent
* {@link android.content.Intent#ACTION_MAIN} with category
* {@link android.content.Intent#CATEGORY_CAR_DOCK}
* to display the car UI, which typically what an application would
* implement to provide their own interface. However, applications can
* also monitor this Intent in order to be informed of mode changes or
* prevent the normal car UI from being displayed by setting the result
* of the broadcast to {@link Activity#RESULT_CANCELED}.
* <p>
* This intent is broadcast when {@link #getCurrentModeType()} transitions to
* {@link Configuration#UI_MODE_TYPE_CAR} from some other ui mode.
*/
public static String ACTION_ENTER_CAR_MODE = "android.app.action.ENTER_CAR_MODE";
/**
* Broadcast sent when an app has entered car mode using either {@link #enableCarMode(int)} or
* {@link #enableCarMode(int, int)}.
* <p>
* Unlike {@link #ACTION_ENTER_CAR_MODE}, which is only sent when the global car mode state
* (i.e. {@link #getCurrentModeType()}) transitions to {@link Configuration#UI_MODE_TYPE_CAR},
* this intent is sent any time an app declares it has entered car mode. Thus, this intent is
* intended for use by a component which needs to know not only when the global car mode state
* changed, but also when the highest priority app declaring car mode has changed.
* <p>
* This broadcast includes the package name of the app which requested to enter car mode in
* {@link #EXTRA_CALLING_PACKAGE}. The priority the app entered car mode at is specified in
* {@link #EXTRA_PRIORITY}.
* <p>
* This is primarily intended to be received by other components of the Android OS.
* <p>
* Receiver requires permission: {@link android.Manifest.permission.HANDLE_CAR_MODE_CHANGES}
* @hide
*/
@SystemApi
public static final String ACTION_ENTER_CAR_MODE_PRIORITIZED =
"android.app.action.ENTER_CAR_MODE_PRIORITIZED";
/**
* Broadcast sent when the device's UI has switch away from car mode back
* to normal mode. Typically used by a car mode app, to dismiss itself
* when the user exits car mode.
* <p>
* This intent is broadcast when {@link #getCurrentModeType()} transitions from
* {@link Configuration#UI_MODE_TYPE_CAR} to some other ui mode.
*/
public static String ACTION_EXIT_CAR_MODE = "android.app.action.EXIT_CAR_MODE";
/**
* Broadcast sent when an app has exited car mode using {@link #disableCarMode(int)}.
* <p>
* Unlike {@link #ACTION_EXIT_CAR_MODE}, which is only sent when the global car mode state
* (i.e. {@link #getCurrentModeType()}) transitions to a non-car mode state such as
* {@link Configuration#UI_MODE_TYPE_NORMAL}, this intent is sent any time an app declares it
* has exited car mode. Thus, this intent is intended for use by a component which needs to
* know not only when the global car mode state changed, but also when the highest priority app
* declaring car mode has changed.
* <p>
* This broadcast includes the package name of the app which requested to exit car mode in
* {@link #EXTRA_CALLING_PACKAGE}. The priority the app originally entered car mode at is
* specified in {@link #EXTRA_PRIORITY}.
* <p>
* If {@link #DISABLE_CAR_MODE_ALL_PRIORITIES} is used when disabling car mode (i.e. this is
* initiated by the user via the persistent car mode notification), this broadcast is sent once
* for each priority level for which car mode is being disabled.
* <p>
* This is primarily intended to be received by other components of the Android OS.
* <p>
* Receiver requires permission: {@link android.Manifest.permission.HANDLE_CAR_MODE_CHANGES}
* @hide
*/
@SystemApi
public static final String ACTION_EXIT_CAR_MODE_PRIORITIZED =
"android.app.action.EXIT_CAR_MODE_PRIORITIZED";
/**
* Broadcast sent when the device's UI has switched to desk mode,
* by being placed in a desk dock. After
* sending the broadcast, the system will start the intent
* {@link android.content.Intent#ACTION_MAIN} with category
* {@link android.content.Intent#CATEGORY_DESK_DOCK}
* to display the desk UI, which typically what an application would
* implement to provide their own interface. However, applications can
* also monitor this Intent in order to be informed of mode changes or
* prevent the normal desk UI from being displayed by setting the result
* of the broadcast to {@link Activity#RESULT_CANCELED}.
*/
public static String ACTION_ENTER_DESK_MODE = "android.app.action.ENTER_DESK_MODE";
/**
* Broadcast sent when the device's UI has switched away from desk mode back
* to normal mode. Typically used by a desk mode app, to dismiss itself
* when the user exits desk mode.
*/
public static String ACTION_EXIT_DESK_MODE = "android.app.action.EXIT_DESK_MODE";
/**
* String extra used with {@link #ACTION_ENTER_CAR_MODE_PRIORITIZED} and
* {@link #ACTION_EXIT_CAR_MODE_PRIORITIZED} to indicate the package name of the app which
* requested to enter or exit car mode.
* @hide
*/
@SystemApi
public static final String EXTRA_CALLING_PACKAGE = "android.app.extra.CALLING_PACKAGE";
/**
* Integer extra used with {@link #ACTION_ENTER_CAR_MODE_PRIORITIZED} and
* {@link #ACTION_EXIT_CAR_MODE_PRIORITIZED} to indicate the priority level at which car mode
* is being disabled.
* @hide
*/
@SystemApi
public static final String EXTRA_PRIORITY = "android.app.extra.PRIORITY";
/** @hide */
@IntDef(prefix = { "MODE_" }, value = {
MODE_NIGHT_AUTO,
MODE_NIGHT_CUSTOM,
MODE_NIGHT_NO,
MODE_NIGHT_YES
})
@Retention(RetentionPolicy.SOURCE)
public @interface NightMode {}
/**
* Constant for {@link #setNightMode(int)} and {@link #getNightMode()}:
* automatically switch night mode on and off based on the time.
*/
public static final int MODE_NIGHT_AUTO = 0;
/**
* Constant for {@link #setNightMode(int)} and {@link #getNightMode()}:
* automatically switch night mode on and off based on the time.
*/
public static final int MODE_NIGHT_CUSTOM = 3;
/**
* Constant for {@link #setNightMode(int)} and {@link #getNightMode()}:
* never run in night mode.
*/
public static final int MODE_NIGHT_NO = 1;
/**
* Constant for {@link #setNightMode(int)} and {@link #getNightMode()}:
* always run in night mode.
*/
public static final int MODE_NIGHT_YES = 2;
private IUiModeManager mService;
/**
* Context required for getting the opPackageName of API caller; maybe be {@code null} if the
* old constructor marked with UnSupportedAppUsage is used.
*/
private @Nullable Context mContext;
@UnsupportedAppUsage
/*package*/ UiModeManager() throws ServiceNotFoundException {
this(null /* context */);
}
/*package*/ UiModeManager(Context context) throws ServiceNotFoundException {
mService = IUiModeManager.Stub.asInterface(
ServiceManager.getServiceOrThrow(Context.UI_MODE_SERVICE));
mContext = context;
}
/**
* Flag for use with {@link #enableCarMode(int)}: go to the car
* home activity as part of the enable. Enabling this way ensures
* a clean transition between the current activity (in non-car-mode) and
* the car home activity that will serve as home while in car mode. This
* will switch to the car home activity even if we are already in car mode.
*/
public static final int ENABLE_CAR_MODE_GO_CAR_HOME = 0x0001;
/**
* Flag for use with {@link #enableCarMode(int)}: allow sleep mode while in car mode.
* By default, when this flag is not set, the system may hold a full wake lock to keep the
* screen turned on and prevent the system from entering sleep mode while in car mode.
* Setting this flag disables such behavior and the system may enter sleep mode
* if there is no other user activity and no other wake lock held.
* Setting this flag can be relevant for a car dock application that does not require the
* screen kept on.
*/
public static final int ENABLE_CAR_MODE_ALLOW_SLEEP = 0x0002;
/** @hide */
@IntDef(prefix = { "ENABLE_CAR_MODE_" }, value = {
ENABLE_CAR_MODE_GO_CAR_HOME,
ENABLE_CAR_MODE_ALLOW_SLEEP
})
@Retention(RetentionPolicy.SOURCE)
public @interface EnableCarMode {}
/**
* Force device into car mode, like it had been placed in the car dock.
* This will cause the device to switch to the car home UI as part of
* the mode switch.
* @param flags Must be 0.
*/
public void enableCarMode(int flags) {
enableCarMode(DEFAULT_PRIORITY, flags);
}
/**
* Force device into car mode, like it had been placed in the car dock. This will cause the
* device to switch to the car home UI as part of the mode switch.
* <p>
* An app may request to enter car mode when the system is already in car mode. The app may
* specify a "priority" when entering car mode. The device will remain in car mode
* (i.e. {@link #getCurrentModeType()} is {@link Configuration#UI_MODE_TYPE_CAR}) as long as
* there is a priority level at which car mode have been enabled.
* <p>
* Specifying a priority level when entering car mode is important in cases where multiple apps
* on a device implement a car-mode {@link android.telecom.InCallService} (see
* {@link android.telecom.TelecomManager#METADATA_IN_CALL_SERVICE_CAR_MODE_UI}). The
* {@link android.telecom.InCallService} associated with the highest priority app which entered
* car mode will be bound to by Telecom and provided with information about ongoing calls on
* the device.
* <p>
* System apps holding the required permission can enable car mode when the app determines the
* correct conditions exist for that app to be in car mode. The device maker should ensure that
* where multiple apps exist on the device which can potentially enter car mode, appropriate
* priorities are used to ensure that calls delivered by the
* {@link android.telecom.InCallService} API are sent to the highest priority app given the
* desired behavior of the car mode experience on the device.
* <p>
* If app A and app B both meet their own criteria to enable car mode, and it is desired that
* app B should be the one which should receive call information in that scenario, the priority
* for app B should be higher than the one for app A. The higher priority of app B compared to
* A means it will be bound to during calls and app A will not. When app B no longer meets its
* criteria for providing a car mode experience it uses {@link #disableCarMode(int)} to disable
* car mode at its priority level. The system will then unbind from app B and bind to app A as
* it has the next highest priority.
* <p>
* When an app enables car mode at a certain priority, it can disable car mode at the specified
* priority level using {@link #disableCarMode(int)}. An app may only enable car mode at a
* single priority.
* <p>
* Public apps are assumed to enter/exit car mode at the lowest priority,
* {@link #DEFAULT_PRIORITY}.
*
* @param priority The declared priority for the caller, where {@link #DEFAULT_PRIORITY} (0) is
* the lowest priority and higher numbers represent a higher priority.
* The priorities apps declare when entering car mode is determined by the
* device manufacturer based on the desired car mode experience.
* @param flags Car mode flags.
* @hide
*/
@SystemApi
@TestApi
@RequiresPermission(android.Manifest.permission.ENTER_CAR_MODE_PRIORITIZED)
public void enableCarMode(@IntRange(from = 0) int priority, @EnableCarMode int flags) {
if (mService != null) {
try {
mService.enableCarMode(flags, priority,
mContext == null ? null : mContext.getOpPackageName());
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
}
/**
* Flag for use with {@link #disableCarMode(int)}: go to the normal
* home activity as part of the disable. Disabling this way ensures
* a clean transition between the current activity (in car mode) and
* the original home activity (which was typically last running without
* being in car mode).
*/
public static final int DISABLE_CAR_MODE_GO_HOME = 0x0001;
/**
* Flag for use with {@link #disableCarMode(int)}: Disables car mode at ALL priority levels.
* Primarily intended for use from {@link com.android.internal.app.DisableCarModeActivity} to
* provide the user with a means to exit car mode at all priority levels.
* @hide
*/
public static final int DISABLE_CAR_MODE_ALL_PRIORITIES = 0x0002;
/** @hide */
@IntDef(prefix = { "DISABLE_CAR_MODE_" }, value = {
DISABLE_CAR_MODE_GO_HOME
})
@Retention(RetentionPolicy.SOURCE)
public @interface DisableCarMode {}
/**
* The default priority used for entering car mode.
* <p>
* Callers of the {@link #enableCarMode(int)} priority will be assigned the default priority.
* This is considered the lowest possible priority for enabling car mode.
* <p>
* System apps can specify a priority other than the default priority when using
* {@link #enableCarMode(int, int)} to enable car mode.
* @hide
*/
@SystemApi
public static final int DEFAULT_PRIORITY = 0;
/**
* Turn off special mode if currently in car mode.
* @param flags One of the disable car mode flags.
*/
public void disableCarMode(@DisableCarMode int flags) {
if (mService != null) {
try {
mService.disableCarModeByCallingPackage(flags,
mContext == null ? null : mContext.getOpPackageName());
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
}
/**
* Return the current running mode type. May be one of
* {@link Configuration#UI_MODE_TYPE_NORMAL Configuration.UI_MODE_TYPE_NORMAL},
* {@link Configuration#UI_MODE_TYPE_DESK Configuration.UI_MODE_TYPE_DESK},
* {@link Configuration#UI_MODE_TYPE_CAR Configuration.UI_MODE_TYPE_CAR},
* {@link Configuration#UI_MODE_TYPE_TELEVISION Configuration.UI_MODE_TYPE_TELEVISION},
* {@link Configuration#UI_MODE_TYPE_APPLIANCE Configuration.UI_MODE_TYPE_APPLIANCE},
* {@link Configuration#UI_MODE_TYPE_WATCH Configuration.UI_MODE_TYPE_WATCH}, or
* {@link Configuration#UI_MODE_TYPE_VR_HEADSET Configuration.UI_MODE_TYPE_VR_HEADSET}.
*/
public int getCurrentModeType() {
if (mService != null) {
try {
return mService.getCurrentModeType();
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
return Configuration.UI_MODE_TYPE_NORMAL;
}
/**
* Sets the system-wide night mode.
* <p>
* The mode can be one of:
* <ul>
* <li><em>{@link #MODE_NIGHT_NO}<em> sets the device into
* {@code notnight} mode</li>
* <li><em>{@link #MODE_NIGHT_YES}</em> sets the device into
* {@code night} mode</li>
* <li><em>{@link #MODE_NIGHT_CUSTOM}</em> automatically switches between
* {@code night} and {@code notnight} based on the custom time set (or default)</li>
* <li><em>{@link #MODE_NIGHT_AUTO}</em> automatically switches between
* {@code night} and {@code notnight} based on the device's current
* location and certain other sensors</li>
* </ul>
* <p>
* <strong>Note:</strong> On API 22 and below, changes to the night mode
* are only effective when the {@link Configuration#UI_MODE_TYPE_CAR car}
* or {@link Configuration#UI_MODE_TYPE_DESK desk} mode is enabled on a
* device. On API 23 through API 28, changes to night mode are always effective.
* <p>
* Starting in API 29, when the device is in car mode and this method is called, night mode
* will change, but the new setting is not persisted and the previously persisted setting
* will be restored when the device exits car mode.
* <p>
* Changes to night mode take effect globally and will result in a configuration change
* (and potentially an Activity lifecycle event) being applied to all running apps.
* Developers interested in an app-local implementation of night mode should consider using
* {@link android.support.v7.app.AppCompatDelegate#setDefaultNightMode(int)} to manage the
* -night qualifier locally.
*
* @param mode the night mode to set
* @see #getNightMode()
*/
public void setNightMode(@NightMode int mode) {
if (mService != null) {
try {
mService.setNightMode(mode);
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
}
/**
* Returns the currently configured night mode.
* <p>
* May be one of:
* <ul>
* <li>{@link #MODE_NIGHT_NO}</li>
* <li>{@link #MODE_NIGHT_YES}</li>
* <li>{@link #MODE_NIGHT_AUTO}</li>
* <li>{@link #MODE_NIGHT_CUSTOM}</li>
* <li>{@code -1} on error</li>
* </ul>
*
* @return the current night mode, or {@code -1} on error
* @see #setNightMode(int)
*/
public @NightMode int getNightMode() {
if (mService != null) {
try {
return mService.getNightMode();
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
return -1;
}
/**
* @return If UI mode is locked or not. When UI mode is locked, calls to change UI mode
* like {@link #enableCarMode(int)} will silently fail.
* @hide
*/
@TestApi
public boolean isUiModeLocked() {
if (mService != null) {
try {
return mService.isUiModeLocked();
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
return true;
}
/**
* Returns whether night mode is locked or not.
* <p>
* When night mode is locked, only privileged system components may change
* night mode and calls from non-privileged applications to change night
* mode will fail silently.
*
* @return {@code true} if night mode is locked or {@code false} otherwise
* @hide
*/
@TestApi
public boolean isNightModeLocked() {
if (mService != null) {
try {
return mService.isNightModeLocked();
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
return true;
}
/**
* @hide
*/
public boolean setNightModeActivated(boolean active) {
if (mService != null) {
try {
return mService.setNightModeActivated(active);
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
return false;
}
/**
* Returns the time of the day Dark theme activates
* <p>
* When night mode is {@link #MODE_NIGHT_CUSTOM}, the system uses
* this time set to activate it automatically.
*/
@NonNull
public LocalTime getCustomNightModeStart() {
if (mService != null) {
try {
return LocalTime.ofNanoOfDay(mService.getCustomNightModeStart() * 1000);
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
return LocalTime.MIDNIGHT;
}
/**
* Sets the time of the day Dark theme activates
* <p>
* When night mode is {@link #MODE_NIGHT_CUSTOM}, the system uses
* this time set to activate it automatically
* @param time The time of the day Dark theme should activate
*/
public void setCustomNightModeStart(@NonNull LocalTime time) {
if (mService != null) {
try {
mService.setCustomNightModeStart(time.toNanoOfDay() / 1000);
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
}
/**
* Returns the time of the day Dark theme deactivates
* <p>
* When night mode is {@link #MODE_NIGHT_CUSTOM}, the system uses
* this time set to deactivate it automatically.
*/
@NonNull
public LocalTime getCustomNightModeEnd() {
if (mService != null) {
try {
return LocalTime.ofNanoOfDay(mService.getCustomNightModeEnd() * 1000);
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
return LocalTime.MIDNIGHT;
}
/**
* Sets the time of the day Dark theme deactivates
* <p>
* When night mode is {@link #MODE_NIGHT_CUSTOM}, the system uses
* this time set to deactivate it automatically.
* @param time The time of the day Dark theme should deactivate
*/
public void setCustomNightModeEnd(@NonNull LocalTime time) {
if (mService != null) {
try {
mService.setCustomNightModeEnd(time.toNanoOfDay() / 1000);
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
}
}
}