2 * Copyright (C) 2010 The Android Open Source Project
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
19 import android.annotation.IntDef;
20 import android.annotation.TestApi;
21 import android.content.Context;
22 import android.content.res.Configuration;
23 import android.os.RemoteException;
24 import android.os.ServiceManager;
25 import android.util.Log;
27 import java.lang.annotation.Retention;
28 import java.lang.annotation.RetentionPolicy;
31 * This class provides access to the system uimode services. These services
32 * allow applications to control UI modes of the device.
33 * It provides functionality to disable the car mode and it gives access to the
34 * night mode settings.
36 * <p>These facilities are built on top of the underlying
37 * {@link android.content.Intent#ACTION_DOCK_EVENT} broadcasts that are sent when the user
38 * physical places the device into and out of a dock. When that happens,
39 * the UiModeManager switches the system {@link android.content.res.Configuration}
40 * to the appropriate UI mode, sends broadcasts about the mode switch, and
41 * starts the corresponding mode activity if appropriate. See the
42 * broadcasts {@link #ACTION_ENTER_CAR_MODE} and
43 * {@link #ACTION_ENTER_DESK_MODE} for more information.
45 * <p>In addition, the user may manually switch the system to car mode without
46 * physically being in a dock. While in car mode -- whether by manual action
47 * from the user or being physically placed in a dock -- a notification is
48 * displayed allowing the user to exit dock mode. Thus the dock mode
49 * represented here may be different than the current state of the underlying
50 * dock event broadcast.
52 * <p>You do not instantiate this class directly; instead, retrieve it through
53 * {@link android.content.Context#getSystemService
54 * Context.getSystemService(Context.UI_MODE_SERVICE)}.
56 public class UiModeManager {
57 private static final String TAG = "UiModeManager";
60 * Broadcast sent when the device's UI has switched to car mode, either
61 * by being placed in a car dock or explicit action of the user. After
62 * sending the broadcast, the system will start the intent
63 * {@link android.content.Intent#ACTION_MAIN} with category
64 * {@link android.content.Intent#CATEGORY_CAR_DOCK}
65 * to display the car UI, which typically what an application would
66 * implement to provide their own interface. However, applications can
67 * also monitor this Intent in order to be informed of mode changes or
68 * prevent the normal car UI from being displayed by setting the result
69 * of the broadcast to {@link Activity#RESULT_CANCELED}.
71 public static String ACTION_ENTER_CAR_MODE = "android.app.action.ENTER_CAR_MODE";
74 * Broadcast sent when the device's UI has switch away from car mode back
75 * to normal mode. Typically used by a car mode app, to dismiss itself
76 * when the user exits car mode.
78 public static String ACTION_EXIT_CAR_MODE = "android.app.action.EXIT_CAR_MODE";
81 * Broadcast sent when the device's UI has switched to desk mode,
82 * by being placed in a desk dock. After
83 * sending the broadcast, the system will start the intent
84 * {@link android.content.Intent#ACTION_MAIN} with category
85 * {@link android.content.Intent#CATEGORY_DESK_DOCK}
86 * to display the desk UI, which typically what an application would
87 * implement to provide their own interface. However, applications can
88 * also monitor this Intent in order to be informed of mode changes or
89 * prevent the normal desk UI from being displayed by setting the result
90 * of the broadcast to {@link Activity#RESULT_CANCELED}.
92 public static String ACTION_ENTER_DESK_MODE = "android.app.action.ENTER_DESK_MODE";
95 * Broadcast sent when the device's UI has switched away from desk mode back
96 * to normal mode. Typically used by a desk mode app, to dismiss itself
97 * when the user exits desk mode.
99 public static String ACTION_EXIT_DESK_MODE = "android.app.action.EXIT_DESK_MODE";
102 @IntDef({MODE_NIGHT_AUTO, MODE_NIGHT_NO, MODE_NIGHT_YES})
103 @Retention(RetentionPolicy.SOURCE)
104 public @interface NightMode {}
107 * Constant for {@link #setNightMode(int)} and {@link #getNightMode()}:
108 * automatically switch night mode on and off based on the time.
110 public static final int MODE_NIGHT_AUTO = Configuration.UI_MODE_NIGHT_UNDEFINED >> 4;
113 * Constant for {@link #setNightMode(int)} and {@link #getNightMode()}:
114 * never run in night mode.
116 public static final int MODE_NIGHT_NO = Configuration.UI_MODE_NIGHT_NO >> 4;
119 * Constant for {@link #setNightMode(int)} and {@link #getNightMode()}:
120 * always run in night mode.
122 public static final int MODE_NIGHT_YES = Configuration.UI_MODE_NIGHT_YES >> 4;
124 private IUiModeManager mService;
126 /*package*/ UiModeManager() {
127 mService = IUiModeManager.Stub.asInterface(
128 ServiceManager.getService(Context.UI_MODE_SERVICE));
132 * Flag for use with {@link #enableCarMode(int)}: go to the car
133 * home activity as part of the enable. Enabling this way ensures
134 * a clean transition between the current activity (in non-car-mode) and
135 * the car home activity that will serve as home while in car mode. This
136 * will switch to the car home activity even if we are already in car mode.
138 public static final int ENABLE_CAR_MODE_GO_CAR_HOME = 0x0001;
141 * Flag for use with {@link #enableCarMode(int)}: allow sleep mode while in car mode.
142 * By default, when this flag is not set, the system may hold a full wake lock to keep the
143 * screen turned on and prevent the system from entering sleep mode while in car mode.
144 * Setting this flag disables such behavior and the system may enter sleep mode
145 * if there is no other user activity and no other wake lock held.
146 * Setting this flag can be relevant for a car dock application that does not require the
149 public static final int ENABLE_CAR_MODE_ALLOW_SLEEP = 0x0002;
152 * Force device into car mode, like it had been placed in the car dock.
153 * This will cause the device to switch to the car home UI as part of
155 * @param flags Must be 0.
157 public void enableCarMode(int flags) {
158 if (mService != null) {
160 mService.enableCarMode(flags);
161 } catch (RemoteException e) {
162 throw e.rethrowFromSystemServer();
168 * Flag for use with {@link #disableCarMode(int)}: go to the normal
169 * home activity as part of the disable. Disabling this way ensures
170 * a clean transition between the current activity (in car mode) and
171 * the original home activity (which was typically last running without
172 * being in car mode).
174 public static final int DISABLE_CAR_MODE_GO_HOME = 0x0001;
177 * Turn off special mode if currently in car mode.
178 * @param flags May be 0 or {@link #DISABLE_CAR_MODE_GO_HOME}.
180 public void disableCarMode(int flags) {
181 if (mService != null) {
183 mService.disableCarMode(flags);
184 } catch (RemoteException e) {
185 throw e.rethrowFromSystemServer();
191 * Return the current running mode type. May be one of
192 * {@link Configuration#UI_MODE_TYPE_NORMAL Configuration.UI_MODE_TYPE_NORMAL},
193 * {@link Configuration#UI_MODE_TYPE_DESK Configuration.UI_MODE_TYPE_DESK},
194 * {@link Configuration#UI_MODE_TYPE_CAR Configuration.UI_MODE_TYPE_CAR},
195 * {@link Configuration#UI_MODE_TYPE_TELEVISION Configuration.UI_MODE_TYPE_TELEVISION},
196 * {@link Configuration#UI_MODE_TYPE_APPLIANCE Configuration.UI_MODE_TYPE_APPLIANCE}, or
197 * {@link Configuration#UI_MODE_TYPE_WATCH Configuration.UI_MODE_TYPE_WATCH}.
199 public int getCurrentModeType() {
200 if (mService != null) {
202 return mService.getCurrentModeType();
203 } catch (RemoteException e) {
204 throw e.rethrowFromSystemServer();
207 return Configuration.UI_MODE_TYPE_NORMAL;
211 * Sets the night mode.
213 * The mode can be one of:
215 * <li><em>{@link #MODE_NIGHT_NO}<em> sets the device into
216 * {@code notnight} mode</li>
217 * <li><em>{@link #MODE_NIGHT_YES}</em> sets the device into
218 * {@code night} mode</li>
219 * <li><em>{@link #MODE_NIGHT_AUTO}</em> automatically switches between
220 * {@code night} and {@code notnight} based on the device's current
221 * location and certain other sensors</li>
224 * <strong>Note:</strong> On API 22 and below, changes to the night mode
225 * are only effective when the {@link Configuration#UI_MODE_TYPE_CAR car}
226 * or {@link Configuration#UI_MODE_TYPE_DESK desk} mode is enabled on a
227 * device. Starting in API 23, changes to night mode are always effective.
229 * @param mode the night mode to set
230 * @see #getNightMode()
232 public void setNightMode(@NightMode int mode) {
233 if (mService != null) {
235 mService.setNightMode(mode);
236 } catch (RemoteException e) {
237 throw e.rethrowFromSystemServer();
243 * Returns the currently configured night mode.
247 * <li>{@link #MODE_NIGHT_NO}</li>
248 * <li>{@link #MODE_NIGHT_YES}</li>
249 * <li>{@link #MODE_NIGHT_AUTO}</li>
250 * <li>{@code -1} on error</li>
253 * @return the current night mode, or {@code -1} on error
254 * @see #setNightMode(int)
256 public @NightMode int getNightMode() {
257 if (mService != null) {
259 return mService.getNightMode();
260 } catch (RemoteException e) {
261 throw e.rethrowFromSystemServer();
268 * @return If UI mode is locked or not. When UI mode is locked, calls to change UI mode
269 * like {@link #enableCarMode(int)} will silently fail.
273 public boolean isUiModeLocked() {
274 if (mService != null) {
276 return mService.isUiModeLocked();
277 } catch (RemoteException e) {
278 throw e.rethrowFromSystemServer();
285 * Returns whether night mode is locked or not.
287 * When night mode is locked, only privileged system components may change
288 * night mode and calls from non-privileged applications to change night
289 * mode will fail silently.
291 * @return {@code true} if night mode is locked or {@code false} otherwise
295 public boolean isNightModeLocked() {
296 if (mService != null) {
298 return mService.isNightModeLocked();
299 } catch (RemoteException e) {
300 throw e.rethrowFromSystemServer();