Java tutorial
/* * Copyright (C) 2007 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.SystemService; import android.annotation.UnsupportedAppUsage; import android.content.Context; import android.os.Binder; import android.os.IBinder; import android.os.RemoteException; import android.os.ServiceManager; import android.util.Slog; import android.view.View; import com.android.internal.statusbar.IStatusBarService; import java.lang.annotation.Retention; import java.lang.annotation.RetentionPolicy; /** * Allows an app to control the status bar. * * @hide */ @SystemService(Context.STATUS_BAR_SERVICE) public class StatusBarManager { @UnsupportedAppUsage public static final int DISABLE_EXPAND = View.STATUS_BAR_DISABLE_EXPAND; public static final int DISABLE_NOTIFICATION_ICONS = View.STATUS_BAR_DISABLE_NOTIFICATION_ICONS; public static final int DISABLE_NOTIFICATION_ALERTS = View.STATUS_BAR_DISABLE_NOTIFICATION_ALERTS; @Deprecated @UnsupportedAppUsage public static final int DISABLE_NOTIFICATION_TICKER = View.STATUS_BAR_DISABLE_NOTIFICATION_TICKER; public static final int DISABLE_SYSTEM_INFO = View.STATUS_BAR_DISABLE_SYSTEM_INFO; public static final int DISABLE_HOME = View.STATUS_BAR_DISABLE_HOME; public static final int DISABLE_RECENT = View.STATUS_BAR_DISABLE_RECENT; public static final int DISABLE_BACK = View.STATUS_BAR_DISABLE_BACK; public static final int DISABLE_CLOCK = View.STATUS_BAR_DISABLE_CLOCK; public static final int DISABLE_SEARCH = View.STATUS_BAR_DISABLE_SEARCH; @Deprecated public static final int DISABLE_NAVIGATION = View.STATUS_BAR_DISABLE_HOME | View.STATUS_BAR_DISABLE_RECENT; @UnsupportedAppUsage public static final int DISABLE_NONE = 0x00000000; public static final int DISABLE_MASK = DISABLE_EXPAND | DISABLE_NOTIFICATION_ICONS | DISABLE_NOTIFICATION_ALERTS | DISABLE_NOTIFICATION_TICKER | DISABLE_SYSTEM_INFO | DISABLE_RECENT | DISABLE_HOME | DISABLE_BACK | DISABLE_CLOCK | DISABLE_SEARCH; /** * Flag to disable quick settings. * * Setting this flag disables quick settings completely, but does not disable expanding the * notification shade. */ public static final int DISABLE2_QUICK_SETTINGS = 1; public static final int DISABLE2_SYSTEM_ICONS = 1 << 1; public static final int DISABLE2_NOTIFICATION_SHADE = 1 << 2; public static final int DISABLE2_GLOBAL_ACTIONS = 1 << 3; public static final int DISABLE2_ROTATE_SUGGESTIONS = 1 << 4; public static final int DISABLE2_NONE = 0x00000000; public static final int DISABLE2_MASK = DISABLE2_QUICK_SETTINGS | DISABLE2_SYSTEM_ICONS | DISABLE2_NOTIFICATION_SHADE | DISABLE2_GLOBAL_ACTIONS | DISABLE2_ROTATE_SUGGESTIONS; @IntDef(flag = true, prefix = { "DISABLE2_" }, value = { DISABLE2_NONE, DISABLE2_MASK, DISABLE2_QUICK_SETTINGS, DISABLE2_SYSTEM_ICONS, DISABLE2_NOTIFICATION_SHADE, DISABLE2_GLOBAL_ACTIONS, DISABLE2_ROTATE_SUGGESTIONS }) @Retention(RetentionPolicy.SOURCE) public @interface Disable2Flags { } public static final int NAVIGATION_HINT_BACK_ALT = 1 << 0; public static final int NAVIGATION_HINT_IME_SHOWN = 1 << 1; public static final int WINDOW_STATUS_BAR = 1; public static final int WINDOW_NAVIGATION_BAR = 2; public static final int WINDOW_STATE_SHOWING = 0; public static final int WINDOW_STATE_HIDING = 1; public static final int WINDOW_STATE_HIDDEN = 2; public static final int CAMERA_LAUNCH_SOURCE_WIGGLE = 0; public static final int CAMERA_LAUNCH_SOURCE_POWER_DOUBLE_TAP = 1; public static final int CAMERA_LAUNCH_SOURCE_LIFT_TRIGGER = 2; @UnsupportedAppUsage private Context mContext; private IStatusBarService mService; @UnsupportedAppUsage private IBinder mToken = new Binder(); @UnsupportedAppUsage StatusBarManager(Context context) { mContext = context; } @UnsupportedAppUsage private synchronized IStatusBarService getService() { if (mService == null) { mService = IStatusBarService.Stub.asInterface(ServiceManager.getService(Context.STATUS_BAR_SERVICE)); if (mService == null) { Slog.w("StatusBarManager", "warning: no STATUS_BAR_SERVICE"); } } return mService; } /** * Disable some features in the status bar. Pass the bitwise-or of the DISABLE_* flags. * To re-enable everything, pass {@link #DISABLE_NONE}. */ @UnsupportedAppUsage public void disable(int what) { try { final int userId = Binder.getCallingUserHandle().getIdentifier(); final IStatusBarService svc = getService(); if (svc != null) { svc.disableForUser(what, mToken, mContext.getPackageName(), userId); } } catch (RemoteException ex) { throw ex.rethrowFromSystemServer(); } } /** * Disable additional status bar features. Pass the bitwise-or of the DISABLE2_* flags. * To re-enable everything, pass {@link #DISABLE_NONE}. * * Warning: Only pass DISABLE2_* flags into this function, do not use DISABLE_* flags. */ public void disable2(@Disable2Flags int what) { try { final int userId = Binder.getCallingUserHandle().getIdentifier(); final IStatusBarService svc = getService(); if (svc != null) { svc.disable2ForUser(what, mToken, mContext.getPackageName(), userId); } } catch (RemoteException ex) { throw ex.rethrowFromSystemServer(); } } /** * Expand the notifications panel. */ @UnsupportedAppUsage public void expandNotificationsPanel() { try { final IStatusBarService svc = getService(); if (svc != null) { svc.expandNotificationsPanel(); } } catch (RemoteException ex) { throw ex.rethrowFromSystemServer(); } } /** * Collapse the notifications and settings panels. */ @UnsupportedAppUsage public void collapsePanels() { try { final IStatusBarService svc = getService(); if (svc != null) { svc.collapsePanels(); } } catch (RemoteException ex) { throw ex.rethrowFromSystemServer(); } } /** * Expand the settings panel. */ @UnsupportedAppUsage public void expandSettingsPanel() { expandSettingsPanel(null); } /** * Expand the settings panel and open a subPanel, pass null to just open the settings panel. */ @UnsupportedAppUsage public void expandSettingsPanel(String subPanel) { try { final IStatusBarService svc = getService(); if (svc != null) { svc.expandSettingsPanel(subPanel); } } catch (RemoteException ex) { throw ex.rethrowFromSystemServer(); } } @UnsupportedAppUsage public void setIcon(String slot, int iconId, int iconLevel, String contentDescription) { try { final IStatusBarService svc = getService(); if (svc != null) { svc.setIcon(slot, mContext.getPackageName(), iconId, iconLevel, contentDescription); } } catch (RemoteException ex) { throw ex.rethrowFromSystemServer(); } } @UnsupportedAppUsage public void removeIcon(String slot) { try { final IStatusBarService svc = getService(); if (svc != null) { svc.removeIcon(slot); } } catch (RemoteException ex) { throw ex.rethrowFromSystemServer(); } } @UnsupportedAppUsage public void setIconVisibility(String slot, boolean visible) { try { final IStatusBarService svc = getService(); if (svc != null) { svc.setIconVisibility(slot, visible); } } catch (RemoteException ex) { throw ex.rethrowFromSystemServer(); } } /** @hide */ public static String windowStateToString(int state) { if (state == WINDOW_STATE_HIDING) return "WINDOW_STATE_HIDING"; if (state == WINDOW_STATE_HIDDEN) return "WINDOW_STATE_HIDDEN"; if (state == WINDOW_STATE_SHOWING) return "WINDOW_STATE_SHOWING"; return "WINDOW_STATE_UNKNOWN"; } }