Android 长按电源键弹出的GlobalActions菜单

<!-- Control the behavior when the user long presses the power button.
            0 - Nothing
            1 - Global actions menu
            2 - Power off (with confirmation)
            3 - Power off (without confirmation)
            4 - Go to voice assist
            5 - Go to assistant (Settings.Secure.ASSISTANT)
    -->
    <integer name="config_longPressOnPowerBehavior">1</integer>

    private void powerLongPress(long eventTime) {
        final int behavior = getResolvedLongPressOnPowerBehavior();
        Slog.d(TAG, "powerLongPress: eventTime=" + eventTime
                + " mLongPressOnPowerBehavior=" + mLongPressOnPowerBehavior);
 
        switch (behavior) {
            case LONG_PRESS_POWER_NOTHING:
                break;
            case LONG_PRESS_POWER_GLOBAL_ACTIONS:
                mPowerKeyHandled = true;
                performHapticFeedback(HapticFeedbackConstants.LONG_PRESS, false,
                        "Power - Long Press - Global Actions");
                showGlobalActions();
                break;
            case LONG_PRESS_POWER_SHUT_OFF:
            case LONG_PRESS_POWER_SHUT_OFF_NO_CONFIRM:
                mPowerKeyHandled = true;
                performHapticFeedback(HapticFeedbackConstants.LONG_PRESS, false,
                        "Power - Long Press - Shut Off");
                sendCloseSystemWindows(SYSTEM_DIALOG_REASON_GLOBAL_ACTIONS);
                mWindowManagerFuncs.shutdown(behavior == LONG_PRESS_POWER_SHUT_OFF);
                break;
            case LONG_PRESS_POWER_GO_TO_VOICE_ASSIST:
                mPowerKeyHandled = true;
                performHapticFeedback(HapticFeedbackConstants.LONG_PRESS, false,
                        "Power - Long Press - Go To Voice Assist");
                // Some devices allow the voice assistant intent during setup (and use that intent
                // to launch something else, like Settings). So we explicitly allow that via the
                // config_allowStartActivityForLongPressOnPowerInSetup resource in config.xml.
                launchVoiceAssist(mAllowStartActivityForLongPressOnPowerDuringSetup);
                break;
            case LONG_PRESS_POWER_ASSISTANT:
                mPowerKeyHandled = true;
                performHapticFeedback(HapticFeedbackConstants.ASSISTANT_BUTTON, false,
                        "Power - Long Press - Go To Assistant");
                final int powerKeyDeviceId = Integer.MIN_VALUE;
                launchAssistAction(null, powerKeyDeviceId, eventTime,
                        AssistUtils.INVOCATION_TYPE_POWER_BUTTON_LONG_PRESS);
                break;
        }
    }

@Override
    public void showGlobalActions() {
        mHandler.removeMessages(MSG_DISPATCH_SHOW_GLOBAL_ACTIONS);
        mHandler.sendEmptyMessage(MSG_DISPATCH_SHOW_GLOBAL_ACTIONS);
    }

public void handleMessage(Message msg) {
            switch (msg.what) {
                case MSG_DISPATCH_MEDIA_KEY_WITH_WAKE_LOCK:
                    dispatchMediaKeyWithWakeLock((KeyEvent)msg.obj);
                    break;
                case MSG_DISPATCH_MEDIA_KEY_REPEAT_WITH_WAKE_LOCK:
                    dispatchMediaKeyRepeatWithWakeLock((KeyEvent)msg.obj);
                    break;
                case MSG_DISPATCH_SHOW_RECENTS:
                    showRecentApps(false);
                    break;
                case MSG_DISPATCH_SHOW_GLOBAL_ACTIONS:
                    showGlobalActionsInternal();
                    break;

void showGlobalActionsInternal() {
        if (mGlobalActions == null) {
            mGlobalActions = new GlobalActions(mContext, mWindowManagerFuncs);
        }
        final boolean keyguardShowing = isKeyguardShowingAndNotOccluded();
        mGlobalActions.showDialog(keyguardShowing, isDeviceProvisioned());
        // since it took two seconds of long press to bring this up,
        // poke the wake lock so they have some time to see the dialog.
        mPowerManager.userActivity(SystemClock.uptimeMillis(), false);
    }

private void ensureLegacyCreated() {
        if (mLegacyGlobalActions != null) return;
        mLegacyGlobalActions = new LegacyGlobalActions(mContext, mWindowManagerFuncs,
                this::onGlobalActionsDismissed);
    }
 
    public void showDialog(boolean keyguardShowing, boolean deviceProvisioned) {
        if (DEBUG) Slog.d(TAG, "showDialog " + keyguardShowing + " " + deviceProvisioned);
        if (mGlobalActionsProvider != null && mGlobalActionsProvider.isGlobalActionsDisabled()) {
            return;
        }
        mKeyguardShowing = keyguardShowing;
        mDeviceProvisioned = deviceProvisioned;
        mShowing = true;
        if (mGlobalActionsAvailable && !"box".equals(SystemProperties.get("ro.target.product","unkonw"))) {
            mHandler.postDelayed(mShowTimeout, 5000);
            mGlobalActionsProvider.showGlobalActions();
        } else {
            // SysUI isn't alive, show legacy menu.
            ensureLegacyCreated();
            mLegacyGlobalActions.showDialog(mKeyguardShowing, mDeviceProvisioned);
        }
    }

/**
     * Create the global actions dialog.
     * @return A new dialog.
     */
    private ActionsDialog createDialog() {
        // Simple toggle style if there's no vibrator, otherwise use a tri-state
        if (!mHasVibrator) {
            mSilentModeAction = new SilentModeToggleAction();
        } else {
            mSilentModeAction = new SilentModeTriStateAction(mContext, mAudioManager, mHandler);
        }
        mAirplaneModeOn = new ToggleAction(
                R.drawable.ic_lock_airplane_mode,
                R.drawable.ic_lock_airplane_mode_off,
                R.string.global_actions_toggle_airplane_mode,
                R.string.global_actions_airplane_mode_on_status,
                R.string.global_actions_airplane_mode_off_status) {
 
            @Override
            public void onToggle(boolean on) {
                if (mHasTelephony && TelephonyProperties.in_ecm_mode().orElse(false)) {
                    mIsWaitingForEcmExit = true;
                    // Launch ECM exit dialog
                    Intent ecmDialogIntent =
                            new Intent(TelephonyManager.ACTION_SHOW_NOTICE_ECM_BLOCK_OTHERS, null);
                    ecmDialogIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                    mContext.startActivity(ecmDialogIntent);
                } else {
                    changeAirplaneModeSystemSetting(on);
                }
            }
 
            @Override
            protected void changeStateFromPress(boolean buttonOn) {
                if (!mHasTelephony) return;
 
                // In ECM mode airplane state cannot be changed
                if (!TelephonyProperties.in_ecm_mode().orElse(false)) {
                    mState = buttonOn ? State.TurningOn : State.TurningOff;
                    mAirplaneState = mState;
                }
            }
 
            @Override
            public boolean showDuringKeyguard() {
                return true;
            }
 
            @Override
            public boolean showBeforeProvisioning() {
                return false;
            }
        };
        onAirplaneModeChanged();
 
        mItems = new ArrayList<Action>();
        String[] defaultActions = mContext.getResources().getStringArray(
                com.android.internal.R.array.config_globalActionsList);
 
        ArraySet<String> addedKeys = new ArraySet<String>();
        for (int i = 0; i < defaultActions.length; i++) {
            String actionKey = defaultActions[i];
            if (addedKeys.contains(actionKey)) {
                // If we already have added this, don't add it again.
                continue;
            }
            if (GLOBAL_ACTION_KEY_POWER.equals(actionKey)) {
                mItems.add(new PowerAction(mContext, mWindowManagerFuncs));
            } else if (GLOBAL_ACTION_KEY_AIRPLANE.equals(actionKey)) {
                mItems.add(mAirplaneModeOn);
            } else if (GLOBAL_ACTION_KEY_BUGREPORT.equals(actionKey)) {
                if (Settings.Global.getInt(mContext.getContentResolver(),
                        Settings.Global.BUGREPORT_IN_POWER_MENU, 0) != 0 && isCurrentUserOwner()) {
                    mItems.add(new BugReportAction());
                }
            } else if (GLOBAL_ACTION_KEY_SILENT.equals(actionKey)) {
                if (mShowSilentToggle) {
                    mItems.add(mSilentModeAction);
                }
            } else if (GLOBAL_ACTION_KEY_USERS.equals(actionKey)) {
                if (SystemProperties.getBoolean("fw.power_user_switcher", false)) {
                    addUsersToMenu(mItems);
                }
            } else if (GLOBAL_ACTION_KEY_SETTINGS.equals(actionKey)) {
                mItems.add(getSettingsAction());
            } else if (GLOBAL_ACTION_KEY_LOCKDOWN.equals(actionKey)) {
                mItems.add(getLockdownAction());
            } else if (GLOBAL_ACTION_KEY_VOICEASSIST.equals(actionKey)) {
                mItems.add(getVoiceAssistAction());
            } else if (GLOBAL_ACTION_KEY_ASSIST.equals(actionKey)) {
                mItems.add(getAssistAction());
            } else if (GLOBAL_ACTION_KEY_RESTART.equals(actionKey)) {
                mItems.add(new RestartAction(mContext, mWindowManagerFuncs));
            } else {
                Log.e(TAG, "Invalid global action key " + actionKey);
            }
            // Add here so we don't add more than one.
            addedKeys.add(actionKey);
        }
 
        if (mEmergencyAffordanceManager.needsEmergencyAffordance()) {
            mItems.add(getEmergencyAction());
        }
 
        mAdapter = new ActionsAdapter(mContext, mItems,
                () -> mDeviceProvisioned, () -> mKeyguardShowing);
 
        AlertController.AlertParams params = new AlertController.AlertParams(mContext);
        params.mAdapter = mAdapter;
        params.mOnClickListener = this;
        params.mForceInverseBackground = true;
 
        ActionsDialog dialog = new ActionsDialog(mContext, params);
        dialog.setCanceledOnTouchOutside(false); // Handled by the custom class.
 
        dialog.getListView().setItemsCanFocus(true);
        dialog.getListView().setLongClickable(true);
        dialog.getListView().setOnItemLongClickListener(
                new AdapterView.OnItemLongClickListener() {
                    @Override
                    public boolean onItemLongClick(AdapterView<?> parent, View view, int position,
                            long id) {
                        final Action action = mAdapter.getItem(position);
                        if (action instanceof LongPressAction) {
                            return ((LongPressAction) action).onLongPress();
                        }
                        return false;
                    }
        });
        dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG);
        // Don't acquire soft keyboard focus, to avoid destroying state when capturing bugreports
        dialog.getWindow().setFlags(FLAG_ALT_FOCUSABLE_IM, FLAG_ALT_FOCUSABLE_IM);
 
        dialog.setOnDismissListener(this);
 
        return dialog;
    }
 
    private class BugReportAction extends SinglePressAction implements LongPressAction {
 
        public BugReportAction() {
            super(com.android.internal.R.drawable.ic_lock_bugreport, R.string.bugreport_title);
        }
 
        @Override
        public void onPress() {
            // don't actually trigger the bugreport if we are running stability
            // tests via monkey
            if (ActivityManager.isUserAMonkey()) {
                return;
            }
            // Add a little delay before executing, to give the
            // dialog a chance to go away before it takes a
            // screenshot.
            mHandler.postDelayed(new Runnable() {
                @Override
                public void run() {
                    try {
                        // Take an "interactive" bugreport.
                        MetricsLogger.action(mContext,
                                MetricsEvent.ACTION_BUGREPORT_FROM_POWER_MENU_INTERACTIVE);
                        ActivityManager.getService().requestInteractiveBugReport();
                    } catch (RemoteException e) {
                    }
                }
            }, 500);
        }
 
        @Override
        public boolean onLongPress() {
            // don't actually trigger the bugreport if we are running stability
            // tests via monkey
            if (ActivityManager.isUserAMonkey()) {
                return false;
            }
            try {
                // Take a "full" bugreport.
                MetricsLogger.action(mContext, MetricsEvent.ACTION_BUGREPORT_FROM_POWER_MENU_FULL);
                ActivityManager.getService().requestFullBugReport();
            } catch (RemoteException e) {
            }
            return false;
        }
 
        @Override
        public boolean showDuringKeyguard() {
            return true;
        }
 
        @Override
        public boolean showBeforeProvisioning() {
            return false;
        }
 
        @Override
        public String getStatus() {
            return mContext.getString(
                    com.android.internal.R.string.bugreport_status,
                    Build.VERSION.RELEASE_OR_CODENAME,
                    Build.ID);
        }
    }