Add vr persistent mode enable/disable am: 74db2a36

# Copyright 2017 The Android Open Source Project

#

LOCAL_PATH:= $(call my-dir)

include $(CLEAR_VARS)

LOCAL_SRC_FILES := $(call all-subdir-java-files)

LOCAL_MODULE := vr

include $(BUILD_JAVA_LIBRARY)

include $(CLEAR_VARS)

LOCAL_MODULE := vr

LOCAL_SRC_FILES := vr

LOCAL_MODULE_CLASS := EXECUTABLES

LOCAL_MODULE_TAGS := optional

include $(BUILD_PREBUILT)

   Copyright (c) 2017, The Android Open Source Project

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/*

 * Copyright (C) 2017 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.commands.vr;

import android.content.Context;

import android.os.RemoteException;

import android.os.ServiceManager;

import android.service.vr.IVrManager;

import com.android.internal.os.BaseCommand;

import java.io.PrintStream;

public final class Vr extends BaseCommand {

    /**

     * Command-line entry point.

     *

     * @param args The command-line arguments

     */

    public static void main(String[] args) {

      (new Vr()).run(args);

    }

    private static final String COMMAND_SET_PERSISTENT_VR_MODE_ENABLED = "set-persistent-vr-mode-enabled";

    private IVrManager mVrService;

    @Override

    public void onShowUsage(PrintStream out) {

        out.println(

                "usage: vr [subcommand]\n" +

                "usage: vr set-persistent-vr-mode-enabled [true|false]\n"

                );

    }

    @Override

    public void onRun() throws Exception {

        mVrService = IVrManager.Stub.asInterface(ServiceManager.getService(Context.VR_SERVICE));

        if (mVrService == null) {

            showError("Error: Could not access the Vr Manager. Is the system running?");

            return;

        }

        String command = nextArgRequired();

        switch (command) {

            case COMMAND_SET_PERSISTENT_VR_MODE_ENABLED:

                runSetPersistentVrModeEnabled();

                break;

            default:

                throw new IllegalArgumentException ("unknown command '" + command + "'");

        }

    }

    private void runSetPersistentVrModeEnabled() throws RemoteException {

        String enableStr = nextArg();

        boolean enabled = Boolean.parseBoolean(enableStr);

        try {

            mVrService.setPersistentVrModeEnabled(enabled);

        } catch (RemoteException re) {

            System.err.println("Error: Can't set persistent mode " + re);

        }

    }

}

# Script to start "vr" on the device

#

base=/system

export CLASSPATH=$base/framework/vr.jar

exec app_process $base/bin com.android.commands.vr.Vr "$@"