Delete ShadowActivityManager

/*

 * Copyright (C) 2018 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.settingslib.testutils.shadow;

import static android.os.Build.VERSION_CODES.O;

import android.app.ActivityManager;

import android.app.IActivityManager;

import org.robolectric.RuntimeEnvironment;

import org.robolectric.annotation.Implementation;

import org.robolectric.annotation.Implements;

import org.robolectric.annotation.Resetter;

import org.robolectric.shadow.api.Shadow;

import org.robolectric.util.ReflectionHelpers;

@Implements(ActivityManager.class)

public class ShadowActivityManager {

    private static int sCurrentUserId = 0;

    private static int sUserSwitchedTo = -1;

    @Resetter

    public static void reset() {

        sCurrentUserId = 0;

        sUserSwitchedTo = 0;

    }

    @Implementation

    protected static int getCurrentUser() {

        return sCurrentUserId;

    }

    @Implementation

    protected boolean switchUser(int userId) {

        sUserSwitchedTo = userId;

        return true;

    }

    @Implementation(minSdk = O)

    protected static IActivityManager getService() {

        return ReflectionHelpers.createNullProxy(IActivityManager.class);

    }

    public boolean getSwitchUserCalled() {

        return sUserSwitchedTo != -1;

    }

    public int getUserSwitchedTo() {

        return sUserSwitchedTo;

    }

    public static void setCurrentUser(int userId) {

        sCurrentUserId = userId;

    }

    public static ShadowActivityManager getShadow() {

        return (ShadowActivityManager) Shadow.extract(

                RuntimeEnvironment.application.getSystemService(ActivityManager.class));

    }

}