com/android/dynsystem/BootCompletedReceiver.java

/*
 * Copyright (C) 2019 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.dynsystem;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.SystemProperties;
import android.os.UserHandle;
import android.os.image.DynamicSystemClient;
import android.os.image.DynamicSystemManager;
import android.util.FeatureFlagUtils;


/**
 * A BoardcastReceiver waiting for ACTION_BOOT_COMPLETED and ask
 * the service to display a notification if we are currently running
 * in DynamicSystem.
 */
public class BootCompletedReceiver extends BroadcastReceiver {

    private static final String TAG = "BootCompletedReceiver";

    @Override
    public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();

        if (!Intent.ACTION_BOOT_COMPLETED.equals(action)) {
            return;
        }

        DynamicSystemManager dynSystem =
                (DynamicSystemManager) context.getSystemService(Context.DYNAMIC_SYSTEM_SERVICE);

        boolean isInUse = (dynSystem != null) && dynSystem.isInUse();

        if (!isInUse && !featureFlagEnabled()) {
            return;
        }

        Intent startServiceIntent = new Intent(
                context, DynamicSystemInstallationService.class);

        startServiceIntent.setAction(DynamicSystemClient.ACTION_NOTIFY_IF_IN_USE);
        context.startServiceAsUser(startServiceIntent, UserHandle.SYSTEM);
    }

    private boolean featureFlagEnabled() {
        return SystemProperties.getBoolean(
                FeatureFlagUtils.PERSIST_PREFIX + FeatureFlagUtils.DYNAMIC_SYSTEM, false);
    }
}