tests/framework/base/windowmanager/backgroundactivity/AppA/src/android/server/wm/backgroundactivity/appa/ForegroundActivity.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 android.server.wm.backgroundactivity.appa;

import static android.server.wm.backgroundactivity.appa.Components.ForegroundActivity.ACTION_FINISH_ACTIVITY;
import static android.server.wm.backgroundactivity.appa.Components.ForegroundActivity.ACTION_LAUNCH_BACKGROUND_ACTIVITIES;
import static android.server.wm.backgroundactivity.appa.Components.ForegroundActivity.LAUNCH_BACKGROUND_ACTIVITY_EXTRA;
import static android.server.wm.backgroundactivity.appa.Components.ForegroundActivity.LAUNCH_INTENTS_EXTRA;
import static android.server.wm.backgroundactivity.appa.Components.ForegroundActivity.LAUNCH_SECOND_BACKGROUND_ACTIVITY_EXTRA;
import static android.server.wm.backgroundactivity.appa.Components.ForegroundActivity.RELAUNCH_FOREGROUND_ACTIVITY_EXTRA;
import static android.server.wm.backgroundactivity.appa.Components.ForegroundActivity.START_ACTIVITY_FROM_FG_ACTIVITY_DELAY_MS_EXTRA;
import static android.server.wm.backgroundactivity.appa.Components.ForegroundActivity.START_ACTIVITY_FROM_FG_ACTIVITY_NEW_TASK_EXTRA;

import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.os.Parcelable;
import android.os.SystemClock;

import java.util.Arrays;

/**
 * Foreground activity that makes AppA as foreground.
 */
public class ForegroundActivity extends Activity {

    private boolean mRelaunch = false;

    private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            String action = intent.getAction();
            if (ACTION_LAUNCH_BACKGROUND_ACTIVITIES.equals(action)) {
                // Need to copy as a new array instead of just casting to Intent[] since a new
                // array of type Parcelable[] is created when deserializing.
                Parcelable[] intents = intent.getParcelableArrayExtra(LAUNCH_INTENTS_EXTRA);
                startActivities(Arrays.copyOf(intents, intents.length, Intent[].class));
            } else if (ACTION_FINISH_ACTIVITY.equals(action)) {
                finish();
            }
        }
    };

    @Override
    public void onCreate(Bundle bundle) {
        super.onCreate(bundle);
        Intent intent = getIntent();
        mRelaunch = intent.getBooleanExtra(RELAUNCH_FOREGROUND_ACTIVITY_EXTRA, false);

        boolean launchBackground = intent.getBooleanExtra(LAUNCH_BACKGROUND_ACTIVITY_EXTRA, false);
        final int delay = intent.getIntExtra(START_ACTIVITY_FROM_FG_ACTIVITY_DELAY_MS_EXTRA, 0);
        boolean newTask = intent.getBooleanExtra(START_ACTIVITY_FROM_FG_ACTIVITY_NEW_TASK_EXTRA, false);
        if (launchBackground) {
            final Intent newIntent = new Intent();
            newIntent.setClass(this, BackgroundActivity.class);
            if (newTask) {
                newIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            }
            if (delay == 0) {
                startActivity(newIntent);
            } else {
                new Thread(() -> {
                    SystemClock.sleep(delay);
                    startActivity(newIntent);
                }).start();
            }
        }

        boolean launchSecond = intent.getBooleanExtra(
                LAUNCH_SECOND_BACKGROUND_ACTIVITY_EXTRA, false);
        if (launchSecond) {
            Intent newIntent = new Intent();
            newIntent.setClass(this, SecondBackgroundActivity.class);
            startActivity(newIntent);
        }
        IntentFilter filter = new IntentFilter();
        filter.addAction(ACTION_LAUNCH_BACKGROUND_ACTIVITIES);
        filter.addAction(ACTION_FINISH_ACTIVITY);
        registerReceiver(mReceiver, filter, Context.RECEIVER_EXPORTED);
    }

    @Override
    protected void onPause() {
        super.onPause();

        if (mRelaunch) {
            mRelaunch = false;
            SystemClock.sleep(50);
            startActivity(getIntent());
        }
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        unregisterReceiver(mReceiver);
    }
}