| /* |
| * 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.example.android.intentplayground; |
| |
| import static java.util.Collections.singletonList; |
| |
| import android.app.TaskStackBuilder; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.util.Log; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.LinkedList; |
| import java.util.List; |
| |
| /** |
| * TestBase holds methods to query, test and compare task hierarchies. |
| */ |
| public class TestBase { |
| static final String TAG = "TestBase"; |
| private List<TaskStackBuilder> mBuilders; |
| private Context mContext; |
| |
| TestBase(Context context, Node hierarchy) { |
| mBuilders = new LinkedList<>(); |
| mContext = context; |
| setActivities(hierarchy); |
| } |
| |
| /** |
| * Launch the activities specified by the constructor. |
| * |
| * @param style An enum that chooses which method to use to launch the activities. |
| */ |
| void startActivities(LaunchStyle style) { |
| switch (style) { |
| // COMMAND_LINE will only work if the application is installed with system permissions |
| // that allow it to use am shell command "am start ..." |
| case COMMAND_LINE: |
| mBuilders.forEach(tsb -> Arrays.stream(tsb.getIntents()) |
| .forEach(AMControl::launchInBackground)); |
| break; |
| case TASK_STACK_BUILDER: |
| mBuilders.forEach(tsb -> { |
| // TODO: does this indicate bug in ActivityManager? |
| // The launch of each activity needs to be delayed a bit or ActivityManager will7 |
| // skip creating most of them |
| try { |
| Thread.sleep(500); |
| tsb.startActivities(); |
| Thread.sleep(500); |
| } catch (InterruptedException ie) { |
| Log.e(TAG, ie.getMessage()); |
| } |
| }); |
| break; |
| case LAUNCH_FORWARD: |
| mBuilders.forEach(tsb -> { |
| // The launch of each activity needs to be delayed a bit or ActivityManager will |
| // skip creating most of them |
| try { |
| Thread.sleep(500); |
| } catch (InterruptedException ie) { |
| Log.e(TAG, ie.getMessage()); |
| } |
| ArrayList<Intent> nextIntents = new ArrayList<>(Arrays.asList( |
| tsb.getIntents())); |
| Intent launch = nextIntents.remove(0) |
| .putParcelableArrayListExtra(BaseActivity.EXTRA_LAUNCH_FORWARD, |
| nextIntents); |
| if (BuildConfig.DEBUG) { |
| Log.d(TAG, "Launching " + launch.getComponent().toString()); |
| } |
| mContext.startActivity(launch); |
| }); |
| break; |
| } |
| } |
| |
| void setActivities(Node hierarchy) { |
| // Build list of TaskStackBuilders from task hierarchy modeled by Node |
| if (hierarchy.mChildren.isEmpty()) return; |
| mBuilders.clear(); |
| hierarchy.mChildren.forEach(taskParent -> { |
| TaskStackBuilder tb = TaskStackBuilder.create(mContext); |
| Intent taskRoot = new Intent() |
| .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_MULTIPLE_TASK) |
| .setComponent(taskParent.mChildren.get(0).mName); |
| tb.addNextIntent(taskRoot); |
| taskParent.mChildren.subList(1, taskParent.mChildren.size()).forEach(activity -> |
| tb.addNextIntent(new Intent().setComponent(activity.mName))); |
| mBuilders.add(tb); |
| }); |
| // Edit the mIntent of the last activity in the last task so that it will relaunch the |
| // activity that constructed this TestBase |
| TaskStackBuilder tsb = mBuilders.get(mBuilders.size() - 1); |
| Intent lastIntent = tsb.editIntentAt(tsb.getIntentCount() - 1); |
| Intent launcherIntent = new Intent(mContext, mContext.getClass()); |
| lastIntent.putParcelableArrayListExtra(BaseActivity.EXTRA_LAUNCH_FORWARD, |
| new ArrayList<>(singletonList(launcherIntent))); |
| } |
| |
| public Context getContext() { return mContext; } |
| |
| /** |
| * An enum representing options for launching a series of tasks using this TestBase. |
| */ |
| enum LaunchStyle { TASK_STACK_BUILDER, COMMAND_LINE, LAUNCH_FORWARD} |
| } |
| |