| /* |
| * 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.overlaytest; |
| |
| import static java.util.concurrent.TimeUnit.SECONDS; |
| |
| import android.app.UiAutomation; |
| import android.content.res.Resources; |
| import android.os.ParcelFileDescriptor; |
| |
| import androidx.test.InstrumentationRegistry; |
| |
| import java.io.BufferedReader; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.nio.charset.StandardCharsets; |
| import java.util.Arrays; |
| import java.util.concurrent.Executor; |
| import java.util.concurrent.FutureTask; |
| |
| class LocalOverlayManager { |
| private static final long TIMEOUT = 30; |
| |
| public static void setEnabledAndWait(Executor executor, final String packageName, |
| boolean enable) throws Exception { |
| final String pattern = (enable ? "[x]" : "[ ]") + " " + packageName; |
| if (executeShellCommand("cmd overlay list").contains(pattern)) { |
| // nothing to do, overlay already in the requested state |
| return; |
| } |
| |
| final Resources res = InstrumentationRegistry.getContext().getResources(); |
| final String[] oldApkPaths = res.getAssets().getApkPaths(); |
| FutureTask<Boolean> task = new FutureTask<>(() -> { |
| while (true) { |
| if (!Arrays.equals(oldApkPaths, res.getAssets().getApkPaths())) { |
| return true; |
| } |
| Thread.sleep(10); |
| } |
| }); |
| executor.execute(task); |
| executeShellCommand("cmd overlay " + (enable ? "enable " : "disable ") + packageName); |
| task.get(TIMEOUT, SECONDS); |
| } |
| |
| private static String executeShellCommand(final String command) |
| throws Exception { |
| final UiAutomation uiAutomation = |
| InstrumentationRegistry.getInstrumentation().getUiAutomation(); |
| final ParcelFileDescriptor pfd = uiAutomation.executeShellCommand(command); |
| try (InputStream in = new ParcelFileDescriptor.AutoCloseInputStream(pfd)) { |
| final BufferedReader reader = new BufferedReader( |
| new InputStreamReader(in, StandardCharsets.UTF_8)); |
| StringBuilder str = new StringBuilder(); |
| String line; |
| while ((line = reader.readLine()) != null) { |
| str.append(line); |
| } |
| return str.toString(); |
| } |
| } |
| } |