| /* |
| * Copyright (C) 2013 DroidDriver committers |
| * |
| * 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 io.appium.droiddriver.util; |
| |
| import android.app.Activity; |
| import android.os.Looper; |
| import android.util.Log; |
| |
| import androidx.test.runner.lifecycle.ActivityLifecycleMonitorRegistry; |
| import androidx.test.runner.lifecycle.Stage; |
| |
| import java.util.Iterator; |
| import java.util.concurrent.Callable; |
| |
| /** Static helper methods for retrieving activities. */ |
| public class ActivityUtils { |
| private static final Callable<Activity> GET_RUNNING_ACTIVITY = |
| new Callable<Activity>() { |
| @Override |
| public Activity call() { |
| Iterator<Activity> activityIterator = |
| ActivityLifecycleMonitorRegistry.getInstance() |
| .getActivitiesInStage(Stage.RESUMED) |
| .iterator(); |
| return activityIterator.hasNext() ? activityIterator.next() : null; |
| } |
| }; |
| private static Supplier<Activity> runningActivitySupplier = |
| new Supplier<Activity>() { |
| @Override |
| public Activity get() { |
| try { |
| // If this is called on main (UI) thread, don't call runOnMainSync |
| if (Looper.myLooper() == Looper.getMainLooper()) { |
| return GET_RUNNING_ACTIVITY.call(); |
| } |
| |
| return InstrumentationUtils.runOnMainSyncWithTimeout(GET_RUNNING_ACTIVITY); |
| } catch (Exception e) { |
| Logs.log(Log.WARN, e); |
| return null; |
| } |
| } |
| }; |
| |
| /** |
| * Sets the Supplier for the running (a.k.a. resumed or foreground) activity. If a custom runner |
| * is used, this method must be called appropriately, otherwise {@link #getRunningActivity} won't |
| * work. |
| */ |
| public static synchronized void setRunningActivitySupplier(Supplier<Activity> activitySupplier) { |
| runningActivitySupplier = Preconditions.checkNotNull(activitySupplier); |
| } |
| |
| /** Shorthand to {@link #getRunningActivity(long)} with {@code timeoutMillis=30_000}. */ |
| public static Activity getRunningActivity() { |
| return getRunningActivity(30_000L); |
| } |
| |
| /** |
| * Waits for idle on main looper, then gets the running (a.k.a. resumed or foreground) activity. |
| * |
| * @return the currently running activity, or null if no activity has focus. |
| */ |
| public static Activity getRunningActivity(long timeoutMillis) { |
| // It's safe to check running activity only when the main looper is idle. |
| // If the AUT is in background, its main looper should be idle already. |
| // If the AUT is in foreground, its main looper should be idle eventually. |
| if (InstrumentationUtils.tryWaitForIdleSync(timeoutMillis)) { |
| return getRunningActivityNoWait(); |
| } |
| return null; |
| } |
| |
| /** |
| * Gets the running (a.k.a. resumed or foreground) activity without waiting for idle on main |
| * looper. |
| * |
| * @return the currently running activity, or null if no activity has focus. |
| */ |
| public static synchronized Activity getRunningActivityNoWait() { |
| return runningActivitySupplier.get(); |
| } |
| |
| public interface Supplier<T> { |
| /** |
| * Retrieves an instance of the appropriate type. The returned object may or may not be a new |
| * instance, depending on the implementation. |
| * |
| * @return an instance of the appropriate type |
| */ |
| T get(); |
| } |
| } |